3Com 8807 - Troubleshooting IGMP Snooping

428 CHAPTER 39: IGMP SNOOPING CONFIGURATION
Network diagram
Figure 105 Network diagram for IGMP Snooping configuration
Configuration procedure
Suppose you need to enable IGMP Snooping on VLAN10. 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> system-view
System View: return to User View with Ctrl+Z.
[SW8800] igmp-snooping enable
# Display the status of the VLAN10 interface, to check if PIM or IGMP is enabled
on this interface.
[SW8800] display current-configuration interface Vlan-interface 10
# You can enable IGMP Snooping in VLAN view only if PIM or IGMP is not running
on VLAN10.
[SW8800] vlan10
[3Com-vlan10] igmp-snooping enable
Troubleshooting IGMP
Snooping
Fault: Multicast function cannot be implemented on the switch.
Troubleshooting:
1 IGMP Snooping is disabled.
■ Carry out the display current-configuration command in any view to display
the status of IGMP Snooping.
Internet
Multicast
Swit ch
Ro uter