H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 2 IGMP Snooping Configuration
2-31
# Create VLAN 100, add Ethernet 2/0/1 through Ethernet 2/0/3 to VLAN 100, and
enable IGMP Snooping in this VLAN.
[SwitchB] vlan 100
[SwitchB-vlan100] port ethernet 2/0/1 to ethernet 2/0/3
[SwitchB-vlan100] igmp-snooping enable
3) Configuration on Switch C
# Enable IGMP Snooping globally.
<SwitchC> system-view
[SwitchC] igmp-snooping
[SwitchC-igmp-snooping] quit
# Create VLAN 100, add Ethernet 2/0/1 through Ethernet 2/0/3 to VLAN 100, and
enable IGMP Snooping in this VLAN.
[SwitchC] vlan 100
[SwitchC-vlan100] port ethernet 2/0/1 to ethernet 2/0/3
[SwitchC-vlan100] igmp-snooping enable
4) Verify the configuration
# View the IGMP message statistics on Switch C.
[SwitchC-vlan100] display igmp-snooping statistics
Received IGMP general queries:3.
Received IGMPv1 reports:0.
Received IGMPv2 reports:4.
Received IGMP leaves:0.
Received IGMPv2 specific queries:0.
Sent IGMPv2 specific queries:0.
Received IGMPv3 reports:0.
Received IGMPv3 reports with right and wrong records:0.
Received IGMPv3 specific queries:0.
Received IGMPv3 specific sg queries:0.
Sent IGMPv3 specific queries:0.
Sent IGMPv3 specific sg queries:0.
Received error IGMP messages:0.
Switch C received IGMP general queries. This means that Switch A works as an
IGMP-Snooping querier.
2.9 Troubleshooting IGMP Snooping Configuration
2.9.1 Switch Fails in Layer 2 Multicast Forwarding
I. Symptom
A switch fails to implement Layer 2 multicast forwarding.