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| Title | Size | Download |
|---|---|---|
| 01-Basic MPLS commands | 260.00 KB |
Basic MPLS commands
display mpls forwarding ilm
Use display mpls forwarding ilm to display Incoming Label Map (ILM) entries.
display mpls forwarding ilm [ label ] [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
label: Displays the ILM entry with the specified incoming label. The value range for this argument is 16 to 250000. If you do not specify an incoming label, this command displays ILM entry information for all incoming labels.
slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays ILM entries for the master device.
Usage guidelines
An ILM entry records the label operation type, outgoing label, and other forwarding information.
After an LSR receives a labeled packet, it performs the following operations:
1. Identifies the ILM entry that matches the top label of the packet.
2. Performs the specified label operation.
3. Forwards the packet.
Examples
# Display all ILM entries.
<Sysname> display mpls forwarding ilm
Total ILM entries: 3
Flags: T - Forwarded through a tunnel
N - Forwarded through the outgoing interface to the nexthop IP address
B - Backup forwarding information
A - Active forwarding information
M – P2MP forwarding information
InLabel Oper VRF Flag SwapInfo Forwarding Info
--------------------------------------------------------------------------------
30 SWAP 0 T 1000 1024
1279 POP 0 - - -
1407 SWAP 0 NA 1271 Vlan10 50.2.0.2
NB 1270 Tun0 0.0.0.0
Table 1 Command output
|
Field |
Description |
|
Total ILM entries |
Total number of ILM entries. |
|
InLabel |
Incoming label. |
|
Oper |
Operation type: · POP—Pops the label. · POPGO—Pops the label and forwards the packet to another tunnel. · SWAP—Swaps the label. |
|
VRF |
Index of a VPN instance. |
|
Flag |
Forwarding flag: · T—Forwarded through a tunnel. · N—Forwarded through the outgoing interface to the next hop IP address. · B—Backup forwarding information. · A—Active forwarding information. · M—P2MP forwarding information. |
|
SwapInfo |
Outgoing label value. |
|
Forwarding Info |
Forwarding information: · When the forwarding flag is N, the forwarding information records the outgoing interface and the next hop. · When the forwarding flag is T, the forwarding information records the NID. |
display mpls forwarding nhlfe
Use display mpls forwarding nhlfe to display Next Hop Label Forwarding Entry (NHLFE) entries.
Syntax
display mpls forwarding nhlfe [ nid [ relation ] | tunnel-type { crlsp | gre | local | lsp | srlsp | srpgroup | srpolicy | srpsids | te } ] [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
nid: Displays the NHLFE entry with the specified NID. The NID value range is 0 to 4294967294. If you do not specify an NID, this command displays NHLFE entry information for all NIDs.
relation: Displays information about entries associated with the specified NHLFE entry.
tunnel-type: Display NHLFE entry information for the specified type of tunnels. If you do not specify this keyword, the command displays NHLFE entry information for all types of tunnels.
crlsp: Specifies static and RSVP CRLSPs.
gre: Specifies GRE tunnels.
local: Specifies LSPs of directly connected next hops.
lsp: Specifies static, LDP, and BGP LSPs.
srlsp: Specifies static, BGP, IS-IS, and OSPF SRLSPs.
srpgroup: Specifies tunnels of SR-MPLS TE policy groups.
srpolicy: Specifies SR-MPLS TE policy tunnels.
srpsids: Specifies tunnels of SR-MPLS TE policy SIDs.
te: Specifies tunnels of MPLS TE tunnel interfaces.
slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays NHLFE entries for the master device.
Usage guidelines
An NHLFE entry records label forwarding information, such as the outgoing label and outgoing interface. NHLFE entries are mainly used to add multiple labels to packets.
To add multiple labels to a packet, an LSR performs the following operations:
1. Obtains the bottom label and NID in the matching FIB or ILM entry.
2. Obtains the outer label in the NHLFE entry identified by the NID.
Examples
# Display the NHLFE entry with NID 2048.
<Sysname> display mpls forwarding nhlfe 2048
Flags: T - Forwarded through a tunnel
N - Forwarded through the outgoing interface to the nexthop IP address
B - Backup forwarding information
A - Active forwarding information
M – P2MP forwarding information
S – Secondary backup path
NID Tnl-Type Flag OutLabel Forwarding Info
Attri-Val
--------------------------------------------------------------------------------
2048 LSP NA 2025 Vlan10 10.11.112.26
# Display all NHLFE entries.
<Sysname> display mpls forwarding nhlfe
Total NHLFE entries: 6
Flags: T - Forwarded through a tunnel
N - Forwarded through the outgoing interface to the nexthop IP address
B - Backup forwarding information
A - Active forwarding information
M – P2MP forwarding information
S – Secondary backup path
NID Tnl-Type Flag OutLabel Forwarding Info
Attri-Val
--------------------------------------------------------------------------------
10 - TA - 2049
20 - TA - 2050
2048 LSP NA 2025 Vlan10 10.11.112.26
2049 LSP NA 3024 Vlan20 10.11.112.26
TB 3026 20
2050 LSP NA 3025 Vlan30 10.11.113.26
268435456 TE TA - 256
Tunnel0
Table 2 Command output
|
Field |
Description |
|
Total NHLFE entries |
Total number of NHLFE entries. |
|
NID |
NHLFE entry index. |
|
Tnl-Type |
Tunnel type: · LOCAL—Direct LSP tunnel. · LSP—Static LSP tunnel, or LSP tunnel signaled using LDP or BGP. · TE—TE tunnel. · GRE—GRE tunnel. · CRLSP—Static CRLSP tunnel or CRLSP tunnel signaled using RSVP. · SRLSP—Static SRLSP tunnel or SRLSP tunnel signaled using IS-IS or OSPF. · SRPolicy—SR-MPLS TE policy tunnel. · SRPSIDs—Tunnel corresponding to SR-MPLS TE policy SIDs. · SRPGroup—Tunnel corresponding to SR-MPLS TE policy group. This field displays a hyphen (-) if the tunnel type is invalid. |
|
Flag |
Forwarding flag: · T—Forwarded through a tunnel. · N—Forwarded through the outgoing interface to the next hop IP address. · B—Backup forwarding information. · A—Active forwarding information. · M—P2MP forwarding information. · S—The second backup tunnel. |
|
OutLabel |
Outgoing label. |
|
Forwarding Info |
Forwarding information: · When the forwarding flag is N, the forwarding information records the outgoing interface and the next hop. · When the forwarding flag is T, the forwarding information records the NID. |
|
Attri-Val |
Forwarding attribute. This field displays tunnel interface name and is displayed only when the value for the Tnl-Type field is TE or GRE. |
display mpls interface
Use display mpls interface to display MPLS interface information, including the interface name, interface status, and interface MPLS MTU.
Syntax
display mpls interface [ interface-type interface-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
interface-type interface-number: Specifies an interface by the interface type and number.
Examples
# Display all MPLS interfaces.
<Sysname> display mpls interface
Interface Status MPLS MTU
Vlan10 Up 1500
Vlan20 Up 1500
Table 3 Command output
|
Field |
Description |
|
Interface |
Interface name. |
|
Status |
Interface state. |
|
MPLS MTU |
MPLS MTU (in bytes) of the interface. This field displays a hyphen (-) if the interface is not configured with an MPLS MTU. |
Related commands
mpls enable
mpls mtu
display mpls label
Use display mpls label to display MPLS label information.
Syntax
display mpls label { label-value1 [ to label-value2 ] | all } [ state { alloc | idle | inuse | pending } ] [ verbose ] [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
label-value1: Specifies a label value in the range of 16 to 250000. If used with the label-value2 argument, the label-value1 argument represents the start label of a label range.
to label-value2: Specifies the end label of the label range, in the range of 16 to 250000. If you specify a label range by using the label-value1 argument and the to label-value2 option, this command displays usage information for the specified range of labels.
all: Specifies all labels.
state: Displays information about MPLS labels in the specified state. If you do not specify this keyword, the command displays information about MPLS labels in all states.
alloc: Displays MPLS labels that are being requested.
idle: Displays idle MPLS labels.
inuse: Displays MPLS labels in use.
pending: Displays MPLS labels that have been released but are still in use.
verbose: Displays detailed MPLS label information. If you do not specify this keyword, this command displays brief MPLS label information.
slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays MPLS label information on the master device.
Examples
# Display brief information for labels 1025 through 1027.
<Sysname> display mpls label 1025 to 1027
Label Owner State
1025 LDP Alloc
1026 LDP Alloc
1027 LDP Inuse
# Display brief information about labels that are being requested and in the range of 1025 to 1027.
<Sysname> display mpls label 1025 to 1027 state alloc
Label Owner State
1025 LDP Alloc
1026 LDP Alloc
# Display detailed information for labels 1025 through 1027.
<Sysname> display mpls label 1025 to 1027 verbose
Label: 1025
State: Idle
Owner: -
FEC : -
Version: 0
Label: 1026
State: Idle
Owner: -
FEC : -
Version: 0
Label: 1027
State: Idle
Owner: -
FEC : -
Version: 0
Table 4 Command output
|
Field |
Description |
|
Label |
Label value. |
|
Owner |
Protocol that is using the label: · Static—Static LSP. · LDP. · BGP. · StaticCR—Static CRLSP or static SRLSP. · RSVP. · L2VPN. · ISIS. · OSPF. · VSRP. · NAT. This field displays a hyphen (-) when the label state is Idle. |
|
State |
Usage state of the label: · Idle—The label is idle. · Alloc—The label has been allocated. · Pending—The label has been released but is still used by an LSP entry. · Inuse—The label has been allocated and used by an LSP entry. |
|
FEC |
Forwarding equivalence class, which can be one of the following forms: · IP address/mask—Classifies FECs by destination address. · IP address/mask/LSINDEX—Classifies FECs by label stack index. · IP address/In Label—The LSP is created through BGP Peer-Set-SID. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE or static SRLSP FEC. · IP address/Color—Classifies FECs by the IP address and color value of the destination node of the SR-MPLS TE policy. If this field displays a hyphen (-), it indicates that the LSP is a static transit LSP, adjacency path for static SRLSP, static egress LSP, static transit CRLSP, static egress CRLSP, or adjacency path for aggregate interface member ports. If this field displays Backup, it indicates that the LSP is a backup LSP of the previous LSP. |
|
Version |
Label version. |
display mpls lsp
Use display mpls lsp to display LSP information.
Syntax
display mpls lsp [ egress | in-label label-value | ingress | outgoing-interface interface-type interface-number | protocol { bgp | isis | ldp | local | ospf | rsvp-te [ p2mp ] | sr-policy | sr-te | static | static-cr } | transit ] [ vpn-instance vpn-instance-name ] [ ipv4-address mask-length | ipv6 [ ipv6-address prefix-length ] ] [ verbose ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
egress: Displays the LSPs taking the current LSR as egress.
in-label label-value: Displays the LSPs using the specified label as the incoming label. The value range for the label-value argument is 0 to 250000.
ingress: Displays the LSPs taking the current LSR as ingress.
outgoing-interface interface-type interface-number: Displays the LSPs using the specified interface as the outgoing interface. The interface-type interface-number argument specifies an interface by its type and number.
protocol: Displays the LSPs established by a protocol.
bgp: Displays BGP LSPs.
isis: Displays IS-IS SRLSPs.
ldp: Displays LDP LSPs.
local: Displays LSPs destined for the direct next hops, or displays LSPs that use the local MPLS TE tunnel interfaces or tunnel bundle interfaces as the LSP heads.
ospf: Displays OSPF SRLSPs.
rsvp-te: Displays CRLSPs established by RSVP-TE.
p2mp: Displays P2MP CRLSPs established by RSVP-TE. If you do not specify this keyword, the command displays information about P2P CRLSPs and P2MP CRLSPs established by RSVP-TE.
sr-policy: Displays SRLSPs established by SR-MPLS TE policies.
sr-te: Displays SRLSPs established by SR-TE.
static: Displays static LSPs.
static-cr: Displays static CRLSPs and static SRLSPs.
transit: Displays the LSPs taking the current LSR as a transit LSR.
vpn-instance vpn-instance-name: Displays LSPs for the specified MPLS L3VPN instance. The vpn-instance-name is a case-sensitive string of 1 to 31 characters. If you do not specify this option, the command displays LSPs for the public network.
ipv4-address mask-length: Displays the IPv4 LSP for an FEC specified by an IPv4 address and a mask length. The value range for the mask length is 0 to 32.
ipv6: Displays IPv6 LSP information. If you do not specify this keyword, the command displays IPv4 LSP information.
ipv6-address prefix-length: Displays the IPv6 LSP for an FEC specified by an IPv6 address and a prefix length. The value range for the prefix length is 0 to 128.
verbose: Displays detailed LSP information. If you do not specify this keyword, the command displays brief LSP information.
Usage guidelines
If you do not specify any parameters, this command displays brief information about all LSPs. If you specify only the verbose keyword, this command displays detailed information about all LSPs.
Examples
# Display brief information about all IPv4 LSPs.
<Sysname> display mpls lsp
FEC Proto In/Out Label Out Inter/NHLFE/LSINDEX
100.100.100.100/24 LDP -/1049 Vlan20
Backup -/1050 Vlan21
100.100.100.10/24 LDP -/1051 Vlan22
Backup -/1050 Vlan21
100.100.100.10/24 LDP -/1049 Vlan30
101.100.100.10/24 LDP 1026/1049 Vlan20
102.100.100.10/24 LDP 1027/- -
103.100.100.10/24 LDP 1028/1049 Tunnel10
110.100.100.20/24 BGP -/1049 Vlan20
111.100.100.10/24 BGP 2028/1049 Vlan20
112.100.100.10/24 BGP 2029/- Vlan20
113.100.100.10/24 BGP 2030/1049 NHLFE1500
114.100.100.10/24 BGP 2031/1050 Tunnel100
100.100.100.100 Local -/- Vlan20
101.101.101.101/32 Static -/100 Vlan20
- Static 100/200 Vlan20
- Static 101/- Vlan20
200.200.200.200/64000/64000 RSVP -/1030 Vlan10
201.200.200.200/64000/64000 RSVP 1024/1031 Vlan10
202.200.200.200/64000/64000 RSVP 1025/- -
150.140.150.100/64001/0 StaticCR -/1000 Vlan10
- StaticCR 50/1001 Vlan10
- StaticCR 51/- -
Table 5 Command output
|
Field |
Description |
|
FEC |
Forwarding equivalence class: · IP address/mask—Classifies FECs by destination address. · IP address/mask/LSINDEX—Classifies FECs by label stack index. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · IP address/Color—Classifies FECs by destination address and color attribute. · NID—Classifies FECs by NID. · GroupID—Classifies FECs by SR-MPLS TE policy group ID. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE FEC or static SRLSP FEC. · (Not supported.) IP address/mask (Flex-Algo ID)—Classifies FECs by destination address and flexible algorithm ID. · IP address/private data/VPN instance index—Classifies FECs by IP address, private data, and VPN instance index. This field displays a hyphen (-) if the LSP is a static transit LSP, static egress LSP, static transit CRLSP, static egress CRLSP, or an adjacency path for static SRLSPs. This field displays Backup if the LSP is a backup LSP of the primary LSP. This field displays SecondBackup if the LSP is the second backup LSP of the primary LSP. |
|
Proto |
Label distribution protocol: · LDP. · BGP. · IS-IS. · RSVP. · Static. · StaticCR—Static CRLSP or static SRLSP. · Local—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · OSPF. · RSVP-P2MP—P2MP CRLSP established by RSVP-TE. · SR-TE—SRLSP established by SR-TE. · SRPolicy—SRLSP established by SR-MPLS TE policies. |
|
In/Out Label |
Incoming label/outgoing label. |
|
Out Inter/NHLFE/LSINDEX |
Outgoing interface name, NHLFE entry index, or label stack index of the LSP. NHLFEnumber specifies the ingress LSP selected for the current LSP after route recursion. The ingress LSP is the one that matches the NHLFE entry with an NID of number. LSINDEXnumber specifies the ingress LSP selected for the current LSP after route recursion. The ingress LSP is the one that matches the LSINDEX entry with a label stack index of number. |
# Display IPv6 LSP information.
<Sysname> display mpls lsp ipv6
FEC : 100:100:100:100:100:100:100:100/128
Protocol : BGP In-Label : 1200
Out-Label: 1300 Out-Interface: Vlan10
BkLabel : 1400 BkInterface : Vlan20
Table 6 Command output
|
Field |
Description |
|
FEC |
Forwarding equivalence class: · IP address/mask—Classifies FECs by destination address. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE FEC or static SRLSP FEC. This field displays a hyphen (-) if the LSP is a static transit LSP, static egress LSP, static transit CRLSP, or static egress CRLSP. |
|
Protocol |
Label distribution protocol: · LDP. · BGP. · RSVP. · Static. · StaticCR—Static CRLSP or static SRLSP. · Local—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · RSVP-P2MP—P2MP CRLSP established by RSVP-TE. · SR-TE—SRLSP established by SR-TE. |
|
BkLabel |
Outgoing label of the backup LSP. |
|
BkInterface |
Outgoing interface of the backup LSP. |
# Display detailed information about all LSPs.
<Sysname> display mpls lsp verbose
Destination : 56.10.10.2
FEC : 56.10.10.2/32
Protocol : LDP
LSR Type : Egress
Service : Statistics
Create Time : 2021-07-05 11:44:06
Last Chg Time: 2021-07-05 11:44:06
In-Label : 1024
State : Active
Inbound Statistics:
Octets : 13000
Packets : 100
Errors : 0
Discards : 0
Destination : 56.10.10.4
FEC : 56.10.10.2/32
Protocol : LDP
LSR Type : Transit
Service : Statistics
Create Time : 2021-07-05 11:44:06
Last Chg Time: 2021-07-05 11:44:06
In-Label : 1026
Inbound Statistics:
Octets : 10600
Packets : 100
Errors : 0
Discards : 0
Path ID : 0x40000000.1
State : Active
Out-Label : 1800
Nexthop : 10.1.1.2
Out-Interface: Vlan10
BkLabel : 1900
BkNexthop : 20.1.1.2
BkInterface : Vlan20
Outbound Statistics:
Octets : 12600
Packets : 100
Errors : 0
Discards : 0
Destination : 56.10.10.4
FEC : 56.10.10.2/32
Protocol : LDP
LSR Type : Ingress
Service : -
Create Time : 2021-07-05 11:44:06
Last Chg Time: 2021-07-05 11:44:06
NHLFE ID : 2000
State : Active
Out-Label : 1800
Nexthop : 10.1.1.2
Out-Interface: Vlan10
Table 7 Command output
|
Field |
Description |
|
Destination |
LSP destination address. |
|
FEC |
Forwarding equivalence class: · IP address/mask—Classifies FECs by destination address. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · IP address/Color—Classifies FECs by destination address and color attribute. · NID—Classifies FECs by NID. · GroupID—Classifies FECs by SR-MPLS TE policy group ID. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE FEC. · (Not supported.) IP address/mask (Flex-Algo ID)—Classifies FECs by destination address and flexible algorithm ID. · IP address/private data/VPN instance index—Classifies FECs by IP address, private data, and VPN instance index. This field displays a hyphen (-) if the LSP is a static transit LSP, static egress LSP, static transit CRLSP, static egress CRLSP, or adjacency path for static SRLSPs. |
|
Protocol |
Label distribution protocol: · LDP. · BGP (instance-name)—The instance-name specifies a BGP instance name. The value of default represents the default BGP instance. · IS-IS. · RSVP. · Static. · StaticCR—Static CRLSP or static SRLSP. · Local—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · OSPF. · RSVP-P2MP—P2MP CRLSP established by RSVP-TE. · SR-TE. · SRPolicy—SRLSP established by SR-MPLS TE policies. |
|
LSR Type |
LSR type: · Ingress—The current LSR is the ingress node of the LSP. · Transit—The current LSR is a transit node of the LSP. · Egress—The current LSR is the egress node of the LSP. |
|
Service |
Service deployed on the LSP. The service can only be Statistics, which indicates the MPLS forwarding statistics feature. |
|
Create Time |
Time when the LSP generated. |
|
Last Chg Time |
Time when the LSP changed most recently. |
|
Path ID |
Forwarding path. The value is in the format of 0xnn.m. The nn represents the NHLFE group ID of the outer LSPs that carry the current LSP, and m represents the sequence number of the equivalence path. |
|
NHLFE ID |
NHLFE entry index. |
|
State |
LSP state: · Active—The LSP is in use. · Inactive—The LSP is idle. |
|
Inbound Statistics |
MPLS forwarding statistics in inbound direction: · Octets—Number of received octets. · Packets—Number of received packets. · Errors—Number of received error packets. · Discards—Number of discarded packets. |
|
BkLabel |
Outgoing label of the backup LSP. |
|
BkNexthop |
Next hop address of the backup LSP. |
|
BkInterface |
Outgoing interface of the backup LSP. |
|
SBKOut interface |
Outgoing interface of the second backup LSP. |
|
BkLsIndex |
Label stack index of the backup LSP. |
|
Outbound Statistics |
MPLS forwarding statistics in outbound direction: · Octets—Number of sent octets. · Packets—Number of sent packets. · Errors—Number of error packets. · Discards—Number of discarded packets. |
Related commands
display mpls lsp statistics
display mpls lsp statistics
Use display mpls lsp statistics to display LSP statistics.
Syntax
display mpls lsp statistics [ ipv6 ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
ipv6: Displays IPv6 LSP statistics. If you do not specify this keyword, the command displays IPv4 LSP statistics.
Examples
# Display IPv4 LSP statistics.
<Sysname> display mpls lsp statistics
LSP Type Ingress/Transit/Egress Active
Static LSP 0/0/0 0/0/0
Static CRLSP 0/0/0 0/0/0
LDP LSP 2/2/1 2/2/1
RSVP CRLSP 0/0/0 0/0/0
BGP LSP 0/0/0 0/0/0
Local LSP 2/0/0 2/0/0
ISIS LSP 0/0/0 0/0/0
OSPF LSP 0/0/0 0/0/0
SR LSP 0/0/0 0/0/0
SR Policy LSP 0/0/0 0/0/0
-----------------------------------------------------
Total 4/2/1 4/2/1
# Display IPv6 LSP statistics.
<Sysname> display mpls lsp statistics ipv6
LSP Type Ingress/Transit/Egress Active
Static LSP 0/0/0 0/0/0
Static CRLSP 0/0/0 0/0/0
LDP LSP 6/6/2 6/6/2
RSVP CRLSP 0/0/0 0/0/0
BGP LSP 0/0/0 0/0/0
Local LSP 2/0/0 2/0/0
ISIS LSP 0/0/0 0/0/0
OSPF LSP 0/0/0 0/0/0
SR LSP 0/0/0 0/0/0
SR Policy LSP 0/0/0 0/0/0
-----------------------------------------------------
Total 8/6/2 8/6/2
Table 8 Command output
|
Field |
Description |
|
LSP Type |
LSP types: · Static LSP. · Static CRLSP—Static CRLSP or static SRLSP. · LDP LSP. · Local LSP—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · RSVP CRLSP. · BGP LSP. · IS-IS. · OSPF. · SR LSP—Dynamic SRLSPs established by SR and stateful PCE. · SR Policy LSP—SRLSP established by SR-MPLS TE policies. |
|
Total |
Total number of LSPs. |
|
Ingress |
Number of LSPs that take the local device as the ingress node. |
|
Transit |
Number of LSPs that take the local device as a transit node. |
|
Egress |
Number of LSPs that take the local device as the egress node. |
|
Active |
Number of active LSPs of a type. |
display mpls nib
Use display mpls nib to display MPLS Nexthop Information Base (NIB) information.
Syntax
display mpls nib [ nib-id ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
nib-id: Specifies a next hop ID in the range of 1 to FFFFFFFFFFFFFFFE. If you do not specify a next hop, this command displays information about all MPLS next hops.
Examples
# Display information about all MPLS next hops.
<Sysname> display mpls nib
NIB ID: 0x40000000
Users: 1
Status: Active
ECMP number: 1
Outgoing NHLFE ID: 1024
Backup outgoing NHLFE ID: 1027
Table 9 Command output
|
Field |
Description |
|
NIB ID |
ID of the next hop. |
|
Users |
Number of ILM entries that use this next hop. |
|
Status |
Next hop status: · Active—The next hop is active. · Dummy—The next hop is inactive. |
|
ECMP number |
Number of equal-cost NHLFE entries. |
|
Outgoing NHLFE ID |
ID of the NHLFE entry to which the next hop corresponds. |
|
Backup outgoing NHLFE ID |
ID of the backup NHLFE entry. |
display mpls nid
Use display mpls nid to display usage information for NIDs.
Syntax
display mpls nid [ nid-value1 [ to nid-value2 ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
nid-value1: Specifies an NID in the range of 0 to 65535. If used with the nid-value2 argument, the nid-value1 argument represents the start NID of an NID range.
to nid-value2: Specifies the end NID of the NID range. The value range for the end NID is 0 to 65535. If you specify an NID range by using the nid-value1 argument and the to nid-value2 option, this command displays usage information for the specified range of NIDs.
Usage guidelines
NIDs are 32-bit binary numbers. They include fixed NIDs and dynamic NIDs.
· Fixed NIDs—Generated for tunnel interfaces or tunnel bundle interfaces. The highest four bits are a value other than 0000.
· Dynamic NIDs—NIDs except fixed NIDs. The highest four bits are 0s.
This command displays usage information only for dynamic NIDs.
If you do not specify any parameters, this command displays usage information for all dynamic NIDs.
Examples
# Display usage information for dynamic NIDs 1028 through 1500.
<Sysname> display mpls nid 1028 to 1500
NID alloc state: '.' means not used, '$' means used
1028 :...$.... ........ ........ ........ ........ ........ ........ ........
1092 :........ ........ ........ ........ ........ ........ ........ ........
1156 :........ ........ ........ ........ ........ ........ ........ ........
1220 :........ ........ ........ ........ ........ ........ ........ ........
1284 :........ ........ ........ ........ ........ ........ ........ ........
1348 :........ ........ ........ ........ ........ ........ ........ ........
1412 :........ ........ ........ ........ ........ ........ ........ ........
1476 :........ ........ ........ .
display mpls summary
Use display mpls summary to display MPLS summary information.
Syntax
display mpls summary
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display MPLS summary information.
<Sysname> display mpls summary
MPLS LSR ID : 1.1.1.1
Egress Label Type: Implicit-null
Labels:
Range Idle Owner
16-14999 14984 Static
StaticCR
StaticPW
Static SR Adj
15000-15999(default SRLB) 1000 Default SR Adj
16000-55999(default SRGB, reusable) 40000 Default SR Prefix
25000-27000(SRGB) 2001 ISIS-1 SR Prefix
56000-88888 32889 LDP
RSVP
BGP
BGP SR EPE
OSPF SR Adj
ISIS SR Adj
VPWS
VPLS
100000-200000(global SRGB, reusable) 100001 SR Prefix
210000-220000(global SRLB) 10001 SR Adj
Protocols:
Type State
LDP Normal
RSVP Normal
BGP(default) Normal
Static Normal
CCC Normal
StaticCR Normal
Local Normal
BGP(xy) Normal
BGP(abc) Normal
mLDP Normal
Table 10 Command output
|
Field |
Description |
|
Egress Label Type |
Label type that the egress node assigns to the penultimate hop: · Implicit-null. · Explicit-null. · Non-null. |
|
Labels |
Label information. |
|
Range |
Label range. · If labels within the label range can be reused, this field displays (reusable) behind the label range. · If the default label range is used, this field displays (default) behind the label range. · If the configured global label range is used, this field displays (global) behind the label range. · If the label range is the SRGB range, this field displays (SRGB) behind the label range. · If the label range is the SRLB range, this field displays (SRLB) behind the label range. |
|
Idle |
Number of idle labels in the label range. |
|
Owner |
Label range owner. · LDP. · BGP. · RSVP. · Static—Static LSP. · StaticCR—Static CRLSP. · StaticPW—Static PW. · Static SR Adj—Static SR adjacency SID. · Default SR Adj—Default SR adjacency SID. · SR Adj—Configured global SR adjacency SID. · Default SR Prefix—Default SR prefix SID. · SR Prefix—Configured global SR prefix SID. · OSPF SR Adj—SR adjacency SID automatically allocated to OSPF. · ISIS SR Adj—SR adjacency SID automatically allocated to IS-IS. · ISIS-1 SR Prefix—SR prefix SID of IS-IS process 1. · OSPF-1 SR Prefix—SR prefix SID of OSPF process 1. · VPWS. · VPLS. · BGP SR EPE—BGP PeerNode SID, PeerAdj SID, or PeerSet SID. · VRF—Label range specified for all VPN instances. |
|
Protocols |
Label distribution protocols that generated LSPs and their running states. |
|
Type |
Protocol type: · LDP. · mLDP. · BGP (instance-name). The instance-name specifies a BGP instance name. The value of default represents the default BGP instance. · RSVP. · Static—Static LSP. · StaticCR—Static CRLSP. · TE. · CCC. · ISIS. · OSPF. · SRPolicy. |
|
State |
Label distribution protocol running state: · Normal—The protocol is in normal state. · Recover—The protocol is in the GR process. |
mpls label advertise
Use mpls label advertise to specify the type of label the egress node will advertise to the penultimate hop.
Use undo mpls label advertise to restore the default.
Syntax
mpls label advertise { explicit-null | implicit-null | non-null }
undo mpls label advertise
Default
As egress, the device advertises an implicit null label to the penultimate hop.
Views
System view
Predefined user roles
network-admin
Parameters
explicit-null: Specifies the egress node to advertise an explicit null label of 0 or 2 to the penultimate hop. The explicit null label value is 0 in IPv4 networks and 2 in IPv6 networks.
implicit-null: Specifies the egress node to advertise an implicit null label of 3 to the penultimate hop.
non-null: Specifies the egress node to advertise a non-null label to the penultimate hop.
Usage guidelines
As a best practice, configure the egress node to advertise an implicit null label to the penultimate hop if the penultimate hop supports PHP.
If you want to simplify packet forwarding on egress but keep labels to determine QoS policies, configure the egress node to advertise an explicit null label to the penultimate hop.
Use non-null labels only in particular scenarios. For example, when OAM is configured on the egress node, the egress node can get the OAM function entity status only through non-null labels.
As a penultimate hop, the device accepts the implicit null label, explicit null label, or non-null label advertised by the egress node.
For LDP LSPs, the mpls label advertise command triggers LDP to delete the LSPs established before the command is executed and re-establishes new LSPs.
For BGP LSPs, the mpls label advertise command takes effect only on the BGP LSPs established after the command is executed. To apply the new setting to BGP LSPs established before the command is executed, delete the routes corresponding to the BGP LSPs, and then redistribute the routes.
Examples
# Configure the egress node to advertise an implicit null label to the penultimate hop.
<Sysname> system-view
[Sysname] mpls label advertise implicit-null
Related commands
reset mpls ldp
mpls label range
Use mpls label range to set the value range for dynamic labels that the device can allocate.
Use undo mpls label range to restore the default.
Syntax
mpls label range minimum maximum
undo mpls label range
Default
No value range is set for dynamic labels that the device can allocate.
Views
System view
Predefined user roles
network-admin
Parameters
minimum: Specifies the minimum label value that the device can allocate. The value range for this argument is 15000 to 249999.
maximum: Specifies the maximum label value that the device can allocate. The value range for this argument is 15001 to 250000.
Usage guidelines
This command sets the value range in which label distribution protocols can dynamically allocate labels.
This command does not take effect on static LSP labels, static CRLSP labels, static SRLSP labels, static PW labels, or SRGBs. For more information about static LSP labels, see "Configuring a static LSP." For more information about static CRLSP labels, see "Configuring a static CRLSP." For more information about static PW labels, see "Configuring VPLS" and "Configuring MPLS L2VPN." For more information about static SRLSPs and SRGBs, see SR-MPLS configuration in Segment Routing Configuration Guide.
If you configure this command multiple times, the most recent configuration takes effect.
Examples
# Set the value range to 10000 to 15000 for dynamic labels that the device can allocate.
<Sysname> system-view
[Sysname] mpls label range 10000 15000
mpls label-usage threshold-alarm percent
Use mpls label-usage threshold-alarm percent to set alarm thresholds for MPLS label usage.
Use undo mpls label-usage threshold-alarm percent to restore the default.
Syntax
mpls label-usage threshold-alarm percent { dynamic | egress | egress6 | l3vpn | srgb | srlb |static | vpls | vpws } upper-limit upper-percent lower-limit lower-percent
undo mpls label-usage threshold-alarm percent { dynamic | egress | egress6 | l3vpn | srgb | srlb | static | vpls | vpws }
Default
The usage alarm upper threshold is 80% and lower threshold is 70% for all types of MPLS labels.
Views
System view
Predefined user roles
network-admin
Parameters
dynamic: Specifies dynamic allocated MPLS labels.
egress: Specifies egress MPLS labels (labels allocated to egress LSPs).
egress6: Specifies IPv6 egress MPLS labels (labels allocated to IPv6 egress LSPs).
l3vpn: Specifies L3VPN MPLS labels (labels allocated to MPLS L3VPN).
srgb: Specifies SRGB MPLS labels (labels allocated to SRGB).
srlb: Specifies SRLB MPLS labels (labels allocated to SRLB).
static: Specifies statically configured MPLS labels.
vpls: Specifies VPLS MPLS labels (labels allocated to VPLS).
vpws: Specifies VPWS MPLS labels (labels allocated to VPWS).
upper-limit upper-percent: Specifies the upper threshold for MPLS label usage, in the range of 1% to 99%.
lower-limit lower-percent: Specifies the lower threshold for MPLS label usage, in the range of 1% to 99%.
Usage guidelines
After SNMP notifications for MPLS label usage are enabled, the device generates a notification when MPLS label usage exceeds the upper threshold or drops below the lower threshold. To enable SNMP notifications for MPLS label usage, use the snmp-agent trap enable mpls-private label-threshold command.
The MPLS label usage upper threshold must be greater than the lower threshold.
Examples
# Set the usage alarm upper threshold to 90% and lower threshold to 80% for dynamic MPLS labels.
<Sysname> system-view
[Sysname] mpls label-usage threshold-alarm percent dynamic upper-limit 90 lower-limit 80
Related commands
snmp-agent trap enable mpls-private
mpls lsr-id
Use mpls lsr-id to configure an LSR ID for the local LSR.
Use undo mpls lsr-id to restore the default.
Syntax
mpls lsr-id lsr-id
undo mpls lsr-id
Default
An LSR has no LSR ID.
Views
System view
Predefined user roles
network-admin
Parameters
lsr-id: Specifies an ID for identifying the LSR, in dotted decimal notation.
Usage guidelines
As a best practice, use the address of a loopback interface on the LSR as the LSR ID.
If no LDP LSR ID is configured for the public network or a VPN instance, LDP uses the MPLS LSR ID configured by the mpls lsr-id command. If you modify the MPLS LSR ID, the LDP sessions in the public network or VPN instance will be re-established. To configure an LDP LSR ID for the public network or a VPN instance, use the lsr-id command in LDP view or LDP-VPN instance view.
Examples
# Configure the LSR ID as 3.3.3.3 for the local node.
<Sysname> system-view
[Sysname] mpls lsr-id 3.3.3.3
# Change the LSR ID to 4.4.4.4.
[Sysname] mpls lsr-id 4.4.4.4
All LDP sessions using the MPLS LSR ID will be reset. Continue? [Y/N]:Y
Related commands
lsr-id
mpls mtu
Use mpls mtu to set the MPLS MTU for an interface.
Use undo mpls mtu to restore the default.
Syntax
mpls mtu size
undo mpls mtu
Default
The MPLS MTU of an interface is not configured. Fragmentation for MPLS packets is based on the MTU set on the interface by the ip mtu command. If no MTU is set by the ip mtu command, the fragmentation is based on the MTU of the interface. The length of a fragment does not include that of the MPLS label. Thus, after an MPLS label is added into a fragment, the length of the MPLS fragment might exceed the interface MTU.
If the peer interface cannot receive packets larger than the IP MTU, set the MPLS MTU of the local interface to be smaller than the IP MTU to ensure normal packet forwarding.
Views
Interface view
Predefined user roles
network-admin
Parameters
size: Specifies the MPLS MTU of the interface, in the range of 46 to 65535 bytes.
Usage guidelines
This command is effective only when MPLS is enabled on the interface.
If the MPLS MTU is larger than the interface MTU, data forwarding might fail.
MPLS TE tunnel interfaces do not support this command.
Examples
# Set the MPLS MTU of VLAN-interface 2 to 1000 bytes.
<Sysname> system-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] mpls enable
[Sysname-Vlan-interface2] mpls mtu 1000
Related commands
display mpls interface
mpls statistics
Use mpls statistics to enable MPLS label forwarding statistics for LSPs.
Use undo mpls statistics to disable MPLS label forwarding statistics for LSPs.
Syntax
mpls statistics { all | [ vpn-instance vpn-instance-name ] { ipv4 ipv4-address mask-length | ipv6 ipv6-address prefix-length } | static | te ingress-lsr-id tunnel-id }
undo mpls statistics { all | [ vpn-instance vpn-instance-name ] { ipv4 ipv4-address mask-length | ipv6 ipv6-address prefix-length } | static | te ingress-lsr-id tunnel-id }
Default
MPLS label forwarding statistics are disabled for all LSPs.
Views
System view
Predefined user roles
network-admin
Parameters
all: Specifies all LSPs.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command enables MPLS forwarding statistics for public LSPs.
ipv4 ipv4-address mask-length: Specifies the IPv4 LSP for an FEC specified by an IPv4 address and a mask length. The mask length is in the range of 0 to 32.
ipv6 ipv6-address prefix-length: Specifies the BGP-IPv6 LSP for an FEC specified by an IPv6 address and a prefix length. The prefix length is in the range of 0 to 128.
static: Specifies static LSPs and static CRLSPs.
te ingress-lsr-id tunnel-id: Specifies an RSVP-TE tunnel. The ingress-lsr-id represents the LSR ID of the ingress node of the tunnel. The tunnel-id argument represents the ID of the tunnel. The value range for the tunnel-id argument is 0 to 9214. If you specify this option, the device automatically sets the MPLS label forwarding statistics collection interval to 30 seconds.
Usage guidelines
MPLS label forwarding forwards a labeled packet based on its incoming label. MPLS label forwarding statistics is enabled by this command.
FTN forwarding adds a label to an unlabeled packet, and forwards the labeled packet. FTN forwarding statistics collection is enabled by the mpls-forwarding statistics prefix-list command in RIB IPv4 address family view.
To display MPLS label forwarding statistics for the specified LSPs by using the display mpls lsp verbose command, you must perform the following tasks:
· Use the mpls statistics command to enable the MPLS label forwarding statistics feature for the LSPs.
· Use the mpls statistics interval command to set the MPLS label forwarding statistics collection interval.
If you specify the te ingress-lsr-id tunnel-id option in the mpls statistics command, the MPLS label forwarding statistics collection interval is automatically set to 30 seconds. If you also execute the mpls statistics interval command, the interval set by the mpls statistics interval command takes effect.
The execution of the mpls statistics enable command on a PE enables MPLS label forwarding statistics for a VPN instance and for all LSPs in the VPN instance. For more information about enabling MPLS label forwarding statistics for a VPN instance, see the MPLS L3VPN configuration in MPLS Configuration Guide.
The undo mpls statistics all command cannot disable MPLS label forwarding statistics for a VPN instance or a protocol after the mpls statistics command is executed with the vpn-instance, ipv4, ipv6, static, or te keyword specified. To disable MPLS label forwarding statistics for the VPN instance or protocol, execute the undo mpls statistics command with the vpn-instance, ipv4, ipv6, static, or te keyword specified.
Examples
# Enable MPLS label forwarding statistics for the LSP destined for 2.2.2.2/32.
<Sysname> system-view
[Sysname] mpls statistics ipv4 2.2.2.2 32
Related commands
display mpls lsp verbose
mpls statistics interval
reset mpls statistics
mpls statistics interval
Use mpls statistics interval to set the MPLS label forwarding statistics collection interval.
Use undo mpls statistics interval to delete the MPLS label forwarding statistics collection interval.
Syntax
mpls statistics interval interval
undo mpls statistics interval
Default
The MPLS forwarding statistics collection interval is not set.
Views
System view
Predefined user roles
network-admin
Parameters
interval: Specifies the MPLS label forwarding statistics collection interval, in the range of 30 to 65535 seconds.
Usage guidelines
To display MPLS label forwarding statistics for the specified LSPs by using the display mpls lsp verbose command, you must perform the following tasks:
· Use the mpls statistics command to enable the MPLS label forwarding statistics feature for the LSPs.
· Use the mpls statistics interval command to set the MPLS label forwarding statistics collection interval.
If you specify the te ingress-lsr-id tunnel-id option in the mpls statistics command, the MPLS label forwarding statistics collection interval is automatically set to 30 seconds. If you also execute the mpls statistics interval command, the interval set by the mpls statistics interval command takes effect.
Examples
# Set the MPLS label forwarding statistics collection interval to 30 seconds.
<Sysname> system-view
[Sysname] mpls statistics interval 30
Related commands
display ip vpn-instance mpls statistics
display mpls lsp verbose
mpls statistics
mpls statistics enable
reset ip vpn-instance mpls statistics
reset mpls statistics
mpls ttl propagate
Use mpls ttl propagate to enable TTL propagation.
Use undo mpls ttl propagate to disable TTL propagation.
Syntax
mpls ttl propagate { public | vpn }
undo mpls ttl propagate { public | vpn }
Default
TTL propagation is enabled for public network packets and is disabled for VPN packets.
Views
System view
Predefined user roles
network-admin
Parameters
public: Specifies public network packets.
vpn: Specifies VPN packets.
Usage guidelines
When TTL propagation is enabled, MPLS performs the following operations:
· Copies the IP TTL to the label TTL for packets entering the MPLS network.
· Copies the label TTL to the IP TTL for packets leaving the MPLS network.
If you enable TTL propagation on both ingress and egress, the IP tracert facility can show the real path in the MPLS network.
When TTL propagation is disabled, MPLS performs the following operations:
· Sets the label TTL to 255 for packets entering the MPLS network.
· Pops the label for packets leaving the MPLS network, without copying the label TTL value to the IP TTL.
The IP tracert facility cannot show the real path in the MPLS network.
Within an MPLS network, TTL is always copied between the labels of an MPLS packet. The mpls ttl propagate command affects only the propagation between IP TTL and label TTL.
As a best practice, set the same TTL processing mode on all LSRs of an LSP.
To enable TTL propagation for a VPN, you must enable it on all PE devices in the VPN. This allows you to obtain the same traceroute result (hop count) from those PEs.
Examples
# Enable TTL propagation for VPN packets.
<Sysname> system-view
[Sysname] mpls ttl propagate vpn
reset mpls statistics
Use reset mpls statistics to clear MPLS forwarding statistics for the specified LSPs.
Syntax
reset mpls statistics { all | [ vpn-instance vpn-instance-name ] { ipv4 ipv4-address mask-length | ipv6 ipv6-address prefix-length } | static | te ingress-lsr-id tunnel-id }
Views
User view
Predefined user roles
network-admin
Parameters
all: Specifies all LSPs.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command clears MPLS forwarding statistics for public LSPs.
ipv4 ipv4-address mask-length: Specifies the IPv4 LSP for an FEC specified by an IPv4 address and a mask length. The mask length is in the range of 0 to 32.
ipv6 ipv6-address prefix-length: Specifies the BGP-IPv6 LSP for an FEC specified by an IPv6 address and a prefix length. The prefix length is in the range of 0 to 128.
static: Specifies static LSPs and static CRLSPs.
te ingress-lsr-id tunnel-id: Specifies an RSVP-TE tunnel. The ingress-lsr-id argument represents the LSR ID of the ingress node of the tunnel. The tunnel-id argument represents the ID of the tunnel. The value range for the tunnel-id argument is 0 to 9214.
Examples
# Clear MPLS forwarding statistics for the LSP destined for 2.2.2.2/32.
<Sysname> reset mpls statistics ipv4 2.2.2.2 32
Related commands
display mpls lsp verbose
mpls statistics
mpls statistics interval
snmp-agent trap enable mpls
Use snmp-agent trap enable mpls to enable SNMP notifications for MPLS.
Use undo snmp-agent trap enable mpls to disable SNMP notifications for MPLS.
Syntax
snmp-agent trap enable mpls
undo snmp-agent trap enable mpls
Default
SNMP notifications for MPLS are disabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
To report critical MPLS events to an NMS, enable SNMP notifications for MPLS. For MPLS 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.
Examples
# Enable SNMP notifications for MPLS.
<Sysname> system-view
[Sysname] snmp-agent trap enable mpls
snmp-agent trap enable mpls-private
Use snmp-agent trap enable mpls-private to enable private SNMP notifications for MPLS.
Use undo snmp-agent trap enable mpls-private to disable private SNMP notifications for MPLS.
Syntax
snmp-agent trap enable mpls-private [ label-threshold | label-total | slsp-up-down | tunnel-to-vpn ] *
undo snmp-agent trap enable mpls-private [ label-threshold | label-total | slsp-up-down | tunnel-to-vpn ] *
Default
Private SNMP notifications for MPLS are disabled.
Views
System view
Predefined user roles
network-admin
Parameters
label-threshold: Sends a notification when MPLS label usage exceeds the upper threshold or drops below the lower threshold. To set the MPLS label usage upper and lower thresholds, use the mpls label-usage threshold-alarm percent command.
label-total: Sends a notification when MPLS label usage reaches 100% or drops from 100% to 95%.
slsp-up-down: Sends a notification when a static LSP goes up or down.
tunnel-to-vpn: Sends a notification when the recursive tunnel for a VPN instance changes.
Usage guidelines
This command enables generating SNMP notifications for MPLS events of label-threshold, label-total, slsp-up-down, and tunnel-to-vpn. These notifications are not defined in an RFC and are private MPLS notifications supported by the device. For SNMP to output the private MPLS notifications correctly, you must also configure parameters for sending SNMP notifications. For more information about SNMP configuration, see Network Management and Monitoring Configuration Guide.
If you do not specify any parameters, this command enables or disables all private SNMP notifications for MPLS.
Examples
# Enable all private SNMP notifications for MPLS.
<Sysname> system-view
[Sysname] snmp-agent trap enable mpls-private
Related commands
snmp-agent trap enable mpls
