display igmp-snooping port-info

Function

The display igmp-snooping port-info command displays information about group member ports.

Format

display igmp-snooping port-info [ vsi vsi-name [ group-address group-address ] ] [ verbose ]

Parameters

Parameter	Description	Value
vsi vsi-name	Displays group memberships in a specified VSI.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
group-address group-address	Displays member ports of a specified multicast group in a VSI. group-address specifies the IP address of a multicast group.	The value ranges from 224.0.1.0 to 239.255.255.255, in dotted decimal notation.
verbose	Displays detailed information about member ports.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

After IGMP snooping is configured in a VSI on a switch, the IGMP snooping module maintains a Layer 2 multicast forwarding table by snooping the IGMP messages exchanged between the upstream router and downstream hosts. The display igmp-snooping port-info command shows member interfaces in the Layer 2 multicast forwarding table. According to the command output, you can know which downlink interfaces have multicast users connected, and control multicast services conveniently.

Precautions

Only multicast member ports in Up state are displayed in the command output.

Example

# Display information about group member ports in the VSI company1.

<HUAWEI> display igmp-snooping port-info vsi company1
-----------------------------------------------------------------------
                     (Source, Group)  Port                          Flag
  Flag: S:Static     D:Dynamic     M: Ssm-mapping                      
 -----------------------------------------------------------------------
 VSI company1, 3 Entry(s)                                                   
                      (*, 225.0.0.1)  GE0/0/11(VID:1001)            -D- 
                                                1 port(s)               
                      (*, 225.0.0.2)  PW(10.1.1.1/100)             -D- 
                                                1 port(s)               
                      (*, 225.0.0.3)  GE0/0/13                      -D- 
                                                1 port(s)               
 -----------------------------------------------------------------------

**Table 1** Description of the **display igmp-snooping port-info** command output
Item	Description
(Source, Group)	(S, G) entry, specifying a multicast source and multicast group.
Port	Outbound port name. Different ports in the command output are described as follows: GE0/0/11 (VID:1001) indicates that the AC-side interface is VLANIF 1001, and the group member port is GE0/0/11 in VLAN 1001. PW (10.1.1.1/100) indicates that the member port is a PW-side interface. 10.1.1.1 is the IP address of the remote peer, and 100 is the VC ID of the remote peer. GE0/0/13 indicates that the AC-side interface is GE0/0/13 working in Layer 3 mode, and the group member port is GE0/0/13.
Flag	Type of an outbound port. S: static member port D: dynamic member port M: member port established through SSM mapping
VSI company1, 3 Entry(s)	Number of multicast entries in VSI company 1.