display igmp group ssm-mapping

Function

The display igmp group ssm-mapping command displays information about the multicast groups configured with SSM mapping rules configured through the ssm-mapping command.

Format

display igmp [ vpn-instance vpn-instance-name | all-instance ] group [ group-address | interface interface-type interface-number ] ^* ssm-mapping [ verbose ]

display igmp [ vpn-instance vpn-instance-name | all-instance ] group ssm-mapping [ interface interface-type interface-number ] entry-number

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Specifies a VPN instance. vpn-instance-name specifies the name of the VPN instance.	The name is a string of 1 to 31 characters.
all-instance	Indicates all the instances.	-
group-address	Indicates the multicast group address in dotted decimal notation. It is used to specify a multicast group and display SSM mapping of the multicast group.	The address is in dotted decimal notation. The value ranges from 224.0.0.0 to 239.255.255.255.
interface interface-type interface-number	Displays information about the multicast groups involved in SSM mapping on a specified interface. interface-type interface-number: specifies the interface type and the interface number.	-
verbose	Displays detailed information about the multicast groups involved in SSM mapping.	-
entry-number	Displays statistics about IGMP multicast groups that hosts dynamically join.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

When the display igmp group ssm-mapping command is used, the following situations occur:

If neither vpn-instance nor all-instance is specified, only information about the public network instance is displayed.
If interface interface-type interface-number is specified, only information about the multicast groups involved in SSM mapping on the interface is displayed.
If group-address is specified, only information about SSM mapping of this group is displayed.
If verbose is specified, various status parameters of the multicast group configured with SSM mapping are displayed.
If entry-number is specified, statistics about IGMP multicast groups that hosts dynamically join are displayed.

Example

# Display detailed information about all multicast groups configured with SSM mapping in the public network instance.

<sysname> display igmp group ssm-mapping
IGMP SSM mapping interface group report information of VPN-Instance: public net 
 GigabitEthernet0/0/0 (10.133.4.2):
  Total 1 IGMP SSM-Mapping Group reported
   Group Address   Last Reporter   Uptime      Expires
   232.1.1.1       10.133.4.1     00:01:44    00:00:26

# Display detailed information about all multicast groups configured with SSM mapping.

<sysname> display igmp group ssm-mapping verbose
Interface group report information of VPN-Instance: public net
 Limited entry of this VPN-Instance: -
 GigabitEthernet0/0/0(10.133.133.1):
  Total entry on this interface: 1
  Limited entries on this interface: -
  Total 1 IGMP SSM-Mapping Group reported
   Group: 232.0.0.1
     Uptime: 00:00:15
     Expires: 00:01:55
     Last reporter: 192.168.1.62
     Last-member-query-counter: 0
     Last-member-query-timer-expiry: off
     Group mode: exclude
     Version1-host-present-timer-expiry: off
     Version2-host-present-timer-expiry: 00:01:55

# Display detailed information about IGMP multicast groups configured with SSM mapping that hosts dynamically join in the public network instance.

<sysname> display igmp group ssm-mapping entry-number
Interface group report information of VPN-Instance: public net
  Total 4 IGMP SSM-Mapping Groups reported
 Vlanif200(10.36.1.10):
  Total 2 IGMP SSM-Mapping Groups reported
 Vlanif100(10.0.0.4):
  Total 2 IGMP SSM-Mapping Groups reported

**Table 1** Description of the **display igmp group ssm-mapping** command output
Item	Description
IGMP SSM mapping interface group report information of VPN-Instance	Indicates the VPN instance to which IGMP SSM mapping information belongs.
GigabitEthernet0/0/0(10.133.4.2)	Indicates the interface name (IP address).
Limited entry of this VPN-Instance	Indicates the maximum number of IGMP entries on all the interfaces of the current VPN instance set through the igmp limit command.
Total entry on this interface	Indicates the total number of IGMP entries on this interface.
Limited entries on this interface	Indicates the maximum number of IGMP entries on the current interface set through the igmp limit command.
Total 1 IGMP SSM-Mapping Group reported	Indicates the number of reported IGMP multicast groups configured with SSM mapping.
Group	Indicates the multicast group address.
Uptime	Indicates the time when the Report message is received from the host.
Expires	Indicates the timeout period of the multicast group. The time format is as follows: If the time is less than or equal to 24 hours, the format is hours:minutes:seconds. If the time is longer than 24 hours but less than or equal to one week, the format is days:hours. If the time is longer than one week, the format is weeks:days.
Last reporter	Indicates the last host that sends the Report message.
Last-member-query-counter	Indicates the number of times last member query messages can be sent.
Last-member-query-timer-expiry	Indicates the timeout period for the last member query messages.
Group mode	Indicates the group mode (either exclude or include).
Version1-host-present-timer-expiry	Indicates the timeout period of an IGMPv1 host.
Version2-host-present-timer-expiry	Indicates the timeout period of an IGMPv2 host.