Troubleshoot Igmp Snooping - 3Com 8800 Configuration Manual

3Com Switch 8800 Configuration Guide
To implement IGMP Snooping on the switch, you need to enable IGMP Snooping on
the switch first. The switch is connected with the router via the router port, and
connected with user PC through the non-router ports.
II. Networking diagram
Ro uter
Swit ch
Figure 24-4 IGMP Snooping configuration networking
III. Configuration procedure
Suppose you need to enable IGMP Snooping on VLAN1. The procedures are as
follows:
Display the current state of IGMP Snooping.
<SW8800> display igmp-snooping configuration
If IGMP Snooping is not enabled, enable it in system view.
[SW8800] igmp-snooping enable
Display the status of the VLAN1 interface, to check if PIM or IGMP is enabled on it.
[SW8800] display current-configuration interface Vlan-interface 1
If PIM or IGMP is not running on VLAN1, you can enable IGMP Snooping in VLAN view.
[SW8800-vlan1] igmp-snooping enable

24.5 Troubleshoot IGMP Snooping

Fault: Multicast function cannot be implemented on the switch.
Troubleshooting:
1) IGMP Snooping is disabled.
Input the display current-configuration command to display the status of IGMP
Snooping.
Internet
Multicast
24-8
Chapter 24 IGMP Snooping Configuration