Displaying Multicast Group Information; Figure 3-104 Igmp Group Membership - Edge-Core ES4625 Management Manual

3
Configuring the Switch

Displaying Multicast Group Information

When IGMP (Layer 3) is enabled on this switch the current multicast groups learned
via IGMP can be displayed in the IP/IGMP/Group Information page. When IGMP
(Layer 3) is disabled and IGMP (Layer 2) is enabled, you can view the active
multicast groups in the IGMP Snooping/IP Multicast Registration Table (see
page 3-175).
Command Attributes
• Group Address – IP multicast group address with subscribers directly attached or
downstream from this switch.
• Interface – The interface on this switch that has received traffic directed to the
multicast group address.
• Last Reporter – The IP address of the source of the last membership report
received for this multicast group address on this interface. If no membership report
has been received, this object has the value 0.0.0.0.
• Up time – The time elapsed since this entry was created.
• Expire – The time remaining before this entry will be aged out.
(Default: 260 seconds)
• V1 Timer – The time remaining until the switch assumes that there are no longer
any IGMP Version 1 members on the IP subnet attached to this interface.
(Default: 400 seconds)
- If the switch receives an IGMP Version 1 Membership Report, it sets a timer to
note that there are Version 1 hosts present which are members of the group for
which it heard the report.
- If there are Version 1 hosts present for a particular group, the switch will ignore
any Leave Group messages that it receives for that group.
Web – Click IP, IGMP, IGMP Group Membership.
CLI – The following shows the IGMP groups currently active on VLAN 1.
Console#show ip igmp groups vlan 1
GroupAddress
--------------- --------------- --------------- -------- -------- ---------
234.5.6.8
Console#
3-180

Figure 3-104 IGMP Group Membership

InterfaceVlan Lastreporter
1
Uptime
10.1.5.19 7068
4-240
Expire V1Timer
220 0