display igmp-snooping port-info

Function

The display igmp-snooping port-info command displays information about member ports on the router, including static member ports, SSM mapping-enabled ports, and dynamic member ports.

Format

display igmp-snooping port-info [ { vlan vlan-id | vsi vsi-name } [ group-address group-address ] ] [ verbose ]

Parameters

Parameter	Description	Value
vlan vlan-id	Displays information about multicast interfaces in a specified VLAN.	The vlan-id value is an integer ranging from 1 to 4094.
vsi vsi-name	Displays information about member ports 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 information about interfaces related to a specified multicast group in a VSI.	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

Task Name and Operations

Task Name	Operations
l2mc	read

Usage Guidelines

Usage Scenario

The command has output displayed only after IGMP snooping is enabled globally and in a VLAN or VSI.

When using this command to view information about multicast groups in a VSI, you can view only the PW interfaces and sub-interfaces in the multicast group. If a VLANIF interface is bound to a VSI, you cannot view information about the VLANIF interface. To view information about the VLANIF interface, you need to view information about the interfaces in the VLAN. Information about member interfaces is displayed only when the member interfaces are in Up state.

The display igmp-snooping port info command displays information about all multicast interfaces.
The display igmp-snooping port info vlan command displays information about all multicast interfaces in a specified VLAN.
The display igmp-snooping port info vsi command displays information about all multicast interfaces in a specified VSI.
The display igmp-snooping port info vlan group-address command displays information about the interface of a specified multicast group in a VLAN.
The display igmp-snooping port info vsi group-address command displays information about interfaces in a specified multicast group in a VSI.

Example

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

# Display detailed information about the multicast group member port list in VSI v1.

<HUAWEI> display igmp-snooping port-info vsi v1 verbose
The port information of Group 226.0.0.1 on VSI v1, VLAN 6:
  Time of this group has been up : 01:23:25

  The port information of (*, 226.0.0.1):
    Time of this source has been up : 01:23:25
    Port Table on this source(*):
    Source flags: IGMP
    List of ports in include mode :
      No.1
        Port name : GigabitEthernet0/1/2.1(PE:6)
        Time of this port has been up as a host-port : 01:23:25
        Remain time of port expire as dynamic host-port : --
        Host-port flags : Static    There are 1 port(s) in include mode.

# Display information about the multicast group member port list in VSI v1 under unicast MAC-copy mode.

<HUAWEI> display igmp-snooping port-info vsi v1
 -----------------------------------------------------------------------------------
  Flag: S:Static     D:Dynamic     M:Ssm-mapping
        A:Active     P:Protocol           
                     (Source, Group)  Port                                      Flag
 -----------------------------------------------------------------------------------
 VSI v1, VLAN 6, 1 Entry(s)
                      (*, 226.0.0.1)                                            P--
                                      GE0/1/2.1(PE:6)                           S--
                                                        1 port(s) include
 -----------------------------------------------------------------------------------

# Display information about the multicast group member port list in VLAN 10.

<HUAWEI> display igmp-snooping port-info vlan 10
 -----------------------------------------------------------------------------------
  Flag: S:Static     D:Dynamic     M:Ssm-mapping
        A:Active     P:Protocol    F:Fast-channel
                     (Source, Group)  Port                                      Flag
 -----------------------------------------------------------------------------------
 VLAN 10, 1 Entry(s)
                     (*, 224.0.1.22)                                            P--
                                      GE0/1/0                                   -D-
                                                        1 port(s) include
 -----------------------------------------------------------------------------------

**Table 1** Description of the **display igmp-snooping port-info** command output
Item	Description
Group	Multicast group address.
Port	Information about member ports of the multicast group.
Port Table on this source(*)	Port table on the multicast source (*).
Port name	Name of a port.
Flag	Entry type: P: entries generated based on protocol packets or statically configured. A: entries triggered by multicast data traffic. F: entries generated after fast channel configuration. Port type: S: static member ports. D: dynamic member ports. M: SSM mapping-enabled ports.
Time of this group has been up	Time of the multicast group in UP status.
Time of this source has been up	Time of the multicast source in UP status.
Time of this port has been up as a host-port	Time of the member port in UP status.
Source	Multicast source address.
Source flags	Flags of multicast sources.
List of ports in include mode	Port list.
Remain time of port expire as dynamic host-port	Time remaining of a dynamic host port.
Host-port flags	Member port flag.