display multicast ipv6 forwarding-table

Function

The display multicast ipv6 forwarding-table command displays an IPv6 multicast forwarding table.

Format

display multicast ipv6 [ vpn-instance vpn-instance-name | all-instance ] forwarding-table [ slot slot-id | ipv6-source-address [ ipv6-source-mask-length ] | ipv6-group-address [ ipv6-group-mask-length ] | verbose | incoming-interface { { interface-type interface-number | interface-name } | register } | outgoing-interface { include | exclude | match } { { interface-type interface-number | interface-name } | register | none } | statistics ] ^*

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Specifies the name of a VPN instance.	The value is a string of 1 to 31 characters.
all-instance	Indicates all VPN instances.	-
slot slot-id	Displays the number of the slot where the interface board resides.	-
ipv6-source-address	Specifies the IPv6 address of a multicast source.	The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.
ipv6-source-mask-length	Specifies the mask length of the multicast source address.	The value is an integer that ranges from 0 to 128.
ipv6-group-address	Specifies the IPv6 address of a multicast group.	The value ranges from FF00::0 to FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF.
ipv6-group-mask-length	Specifies the mask length of a multicast group address.	The value is an integer that ranges from 8 to 128.
verbose	Display detail information.	-
incoming-interface	Indicates the incoming interface of an IPv6 multicast forwarding entry.	-
interface-type	Specifies the type of an interface.	-
interface-number	Specifies the number of an interface.	-
register	Indicates the register interface of PIM-SM.	-
outgoing-interface	Indicates the outgoing interface of an IPv6 multicast forwarding entry.	-
include	Indicates that the downstream interface list contains the route forwarding entries of a specified interface.	-
exclude	Indicates that the downstream interface list does not contain the route forwarding entries of a specified interface.	-
match	Indicates that the downstream interface list matches the route forwarding entries of a specified interface.	The downstream interface list contains only one eligible interface. After match is configured, the route forwarding entries of a null downstream interface list are displayed if the outgoing interface is not specified.
none	Displays the (S, G) entry without a downstream interface.	-
statistics	Displays the statistics of the multicast forwarding table.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
forwarding	read

Usage Guidelines

Usage Scenario

The display multicast ipv6 forwarding-table command is used to view the multicast forwarding table on the main control board or an interface board. If no slot number is specified in this command, the multicast forwarding table on the main control board is displayed.

Configuration Impact

Running the display multicast ipv6 forwarding-table command consumes resources on the main control board or interface board.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display all IPv6 multicast forwarding entries.

<HUAWEI> display multicast ipv6 forwarding-table
IPv6 Multicast Forwarding Table
Total 1 entry, 1 matched

1.(7000::5, 2001:db8::1)
     MID: 864, Flags: 1
     Uptime: 00:00:10, Timeout in: 00:00:00
     Incoming interface: GigabitEthernet0/1/1     Activetime:02:35:57
     List of 1 outgoing interfaces:
       1: GigabitEthernet0/1/0
     Matched 0 packets(0 bytes), Wrong If 0 packets
     Forwarded 0 packets(0 bytes)

# Display the IPv6 multicast forwarding entries with the VPN instance of vrf1 by slot-id

<R27> display multicast ipv6 vpn-instance vrf1 forwarding-table 2001:db8::1 slot 1
Multicast Forwarding Table of VPN-Instance: vrf1                                                                                    
Total 500 entry                                                                                                                    
                                                                                                                                    
1.(7000::5, 2001:db8::1)                                                                                                           
     MID: 715, Flags: 1                                                                                                             
     Incoming interface: GigabitEthernet0/1/1.1                                                                                    
     List of 1 outgoing interfaces:                                                                                                 
                                                                                                                                    
       1: pseudo (sd 0 si 0 bsl 64)                                                                
         Activetime: 00:12:24                                                                                                       
Total 1 entries matched

# Display the IPv6 multicast forwarding entries with the VPN instance of vrf1.

<HUAWEI> display multicast ipv6 vpn-instance vrf1  forwarding-table 2001:db8::1
Multicast Forwarding Table of VPN-Instance: vrf1 
Total 500 entry, 1 matched
1.(7000::5, 2001:db8::1)
     MID: 8453, Flags: 1
     Uptime: 14:59:33, Timeout in: 00:00:00
     Incoming interface: GigabitEthernet0/1/1.1
     List of 1 outgoing interfaces:                                                                                                 
       1: pseudo (sd 0 si 0 bsl 64)                                                                
         Activetime:00:10:36                                                                                                        
     Matched rate: 83 packets/sec, 73184 bits/sec                                                                                   
     Matched 151977 packets(16717470 bytes), Wrong If 0 packets                                                                     
     Forwarded 51265 packets(5639150 bytes)

# Display the IPv6 multicast forwarding entries with the VPN instance of NG MVPN.

<HUAWEI> display multicast ipv6 vpn-instance NG_MVPN forwarding-table
Multicast Forwarding Table of VPN-Instance: NG_MVPN
Total 500 entry, 500 matched
1.(7000::5, 2001:db8::1)
     MID: 8453, Flags: 1
     Uptime: 14:59:33, Timeout in: 00:00:00
     Incoming interface: pseudo
     Upstream neighbor: 192.168.1.1
     List of 1 outgoing interfaces:
       1: GigabitEthernet0/1/1
         Activetime: 14:59:33
       2: GigabitEthernet0/1/0
         Activetime: 14:59:33
     Matched 0 packets(0 bytes), Wrong If 0 packets
     Forwarded 0 packets(0 bytes)

**Table 1** Description of the **display multicast ipv6 forwarding-table** command output
Item	Description
IPv6 Multicast Forwarding Table	IPv6 multicast forwarding table.
Multicast Forwarding Table of VPN-Instance	Multicast Forwarding Table of VPN-Instance.
Total 1 entry, 1 matched	Total forwarding entries and total eligible forwarding entries.
1	Number of the (S, G) entry.
Timeout in	Remaining time of the (S, G) entry.
Incoming interface	Incoming interface of the (S, G) entry.
List of 1 outgoing interfaces	Outgoing interface list.
1: GigabitEthernet0/1/0	Sequence number and name of a downstream interface.
Matched 0 packets(0 bytes), Wrong If 0 packets	Number of multicast packets and bytes that match the (S, G) entry and number of packets with incorrect upstream interfaces.
Matched rate	Matched rate.
Forwarded 0 packets(0 bytes)	Number of packets and bytes forwarded by the (S, G) entry.
Upstream neighbor	Upstream traffic neighbor.
Flags	Status flag of the (S, G) entry. If the multicast forwarding table on the main control board is displayed: 1: indicates multicast forwarding entries have been delivered to interface boards. 0: indicates multicast forwarding entries have not been delivered to interface boards. If the multicast forwarding table on an interface board is displayed: 1: indicates that the multicast traffic statistics require attention. 0: indicates that the multicast traffic statistics are ignored.
(7000::5, 2001:db8::1)	(S, G) entry in the multicast routing table.
MID	Unique multicast forwarding entry in the MFIB table, used to rapidly search the multicast forwarding table.
Uptime	Period during which the (S, G) entry exists.
Activetime	Time since the outgoing interface went Up.