ipv4-acl-number: Specifies an IPv4 basic or advanced ACL by its number, in the range of 2000 to 3999. If the ACL does not exist or does not have contain rules, the IPv4 multicast flow policy does not take effect on any multicast groups.

name ipv4-acl-name: Specifies an IPv4 basic or advanced ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters and must begin with an English letter. To avoid confusion, make sure the argument is not all. If the ACL does not exist or does not have contain rules, the IPv4 multicast flow policy does not take effect on any multicast groups.

Usage guidelines

This command is not supported by the default IPv4 multicast flow policy.

If a multicast group matches the ACL specified in an IPv4 multicast flow policy, the estimated bandwidth configured in the policy is used for the multicast flows of the multicast group.

In a basic ACL rule, the source parameter specifies a multicast group range. Among the other optional parameters, only the fragment keyword and the time-range time-range-name option take effect.

In an advanced ACL rule, the source parameter specifies a multicast source range, and the destination parameter specifies a multicast group range. Among the other optional parameters, only the fragment keyword and the time-range time-range-name option take effect.

An ACL rule containing the vpn-instance vpn-instance option does not take effect.

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

Example

# Configure an IPv4 multicast flow policy to take effect on the multicast group range 224.1.0.0/16.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000] rule permit source 224.1.0.0 0.0.255.255

[Sysname-acl-ipv4-basic-2000] quit

[Sysname] multicast routing

[Sysname-mrib] flow-policy name abc

[Sysname-mrib-flow-policy-abc] acl 2000

Related commands

flow-policy (IPv4 MRIB view)

bandwidth (IPv4 multicast flow policy view)

Use bandwidth to set the estimated bandwidth for multicast flows.

Use undo bandwidth to restore the default.

Syntax

bandwidth bandwidth { gbps | kbps | mbps }

undo bandwidth

Default

The estimated bandwidth for multicast flows is 0.

Views

IPv4 multicast flow policy view

Predefined user roles

network-admin

Parameters

bandwidth: Specifies the estimated bandwidth in the range of 1 to 10000.

gbps: Specifies Gbps as the bandwidth unit.

kbps: Specifies kbps as the bandwidth unit.

Mbps: Specifies Mbps as the bandwidth unit.

Usage guidelines

The estimated bandwidth is selected for IPv4 multicast flows as follows:

1. If the multicast group of an IPv4 multicast flow matches the ACL specified in a custom IPv4 multicast flow policy, the estimated bandwidth configured in the policy is selected for the multicast flow.

2. If the multicast group of an IPv4 multicast flow does not match an ACL in any custom IPv4 multicast flow policy, the estimated bandwidth configured in the default policy is selected for the multicast flow.

3. If the default policy is not created or the estimated bandwidth is not configured in the default policy, the estimated bandwidth for the multicast flow is 0.

Example

# Set the estimated bandwidth to 200 Mbps for IPv4 multicast flow policy abc.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib] flow-policy name abc

[Sysname-mrib-flow-policy-abc] bandwidth 200 mbps

Related commands

flow-policy (IPv4 MRIB view)

delete ip rpf-route-static

Use delete ip rpf-route-static to delete all static multicast routes.

Syntax

delete ip rpf-route-static [ vpn-instance vpn-instance-name ]

Views

System view

Predefined user roles

network-admin

Parameters

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 deletes all static multicast routes on the public network.

Usage guidelines

This command deletes all static multicast routes. To delete a specified static multicast route, use the undo ip rpf-route-static command.

Examples

# Delete all static multicast routes on the public network.

<Sysname> system-view

[Sysname] delete ip rpf-route-static

This will erase all multicast static routes and their configurations, you must reconfigure all static routes.

Are you sure?[Y/N]:y

Related commands

ip rpf-route-static

display mrib interface

Use display mrib interface to display information about interfaces maintained by the MRIB.

Syntax

display mrib [ vpn-instance vpn-instance-name ] interface [ interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays information about interfaces maintained by the MRIB on the public network.

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

Examples

# Display information about interfaces maintained by the MRIB on the public network.

<Sysname> display mrib interface

Interface: GigabitEthernet0/0/1

Index: 0x00004444

Current state: up

MTU: 1500

Type: BROADCAST

Protocol: PIM-DM

PIM protocol state: Enabled

Address list:

1. Local address : 8.12.0.2/16

Remote address: 0.0.0.0

Reference : 1

State : NORMAL

Table 1 Command output

Field	Description
Interface	Interface name.
Index	Index number of the interface.
Current state	Current status of the interface: up or down.
MTU	MTU value.
Type	Interface type: · BROADCAST—Broadcast link interface. · P2P—P2P interface. · LOOP—Loopback interface. · REGISTER—Register interface. · NBMA—NBMA interface. · MTUNNEL—Multicast tunnel interface. · MUPE—Multicast-UPE interface. · P2MP—P2MP interface. · LSP—LSP interface. This field is empty if the interface is Null 0.
Protocol	Protocol running on the interface: PIM-DM, PIM-SM, IGMP, PROXY, or MD.
PIM protocol state	Whether PIM is enabled: Enabled or Disabled.
Address list	Interface address list.
Local address	Local IP address.
Remote address	Remote end IP address. This field is displayed only when the interface is vlink type.
Reference	Number of times that the address has been referenced.
State	Status of the interface address: NORMAL or DEL.

display multicast boundary

Use display multicast boundary to display multicast boundary information.

Syntax

display multicast [ vpn-instance vpn-instance-name ] boundary [ group-address [ mask-length | mask ] ] [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays multicast boundary information on the public network.

group-address: Specifies a multicast group by its IP address in the range of 224.0.0.0 to 239.255.255.255. If you do not specify a multicast group, this command displays multicast boundary information for all multicast groups.

mask-length: Specifies an address mask length in the range of 4 to 32. The default is 32.

mask: Specifies an address mask. The default is 255.255.255.255.

interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, this command displays multicast boundary information for all interfaces.

Examples

# Display information about all multicast boundaries on the public network.

<Sysname> display multicast boundary

Boundary Interface

224.1.1.0/24 GE0/0/1

239.2.2.0/24 GE0/0/2

Table 2 Command output

Field	Description
Boundary	Multicast group associated with the multicast boundary.
Interface	Boundary interface associated with the multicast boundary.

Related commands

multicast boundary

display multicast fast-forwarding cache

Use display multicast fast-forwarding cache to display multicast fast forwarding entries.

Syntax

display multicast [ vpn-instance vpn-instance-name ] fast-forwarding cache [ source-address | group-address ] * [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays multicast fast forwarding entries on the public network.

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.1.0 to 239.255.255.255.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays multicast fast forwarding entries for the MPU.

Examples

# Display multicast fast forwarding entries on the public network.

<Sysname> display multicast fast-forwarding cache

Total 1 entries, 1 matched

(60.1.1.200, 225.0.0.2)

Status : Enabled

Source port: 2001 Destination port: 2002

Protocol : 2 Flag : 0x2

Incoming interface: GigabitEthernet0/0/3

List of 1 outgoing interfaces:

GigabitEthernet0/0/2

Status: Enabled Flag: 0x14

Table 3 Command output

Field	Description
Total 1 entries, 1 matched	Total number of (S, G) entries in the multicast fast forwarding table, and the total number of matching (S, G) entries.
(60.1.1.200, 225.0.0.2)	(S, G) entry.
Protocol	Protocol number.
Flag	Flag of the (S, G) entry or the outgoing interface in the entry. This field displays one flag or the sum of multiple flags. In this example, the value 0x2 means that the entry has only one flag 0x2. The value 0x14 means that the interface has flags 0x4 and 0x10. The following flags are available for an entry: · 0x1—The entry is created because of packets passed through between cards. · 0x2—The entry is added by multicast forwarding. The following flags are available for an outgoing interface: · 0x1—The interface is added to the entry because of packets passed through between cards. · 0x2—The interface is added to an existing entry. · 0x4—The MAC address of the interface is needed for fast forwarding. · 0x8—The interface is an outgoing interface associated with the incoming VLAN or super VLAN interface. · 0x10—The interface is associated with the entry. · 0x20—The interface is to be deleted.
Status	Status of the (S, G) entry or the outgoing interface: · Enabled—Available. · Disabled—Unavailable.
Incoming interface	Incoming interface of the (S, G) entry.
List of 1 outgoing interfaces	Outgoing interface list of the (S, G) entry.

Related commands

reset multicast fast-forwarding cache all

display multicast flow-policy info

Use display multicast flow-policy info to display link selection information for IPv4 multicast flow policies.

Syntax

display multicast [ vpn-instance vpn-instance-name ] flow-policy info [ interface interface-type interface-number | source source-address | group group-address | policy { default | name policy-name } ] *

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays link selection information for IPv4 multicast flow policies on the public network.

interface interface-type interface-number: Displays link selection information for IPv4 multicast flow policies on an interface.

source source-address: Displays link selection information for IPv4 multicast flow policies for a multicast source.

group group-address: Displays link selection information for IPv4 multicast flow policies for a multicast group. The value range for the group-address argument is 224.0.0.0 to 239.255.255.255.

policy default: Specifies the default IPv4 multicast flow policy.

policy name policy-name: Specifies a custom IPv4 multicast flow policy by its name, a case-insensitive string of 1 to 63 characters.

Usage guidelines

If you do not specify the source, group, or policy parameter, this command displays link selection information for all IPv4 multicast flow policies.

Examples

# Display link selection information for all IPv4 multicast flow policies on the public network.

<Sysname> display multicast flow-policy info

Total 2 interfaces, 2 matched

GigabitEthernet0/0/1:

Available bandwidth: 100000k

Used bandwidth: 30M (30%)

Total 4 entries, 4 matched

Flow bandwidth: 5M

Total 2 entries, 2 matched

(1.1.1.1, 225.0.0.1)

Flow policy: video1

(1.1.1.1, 225.0.0.2)

Default flow policy

Flow bandwidth: 10M

Total 2 entries, 2 matched

(1.1.1.1, 225.0.0.11)

Flow policy: audio1

(1.1.1.1, 225.0.0.12)

Flow policy: video2

GigabitEthernet0/0/2:

Available bandwidth: 100000k

Used bandwidth: 10M (10%)

Total 1 entries, 1 matched

Flow bandwidth: 10M

Total 1 entries, 1 matched

(1.1.1.1, 226.0.0.1)

Flow policy: video3

Table 4 Command output

Field	Description
Total 2 interfaces, 2 matched	Total number of interfaces enabled with PIM and number of matching interfaces.
Available bandwidth	Total available multicast bandwidth on the interface.
Used bandwidth	Used multicast bandwidth in percentage on the interface.
Total 4 entries, 4 matched	Total number of (S, G) entries that have selected the interface as an upstream interface and number of matching (S, G) entries.
Flow bandwidth	Estimated bandwidth configured in an IPv4 multicast flow policy.
Total 1 entries, 1 matched	Total number of (S, G) entries for the IPv4 multicast flow policy and number of matching (S, G) entries.
(1.1.1.1, 225.0.0.1)	(S, G) entry for the IPv4 multicast flow.
Flow policy	Name of the custom IPv4 multicast flow policy.
Default flow policy	Name of the default IPv4 multicast flow policy.

Related commands

flow-ucmp unicast reserved-bandwidth

display multicast forwarding df-info

Use display multicast forwarding df-info to display DF information.

Syntax

display multicast [ vpn-instance vpn-instance-name ] forwarding df-info [ rp-address ] [ verbose ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command displays DF information on the public network.

rp-address: Specifies a BIDIR-PIM RP by its IP address.

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

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays DF information for the MPU.

Usage guidelines

In a BIDIR-PIM domain, only the DF on each subnet can forward multicast data destined for a multicast group toward the RP of the group. For more information about the DF, see IP Multicast Configuration Guide.

Examples

# Display brief information about DFs on the public network.

<Sysname> display multicast forwarding df-info

Total 1 RPs, 1 matched

00001. RP address: 7.11.0.2

Flags: 0x0

Uptime: 04:14:40

RPF interface: GigabitEthernet0/0/1

List of 1 DF interfaces:

1: GigabitEthernet0/0/2

# Display detailed information about DFs on the public network.

<Sysname> display multicast forwarding df-info verbose

Total 1 RPs, 1 matched

00001. RP address: 7.11.0.2

MID: 2, Flags: 0x0

Uptime: 03:37:22

Product information: 0x7a2f762f, 0x718fee9f, 0x4b82f137, 0x71c32184

RPF interface: GigabitEthernet0/0/1

Product information: 0xa567d6fc, 0xadeb03e3

Tunnel information: 0xdfb107d4, 0x7aa5d510

List of 1 DF interfaces:

1: GigabitEthernet0/0/2

Product information: 0xa986152b, 0xb74a9a2f

Tunnel information: 0x297ca208, 0x76985b89

Table 5 Command output

Field	Description
Total 1 RPs, 1 matched	Total number of RPs, and the total number of matching RPs.
00001	Sequence number of the entry to which the RP is designated.
RP address	IP address of the RP.
MID	ID of the entry to which the RP is designated. Each entry to which the RP is designated has a unique MID.
Flags	Entry flag. This field displays one flag or the sum of multiple flags. In this example, the value 0x0 means that the entry has only one flag 0x0. The following flags are available for an entry: · 0x0—The entry is in correct state. · 0x4—The entry fails to update. · 0x8—DF interface information fails to update for the entry. · 0x40—The entry is to be deleted. · 0x100—The entry is being deleted. · 0x200—The entry is in GR state.
Uptime	Length of time for which the entry has been up.
RPF interface	RPF interface to the RP.
List of 1 DF interfaces	DF interface list.

display multicast forwarding event

Use display multicast forwarding event to display statistics of multicast forwarding events.

Syntax

display multicast [ vpn-instance vpn-instance-name ] forwarding event [ slot slot-number]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays statistics of the multicast forwarding events on the public network.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays statistics of multicast forwarding events for the MPU.

Examples

# Display statistics of multicast forwarding events on the public network.

<Sysname> display multicast forwarding event

Total active events sent: 0

Total inactive events sent: 0

Total NoCache events sent: 2

Total NoCache events dropped: 0

Total WrongIF events sent: 0

Total WrongIF events dropped: 0

Total SPT switch events sent: 0

NoCache rate limit: 1024 packets/s

WrongIF rate limit: 1 packets/10s

Total timer of register suppress timeout: 0

Table 6 Command output

Field	Description
Total active events sent	Number of times that entry-active events have been sent.
Total inactive events sent	Number of times that entry-inactive events have been sent.
Total NoCache events sent	Number of times that NoCache events have been sent.
Total NoCache events dropped	Number of times that NoCache events have been dropped.
Total WrongIF events sent	Number of times that WrongIF events have been sent.
Total WrongIF event dropped	Number of times that WrongIF events have been dropped.
Total SPT switch events sent	Number of times that SPT-switch events have been sent.
NoCache rate limit	Rate limit for sending NoCache events, in pps.
WrongIF rate limit	Rate limit for sending WrongIF events, in packets per 10 seconds.
Total timer of register suppress timeout	Number of times that the registration suppression has timed out in total.

Related commands

reset multicast forwarding event

display multicast forwarding-table

Use display multicast forwarding-table to display multicast forwarding entries.

Syntax

display multicast [ vpn-instance vpn-instance-name ] forwarding-table [ source-address [ mask { mask-length | mask } ] | group-address [ mask { mask-length | mask } ] | incoming-interface interface-type interface-number | outgoing-interface { exclude | include | match } interface-type interface-number | slot slot-number | statistics ] *

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays multicast forwarding entries on the public network.

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.

mask-length: Specifies an address mask length. The default value is 32. For a multicast group address, the value range for this argument is 4 to 32. For a multicast source address, the value range for this argument is 0 to 32.

mask: Specifies an address mask. The default value is 255.255.255.255.

incoming-interface: Specifies the multicast forwarding entries that contain the specified incoming interface.

interface-type interface-number: Specifies an incoming interface by its type and number.

outgoing-interface: Specifies the multicast forwarding entries that contain the specified outgoing interface.

exclude: Specifies the multicast forwarding entries that do not contain the specified interface in the outgoing interface list.

include: Specifies the multicast forwarding entries that contain the specified interface in the outgoing interface list.

match: Specifies the forwarding entries that contain only the specified interface in the outgoing interface list.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays multicast forwarding entries for the MPU.

statistics: Displays statistics for the multicast forwarding table.

Examples

# Display multicast forwarding entries on the public network.

<Sysname> display multicast forwarding-table

Total 1 entries, 1 matched

00001. (172.168.0.2, 227.0.0.1)

Flags: 0x0

Uptime: 00:08:32, Timeout in: 00:03:26

Incoming interface: GigabitEthernet0/0/1

List of 1 outgoing interfaces:

1: GigabitEthernet0/0/2

Matched 19648 packets(20512512 bytes), Wrong If 0 packet

Forwarded 19648 packets(20512512 bytes)

Table 7 Command output

Field	Description
Total 1 entries, 1 matched	Total number of (S, G) entries, and the total number of matching (S, G) entries.
00001	Sequence number of the (S, G) entry.
(172.168.0.2,227.0.0.1)	(S, G) entry.
Flags	Entry flag. This field displays one flag or the sum of multiple flags. In this example, the value 0x0 means that the entry has only one flag 0x0. The following entries are available for an entry: · 0x0—The entry is in correct state. · 0x1—The entry is in inactive state. · 0x2—The entry is null. · 0x4—The entry fails to update. · 0x8—Outgoing interface information fails to update for the entry. · 0x10—Data-group information fails to update for the entry. · 0x20—A register outgoing interface is available. · 0x40—The entry is to be deleted. · 0x80—The entry is in registration suppression state. · 0x100—The entry is being deleted. · 0x200—The entry is in GR state. · 0x400—The entry has the VLAN interface of the super VLAN. · 0x800—The entry has the associated ARP entry for the multicast source address. · 0x400000—The entry is created by the IGMP proxy. · 0x2000000—The entry is a BIDIR-PIM forwarding entry.
Uptime	Length of time for which the (S, G) entry has been up.
Timeout in	Length of time in which the (S, G) entry will expire.
Incoming interface	Incoming interface of the (S, G) entry.
Incoming sub-VLAN	Incoming sub-VLAN of the super VLAN when the incoming interface of the (S, G) entry is the VLAN interface of this super VLAN.
Outgoing sub-VLAN	Outgoing sub-VLAN of the super VLAN when the incoming interface of the (S, G) entry is the VLAN interface of this super VLAN.
List of 1 outgoing interfaces	Outgoing interface list of the (S, G) entry.
Sub-VLAN	Outgoing sub-VLAN of the super VLAN when the outgoing interface of the (S, G) entry is the VLAN interface of this super VLAN.
Matched 19648 packets(20512512 bytes), Wrong If 0 packet	Number of packets (bytes) that match the (S, G) entry, and number of packets with incoming interface errors. The numbers are displayed as 0 if an outgoing interface of the (S, G) entry is on the specified slot.
Forwarded 19648 packets(20512512 bytes)	Number of packets (bytes) that have been forwarded. The numbers are displayed as 0 if an outgoing interface of the (S, G) entry is on the specified slot.

Related commands

reset multicast forwarding-table

display multicast forwarding-table df-list

Use display multicast forwarding-table df-list to display information about the DF list in multicast forwarding entries.

Syntax

display multicast [ vpn-instance vpn-instance-name ] forwarding-table df-list [ group-address ] [ verbose ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command displays information about the DF list in multicast forwarding entries on the public network.

group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.

verbose: Specifies detailed information about the DF list in multicast forwarding entries. If you do not specify this keyword, the command displays brief information about the DF list in multicast forwarding entries.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information about the DF list in multicast forwarding entries for the MPU.

Examples

# Display brief information about the DF list in multicast forwarding entries on the public network.

<Sysname> display multicast forwarding-table df-list

Total 1 entries, 1 matched

00001. (0.0.0.0, 225.0.0.1)

List of 1 DF interfaces:

1: GigabitEthernet0/0/1

# Display detailed information about the DF list in multicast forwarding entries on the public network.

<Sysname> display multicast forwarding-table df-list verbose

Total 1 entries, 1 matched

00001. (0.0.0.0, 225.0.0.1)

List of 1 DF interfaces:

1: GigabitEthernet0/0/1

Product information: 0x347849f6, 0x14bd6837

Tunnel information: 0xc4857986, 0x128a9c8f

Table 8 Command output

Field	Description
Total 1 entries, 1 matched	Total number of forwarding entries, and the total number of matching entries.
00001	Sequence number of the entry.
(0.0.0.0, 225.0.0.1)	(*, G) entry.
List of 1 DF interfaces	DF interface list.

‌

display multicast routing-table

Use display multicast routing-table to display multicast routing entries.

Syntax

display multicast [ vpn-instance vpn-instance-name ] routing-table [ source-address [ mask { mask-length | mask } ] | group-address [ mask { mask-length | mask } ] | incoming-interface interface-type interface-number | outgoing-interface { exclude | include | match } interface-type interface-number ] *

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.

mask: Specifies an address mask. The default is 255.255.255.255.

incoming-interface: Specifies the multicast routing entries that contain the specified incoming interface.

interface-type interface-number: Specifies an interface by its type and number.

outgoing-interface: Specifies the multicast routing entries that contain the specified outgoing interface.

exclude: Specifies the multicast routing entries that do not contain the specified interface in the outgoing interface list.

include: Specifies the multicast routing entries that contain the specified interface in the outgoing interface list.

match: Specifies the multicast routing entries that contain only the specified interface in the outgoing interface list.

Usage guidelines

Multicast routing entries are the basis of multicast forwarding. You can use this command to view the establishment state of (S, G) entries.

Examples

# Display multicast routing entries on the public network.

<Sysname> display multicast routing-table

Total 1 entries

00001. (172.168.0.2, 227.0.0.1)

Uptime: 00:00:28

Upstream Interface: GigabitEthernet0/0/1

List of 2 downstream interfaces

1: GigabitEthernet0/0/2

2: GigabitEthernet0/0/3

Table 9 Command output

Field	Description
Total 1 entries	Total number of (S, G) entries.
00001	Sequence number of the (S, G) entry.
(172.168.0.2, 227.0.0.1)	(S, G) entry.
Uptime	Length of time for which the (S, G) entry has been up.
Upstream Interface	Upstream interface at which (S, G) packets should arrive.
List of 2 downstream interfaces	List of downstream interfaces that need to forward (S, G) packets.

Related commands

reset multicast routing-table

display multicast routing-table static

Use display multicast routing-table static to display static multicast routing entries.

Syntax

display multicast [ vpn-instance vpn-instance-name ] routing-table static [ source-address { mask-length | mask } ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays static multicast routing entries on the public network.

source-address: Specifies a multicast source address.

mask-length: Specifies an address mask length in the range of 0 to 32.

mask: Specifies an address mask.

Usage guidelines

This command displays only valid static multicast routing entries.

Examples

# Display static multicast routing entries on the public network.

<Sysname> display multicast routing-table static

Destinations: 3 Routes: 4

Destination/Mask Pre RPF neighbor Interface

1.1.0.0/16 10 7.12.0.1 GE0/0/1

7.11.0.1 GE0/0/2

2.2.2.0/24 20 7.11.0.1 GE0/0/3

3.3.3.3/32 50 7.12.0.1 GE0/0/4

Table 10 Command output

Field	Description
Destinations	Number of the multicast destination addresses.
Routes	Number of routes.
Destination/Mask	Destination address and its mask length.
Pre	Route preference.
RPF neighbor	IP address of the RPF neighbor to the reachable destination.
Interface	Outgoing interface to the reachable destination.

display multicast rpf-info

Use display multicast rpf-info to display RPF information for a multicast source.

Syntax

display multicast [ vpn-instance vpn-instance-name ] rpf-info source-address [ group-address ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 displays RPF information for a multicast source on the public network.

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.1.0 to 239.255.255.255.

Examples

# Display RPF information for multicast source 192.168.1.55 on the public network.

<Sysname> display multicast rpf-info 192.168.1.55

RPF information about source 192.168.1.55:

RPF interface: GigabitEthernet0/0/1, RPF neighbor: 10.1.1.1

Referenced route/mask: 192.168.1.0/24

Referenced route type: igp

Route selection rule: preference-preferred

Load splitting rule: disable

Source AS: 0

C-multicast route target: 0x0000000000000000

Table 11 Command output

Field	Description
RPF neighbor	IP address of the RPF neighbor.
Referenced route/mask	Referenced route and its mask length.
Referenced route type	Type of the referenced route: · igp—IGP unicast route. · egp—EGP unicast route. · unicast (direct)—Directly connected unicast route. · unicast—Other unicast routes, such as static unicast route. · multicast static—Static multicast route. · mbgp—MBGP route.
Route selection rule	Rule for RPF route selection: · Route preference. · Longest prefix match.
Load splitting rule	Status of the load splitting rule: enable or disable.
Source AS	AS number of the source-side PE.
C-multicast route target	Route target attribute value of the C-multicast route.

Related commands

display multicast forwarding-table

display multicast routing-table

flow-policy (MRIB view)

Use flow-policy to create an IPv4 multicast flow policy and enter its view, or enter the view of an existing IPv4 multicast flow policy.

Use undo flow-policy to delete IPv4 multicast flow policies.

Syntax

flow-policy { default | name policy-name }

undo flow-policy { all | default | name policy-name }

Default

No IPv4 multicast flow policies exist.

Views

MRIB view

Predefined user roles

network-admin

Parameters

default: Specifies the default IPv4 multicast flow policy.

policy name policy-name: Specifies a custom IPv4 multicast flow policy by its name, a case-insensitive string of 1 to 63 characters.

all: Deletes all IPv4 multicast flow policies.

Usage guidelines

Operating mechanism

The device selects the link with the smallest bandwidth usage as the optimal link if the following conditions exist:

· ECMP routes between the device and an upstream device.

· The multicast load-splitting mode is flow-ucmp.

If two links have the same bandwidth usage, the link with the higher next-hop IP address is selected.

The bandwidth usage is calculated according to the following formula: Bandwidth usage = (Used bandwidth+Estimated bandwidth)/(Total interface bandwidth x (1–Unicast reserved bandwidth)).

· The estimated bandwidth is configured by the bandwidth command in IPv4 multicast flow policy view.

· The total interface bandwidth is configured by the bandwidth command in interface view.

· The unicast reserved bandwidth is configured by the flow-ucmp unicast reserve-bandwidth or multicast flow-ucmp unicast reserve-bandwidth command.

Restrictions and guidelines

For this command to take effect, you must configure the multicast load-splitting mode as flow-ucmp.

Adding, deleting, or modifying an IPv4 multicast flow policy does not affect the link selection results of existing multicast flows and affects link selection for only new multicast flows. Before configuring the multicast load-splitting mode as flow-ucmp, you must plan the configuration of an IPv4 multicast flow policy and the unicast reserved bandwidth configuration.

The change of link bandwidth and the change in the number of ECMP routes do not affect the route selection of existing multicast flows.

This feature does not affect multicast source-side link selection, link selection in PIM-DM, RPT link selection in PIM-SM, or local RP link selection.

If both IPv4 and IPv6 multicast flows exist in the network, increase the unicast reserved bandwidth as needed to avoid congestion.

Examples

# Create an IPv4 multicast flow policy named abc and enter its view.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib] flow-policy name abc

# Create the default IPv4 multicast flow policy and enter its view.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib] flow-policy default

Related commands

acl (IPv4 multicast flow policy)

bandwidth

display multicast flow-policy info

flow-ucmp unicast reserve-bandwidth (MRIB view)

Use flow-ucmp unicast reserve-bandwidth to set the global IPv4 unicast reserved bandwidth percentage.

Use undo flow-ucmp unicast reserve-bandwidth to restore the default.

Syntax

flow-ucmp unicast reserve-bandwidth percentage

undo flow-ucmp unicast reserve-bandwidth

Default

The global IPv4 unicast reserved bandwidth percentage is not set.

Views

MRIB view

Predefined user roles

network-admin

Parameters

percentage: Specifies the global IPv4 unicast reserved bandwidth percentage in the range of 1 to 100.

Usage guidelines

For this command to take effect, you must configure the multicast load-splitting mode as flow-ucmp.

Execute this command when IPv4 unicast traffic and IPv4 multicast traffic coexist in the network. The available bandwidth for multicast traffic is calculated based on the total interface bandwidth and the configured IPv4 unicast reserved bandwidth percentage. For example, if the total interface bandwidth is 100 kbps and the unicast reserved bandwidth percentage is 20% (20 kbps), the available bandwidth for multicast traffic is 80 kbps.

The flow-ucmp unicast reserve-bandwidth command takes effect on all interfaces, and the multicast flow-ucmp unicast reserve-bandwidth command takes effect only on the current interface. If you execute both commands, the latter has higher priority.

Example

# Set the global IPv4 unicast reserved bandwidth percentage to 50%.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib] flow-ucmp unicast reserve-bandwidth 50

Related commands

multicast flow-ucmp unicast reserve-bandwidth

ip rpf-route-static

Use ip rpf-route-static to configure a static multicast route.

Use undo ip rpf-route-static to delete a static multicast route.

Syntax

ip rpf-route-static [ vpn-instance vpn-instance-name ] source-address { mask-length | mask } { rpf-nbr-address | interface-type interface-number } [ preference preference ] [ description text ]

undo ip rpf-route-static [ vpn-instance vpn-instance-name ] source-address { mask-length | mask } { rpf-nbr-address | interface-type interface-number }

Default

No static multicast routes exist.

Views

System view

Predefined user roles

network-admin

Parameters

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 configures a static multicast route on the public network.

source-address: Specifies a multicast source address.

mask-length: Specifies an address mask length in the range of 0 to 32.

mask: Specifies an address mask.

rpf-nbr-address: Specifies an RPF neighbor by its IP address.

interface-type interface-number: Specifies an interface by its type and number. The interface connects the RPF neighbor.

preference: Sets a route preference in the range of 1 to 255. The default value is 1.

description text: Specifies a description for the static multicast route, a case-sensitive string of 1 to 60 characters. The description can contain special characters except question marks (?).

Usage guidelines

If the interface connected to an RPF neighbor is a point-to-point interface, you must specify the interface by its type and number.

If the interface connected to an RPF neighbor is not a point-to-point interface, you must specify the interface by its IP address. This type of interfaces includes Layer 3 Ethernet, Layer 3 aggregate, loopback, and VLAN interfaces.

The configured static multicast route might not take effect when one of the following conditions exists:

· The outgoing interface iteration fails.

· The specified interface is not in the public network or the same VPN instance as the current interface.

· The specified interface is not a point-to-point interface.

· The specified interface is down.

If multiple static multicast routes within the same multicast source address range are available, only the one with the highest route preference can become active. You can use the display multicast routing-table static command to verify that the configured static multicast route has taken effect.

The undo ip rpf-route-static command deletes the specified static multicast route, but the delete ip rpf-route-static command deletes all static multicast routes.

Examples

# Configure a static multicast route to multicast source 10.1.1.0/24 and specify the interface with IP address 192.168.1.23 as the RPF neighbor on the public network.

<Sysname> system-view

[Sysname] ip rpf-route-static 10.1.1.0 24 192.168.1.23

Related commands

delete ip rpf-route-static

display multicast routing-table static

load-splitting (MRIB view)

Use load-splitting to enable multicast load splitting.

Use undo load-splitting to restore the default.

Syntax

load-splitting { balance-ecmp | balance-ucmp | ecmp | flow-ucmp | source | source-group | ucmp }

undo load-splitting

Default

Multicast load splitting is disabled.

Views

MRIB view

Predefined user roles

network-admin

Parameters

balance-ecmp: Enables multicast load balancing based on ECMP paths. Multicast traffic is evenly distributed among ECMP paths.

balance-ucmp: Enables multicast load balancing based on links. Multicast traffic is evenly distributed among links.

ecmp: Enables multicast load splitting based on ECMP paths.

flow-ucmp: Enables multicast load splitting based on the bandwidth usage of multicast flows.

source: Enables multicast load splitting based on multicast source.

source-group: Enables multicast load splitting based on multicast source and group.

ucmp: Enables multicast load splitting based on the link bandwidth.

Usage guidelines

This command does not take effect on BIDIR-PIM.

To use the flow-ucmp multicast load-splitting mode, you must first configure an IPv4 multicast flow policy and the IPv4 unicast reserved bandwidth percentage. Adding, deleting, or modifying an IPv4 multicast flow policy does not affect the link selection results of existing multicast flows and affects link selection for only new multicast flows.

On a network with ECMP routes, specify the balance-ecmp, ecmp, flow-ucmp, source, or source-group keyword. On a network with UCMP routes, specify the balance-ucmp or ucmp keyword.

· If you specify the ecmp keyword, adding or deleting ECMP routes severely affects multicast forwarding.

· If you specify the source or source-group keyword, adding or deleting ECMP routes slightly affects multicast forwarding. Specify either of the keywords on a network with unstable equal cost links.

· If you specify the balance-ecmp or balance-ucmp keyword, the device uses a polling mechanism for multicast load balancing. ECMP or UCMP-based multicast load balancing provides better stability and balance than ECMP or UCMP-based multicast load sharing.

· If you specify the flow-ucmp keyword, adding or deleting ECMP routes slightly affects multicast forwarding. Specify this keyword on a network with unstable equal-cost links. It provides better stability and balance than the ucmp multicast load-sharing mode.

Examples

# Enable multicast load splitting based on multicast source on the public network.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib] load-splitting source

longest-match (MRIB view)

Use longest-match to specify the longest prefix match principle for RPF route.

Use undo longest-match to restore the default.

Syntax

longest-match

undo longest-match

Default

Route preference is used for RPF route selection. The route with the highest preference is used as the RPF route.

Views

MRIB view

Predefined user roles

network-admin

Usage guidelines

This command enables the device to use the matching route with the longest prefix as the RPF route.

Examples

# Specify the longest prefix match principle for RPF route selection on the public network.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib] multicast longest-match

mtrace-service port

Use mtrace-service port to specify the UDP port number used by mtrace.

Use undo mtrace-service port to restore the default.

Syntax

mtrace-service port number

undo mtrace-service port

Default

Mtrace uses UDP port number 10240.

Views

System view

Predefined user roles

network-admin

Parameters

number: Specifies a UDP port number to be used by mtrace, in the range of 1024 to 49151.

Usage guidelines

Execute this command only when mtrace2 is used.

For successful mtrace, do not specify a UDP port number used by other modules.

You must specify the same UDP port number on all devices on the traced path. Additionally, the specified UDP port number must be the same as that specified in the mtrace v2 command.

Examples

# Specify 12345 as the UDP port number used by mtrace.

<Sysname> system-interview

[sysname] mtrace-service port 12345

Related commands

mtrace v2

mtrace v1

Use mtrace v1 to trace a multicast path through mtrace1.

Syntax

mtrace v1 [ vpn-instance vpn-instance-name ] { source-address | group-address } * [ destination address ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

Parameters

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 traces a multicast path on the public network.

source-address: Specifies a multicast source by its IP address.

group-address: Specifies a multicast group by its IP address, in the range of 224.0.1.0 to 239.255.255.255.

destination address: Specifies the destination address of mtrace. The default destination address is 224.0.0.2.

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

Usage guidelines

To perform a non-group-specific mtrace, specify a multicast source and a destination. The mtrace starts from the destination and ends at the device directly connected to the multicast source.

To perform a non-source-specific mtrace, specify a multicast group and a destination. The mtrace starts from the destination and ends at the RP associated with the multicast group.

To perform a source-and-group-specific mtrace, specify both a multicast source and a multicast group. If you also specify a destination, the mtrace starts from the destination and ends at the device directly connected to the multicast source. If you do not specify a destination, the mtrace starts from the upstream device of the client and ends at the device directly connected to the multicast source.

An mtrace process stops if the number of traced hops reaches 255.

If the client does not receive a Reply message within 10 seconds, the client initiates a hop-by-hop mtrace to determine which device on the path encountered an error. It sends a Query message with the hops field set to 1 and waits for a Reply message. If it does not receive a Reply message within 10 seconds, the client determines that this hop encountered an error. If the client receives a Reply message within 10 seconds, it sends a Query message with the hops field value increased by 1 and waits for a Reply message. This process continues until the client does not receive a Reply message within the waiting time any more.

Examples

# Use mtrace1 to trace the path along which multicast data of group 225.2.1.1 travels from source 10.11.5.24 to destination 192.168.2.2 and display brief mtrace information.

<Sysname> mtrace v1 10.11.5.24 225.2.1.1 destination 192.168.2.2

Mtrace from 10.11.5.24 to 192.168.2.2 via group 225.2.1.1, 255 hops at most, press

CTRL_C to break.

Querying full reverse path...

Hop Incoming address Outgoing address Protocol Time Fwd code

0 5.1.1.2 192.168.2.1 PIM 50 s NO_ERROR

-1 4.1.1.2 5.1.1.1 PIM 40 s NO_ERROR

-2 3.1.1.2 4.1.1.1 PIM 60 s NO_ERROR

-3 2.1.1.2 3.1.1.1 PIM 55 s NO_ERROR

-4 10.11.5.1 2.1.1.1 PIM 30 s NO_ERROR

Table 12 Command output

Field	Description
Hop	Number of the hop. 0 represents the last hop, -1 represents the hop before the last hop, and so on.
Incoming address	Incoming interface of the multicast data.
Outgoing address	Outgoing interface of the multicast data.
Protocol	Multicast routing protocol used between this device and the previous-hop device: · PIM. · PIM(STATIC)—PIM using a static multicast route. · PIM(MBGP)—PIM using an MBGP route. · PIM(ASSERT)—PIM in a state created by Assert processing.
Time	Length of time used to transmit an mtrace message between this device and the previous-hop device, in seconds.
Fwd code	Forwarding code or error code: · NO_ERROR—No error. · WRONG_IF—The interface on which the mtrace message arrives is not in the outgoing interface list of the multicast data. · PRUNE_SENT—This device has sent a prune message to the upstream device. · PRUNE_RCVD—This device has received a prune message from the downstream device. · SCOPED—A multicast border is configured on the incoming interface or outgoing interface of the multicast data. · NO_ROUTE—This device does not have any route for the source or the RP. · WRONG_LAST_HOP—This device is not the proper last-hop device. · REACHED_RP—This device is the RP for the (*, G) multicast data. · RPF_IF—The mtrace message arrived on the expected RPF interface for the multicast data. · NO_MULTICAST—The mtrace message arrived on an interface that is not enabled with IP multicast. · NO_SPACE—No space is available for inserting a response data block in the packet.

# Use mtrace1 to trace the path along which multicast data of group 225.2.1.1 travels from source 10.11.5.24 to destination 192.168.2.2 and display detailed mtrace information.

<Sysname> mtrace v1 10.11.5.24 225.2.1.1 destination 192.168.2.2 verbose

Mtrace from 10.11.5.24 to 192.168.2.2 via group 225.2.1.1, 255 hops at most, use query

ID 12345, client port 50001, press CTRL_C to break.

Querying full reverse path..........

Switching to hop-by-hop mode, Current hops: 2

0: Incoming interface address: 4.1.1.2

Outgoing interface address: 5.1.1.1

Upstream router address: 4.1.1.1

Input multicast packets: 111

Output multicast packets: 111

Forwarded packets for the (S, G) pair: 22

Multicast protocol in use: PIM

Multicast TTL threshold: 1

Forwarding code: NO_ERROR

Time used (s): 50

-1: Incoming interface address: 3.1.1.2

Outgoing interface address: 4.1.1.1

Upstream router address: 3.1.1.1

Input multicast packets: 111

Output multicast packets: 111

Forwarded Packets for the (S, G) pair: 22

Multicast protocol in use: PIM

Multicast TTL threshold: 1

Forwarding code: NO_ERROR

Time used (s): 50

Table 13 Command output

Field	Description
n	Number of the hop. 0 represents the last hop, -1 represents the hop before the last hop, and so on.
Incoming interface address	Incoming interface of the multicast data.
Outgoing interface address	Outgoing interface of the multicast data.
Upstream router address	IP address of the upstream device.
Input multicast packets	Statistics for packets received on the incoming interface of the multicast data.
Output multicast packets	Statistics for packets forwarded through the outgoing interface of the multicast data.
Forwarded packets for the (S, G) pair	Statistics for forwarded (S, G) packets.
Multicast protocol in use	Multicast routing protocol used on the traced path: · PIM. · PIM(STATIC)—PIM using a static multicast route. · PIM(MBGP)—PIM using an MBGP route. · PIM(ASSERT)—PIM in a state created by Assert processing.
Multicast TTL threshold	Maximum number of hops to be traced on the interface.
Forwarding code	Forwarding code or error code: · NO_ERROR—No error. · WRONG_IF—The interface on which the mtrace message arrives is not in the outgoing interface list of the multicast data. · PRUNE_SENT—This device has sent a prune message to the upstream device. · PRUNE_RCVD—This device has received a prune message from the downstream device. · SCOPED—A multicast border is configured on the incoming interface or outgoing interface of the multicast data. · NO_ROUTE—This device does not have any route for the source or the RP. · WRONG_LAST_HOP—This device is not the proper last-hop device. · REACHED_RP—This device is the RP for the (*, G) multicast data. · RPF_IF—The mtrace message arrived on the expected RPF interface for the multicast data. · NO_MULTICAST—The mtrace message arrived on an interface that is not enabled with IP multicast. · NO_SPACE—No space is available for inserting a response data block in the packet.
Time used (s)	Length of time for transmitting the mtrace message from the previous-hop device to this device.

mtrace v2

Use mtrace v2 to trace a multicast path through mtrace2.

Syntax

mtrace v2 [ vpn-instance vpn-instance-name ] { source-address | group-address } * [ destination address | port number | wait-time time | max-hop count ] * [ verbose ]

Views

Any view

Predefined user roles

network-admin

Parameters

source-address: Specifies a multicast source by its IP address.

group-address: Specifies a multicast group by its IP address, in the range of 224.0.1.0 to 239.255.255.255.

destination address: Specifies the destination address of mtrace. The default destination address is 224.0.0.2.

port number: Specifies a UDP port number for mtrace2, in the range of 1024 to 49151. The default value is 10240.

wait-time time: Specifies the length of time that the client waits for a Reply message. The value range for the time argument is 1 to 65535 seconds and the default value is 10 seconds. If the client does not receive a Reply message within the waiting time, the client initiates a hop-by-hop mtrace.

max-hop count: Specifies the maximum number of the hops to be traced. The value range for the count argument is 1 to 255 and the default value is 255. If the maximum number of hops is reached on a device, the device directly sends an mtrace2 Reply message to the client and the mtrace is terminated.

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

Usage guidelines

To perform a non-group-specific mtrace, specify a multicast source and a destination. The mtrace starts from the destination and ends with the device directly connected to the multicast source.

To perform a non-source-specific mtrace, specify a multicast group and a destination. The mtrace starts from the destination and ends at the RP associated with the multicast group.

An mtrace process stops if the maximum number of the hops to be traced is reached.

If the client does not receive a Reply message within the waiting time, the client initiates a hop-by-hop mtrace to determine which device on the path encountered an error. It sends a Query message with the hops field set to 1 and waits for a Reply message. If the client receives a Reply message within the waiting time, it sends a Query message with the hops field value increased by 1 and waits for a Reply message. This process continues until the client does not receive a Reply message within the waiting time any more.

Examples

# Use mtrace2 to trace the path along which multicast data of group 225.2.1.1 travels from source 10.11.5.24 to destination 192.168.2.2 and display brief mtrace information.

<Sysname> mtrace v2 10.11.5.24 225.2.1.1 destination 192.168.2.2

Mtrace from 10.11.5.24 to 192.168.2.2 via group 225.2.1.1, 255 hops at most, press

CTRL_C to break.

Querying full reverse path...

Hop Incoming address Outgoing address Protocol Time Fwd code

0 5.1.1.2 192.168.2.1 PIM-SM(OSPF) 50 s NO_ERROR

-1 4.1.1.2 5.1.1.1 PIM-SM(OSPF) 40 s NO_ERROR

-2 3.1.1.2 4.1.1.1 PIM-SM(OSPF) 60 s NO_ERROR

-3 2.1.1.2 3.1.1.1 PIM-SM(OSPF) 55 s NO_ERROR

-4 10.11.5.1 2.1.1.1 PIM-SM(OSPF) 30 s NO_ERROR

Table 14 Command output

Field	Description
Hop	Number of the hop. 0 represents the last hop, -1 represents the hop before the last hop, and so on.
Incoming address	Incoming interface of the multicast data.
Outgoing address	Outgoing interface of the multicast data.
Protocol	Multicast routing protocol used between this device and the previous-hop device: · PIM-SM. · PIM-DM. Unicast routing protocol used between this device and the previous-hop device: · LOCAL—Direct route. · STATIC ROUTE—Static route. · RIP. · ISIS. · OSPF. · BGP.
Time	Length of time used to transmit an mtrace message between this device and the previous-hop device, in seconds.
Fwd code	Forwarding code or error code: · NO_ERROR—No error. · WRONG_IF—The interface on which the mtrace message arrives is not in the outgoing interface list of the multicast data. · PRUNE_SENT—This device has sent a prune message to the upstream device. · PRUNE_RCVD—This device has received a prune message from the downstream device. · SCOPED—A multicast border is configured on the incoming interface or outgoing interface of the multicast data. · NO_ROUTE—This device does not have any route for the source or the RP. · WRONG_LAST_HOP—This device is not the proper last-hop device. · REACHED_RP—This device is the RP for the (*, G) multicast data. · RPF_IF—The mtrace message arrived on the expected RPF interface for the multicast data. · NO_MULTICAST—The mtrace message arrived on an interface that is not enabled with IP multicast. · NO_SPACE—No space is available for inserting a response data block in the packet.

# Use mtrace2 to trace the path along which multicast data of group 225.2.1.1 travels from source 10.11.5.24 to destination 192.168.2.2 and display detailed mtrace information.

<Sysname> mtrace v2 10.11.5.24 225.2.1.1 destination 192.168.2.2 verbose

Mtrace from 10.11.5.24 to 192.168.2.2 via group 225.2.1.1, 255 hops at most, use query ID 12345, client port 50001, press CTRL_C to break.

Querying full reverse path...

0: Incoming interface address: 4.1.1.2

Outgoing interface address: 5.1.1.1

Upstream router address: 4.1.1.1

Input multicast packets: 111

Output multicast packets: 111

Forwarded packets for the (S, G) pair: 22

Multicast protocol in use: PIM-SM

Unicast protocol in use: OSPF

Multicast TTL threshold: 1

Forwarding code: NO_ERROR

Time used (s): 50

-1: Incoming interface address: 3.1.1.2

Outgoing interface address: 4.1.1.1

Upstream router address: 3.1.1.1

Input multicast packets: 111

Output multicast packets: 111

Forwarded packets for the (S, G) pair: 22

Multicast protocol in use: PIM-SM

Unicast protocol in use: OSPF

Multicast TTL threshold: 1

Forwarding code: NO_ERROR

Time used (s): 50

Table 15 Command output

Field	Description
n	Number of the hop. 0 represents the last hop, -1 represents the hop before the last hop, and so on.
Incoming interface address	Incoming interface of the multicast data.
Outgoing interface address	Outgoing interface of the multicast data.
Upstream router address	IP address of the upstream device.
Input multicast packets	Statistics of packets received on the incoming interface of the multicast data.
Output multicast packets	Statistics of packets forwarded through the outgoing interface of the multicast data.
Forwarded packets for the (S, G) pair	Statistics of forwarded (S, G) packets.
Multicast protocol in use	Multicast routing protocol running on the incoming interface of the multicast data.
Unicast protocol in use	Unicast routing protocol running on the incoming interface of the multicast data.
Multicast TTL threshold	Maximum number of hops to be traced on the interface.
Forwarding code	Forwarding code or error code: · NO_ERROR—No error. · WRONG_IF—The interface on which the mtrace message arrives is not in the outgoing interface list of the multicast data. · PRUNE_SENT—This device has sent a prune message to the upstream device. · PRUNE_RCVD—This device has received a prune message from the downstream device. · SCOPED—A multicast border is configured on the incoming interface or outgoing interface of the multicast data. · NO_ROUTE—This device does not have any route for the source or the RP. · WRONG_LAST_HOP—This device is not the proper last-hop device. · REACHED_RP—This device is the RP for the (*, G) multicast data. · RPF_IF—The mtrace message arrived on the expected RPF interface for the multicast data. · NO_MULTICAST—The mtrace message arrived on an interface that is not enabled with IP multicast. · NO_SPACE—No space is available for inserting a response data block in the packet.
Time used (s)	Length of time for transmitting the mtrace message from the previous-hop device to this device.

Related commands

mtrace-service port

multicast boundary

Use multicast boundary to configure a multicast forwarding boundary.

Use undo multicast boundary to delete a multicast forwarding boundary.

Syntax

multicast boundary group-address { mask-length | mask }

undo multicast boundary { group-address { mask-length | mask } | all }

Default

No multicast forwarding boundaries are configured on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.

mask-length: Specifies an address mask length in the range of 4 to 32.

mask: Specifies an address mask.

all: Specifies all forwarding boundaries configured on the interface.

Usage guidelines

A multicast forwarding boundary sets the boundary condition for the multicast groups in the specified address range. If the destination address of a multicast packet matches the set boundary condition, the packet is not forwarded.

You can configure an interface as a multicast forwarding boundary for different multicast group ranges by executing this command multiple times on the interface.

You do not need to enable IP multicast routing before you execute this command.

Assume that Set A and Set B are multicast forwarding boundary sets with different address ranges, and B is a subset of A. A takes effect on the interface no matter whether A is configured earlier or later than B.

Examples

# Configure GigabitEthernet 0/0/1 as the forwarding boundary of multicast groups in the range of 239.2.0.0/16.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] multicast boundary 239.2.0.0 16

Related commands

display multicast boundary

multicast flow-ucmp unicast reserve-bandwidth

Use multicast flow-ucmp unicast reserve-bandwidth to set the IPv4 unicast reserved bandwidth percentage on an interface.

Use undo multicast flow-ucmp unicast reserve-bandwidth to restore the default.

Syntax

multicast flow-ucmp unicast reserve-bandwidth percentage

undo multicast flow-ucmp unicast reserve-bandwidth

Default

The IPv4 unicast reserved bandwidth percentage is not set on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

percentage: Specifies the IPv4 unicast reserved bandwidth percentage in the range of 1 to 100.

Usage guidelines

For this command to take effect, you must use the load-splitting command to configure the multicast load-splitting mode.

Example

# Set the IPv4 unicast reserved bandwidth percentage to 50% on GigabitEthernet 0/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] multicast flow-ucmp unicast reserve-bandwidth 50

Related commands

flow-ucmp unicast reserve-bandwidth

multicast forwarding-table cache-unknown per-entry

Use multicast forwarding-table cache-unknown per-entry to set the maximum number of unknown multicast packets that can be cached for an (S, G) entry.

Use undo multicast forwarding-table cache-unknown per-entry to restore the default.

Syntax

multicast forwarding-table cache-unknown per-entry per-entry-limit

undo multicast forwarding-table cache-unknown per-entry

Default

The device can cache only one unknown multicast packet for an (S, G) entry.

Views

System view

Predefined user roles

network-admin

Parameters

per-entry-limit: Specifies the maximum number of unknown multicast packets that can be cached for an (S, G) entry. The value range for this argument is 0 to 256. If you set the value to 0, the device cannot cache unknown multicast packets.

Examples

# Set the maximum number to 20 for unknown multicast packets that can be cached for an (S, G) entry.

<Sysname> system-view

[Sysname] multicast forwarding-table cache-unknown per-entry 20

Related commands

multicast forwarding-table cache-unknown total

Use multicast forwarding-table cache-unknown total to set the maximum number of all unknown multicast packets that can be cached.

Use undo multicast forwarding-table cache-unknown total to restore the default.

Syntax

multicast forwarding-table cache-unknown total total-limit

undo multicast forwarding-table cache-unknown total

Default

The device can cache 1024 unknown multicast packets in total.

Views

System view

Predefined user roles

network-admin

Parameters

total-limit: Specifies the maximum number of all unknown multicast packets that can be cached. The value range for this argument is 0 to 65535. If you set the value to 0, the device cannot cache unknown multicast packets.

Usage guidelines

As a best practice, set the value in this command to be far greater than the value set in the multicast forwarding-table cache-unknown per-entry command.

Examples

# Set the maximum number to 10000 for all unknown multicast packets that can be cached.

<Sysname> system-view

[Sysname] multicast forwarding-table cache-unknown total 10000

Related commands

multicast forwarding-table cache-unknown per-entry

multicast routing

Use multicast routing to enable IP multicast routing and enter MRIB view.

Use undo multicast routing to disable IP multicast routing.

Syntax

multicast routing [ vpn-instance vpn-instance-name ]

undo multicast routing [ vpn-instance vpn-instance-name ]

Default

IP multicast routing is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

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 IP multicast routing on the public network.

Usage guidelines

Other Layer 3 multicast commands take effect only when IP multicast routing is enabled on the public network or for a VPN instance.

The device does not forward multicast packets before IP multicast routing is enabled.

Examples

# Enable IP multicast routing on the public network, and enter MRIB view.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib]

# Enable IP multicast routing for the VPN instance mvpn, and enter MRIB view.

<Sysname> system-view

[Sysname] multicast routing vpn-instance mvpn

[Sysname-mrib-mvpn]

reset multicast fast-forwarding cache

Use reset multicast fast-forwarding cache to clear multicast fast forwarding entries.

Syntax

reset multicast [ vpn-instance vpn-instance-name ] fast-forwarding cache { { source-address | group-address } * | all } [ slot slot-number ]

Views

User view

Predefined user roles

network-admin

Parameters

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 multicast fast forwarding entries on the public network.

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command clears multicast fast forwarding entries for the MPU.

all: Specifies all multicast fast forwarding entries.

Examples

# Clear all multicast fast forwarding entries on the public network.

<Sysname> reset multicast fast-forwarding cache all

# Clear the multicast fast forwarding entry for multicast source and group (20.0.0.2, 225.0.0.2) on the public network.

<Sysname> reset multicast fast-forwarding cache 20.0.0.2 225.0.0.2

Related commands

display multicast fast-forwarding cache

reset multicast forwarding event

Use reset multicast forwarding event to clear statistics for multicast forwarding events.

Syntax

reset multicast [ vpn-instance vpn-instance-name ] forwarding event

Views

User view

Predefined user roles

network-admin

Parameters

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 statistics for the multicast forwarding events on the public network.

Examples

# Clear statistics for multicast forwarding events on the public network.

<Sysname> reset multicast forwarding event

Related commands

display multicast forwarding event

reset multicast forwarding-table

Use reset multicast forwarding-table to clear multicast forwarding entries.

Syntax

reset multicast [ vpn-instance vpn-instance-name ] forwarding-table { { source-address [ mask { mask-length | mask } ] | group-address [ mask { mask-length | mask } ] | incoming-interface { interface-type interface-number } } * | all }

Views

User view

Predefined user roles

network-admin

Parameters

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.

mask: Specifies an address mask. The default is 255.255.255.255.

incoming-interface: Specifies the multicast forwarding entries that contain the specified incoming interface.

interface-type interface-number: Specifies an incoming interface by its type and number.

all: Specifies all multicast forwarding entries.

Usage guidelines

When you clear a multicast forwarding entry, the associated multicast routing entry is also cleared.

Examples

# Clear multicast forwarding entries for multicast group 225.5.4.3 on the public network.

<Sysname> reset multicast forwarding-table 225.5.4.3

Related commands

display multicast forwarding-table

reset multicast routing-table

Use reset multicast routing-table to clear multicast routing entries.

Syntax

reset multicast [ vpn-instance vpn-instance-name ] routing-table { { source-address [ mask { mask-length | mask } ] | group-address [ mask { mask | mask-length } ] | incoming-interface interface-type interface-number } * | all }

Views

User view

Predefined user roles

network-admin

Parameters

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.

mask: Specifies an address mask. The default is 255.255.255.255.

incoming-interface: Specifies the routing entries that contain the specified incoming interface.

interface-type interface-number: Specifies an incoming interface by its type and number.

all: Specifies all multicast routing entries.

Usage guidelines

When you clear a multicast routing entry, the associated multicast forwarding entry is also cleared.

Examples

# Clear multicast routing entries for multicast group 225.5.4.3 on the public network.

<Sysname> reset multicast routing-table 225.5.4.3

Related commands

display multicast routing-table

09-Multicast Command Reference

acl (IPv4 multicast flow policy view)

bandwidth (IPv4 multicast flow policy view)

display mrib interface

display multicast forwarding event

Operating mechanism

reset multicast fast-forwarding cache

reset multicast routing-table

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