display igmp explicit-tracking

Function

The display igmp explicit-tracking command displays explicit (S, G) entries of IGMPv3 hosts, that is, (S, G) entries that IGMPv3 hosts have joined in Include mode.

Format

display igmp [ vpn-instance vpn-instance-name | all-instance ] explicit-tracking [ interface interface-type interface-number [ host-address host-address | group group-address source source-address ] ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about IGMPv3 hosts that join a specified multicast source in INCLUDE mode in a specified VPN instance.	The value must be an existing VPN instance name.
all-instance	Displays information about IGMPv3 hosts that join a specified multicast source in INCLUDE mode in all instances.	-
interface interface-type interface-number	Displays information about IGMPv3 hosts that join a specified multicast source in INCLUDE mode on a specified interface.	-
host-address host-address	Specifies the address of an IGMP host.	The address is in dotted decimal notation.
group group-address	Specifies the address of a multicast group.	The value ranges from 224.0.1.0 to 239.255.255.255, in dotted decimal notation.
source source-address	Specifies the address of a multicast source.	The address is in dotted decimal notation.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can use this command to view information about IGMPv3 hosts that have dynamically joined specified sources/groups in Include mode.

Example

# Display information about the IGMPv3 hosts that have joined specified source/group in Include mode.

<HUAWEI> display igmp explicit-tracking
Explicit-tracking information
 Total 1 host, 2 entries

 Vlanif100(192.168.0.12)
  0001.Host: 192.168.0.28
        Uptime: 00:02:47
        Expires: 00:01:33
        (S, G) List:
          Group: 232.1.1.1
              Source: 10.12.12.12
                Uptime: 00:02:47
                Time since last refresh: 00:02:47
              Source: 10.13.13.13
                Uptime: 00:02:47
                Time since last refresh: 00:02:47

**Table 1** Description of the **display igmp explicit-tracking** command output
Item	Description
Explicit-tracking information	IGMP host information.
Total 1 host, 2 entries	There is one IGMP host and two (S, G) entries.
Vlanif100(192.168.0.12)	Interface connected to IGMPv3 hosts that have joined a group with source addresses specified in Include mode.
Host	IGMP host address.
Uptime	Running time since an IGMP host joins a multicast group. The time format is as follows: If the time is shorter than or equal to 24 hours, the format is hours:minutes:seconds. If the time is longer than 24 hours but shorter than or equal to one week, the format is days:hours. If the time is longer than one week, the format is weeks:days.
Expires	Amount of time left before an IGMP host times out. After the IGMP host expires, it is deleted from the IGMP member host list. The time format is as follows: If the time is shorter than or equal to 24 hours, the format is hours:minutes:seconds. If the time is longer than 24 hours but shorter than or equal to one week, the format is days:hours. If the time is longer than one week, the format is weeks:days.
(S, G) List	List of multicast sources and groups an IGMP host has joined.
Group	Multicast group address.
Source	Multicast source address.
Time since last refresh	Amount of time since an IGMP host last joins a group. The time format is as follows: If the time is shorter than or equal to 24 hours, the format is hours:minutes:seconds. If the time is longer than 24 hours but shorter than or equal to one week, the format is days:hours. If the time is longer than one week, the format is weeks:days.