nickname nickname interface interface-type interface-number: Specifies an interface on an RB. The nickname argument represents the nickname of the RB, a hexadecimal number in the range of 1 to fffe. The interface-type interface-number argument represents the type and number of the interface.

Usage guidelines

If you do not specify any parameters, this command displays all TRILL adjacency entries.

Examples

# Display all TRILL adjacency entries.

<Sysname> display trill adjacent-table

NextHop MAC address Interface

0x899b 00e0-fc58-123a XGE1/0/1

# Display the total number of TRILL adjacency entries.

<Sysname> display trill adjacent-table count

Total number of TRILL ADJ entries: 1

Table 1 Command output

Field	Description
NextHop	Nickname of the next-hop RB.
MAC address	MAC address of the next-hop RB.
Interface	Outgoing port of frames.
Total number of TRILL ADJ entries	Number of entries in the TRILL adjacency table.

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display trill brief

Use display trill brief to display brief TRILL information.

Syntax

display trill brief

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display brief TRILL information.

<Sysname> display trill brief

Network entity: 00.00a0.fc00.5806.00

Nickname: 0xfa1b

Nickname priority: 64

Tree-root priority: 32768

Cost style: Wide

Maximum allowed LSP received: 1492

Maximum allowed LSP originated: 1458

Maximum unicast load-balancing: 8

Overload status: None

Overload remaining time: N/A

Device role: Normal

Timers:

LSP-max-age: 1200s

LSP-refresh: 900s

Interval between SPFs: 10s 10ms 20ms

Table 2 Command output

Field	Description
Network entity	Name of the network entity.
Nickname	Nickname of the RB.
Nickname priority	Priority for the RB to hold the nickname.
Tree-root priority	Priority to be a TRILL distribution tree root.
Cost style	Cost type, which must be Wide.
Maximum allowed LSP received	Maximum length of LSPs that can be received.
Maximum allowed LSP originated	Maximum length of LSPs that can be originated.
Maximum unicast load-balancing	Maximum number of TRILL unicast equal-cost routes.
Overload status	Reason why the Overload bit is set: · Config—The Overload bit is set through configuration. · GR—The Overload bit is set during graceful restart. · GR/Config—The Overload bit is set through configuration during graceful restart of the Start type. · None—The Overload bit has not been set through configuration.
Overload remaining time	Lifetime of the set Overload bit, in seconds. If the lifetime has not been set or the lifetime has expired, this field displays N/A.
Device role	Device role: · Normal—Common RB. · Access—Access layer device.
Timers	TRILL timers.
LSP-max-age	LSP maximum age (in seconds).
LSP-refresh	LSP refresh interval (in seconds).
Interval between SPFs	Maximum SPF calculation interval (in seconds), minimum SPF calculation interval (in milliseconds), and SPF calculation incremental interval (in milliseconds).

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display trill fib

Use display trill fib to display TRILL FIB table information.

Syntax

display trill fib [ count | nickname nickname ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

nickname nickname: Specifies an RB by its nickname, a hexadecimal number in the range of 1 to fffe.

Usage guidelines

If you do not specify any parameters, this command displays all TRILL FIB entries.

Examples

# Display all TRILL FIB entries.

<Sysname> display trill fib

Flags: T-Transit, E-Egress

Destination HopCount NextHop Interface Flags

0xfa1b 63 N/A N/A E

0x899b 63 0x2a5c XGE1/0/1 T

# Display the total number of TRILL FIB entries.

<Sysname> display trill fib count

Total number of TRILL FIB destinations: 1

Total number of TRILL FIB entries: 2

Table 3 Command output

Field	Description
Destination	Nickname of the destination RB.
HopCount	Number of hops to the destination RB.
NextHop	Nickname of the next-hop RB.
Interface	Outgoing port of frames.
Total number of TRILL FIB destinations	Number of destination RBs in the TRILL FIB table.
Total number of TRILL FIB entries	Number of entries in the TRILL FIB table.

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display trill graceful-restart status

Use display trill graceful-restart status to display GR status information for TRILL.

Syntax

display trill graceful-restart status

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display GR status information for TRILL.

<Sysname> display trill graceful-restart status

Restart status: RESTARTING

Restart phase: LSDB synchronization

Restart interval: 300s

T3 remaining time: 140s

Total number of interfaces: 1

Number of waiting LSPs: 3

T2 remaining time: 55s

Interface: Ten-GigabitEthernet1/0/1

T1 remaining time: 2s

RA received: Y

CSNP received: N

T1 expiration number: 1

Table 4 Command output

Field	Description
Restart status	Restart status: · COMPLETE—GR is completed. · RESTARTING—GR of the Restart type is in process. · STARTING—GR of the Start type is in process.
Restart phase	Restart phase: · Finish—GR is completed. · LSDB synchronization—T2 synchronization phase. · LSDB generation—LSP generation phase. · MCS synchronization—Layer 2 multicast data synchronization phase. · SPF—Route calculation phase.
Restart interval	Restart interval in seconds.
T3 remaining time	Remaining time of the T3 timer (in seconds). The initial value is 65535 seconds. The value of this field is updated according to the remaining time in the RA packet.
Total number of interfaces	Total number of interfaces in the process.
T2 remaining time	Remaining time of the T2 timer (in seconds). For GR of the Restart type, the initial value of the field is fixed at 60 seconds. For GR of the Start type, the initial value is the value set by using the graceful-restart interval command (by default, 300 seconds).
Interface	Port name.
T1 remaining time	Remaining time of the T1 timer (in seconds). The initial value of the field is 3 seconds.
RA received	RA received flag bit: · Y—Set. · N—Not set.
CSNP received	CSNP received flag bit: · Y—Set. · N—Not set.
T1 expiration number	Number of T1 timer expiration times. The maximum value of the field is 10.

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display trill ingress-route

Use display trill ingress-route to display TRILL ingress forwarding information.

Syntax

display trill ingress-route [ vlan vlan-list ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vlan vlan-list: Specifies a space-separated list of up to 10 VLAN items. Each item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument. If you do not specify a VLAN, this command displays the TRILL ingress forwarding information for all VLANs.

Examples

# Display TRILL ingress forwarding information for all VLANs.

<Sysname> display trill ingress-route

Total number of VLANs: 1

-------------------------------------

VLAN ID:

List of local ports(in total: 1):

XGE1/0/1

-------------------------------------

VLAN ID:

Root nickname:

0x5801

List of remote ports(in total: 2):

XGE1/0/3

XGE1/0/4

Table 5 Command output

Field	Description
List of local ports(in total: 1)	Local ingress port list and total port number.
Root nickname	Nickname of root bridge in the VLAN's distribution tree.
List of remote ports(in total: 2)	Egress port list and total port number.

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display trill interface

Use display trill interface to display TRILL port information.

Syntax

display trill interface [ interface-type interface-number | verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, the command displays information about all TRILL ports.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief TRILL port information.

Examples

# Display brief information about all TRILL ports.

<Sysname> display trill interface

Interface Protocol state DRB Cost Link type

----------------------------------------------------------------------

Ten-GigabitEthernet1/0/1 UP Yes 2000 Access

# Display detailed information about all TRILL ports.

<Sysname> display trill interface verbose

Interface: Ten-GigabitEthernet1/0/1

Circuit ID: 0x01

Protocol state: UP

Nickname: 0xfa1b

MTU: 1470

DRB: Yes

Designated VLAN: 1

Link type: Access

CSNP timer: 10s

Hello timer: 10s

Hello multiplier: 3

LSP timer: 10ms

LSP transmit-throttle count: 5

Cost: 2000

AVF inhibited timer: 30s

Priority: 64

Track index: None

Track state: NotReady

Active AVF:

1-3, 5, 58

Inhibited AVF: None

Table 6 Command output

Field	Description
Circuit ID	Circuit ID of a physical interface.
Protocol state	State of TRILL: · UP. · DOWN.
Nickname	Nickname of the RB.
MTU	MTU (in bytes) of the link.
DRB	Whether the RB is elected as a DRB: · Yes—The RB is elected as a DRB. · No—The RB is not elected as a DRB. · Down—The TRILL port is down and does not participate in DRB election. · Suspended—The TRILL port is suspended because one of the following situations exists: ¡ The TRILL port is on the same broadcast network as a high-priority TRILL port of the RB. ¡ Loops exist on the TRILL port.
Designated VLAN	Effective designated VLAN. The value 65535 indicates that the port is down or no VLAN is allowed on the port.
Link type	TRILL port type: · Access—Access port without the alone attribute. · Access alone—Access port with the alone attribute. · Hybrid. · Trunk.
CSNP timer	CSNP interval in seconds.
Hello timer	Hello interval in seconds.
Hello multiplier	Hello multiplier.
LSP timer	Minimum LSP interval in milliseconds.
LSP transmit-throttle count	Maximum number of LSPs transmitted per interval.
Cost	Link cost of the port.
AVF inhibited time	AVF inhibition time in seconds.
Priority	DRB priority.
Track index	Track entries associated with the TRILL port. If the TRILL port is not associated with any track entries, this field displays None.
Track state	Track entry state: · NotReady—The interface is not associated with any track entries, or the Track module is not connected. · Positive—The tracked interface operates correctly. · Negative—The tracked interface is abnormal.
Active AVF	VLANs for which the RB is specified as the AVF by the DRB on the port. If the RB is not specified as the AVF for any VLANs, this field displays None.
Inhibited AVF	VLANs whose AVFs are inhibited on the port. If no such VLAN exists on the port, this field displays None.

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display trill lsdb

Use display trill lsdb to display TRILL LSDB information.

Syntax

display trill lsdb [ local | lsp-id lsp-id | verbose ] *

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

local: Specifies locally originated LSPs.

lsp-id lsp-id: Specifies an LSP by its ID. The lsp-id argument is in the format of SYSID.Pseudonode ID-fragment num. SYSID is the system ID of the originating node or pseudo-node, and fragment num is the fragment number of the LSP.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief LSDB information.

Usage guidelines

If you do not specify the local keyword and the lsp-id lsp-id option, this command displays information about all LSPs.

Examples

# Display brief information about the TRILL LSDB.

<Sysname> display trill lsdb

Flags: * - Self LSP

LSP ID Seq num Checksum Holdtime Length Overload

---------------------------------------------------------------------------

00a0.fc00.5806.00-00* 0x00000005 0xd315 361 78 0

# Display detailed information about the TRILL LSDB.

<Sysname> display trill lsdb verbose

LSP ID: 00a0.fc00.5806.00-00*

Sequence number: 0x00000005

Checksum: 0xd315

Holdtime: 1145s

Length: 78

Overload: 0

Source: 00a0.fc00.5806.00

TRILL version: 0x00

Nickname:

Nickname: 0xfa1b

Priority: 64

Tree-root priority: 32768

Trees:

Compute trees number: 1

Max compute trees number: 15

Used trees number: 1

Tree identifiers:

0x899b

Trees used identifiers:

0x899b

Interested VLANs:

Start: 4, End: 4, M4: 0, M6: 0

Start: 5, End: 6, M4: 1, M6: 0

Neighbor:

ID: 00e0.fc58.123a.01, Cost: 2000

Group address:

VLAN ID: 2

Group MAC address: 0100-5e01-0101

Table 7 Command output

Field	Description
LSP ID	LSP ID. An asterisk (*) after an ID indicates that the LSP is locally originated.
Seq num/Sequence number	Sequence number of the LSP.
Checksum	Checksum of the LSP.
Holdtime	Remaining lifetime of the LSP (in seconds).
Length	LSP length.
Overload	Whether the Overload bit is set in the LSP: · 0—Not set. · 1—Set.
Source	Number of the originating RB.
TRILL version	Highest TRILL version supported by the originating RB.
Nickname	Nickname information for the originating RB: · Nickname—Nickname of the RB. · Priority—Priority to hold the nickname. · Tree-root priority—Priority to be a TRILL distribution tree root.
Trees	TRILL distribution tree computation information for the originating RB: · Compute trees number—Number of TRILL distribution trees that the RB wants all RBs to compute. · Max compute trees number—Maximum number of TRILL distribution trees that the RB can compute. · Used trees number—Number of TRILL distribution trees to use when the RB is an ingress RB.
Tree identifiers	TRILL distribution trees that the originating RB requires other RBs to compute when the originating RB has the highest priority to be the distribution tree root.
Trees used identifiers	TRILL distribution trees used by the originating RB when the RB is an ingress RB.
Interested VLANs	Information about the VLANs that use the originating RB as the AVF: · Start—Start VLAN ID. · End—End VLAN ID. · M4—Whether an IPv4 multicast router exists in the VLAN range: ¡ 0—Exists. ¡ 1—Does not exist. · M6—Whether an IPv6 multicast router exists in the VLAN range: ¡ 0—Exists. ¡ 1—Does not exist.
Neighbor	Neighbor information for the originating RB: · ID—ID of the neighbor. · Cost—Cost of the link to the neighbor.
Group address	Multicast MAC address information for the originating RB: · VLAN ID—ID of the VLAN to which the multicast MAC addresses belong. · Group MAC address—Multicast group listeners.

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display trill mfib ingress

Use display trill mfib ingress to display ingress entries in the TRILL MFIB table.

Syntax

display trill mfib ingress [ vlan vlan-id [ local-entry | remote-entry ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vlan vlan-id: Specifies a VLAN by its ID in the range of 1 to 4094. If you do not specify a VLAN, the command displays information about all VLANs.

local-entry: Specifies local ingress entries. The frames sent by the ports in the local ingress entries do not need TRILL encapsulation.

remote-entry: Specifies remote ingress entries. The frames sent by the ports in the remote ingress entries need TRILL encapsulation.

Usage guidelines

If neither local-entry or remote-entry is specified, this command displays information about local and remote ingress entries.

Examples

# Display all ingress entries in the TRILL MFIB table.

<Sysname> display trill mfib ingress

----------------------------------------------------------------------

Ingress type: Local entry

VLAN ID: 1

Ports:

XGE1/0/1

----------------------------------------------------------------------

Ingress type: Remote entry

VLAN ID: 1

RootNickname: 0x5092

Ports:

XGE1/0/2

Table 8 Command output

Field	Description
Ingress type	Type of ingress entries: · Local entry. · Remote entry.
VLAN ID	VLAN ID of the entry.
RootNickname	Nickname of the root bridge.
Ports	Ports of the entry.

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display trill mfib transit

Use display trill mfib transit to display egress entries in the TRILL MFIB table.

Syntax

display trill mfib transit [ nickname nickname [ prune-entry | rpf-entry | vlan vlan-id [ mac mac-address ] ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

nickname nickname: Specifies an RB by its nickname, a hexadecimal number in the range of 1 to fffe. If no RB is specified, the command displays information about all RBs.

prune-entry: Specifies pruned entries. If you do not specify this keyword, the command displays information about all entries.

rpf-entry: Specifies RPF entries. If you do not specify this keyword, the command displays information about all entries.

vlan vlan-id: Specifies a VLAN by its ID in the range of 1 to 4094. If no VLAN is specified, the command displays information about all VLANs.

mac mac-address: Specifies a MAC address in the specified VLAN. If a VLAN is specified, but no MAC address is specified, the command displays information about all MAC addresses in the specified VLAN.

Examples

# Display all egress entries in the TRILL MFIB table.

<Sysname> display trill mfib transit

----------------------------------------------------------------------

Transit type: RPF entry

RootNickname: 0x5092

InNickname: 0x5092

Port: XGE1/0/1

----------------------------------------------------------------------

Transit type: RB entry

RootNickname: 0x5092

Flag: Egress/Transit

Ports:

XGE1/0/1

----------------------------------------------------------------------

Transit type: VLAN RB entry

RootNickname: 0x5092

VLAN ID: 1

Flag: Egress/Transit

Ports:

XGE1/0/1

Table 9 Command output

Field	Description
Transit type	Type of egress entries: · RB entry. · RPF entry. · VLAN RB entry—RB entries of the specified VLAN. · MAC VLAN RB entry—RB entries of the specified VLAN and MAC address.
RootNickname	Nickname of the root bridge.
InNickname	Nickname of the ingress RB.
VLAN ID	VLAN ID of the entry.
MAC address	MAC address of the entry.
Flag	Entry type: · Egress—Egress entries. · Transit—Transit entries. · Egress/Transit—Both transit and egress entries.
Port/Ports	Ports of the entry.

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display trill multicast-route

Use display trill multicast-route to display TRILL multicast routing table information, which includes the next-hop outgoing port list for multidestination frames based on multicast distribution trees.

Syntax

display trill multicast-route [ tree-root nickname [ vlan vlan-list [ mac-address mac-address ] ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

tree-root nickname: Specifies a TRILL distribution tree by its root RB's nickname, a hexadecimal number in the range of 1 to fffe. If you do not specify this option, the command displays multicast routing table information for all TRILL distribution trees.

vlan vlan-list: Specifies a space-separated list of up to 10 VLAN items. Each VLAN item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id1 to end-vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument. If no VLAN is specified, the command displays information about all VLANs.

mac-address mac-address: Specifies a MAC address. If no MAC address is specified, the command displays information about all MAC addresses.

Examples

# Display all entries in the TRILL multicast routing table.

<Sysname> display trill multicast-route

Root Flag

-------------------------------------

0x899b Valid

# Display multicast routing information for the TRILL distribution tree that is rooted at the RB 0x899b.

<Sysname> display trill multicast-route tree-root 899b

Root: 0x899b

LocalRcvFlag: True

List of VLANs:

1 to 10, 13, 40, 60 to 85, 200, 1001

List of outgoing ports (4 in total):

XGE1/0/1

XGE1/0/2

XGE1/0/3

XGE1/0/4

# Display multicast routing information for VLAN 1's distribution tree that is rooted at the RB 0x899b.

<Sysname> display trill multicast-route tree-root 899b vlan 1

Root: 0x899b

VLAN: 1

LocalRcvFlag: False

List of outgoing ports (3 in total):

XGE1/0/1

XGE1/0/2

XGE1/0/3

List of IPv4 multicast-router ports (2 in total):

XGE1/0/1

XGE1/0/2

List of IPv6 multicast-router ports (2 in total):

XGE1/0/2

XGE1/0/3

List of MAC addresses (4 in total):

0000-1111-00ee

00ff-1111-00ff

00ef-1111-00ef

0000-111f-00ff

# Display multicast routing information for VLAN 1's distribution tree that is rooted at the RB 0x899b and the MAC address 0011-11FF-0022.

<Sysname> display trill multicast-route tree-root 899b vlan 1 mac-address 0011-11ff-0022

Root: 0x899b

VLAN: 1

MAC address: 0011-11ff-0022

LocalRcvFlag: True

List of outgoing ports (2 in total):

XGE1/0/3

XGE1/0/4

Table 10 Command output

Field	Description
Root	Nickname of the TRILL distribution tree's root RB.
VLAN	ID of the VLAN.
Flag	Whether the root bridge is valid: · Invalid. · Valid.
LocalRcvFlag	Local receiving flag: · False—The local end does not de-encapsulate the TRILL frame. · True—The local end de-encapsulates the TRILL frame and forwards the frame.
List of outgoing ports (4 in total)	Outgoing port list and total port number. If no outgoing port exists, this field displays None.
List of VLANs (2 in total)	VLAN list and total VLAN number. If no VLAN exists, this field displays None.
List of IPv4 multicast-router ports (2 in total)	Port list of the IPv4 multicast router and total port number.
List of IPv6 multicast-router ports (2 in total)	Port list of the IPv6 multicast router and total port number.
List of MAC addresses (4 in total)	MAC address list and total MAC address number.

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display trill neighbor-table

Use display trill neighbor-table to display TRILL neighbor table information.

Syntax

display trill neighbor-table

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display TRILL neighbor table information.

<Sysname> display trill neighbor-table

Total number of nexthops: 3

NextHop MAC address Interface

--------------------------------------------------------------------------

0x899b 00e0-fc58-123a XGE1/0/1

Table 11 Command output

Field	Description
NextHop	Nickname of the next-hop RB.
MAC address	MAC address of the next-hop RB.
Interface	Outgoing port.

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display trill peer

Use display trill peer to display TRILL neighbor statistics.

Syntax

display trill peer [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, the command displays information about all interfaces.

Examples

# Display TRILL neighbor statistics for Ten-GigabitEthernet 1/0/1.

<Sysname> display trill peer interface ten-gigabitethernet 1/0/1

System ID: 00e0.fc58.123a

Interface: Ten-GigabitEthernet1/0/1

Circuit ID: 00e0.fc58.123a.01

State: Up

Holdtime: 8s

DRB priority: 64

Nickname: 0x899b

Uptime: 00:38:15

Table 12 Command output

Field	Description
System ID	System ID of the neighbor.
Interface	Local TRILL port directly connected to the neighbor.
Circuit ID	LSP number of the pseudonode.
State	Neighbor state: · Up. · Down.
Holdtime	Remaining holding time (in seconds) of the adjacency. If no Hello frame is received from a neighbor within the holding time, the neighbor is considered invalid. When a Hello frame is received from a neighbor within the holding time, the holding time is restarted.
DRB priority	DRB priority of the neighbor port.
Nickname	Nickname of the neighbor.
Uptime	Time for which the adjacency has been held.

‌

display trill rpf-table

Use display trill rpf-table to display TRILL RPF check table information.

Syntax

display trill rpf-table tree-root nickname

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

tree-root nickname: Specifies a TRILL distribution tree by its root RB's nickname, a hexadecimal number in the range of 1 to fffe.

Usage guidelines

The RB uses the TRILL RPF check table to check whether the incoming port of a multidestination frame is valid. The egress RB for a multidestination frame is the root bridge of the frame's distribution tree. The RB checks the RPF check table for the frame's expected incoming port based on the frame's egress and ingress RB nicknames. If the frame is not received on the expected incoming port, the RB considers the frame invalid and drops it.

Examples

# Display TRILL RPF check table entries for the TRILL distribution tree that is rooted at the RB 0x899b.

<Sysname> display trill rpf-table tree-root 899b

Ingress-nickname Expected-rcv-ports

---------------------------------------------

0x1fff XGE1/0/1

0x1ff0 XGE1/0/2

0x0ffe XGE1/0/3

Table 13 Command output

Field	Description
Ingress-nickname	Nickname of the ingress RB.
Expected-rcv-ports	Expected incoming port.

‌

display trill topology

Use display trill topology to display TRILL topology information.

Syntax

display trill topology [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

verbose: Displays detailed TRILL topology information. If you do not specify this keyword, the command displays brief TRILL topology information.

Examples

# Display brief TRILL topology information.

<Sysname> display trill topology

TRILL topology information

--------------------------

Flags: O-Node is overloaded R-Node is directly reachable

D-Node or link is to be deleted

SPF node Node flag SPF link Link cost Link flag

--------------------------------------------------------------------------

0011.2200.0201.00 -/-/-

-->0011.2200.0301.01 20000 -

0011.2200.0301.01 -/R/-

-->0011.2200.0201.00 0 -

-->0011.2200.0301.00 0 -

0011.2200.0301.00 -/-/-

-->0011.2200.0301.01 20000 -

# Display detailed TRILL topology information.

<Sysname> display trill topology verbose

TRILL topology information

--------------------------

Flags: O-Node is overloaded R-Node is directly reachable

D-Node or link is to be deleted

SPF node: 0011.2200.0201.00

Node flag: -/-/-

SPF links count: 1

-->0011.2200.0301.01

Link cost: 20000

Link flag: -

Link sources: 1

Link source 1

Type: Adjacent Interface: N/A

Cost: 20000 NextHop: N/A

SPF node: 0011.2200.0301.01

Node flag: -/R/-

SPF links: 2

-->0011.2200.0201.00

Link cost: 0

Link flag: -

Link sources count: 1

Link source 1

Type: Remote Interface: N/A

Cost: 0 NextHop: N/A

-->0011.2200.0301.00

Link cost: 0

Link flag: -

Link sources: 1

Link source 1

Type: Remote Interface: XGE1/0/1

Cost: 0 NextHop: 0x0002

SPF node: 0011.2200.0301.00

Node flag: -/-/-

SPF links: 1

-->0011.2200.0301.01

Link cost: 20000

Link flag: -

Link sources: 1

Link source 1

Type: Remote Interface: N/A

Cost: 20000 NextHop: N/A

Table 14 Command output

Field	Description
SPF node	SPF node ID.
Node flag	Flag that indicates the node state: · O—The node is in overload state and is not usable. · R—The node is directly connected. · D—The node is to be deleted.
SPF links	Number of SPF links.
Link flag	Flag that indicates the link state. If the link is to be deleted, this filed displays D.
Link sources	Number of link sources.
Link source 1	Information about a link source.
Type	Link source type: · Adjacent—The link source is a neighbor. · Remote—The link source is not a neighbor.
Cost	Link cost from the RB to the link source.

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display trill unicast-route

Use display trill unicast-route to display TRILL unicast routing table information.

Syntax

display trill unicast-route [ nickname nickname ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

nickname nickname: Specifies an RB by its nickname, a hexadecimal number in the range of 1 to fffe. If no RB is specified, the command displays information about all RBs.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Examples

# Display brief information about all entries in the TRILL unicast routing table.

<Sysname> display trill unicast-route

Destinations: 2 Unicast routes: 2

Destination Interface NextHop

-----------------------------------------------

0xfa1b N/A N/A

0x899b XGE1/0/1 Direct

# Display detailed information about all entries in the TRILL unicast routing table.

<Sysname> display trill unicast-route verbose

Destinations: 2 Unicast routes: 2

Destination: 0xfa1b

NextHop count: 0 Neighbor ID: 0x0000

Destination: 0x899b

NextHop count: 1 Neighbor ID: 0x0101

Interface: XGE1/0/1 NextHop: Direct

Table 15 Command output

Field	Description
Destinations	Number of destination RBs.
Unicast routes	Number of unicast routes.
Destination	Nickname of the destination RB.
Interface	Outgoing port.
NextHop	Nickname of the next-hop RB.
NextHop count	Number of next hops.
Neighbor ID	ID of the neighbor associated with the next hop.

‌

flash-flood

Use flash-flood to enable TRILL LSP fast advertisement.

Use undo flash-flood to disable TRILL LSP fast advertisement.

Syntax

flash-flood [ flood-count flooding-count | max-timer-interval flooding-interval ] *

undo flash-flood

Default

TRILL LSP fast advertisement is disabled.

Views

TRILL view

Predefined user roles

network-admin

Parameters

flood-count flooding-count: Specifies the maximum number of LSPs that can be fast advertised. The value range for the flooding-count argument is 1 to 15, and the default value is 5.

max-timer-interval flooding-interval: Specifies the delay before fast advertisement is performed. The value range for the flooding-interval argument is 0 to 50000 milliseconds. The default value is 0, which indicates that LSP fast advertisement is performed without delay.

Usage guidelines

LSP fast advertisement enables TRILL to immediately advertise the specified number of LSPs that invoke SPF calculation. This mechanism improves network convergence time.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Enable TRILL LSP fast advertisement, set the maximum number to 10 for fast advertised LSPs, and set the advertisement delay to 10 milliseconds.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] flash-flood flood-count 10 max-timer-interval 10

flush-policy difference

Use flush-policy difference to enable incremental flush for TRILL multicast routing entries.

Use undo flush-policy difference to restore the default.

Syntax

flush-policy difference

undo flush-policy difference

Default

Incremental flush is disabled for TRILL multicast routing entries.

Views

TRILL view

Predefined user roles

network-admin

Usage guidelines

TRILL multicast routing entries are classified into three levels according to the following key combinations:

· RB—Root bridge of a TRILL distribution tree.

· RB+VLAN—Root bridge and VLAN of a TRILL distribution tree.

· RB+VLAN+MAC—Root bridge and VLAN of a TRILL distribution tree and a MAC address.

An entry that is identified by fewer keys is at a higher level.

The incremental flush feature enables the device to compare the outgoing port list and local receiving flag of an entry with its next higher level entry. If the two entries have the same outgoing port list and local receiving flag, the higher level entry is issued to the TRILL FIB. For example, if entry RB 2 and entry RB 2+VLAN 10 have the same outgoing port list and local receiving flag, entry RB 2 is issued.

This feature reduces the number of flushed entries in the scenarios where an entry and its next higher level entry have the same outgoing port list and local receiving flag. Enabling this feature in other scenarios causes the system to issue a large number of entries at the same time and degrades performance.

Examples

# Enable incremental flush for TRILL multicast routing entries.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] flush-policy difference

graceful-restart

Use graceful-restart to enable GR for TRILL.

Use undo graceful-restart to disable GR for TRILL.

Syntax

graceful-restart

undo graceful-restart

Default

GR is disabled for TRILL.

Views

TRILL view

Predefined user roles

network-admin

Examples

# Enable GR for TRILL.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] graceful-restart

graceful-restart interval

Use graceful-restart interval to set the GR restart interval for TRILL.

Use the undo graceful-restart interval to restore the default.

Syntax

graceful-restart interval interval

undo graceful-restart interval

Default

The GR restart interval is 300 seconds for TRILL.

Views

TRILL view

Predefined user roles

network-admin

Parameters

interval: Specifies the GR restart interval in the range of 30 to 1800 seconds.

Examples

# Set the restart interval to 120 seconds for TRILL.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] graceful-restart interval 120

graceful-restart suppress-sa

Use graceful-restart suppress-sa to suppress the SA bit during graceful restart.

Use undo graceful-restart suppress-sa to restore the default.

Syntax

graceful-restart suppress-sa

undo graceful-restart suppress-sa

Default

The SA bit is set during graceful restart.

Views

TRILL view

Predefined user roles

network-admin

Usage guidelines

Setting the SA bit prevents neighbors from advertising the adjacency with the GR restarter when the forwarding table is not usable on the restarter. This prevents route blackholes by temporarily excluding the restarter from the SPF calculation on other RBs. If fast restart is required, you can suppress the SA bit.

Examples

# Suppress the SA bit during graceful restart.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] graceful-restart suppress-sa

ingress assign-delay

Use ingress assign-delay to set the delay timer for the RB to switch ingress traffic to a new distribution tree.

Use undo ingress assign-delay to restore the default.

Syntax

ingress assign-delay delay

undo ingress assign-delay

Default

The delay timer is 300 seconds.

Views

TRILL view

Predefined user roles

network-admin

Parameters

delay: Specifies the delay timer in the range of 1 to 3600 seconds.

Usage guidelines

When a distribution tree is added, the RB switches ingress traffic of some VLANs that use the RB as the AVF to the new tree to implement load balancing. However, the RB cannot use the new distribution tree to forward traffic before other RBs are ready to use the new tree. In this case, you can set a delay timer for the RB to switch ingress traffic to the new distribution tree.

Examples

# Set the delay timer to 600 seconds for the RB to switch ingress traffic to a new distribution tree.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] ingress assign-delay 600

Related commands

ingress assign-rule load-balancing

Use ingress assign-rule load-balancing to enable load balancing over TRILL distribution trees.

Use undo ingress assign-rule to restore the default.

Syntax

ingress assign-rule load-balancing

undo ingress assign-rule

Default

Load balancing over TRILL distribution trees is disabled.

Views

TRILL view

Predefined user roles

network-admin

Usage guidelines

This command is applicable to the scenario where a forwarding VLAN is deleted on the RB and load balancing over existing distribution trees is required.

Ingress traffic is load balanced in any of the following situations, regardless of whether load balancing is enabled:

· A forwarding VLAN is added.

· A distribution tree is added or deleted.

Examples

# Enable load balancing over TRILL distribution trees.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] ingress assign-rule load-balancing

log-peer-change enable

Use log-peer-change enable to enable logging of TRILL neighbor changes.

Use undo log-peer-change enable to disable logging of TRILL neighbor changes.

Syntax

log-peer-change enable

undo log-peer-change enable

Default

Logging of TRILL neighbor changes is enabled.

Views

TRILL view

Predefined user roles

network-admin

Usage guidelines

This command enables TRILL to output neighbor changes to the configuration terminal.

Examples

# Disable logging of TRILL neighbor changes.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] undo log-peer-change enable

lsp-length originate

Use lsp-length originate to set the maximum length of the LSPs that the RB can originate.

Use undo lsp-length originate to restore the default.

Syntax

lsp-length originate size

undo lsp-length originate

Defaults

The maximum length of originated LSPs is 1458 bytes.

Views

TRILL view

Predefined user roles

network-admin

Parameters

size: Specifies the maximum length of originated LSPs, in the range of 512 to 16384 bytes.

Usage guidelines

The maximum length of originated LSPs cannot be greater than the maximum length of received LSPs. Otherwise, the system generates an error message.

The RB selects the smallest value from the following values as the actual maximum length of LSPs to be sent to a neighbor:

· The configured maximum length of originated LSPs.

· The interface MTU.

· The maximum originated LSP length carried in the LSPs sent by neighbors.

Examples

# Set the maximum length of originated LSPs to 1024 bytes.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] lsp-length originate 1024

Related commands

lsp-length receive

Use lsp-length receive to set the maximum length of the LSPs that the RB can receive.

Use undo lsp-length receive to restore the default.

Syntax

lsp-length receive size

undo lsp-length receive

Defaults

The maximum length of received LSPs is 1492 bytes.

Views

TRILL view

Predefined user roles

network-admin

Parameters

size: Specifies the maximum length of received LSPs, in the range of 512 to 16384 bytes.

Usage guidelines

The maximum length of originated LSPs cannot be greater than the maximum length of received LSPs. Otherwise, the system generates an error message.

Examples

# Set the maximum length of received LSPs to 1024 bytes.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] lsp-length receive 1024

Examples

lsp-length originate

max-unicast-load-balancing

Use max-unicast-load-balancing to set the maximum number of TRILL unicast equal-cost routes.

Use undo max-unicast-load-balancing to restore the default.

Syntax

max-unicast-load-balancing number

undo max-unicast-load-balancing

Defaults

The maximum number of TRILL unicast equal-cost routes equals the maximum number of ECMP routes.

Views

TRILL view

Predefined user roles

network-admin

Parameters

number: Specifies the maximum number of TRILL unicast equal-cost routes. The value range for the number argument is 1 to the maximum number of ECMP routes. The value of 1 indicates that load balancing is not performed.

Usage guidelines

The maximum number of TRILL unicast equal-cost routes is restricted by the maximum number of ECMP routes set by using the max-ecmp-num command. The value range for the maximum number of ECMP routes is 1 to 128, and the default value is 8. If you set the maximum number of ECMP routes to n (1≤n≤128), the value range for the number argument of the max-unicast-load-balancing command is 1 to n. For more information about the max-ecmp-num command, see Layer 3—IP Routing Command Reference.

Examples

# Set the maximum number of TRILL unicast equal-cost routes to 3.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] max-unicast-load-balancing 3

multicast multi-thread enable

Use multicast multi-thread enable to enable TRILL distribution tree multithread calculation.

Use undo multicast multi-thread enable to disable TRILL distribution tree multithread calculation.

Syntax

multicast multi-thread enable

undo multicast multi-thread enable

Default

TRILL distribution tree multithread calculation is disabled.

Views

TRILL view

Predefined user roles

network-admin

Usage guidelines

Enabling or disabling this feature clears dynamic running statistics of the TRILL process.

This command enables a multicore CPU device to improve TRILL distribution tree calculation efficiency by using each thread to calculate a distribution tree.

If you enable TRILL distribution tree multithread calculation on a single-core CPU device, calculation efficiency might not be improved.

Examples

# Enable TRILL distribution tree multithread calculation.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] multicast multi-thread enable

Related commands

reset trill

multicast-ecmp enable

Use multicast-ecmp enable to enable TRILL multicast Equal Cost Multiple Path (ECMP).

Use undo multicast-ecmp enable to disable TRILL multicast ECMP.

Syntax

multicast-ecmp enable [ p2p-ignore ]

undo multicast-ecmp enable

Default

TRILL multicast ECMP is disabled.

Views

TRILL view

Predefined user roles

network-admin

Parameters

p2p-ignore: Uses one of the equal-cost routes between the DRB and its neighbor to forward multicast traffic when the pseudonode bypass feature is enabled on the DRB. If you do not specify this keyword, all the equal-cost routes are used to share traffic. To communicate with a third-party device, you can specify this keyword as required.

Usage guidelines

CAUTION:

For multicast traffic to be forwarded correctly, make sure the status of TRILL multicast ECMP is the same across the TRILL network.

‌

When multicast ECMP is disabled, TRILL distribution trees do not use equal-cost routes to share traffic. When multicast ECMP is enabled, TRILL assigns equal-cost routes to multiple TRILL distribution trees to improve load sharing performance.

Examples

# Enable TRILL multicast ECMP.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] multicast-ecmp enable

nickname

Use nickname to configure the nickname for the RB.

Use undo nickname to restore the default.

Syntax

nickname nickname [ priority priority ]

undo nickname nickname

Defaults

The system automatically assigns nicknames to RBs. The priority is 64 for an RB to hold a nickname.

Views

TRILL view

Predefined user roles

network-admin

Parameters

nickname: Specifies an RB by its nickname, a hexadecimal number in the range of 1 to ffbf.

priority priority: Specifies a priority for the RB to hold the nickname. The value range for the priority argument is 129 to 255, and the default value is 192.

Usage guidelines

A nickname is an RB's address in the TRILL network.

In the TRILL network, when multiple RBs hold the same nickname, the RB with the highest priority uses the nickname.

When the RBs also have the same priority, the RB with the highest system ID uses the nickname. The system automatically assigns new nicknames to the other RBs.

Examples

# Set the nickname to 0x0001 for the RB, and set the priority to 198 for the RB to hold the nickname.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] nickname 0001 priority 198

ping trill

Use ping trill to test the reachability of an RB and display ping TRILL statistics.

Syntax

Views

Any view

Predefined user roles

network-admin

Parameters

-c count: Specifies the number of OAM echo requests that are sent to the destination. The value range is 1 to 4294967295, and the default value is 5.

-h ttl: Specifies the TTL value of OAM echo requests. The value range is 1 to 63, and the default value is 63.

-i interface-type interface-number: Specifies the source interface for OAM echo requests. If you do not specify this option when multiple equal-cost routes to the destination exist, the system uses the first egress interface as the source interface.

-m interval: Specifies the sending interval for OAM echo requests. The value range is 1 to 10000 milliseconds, and the default value is 200 milliseconds.

-priority priority: Specifies the 802.1p priority in the inner Ethernet header of the OAM echo requests. The value range is 0 to 7, and the default value is 0. A higher value indicates a higher priority.

-t timeout: Specifies the timeout time of an OAM echo reply. The value range is 0 to 65535 milliseconds, and the default value is 2000 milliseconds. If the source does not receive an OAM echo reply within the timeout, it considers the OAM echo reply times out.

nickname: Specifies a destination RB by its nickname in the range of 1 to ffbf in hexadecimal format.

Usage guidelines

To abort the ping TRILL operation during the execution of the command, press Ctrl+C.

Examples

# Test whether RB 0xbca3 is reachable.

<Sysname> ping trill bca3

Ping TRILL 0xbca3, press CTRL_C to break

reply from 0xbca3: seq=0 ttl=63 time=0.851 ms

reply from 0xbca3: seq=1 ttl=63 time=0.812 ms

reply from 0xbca3: seq=2 ttl=63 time=0.849 ms

reply from 0xbca3: seq=3 ttl=63 time=0.831 ms

reply from 0xbca3: seq=4 ttl=63 time=0.872 ms

--- Ping TRILL statistics for 0xbca3 ---

5 packet(s) transmitted, 5 packet(s) received, 0.00% packet loss

round-trip min/avg/max = 0.812/0.843/0.872 ms

Table 16 Command output

Field	Description
Ping TRILL 0xbca3, press CTRL_C to break	Test whether RB 0xbca3 is reachable. Press Ctrl+C to abort the ping TRILL operation.
reply from 0xbca3: seq=0 ttl=63 time=0.851 ms	Received echo replies from RB 0xbca3. If no echo reply is received within the timeout period, this field displays Request time out. · seq—Packet sequence number. · ttl—TTL value in the echo reply. · time—Response time.
--- Ping TRILL statistics for 0xbca3 ---	Statistics on data received and sent in the ping TRILL operation.
5 packet(s) transmitted	Number of sent OAM echo requests.
5 packet(s) received	Number of received OAM echo replies.
0.00% packet loss	Percentage of unacknowledged packets to the total sent packets.
round-trip min/avg/max = 0.812/0.843/0.872 ms	Minimum/average/maximum response time in milliseconds.

‌

reset trill

Use reset trill to clear dynamic running statistics of the TRILL process.

Syntax

reset trill

Views

User view

Predefined user roles

network-admin

Examples

# Clear dynamic running statistics of the TRILL process.

<Sysname> reset trill

set ingress-load-balancing

Use set ingress-load-balancing to perform one-time load balancing over TRILL distribution trees.

Syntax

set ingress-load-balancing

Views

TRILL view

Predefined user roles

network-admin

Usage guidelines

This command might affect the traffic forwarding in VLANs whose traffic is switched to new distribution trees.

If traffic is not evenly distributed over distribution trees when load balancing is disabled, you can perform one-time load balancing over TRILL distribution trees.

Examples

# Perform one-time load balancing over TRILL distribution trees.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] set ingress-load-balancing

Related commands

ingress assign-rule load-balancing

set overload

Use set overload to set the Overload bit of LSPs and the lifetime of the set Overload bit.

Use undo set overload to restore the default.

Syntax

set overload [ timeout ]

undo set overload

Defaults

The Overload bit of LSPs is not set.

Views

TRILL view

Predefined user roles

network-admin

Parameters

timeout: Specifies the lifetime of the set Overload bit. The value range for this argument is 5 to 3600 seconds. By default, the lifetime of the set Overload bit is infinite, which means that the Overload bit remains set until the undo set overload command is executed.

Usage guidelines

Do not configure this command on the root RB of a TRILL distribution tree. The root RB cannot forward traffic when the Overload bit of LSPs is set on the RB.

Examples

# Set the Overload bit of LSPs and set the lifetime of the set Overload bit to 1200 seconds.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] set overload 1200

snmp context-name

Use snmp context-name to set an SNMP context name for TRILL.

Use undo snmp context-name to restore the default.

Syntax

snmp context-name context-name

undo snmp context-name

Default

No SNMP context name is set for TRILL.

Views

TRILL view

Predefined user roles

network-admin

Parameters

context-name: Specifies a context name, a case-sensitive string of 1 to 32 characters.

Usage guidelines

TRILL shares the standard IS-IS MIB with IS-IS. The standard IS-IS MIB provides only single-instance MIB objects. For SNMP to correctly identify TRILL's management information in the standard IS-IS MIB, you must configure a unique context name for TRILL.

Context is a method introduced to SNMPv3 for multiple-instance management. For SNMPv1/v2c, you must specify a community name as a context name for protocol identification.

Examples

# Set the context name to trill for TRILL.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] snmp context-name trill

snmp-agent trap enable trill

Use snmp-agent trap enable trill to enable SNMP notifications for TRILL.

Use undo snmp-agent trap enable trill to disable SNMP notifications for TRILL.

Syntax

Default

SNMP notifications are enabled for TRILL.

Views

System view

Predefined user roles

network-admin

Parameters

adjacency-state-change: Specifies notifications about TRILL adjacency state changes.

area-mismatch: Specifies notifications about mismatches in area addresses between Hello packets.

buffsize-mismatch: Specifies notifications about buffer size mismatches for LSPs.

id-length-mismatch: Specifies notifications about mismatches in system ID lengths of TRILL frames.

lsdboverload-state-change: Specifies notifications about LSDB overload state changes.

lsp-parse-error: Specifies notifications about LSP packet parse errors.

lsp-size-exceeded: Specifies notifications about oversized LSPs that result in flooding failures.

max-seq-exceeded: Specifies notifications about LSPs with exceeded sequence numbers.

maxarea-mismatch: Specifies notifications about mismatches in maximum area address values.

new-drb: Specifies notifications sent about becoming new DRBs.

own-lsp-purge: Specifies notifications about attempts to purge local LSPs.

protocol-support: Specifies notifications about supported protocol mismatches.

rejected-adjacency: Specifies notifications about mismatched Hello adjacencies that have been rejected.

skip-sequence-number: Specifies notifications about skipping duplicate LSP sequence numbers.

topology-change: Specifies notifications about AVF state changes.

version-skew: Specifies notifications about mismatches in Hello packet protocol versions.

Usage guidelines

To report critical TRILL events to an NMS, enable SNMP notifications for TRILL. For TRILL event notifications to be sent correctly, you must also configure SNMP on the device. For more information about SNMP configuration, see the network management and monitoring configuration guide for the device.

If no keyword is specified, this command and the undo form of this command enable and disable all SNMP notifications for TRILL, respectively.

Examples

# Disable all SNMP notifications for TRILL.

<Sysname> system-view

[Sysname] undo snmp-agent trap enable trill

system-id

Use system-id to configure a system ID for the RB.

Use undo system-id to restore the default.

Syntax

system-id system-id

undo system-id

Defaults

The RB automatically generates a system ID based on its MAC address.

Views

TRILL view

Predefined user roles

network-admin

Parameters

system-id: Specifies a system ID in the format of xxxx.xxxx.xxxx, where each x is a hexadecimal number.

Usage guidelines

The system resets the TRILL process when the RB's system ID changes.

Examples

# Set the system ID to 1010.1020.1030 for the RB.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] system-id 1010.1020.1030

timer lsp-generation

Use timer lsp-generation to set the TRILL LSP generation timer parameters.

Use undo timer lsp-generation to restore the default.

Syntax

timer lsp-generation maximum-interval [ minimum-interval [ incremental-interval ] ]

undo timer lsp-generation

Default

The maximum interval is 2 seconds, the minimum interval is 10 milliseconds, and the incremental interval is 20 milliseconds.

Views

TRILL view

Predefined user roles

network-admin

Parameters

maximum-interval: Specifies the maximum LSP generation interval in the range of 1 to 120 seconds.

minimum-interval: Specifies the minimum LSP generation interval in the range of 10 to 60000 milliseconds. The value must be a multiple of 10 and smaller than the maximum LSP generation interval.

incremental-interval: Specifies the LSP generation incremental interval in the range of 10 to 60000 milliseconds. The value must be a multiple of 10 and smaller than the maximum LSP generation interval.

Usage guidelines

By adjusting the TRILL LSP generation timer parameters, you can prevent frequent network changes from consuming excessive bandwidth and device resources.

When the network is stable, the LSP generation timer is set to the minimum interval for each LSP generation. When the network is unstable, the LSP generation timer is added by the incremental interval for each LSP generation until the maximum interval is reached.

Examples

# Set the maximum LSP generation interval to 10 seconds, the minimum interval to 100 milliseconds, and the incremental interval to 200 milliseconds.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] timer lsp-generation 10 100 200

timer lsp-max-age

Use timer lsp-max-age to configure the maximum age of LSPs.

Use undo timer lsp-max-age to restore the default.

Syntax

timer lsp-max-age time

undo timer lsp-max-age

Default

The LSP maximum age is 1200 seconds.

Views

TRILL view

Predefined user roles

network-admin

Parameters

time: Specifies the LSP maximum age in the range of 3 to 65535 seconds.

Usage guidelines

The RB uses the configured LSP maximum age as the remaining lifetime of the LSPs that it originates. When the RB detects that the remaining lifetime of an LSP reaches 0 seconds in the LSDB, the RB performs the following tasks:

1. Removes the LSP's content.

2. Keeps the LSP's digest.

3. Sets the LSP's remaining lifetime to 0 and purges the LSP from the network by advertising the LSP to other RBs.

The actual refresh interval of an LSP is affected by both the minimum LSP interval and the maximum number of LSPs transmitted per interval. To prevent LSPs from being aged out accidentally, set the LSP maximum age and the LSP refresh interval appropriately.

Examples

# Set the LSP maximum age to 1500 seconds.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] timer lsp-max-age 1500

Related commands

timer lsp-refresh

trill timer lsp

timer lsp-refresh

Use timer lsp-refresh to configure the LSP refresh interval.

Use undo timer lsp-refresh to restore the default.

Syntax

timer lsp-refresh time

undo timer lsp-refresh

Default

The LSP refresh interval is 900 seconds.

Views

TRILL view

Predefined user roles

network-admin

Parameters

time: Specifies the LSP refresh interval in the range of 1 to 65534 seconds.

Usage guidelines

A locally originated LSP is forcibly refreshed when its remaining life time is no greater than n: n = LSP maximum age – LSP refresh interval. This mechanism avoids frequent LSP aging and ensures network stability.

Examples

# Set the LSP refresh interval to 1000 seconds.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] timer lsp-refresh 1000

Related commands

timer lsp-max-age

trill timer lsp

timer spf

Use timer spf to set the SPF calculation timer parameters for TRILL.

Use undo timer spf to restore the default.

Syntax

timer spf maximum-interval [ minimum-interval [ incremental-interval ] ]

undo timer spf

Defaults

The maximum SPF calculation interval is 10 seconds. The minimum SPF calculation interval is 10 milliseconds. The SPF calculation incremental interval is 20 milliseconds.

Views

TRILL view

Predefined user roles

network-admin

Parameters

maximum-interval: Specifies the maximum SPF calculation interval in the range of 1 to 120 seconds.

minimum-interval: Specifies the minimum SPF calculation interval in the range of 10 to 60000 milliseconds. The value must be a multiple of 10 and smaller than the maximum SPF calculation interval.

incremental-interval: Specifies the SPF calculation incremental interval in the range of 10 to 60000 milliseconds. The value must be a multiple of 10 and smaller than the maximum SPF calculation interval.

Usage guidelines

The RB uses the SPF algorithm to calculate a shortest path tree with itself as the root based on the local LSDB. The RB determines the next hop according to the shortest path tree.

By adjusting the SPF calculation timer parameters, you can prevent frequent network changes from consuming excessive bandwidth and device resources.

When the network is stable, the SPF calculation interval for continuous calculations is reduced to the minimum interval. When the network is unstable, the SPF calculation interval is added by incremental-interval × 2n-2 (n is the number of continuous SPF calculation times) for each SPF calculation until the maximum interval is reached.

Examples

# Set the maximum SPF calculation interval to 15 seconds, the minimum interval to 100 milliseconds, and the incremental interval to 200 milliseconds.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] timer spf 15 100 200

tracert trill

Use tracert trill to trace the path the TRILL OAM packets traverse from the RB to a destination RB.

Syntax

Views

Any view

Predefined user roles

network-admin

Parameters

-f first-ttl: Specifies the TTL value of the first packet sent to the destination. The value range is 0 to 63, and the default value is 0. This TTL cannot be greater than the value of the max-ttl argument.

-m max-ttl: Specifies the maximum TTL allowed for an echo request. The value range is 0 to 63, and the default value is 63. This TTL cannot be smaller than the value of the first-ttl argument.

-priority priority: Specifies the 802.1p priority in the inner Ethernet header of the OAM echo request. The value range is 0 to 7, and the default value is 0. A higher value indicates a higher priority.

-q packet-number: Specifies the number of requests to send per hop. The value range is 1 to 10, and the default value is 3.

-v: Displays detailed information about the path that the TRILL packets traverse from the source RB to the destination RB. If you do not specify this keyword, the command displays brief information about the path.

-name: Displays the physical port name in the ReceivingPort and OutputPort fields when you display detailed information about the path that the TRILL OAM packets traverse from the RB to a destination RB. If you do not specify this keyword, both the ReceivingPort and OutputPort fields display only the circuit ID of a physical port.

nickname: Specifies a destination RB by its nickname in the range of 1 to ffbf in hexadecimal format.

Usage guidelines

After identifying network failure by using the ping trill command, use the tracert trill command to locate failed nodes.

The output from the tracert trill command includes the nicknames of all RBs that the packets traverse from source to destination. Asterisks (* * *) are displayed if no reply is received within the timeout period or a TRILL-enabled RB does not support the tracert trill command. The RB that does not support the tracert trill command cannot reply with a hop count error notification but can forward packets for tracert TRILL operation.

To abort the tracert TRILL operation during the execution of the command, press Ctrl+C.

Examples

# Display brief information about the path that the TRILL OAM packets traverse from the local RB 0xa456 to RB 0x2222.

<Sysname> tracert trill 2222

TRILL traceroute to 0x2222, 63 hops at most, press CTRL_C to break

TTL RBridge Time

------------------------------------------------------------------

0xa456

0 0xb123 4.969 ms 4.651 ms 5.245 ms

1 0x2222 4.067 ms 3.725 ms 3.708 ms

# Display detailed information about the path that the TRILL OAM packets traverse from the local RB 0xa456 to RB 0x2222.

<Sysname> tracert trill -v 2222

TRILL traceroute to 0x2222, 63 hops at most, press CTRL_C to break

TTL RBridge ReceivingPort OutputPort NextHop Time

------------------------------------------------------------------

0xa456 Ingress 0x0001 0xb123

0 0xb123 0x0001 0x0002 0x2222 4.093 ms 3.603 ms 3.657 ms

1 0x2222 0x0001 Egress 0x0000 3.558 ms 3.277 ms 3.115 ms

# Display detailed information about the path that the TRILL OAM packets traverse from the local RB 0xa456 to RB 0x2222.

<Sysname> tracert trill -v –name 2222

TRILL traceroute to 0x2222, 63 hops at most, press CTRL_C to break

RBridge: 0xa456

ReceivingPort: Ingress

OutputPort: 0x0001(XGE1/0/1)

NextHop: 0xb123

TTL 0

RBridge: 0xb123

ReceivingPort: 0x0001(XGE1/0/1)

OutputPort: 0x0002(XGE1/0/2)

NextHop: 0x2222

Time: 4.093 ms 3.603 ms 3.657 ms

TTL 1

RBridge: 0x2222

ReceivingPort: 0x0001(XGE1/0/1)

OutputPort: Egress

NextHop: 0x0000

Time: 3.558 ms 3.277 ms 3.115 ms

# Display brief information about the path that the TRILL OAM packets traverse from the local RB 0xa456 to itself.

<Sysname> tracert trill a456

TRILL traceroute to 0xa456, 63 hops at most, press CTRL_C to break

TTL RBridge Time

------------------------------------------------------------------

0xa456

0 0xa456 0.903 ms 0.857 ms 0.803 ms

# Display detailed information about the path that the TRILL OAM packets traverse from the local RB 0xa456 to itself.

<Sysname> tracert trill -v a456

TRILL traceroute to 0xa456, 63 hops at most, press CTRL_C to break

TTL RBridge ReceivingPort OutputPort NextHop Time

------------------------------------------------------------------

0xa456 Ingress InLoop 0x0000

0 0xa456 InLoop Egress 0x0000 0.953 ms 0.832 ms 0.857 ms

Table 17 Command output

Field	Description
TRILL traceroute to 0x2222	Display the path that the TRILL OAM packets traverse from the local RB to the egress RB 0x2222.
63 hops at most	Maximum number of hops allowed for an echo request, which can be set by using the -m max-ttl option.
press CTRL_C to break	During the execution of the command, press Ctrl+C to abort the tracert TRILL operation.
TTL	Number of hops.
RBridge	Nickname of the RB that sends the reply. If no reply is received within the timeout period, this field displays the asterisks (* * *).
ReceivingPort	Circuit ID of the receiving port for TRILL OAM packets. The port name is also displayed if you specify the -name keyword. · If the RB sends a TRILL OAM echo request, this field displays Ingress. · If the RB traces the packets destined for itself, the RB receives packets from the loopback interface and this field displays InLoop. · If the RB does not support displaying physical port names, the physical port name is displayed as N/A. To view the physical port for the displayed circuit ID when you do not specify the -name keyword, use the display trill interface verbose command on the device.
OutputPort	Circuit ID of the sending port of TRILL OAM packets. The port name is also displayed if you specify the -name keyword. · If the RB traces the packets destined for itself, the RB sends packets from the loopback interface and this field displays InLoop. · If the RB sends an echo reply, this field displays Egress. · If multiple equal-cost routes destined for the next hop exist, this field displays ECMP. · If the RB does not support displaying physical port names, the physical port name is displayed as N/A. To view the physical port for the displayed circuit ID when you do not specify the -name keyword, use the display trill interface verbose command on the device.
NextHop	Nickname of the next hop RB. · If the RB is the destination, this field displays 0x0000. · If multiple equal-cost routes destined for the next hop exist, this field displays ECMP.
Time	The round-trip time of each echo request, in milliseconds. The number of packets that can be sent per hop is set by using the -q packet-number option. The default value is 3.

‌

tree-root priority

Use tree-root priority to set the priority for the RB to be a TRILL distribution tree root.

Use undo tree-root priority to restore the default.

Syntax

tree-root priority priority

undo tree-root priority

Default

The priority for the RB to be a TRILL distribution tree root is 32768.

Views

TRILL view

Predefined user roles

network-admin

Parameters

priority: Specifies a priority value in the range of 1 to 65535. A higher priority value indicates a higher priority.

Examples

# Set the priority to 65535 for the RB to be a TRILL distribution tree root.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] tree-root priority 65535

trees calculate

Use trees calculate to set the number of TRILL distribution trees that an RB wants all RBs to compute.

Use undo trees calculate to restore the default.

Syntax

trees calculate count

undo trees calculate

Default

An RB wants all RBs to compute one TRILL distribution tree.

Views

TRILL view

Predefined user roles

network-admin

Parameters

count: Specifies the number of TRILL distribution trees that the RB wants all RBs to compute. The value range for this argument is 1 to 15.

Examples

# Set the number to 2 for TRILL distribution trees that the RB wants all RBs to compute.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] trees calculate 2

trill

Use trill to enable TRILL globally and enter TRILL view.

Use undo trill to disable TRILL globally.

Syntax

trill

undo trill

Default

TRILL is disabled globally.

Views

System view

Predefined user roles

network-admin

Examples

# Enable TRILL globally and enter TRILL view.

<Sysname> system-view

[Sysname] trill

[Sysname-trill]

trill announcing-vlan

Use trill announcing-vlan to configure announcing VLANs.

Use undo trill announcing-vlan to remove the specified announcing VLANs.

Syntax

trill announcing-vlan { vlan-list | null }

undo trill announcing-vlan { vlan-list | null }

Defaults

No announcing VLAN is configured. Announcing VLANs are enabled VLANs.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

vlan-list: Specifies a space-separated list of up to 10 VLAN items. Each VLAN item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

null: Configure the announcing VLAN list as empty.

Usage guidelines

RBs send Hello frames in a set of VLANs. The VLAN set is calculated as follows:

· DRB—Enabled VLANs ∩ (announcing VLANs ∪ designated VLAN).

· Non-DRB—Enabled VLANs ∩ (designated VLAN ∪ (announcing VLANs ∩ forwarding VLANs)).

To prevent Hello frames from consuming excessive CPU resources, reduce the number of announcing VLANs.

Configuration in Layer 2 Ethernet interface view takes effect only on the current port. Configuration in Layer 2 aggregate interface view takes effect on the current interface and its member ports. Configuration on the member port of an aggregate interface takes effect after the member port leaves the aggregation group.

Examples

# Set VLANs 10 through 20 to announcing VLANs.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill announcing-vlan 10 to 20

# Set the announcing VLAN list to empty.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill announcing-vlan null

Related commands

trill designated-vlan

trill bypass-pseudonode enable

Use trill bypass-pseudonode enable to enable the pseudonode bypass feature.

Use undo trill bypass-pseudonode enable to disable the pseudonode bypass feature.

Syntax

trill bypass-pseudonode enable

undo trill bypass-pseudonode enable

Default

The pseudonode bypass feature is disabled.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

This command disables a DRB from generating LSPs for the pseudonode when the DRB has only one neighbor on a broadcast network. This reduces the number of LSPs in the network.

Examples

# Enable the pseudonode bypass feature on Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill bypass-pseudonode enable

trill cost

Use trill cost to set the link cost for a TRILL port.

Use undo trill cost to restore the default.

Syntax

trill cost cost-value

undo trill cost

Defaults

The link cost for a TRILL port is 2000.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

cost-value: Specifies a link cost in the range of 1 to 16777214.

Usage guidelines

The link cost for a TRILL port can be automatically calculated by the system or manually set.

· A manually set link cost takes precedence over a calculated link cost.

· If no link cost is set and automatic link cost calculation is enabled, the calculated link cost takes effect.

· If no link cost is set and automatic link cost calculation is disabled, the default link cost of 2000 is used.

If you manually set the link cost for a TRILL port, make sure its peer TRILL port uses the same link cost.

Examples

# Set the link cost to 20000 for TRILL port Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill cost 20000

Related commands

auto-cost enable

trill designated-vlan

Use trill designated-vlan to configure a designated VLAN.

Use undo trill designated-vlan to restore the default.

Syntax

trill designated-vlan vlan-id

undo trill designated-vlan

Defaults

No designated VLAN is configured. The system automatically selects an enabled VLAN as the designated VLAN.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

vlan-id: Specifies a VLAN ID in the range of 1 to 4094.

Usage guidelines

RBs send Hello frames in a set of VLANs. The VLAN set is calculated as follows:

· DRB—Enabled VLANs ∩ (announcing VLANs ∪ designated VLAN).

· Non-DRB—Enabled VLANs ∩ (designated VLAN ∪ (announcing VLANs ∩ forwarding VLANs)).

RBs use the designated VLAN to forward TRILL protocol frames (except Hello frames) and local data frames. For RBs to establish adjacencies and forward TRILL data frames, make sure the designated VLAN is an enabled VLAN.

Examples

# Set VLAN 2 to the designated VLAN.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill designated-vlan 2

Related commands

trill announcing-vlan

trill drb-priority

Use trill drb-priority to set the DRB priority of a TRILL port.

Use undo trill drb-priority to restore the default.

Syntax

trill drb-priority priority

undo trill drb-priority

Default

The DRB priority of a TRILL port is 64.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

priority: Specifies a priority value in the range of 0 to 127. A higher priority value indicates a higher priority.

Usage guidelines

On a broadcast network, TRILL must elect a DRB. An RB with a higher DRB priority is preferred in DRB election. When two RBs have the same DRB priority, the RB with a higher MAC address takes precedence.

Examples

# Set the DRB priority to 2 for TRILL port Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill drb-priority 2

trill enable

Use trill enable to enable TRILL on a port.

Use undo trill enable to disable TRILL on a port.

Syntax

trill enable

undo trill enable

Default

TRILL is disabled on a port.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

Before you enable TRILL on a port, first enable TRILL globally.

Enable or disable TRILL on all ports in a VLAN, so that the ports in a VLAN have the same TRILL status (enabled or disabled).

Do not enable both TRILL and EVB on a port. The allowed VLANs of a TRILL-enabled port cannot overlap with those of an EVB-enabled port if the trill evb-support command is not configured on the EVB-enabled port. For more information about EVB, see EVB Configuration Guide.

Do not enable the spanning tree feature on a TRILL port. Because the spanning tree feature is enabled by default on all ports, the spanning tree feature takes effect on all ports when you enable the spanning tree feature globally. After the spanning tree feature is enabled globally, you must disable the spanning tree feature on TRILL ports. For more information about the spanning tree feature, see Layer 2—LAN Switching Configuration Guide.

Examples

# Enable TRILL globally, and enable TRILL on port Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] trill

[Sysname-trill] quit

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill enable

Related commands

trill

trill evb-support

Use trill evb-support to enable TRILL to forward traffic from EVB S-channels.

Use undo trill evb-support to restore the default.

Syntax

trill evb-support

undo trill evb-support

Default

TRILL does not support forwarding traffic from EVB S-channels.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

Configure this command on the interface that is directly connected to a server. TRILL will forward the packets received from the EVB S-channels on the interface to the TRILL network.

Before you execute this command, you must enable EVB on the interface.

This command and other TRILL commands (including trill enable) are mutually exclusive.

Examples

# Enable TRILL to forward traffic from EVB S-channels on Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] port link-type trunk

[Sysname-Ten-GigabitEthernet1/0/1] evb enable

[Sysname-Ten-GigabitEthernet1/0/1] trill evb-support

Related commands

evb enable (see EVB Command Reference)

trill enable

trill link-type

Use trill link-type to configure the link type of a TRILL port.

Use undo trill link-type to restore the default.

Syntax

trill link-type { access [ alone ] | hybrid | trunk }

undo trill link-type

Default

The link type of a TRILL port is access without the alone attribute.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

access [ alone ] : Configures the link type as access. When the alone keyword is not specified, the port is configured as an access port without the alone attribute. The port can process only local data frames and Hello frames. When the alone keyword is specified, the port is configured as an access port with the alone attribute. The port does not send or receive Hello frames and does not participate in DRB election or AVF negotiation.

hybrid: Configures the link type as hybrid. A hybrid port combines the attributes of an access port and a trunk port. It can process local data frames and passing data frames.

trunk: Configures the link type as trunk. A trunk port can process passing data frames and some Layer 2 protocol packets (for example, LLDP packets). It cannot process local data frames.

Usage guidelines

If a TRILL port is on a PEX, the link type of the TRILL port can only be access.

Examples

# Set the link type to trunk for TRILL port Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill link-type trunk

trill timer avf-inhibited

Use trill timer avf-inhibited to configure the AVF inhibition time.

Use undo trill timer avf-inhibited to restore the default.

Syntax

trill timer avf-inhibited time

undo trill timer avf-inhibited

Default

The AVF inhibition time is 30 seconds.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

time: Specifies the AVF inhibition time in the range of 0 to 30 seconds.

Usage guidelines

The AVF of a VLAN guarantees that frames of the VLAN enter and leave a broadcast network through the same port. Other RBs on the broadcast network do not process frames from the VLAN.

To avoid loops, the RB that acts as the AVF suppresses its AVF role during the inhibition time when one of the following conditions exists:

· The RB detects a root bridge change on the broadcast network.

· Other RBs advertise a different AVF for the VLAN.

When the inhibition time expires, the RB restores its AVF role if it is still the AVF of the VLAN. Configuration in Layer 2 Ethernet interface view takes effect only on the current port. Configuration in Layer 2 aggregate interface view takes effect on the current interface and its member ports. Configuration on the member port of an aggregate interface takes effect after the member port leaves the aggregation group.

Examples

# Set the AVF inhibition time to 20 seconds on port Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill timer avf-inhibited 20

trill timer csnp

Use trill timer csnp to configure the CSNP interval.

Use undo trill timer csnp to restore the default.

Syntax

trill timer csnp interval

undo trill timer csnp

Default

The CSNP interval is 10 seconds.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

interval: Specifies an interval in the range of 1 to 600 seconds.

Usage guidelines

On a broadcast network, the RB advertises CSNPs at the CSNP interval to perform network-wide LSDB synchronization if it is elected as the DRB. A CSNP records all LSP digests of the RB's local LSDB. A remote RB compares a received CSNP against its local LSDB to examine whether some LSPs age out or are missing. If the CSNP has an LSP digest that the local LSDB does not have, the remote RB sends a PSNP packet to request the LSP information.

Examples

# Set the CSNP interval to 15 seconds on Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill timer csnp 15

trill timer hello

Use trill timer hello to configure the Hello interval.

Use undo trill timer hello to restore the default.

Syntax

trill timer hello interval

undo trill timer hello

Default

The Hello interval is 10 seconds.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

interval: Specifies an interval in the range of 1 to 255 seconds.

Usage guidelines

The RB advertises Hello frames at the Hello interval to maintain a TRILL adjacency. The shorter the Hello interval, the faster the network convergence. However, a shorter Hello interval consumes more system resources.

This command sets the Hello interval for an RB. The Hello interval of a DRB is 1/3 of the Hello interval of an RB. This allows for DRB failures to be quickly detected.

The adjacency holding time is obtained by multiplying the Hello interval by the Hello multiplier. The RB advertises the adjacency holding time to neighbors through Hello frames. If a neighbor does not receive any Hello frames from the RB within the adjacency holding time, it removes the TRILL adjacency with the RB.

The adjacency holding time cannot exceed 65535 seconds.

Examples

# Set the Hello interval to 20 seconds on Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill timer hello 20

Related commands

trill timer holding-multiplier

Use trill timer holding-multiplier to configure the Hello multiplier.

Use undo trill timer holding-multiplier to restore the default.

Syntax

trill timer holding-multiplier count

undo trill holding-multiplier

Default

The Hello multiplier is 3.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

Usage guidelines

The adjacency holding time cannot exceed 65535 seconds.

Examples

# Set the Hello multiplier to 6 on Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill timer holding-multiplier 6

Related commands

trill timer hello

trill timer lsp

Use trill timer lsp to configure the minimum LSP interval and the maximum number of LSPs transmitted per interval.

Use undo trill timer lsp to restore the default.

Syntax

trill timer lsp interval [ count count ]

undo trill timer lsp

Default

The minimum LSP interval is 10 milliseconds, and the maximum number of LSPs transmitted per interval is 5.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

interval: Specifies the minimum LSP interval in the range of 10 to 1000 milliseconds. The interval argument is in increments of 10 milliseconds.

count: Specifies the maximum number of LSPs transmitted per interval, in the range of 1 to 1000.

Usage guidelines

To avoid frequent LSP aging in the network, RBs periodically advertise LSPs.

Examples

# Set the minimum LSP interval to 500 milliseconds and the maximum number of LSPs transmitted per interval to 10 on Ten-GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill timer lsp 500 count 10

trill track

Use trill track to associate a track entry with a TRILL port.

Use undo trill track to remove the association between a track entry and a TRILL port.

Syntax

trill track track-entry-number

undo trill track

Default

A TRILL port is not associated with any track entry.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

track-entry-number: Specifies a track entry by its number in the range of 1 to 1024.

Examples

# Associate Ten-GigabitEthernet 1/0/1 with track entry 10.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] trill track 10

14-TRILL Command Reference

TRILL commands

display trill topology

timer lsp-generation

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