IBM RackSwitch G8000 User Manual

234 RackSwitch G8000: Application Guide
4. Configure LACP dynamic trunk group (portchannel).
5. Configure a static trunk group (portchannel).
6. Enable IGMP.
7. Configure IGMP Relay.
Troubleshooting
This section provides the steps to resolve common IGMP Relay configuration
issues. The topology described in Figure 21 is used as an example.
Multicast traffic from non-member groups reaches the hosts or the
Mrouter
• Ensure IPMC flood is disabled.
• Check the egress port’s VLAN membership. The ports to which the hosts and
Mrouter are connected must be used only for VLAN 2, VLAN 3, or VLAN 5.
Note: To avoid such a scenario, disable IPMC flooding for all VLANs enabled on
the switches (if this is an acceptable configuration).
RS G8000(config)# interface port 1,2
RS G8000(config-if)# lacp key 400
RS G8000(config-if)# lacp mode active
RS G8000(config-if)# exit
RS G8000(config)# portchannel 1 port 3,4 enable
RS G8000(config)# ip igmp enable
RS G8000(config)# ip igmp relay vlan 2,5
RS G8000(config)# ip igmp relay mrouter 1 address 5.5.5.5 enable
RS G8000(config)# ip igmp relay mrouter 2 address 5.5.5.6 enable
RS G8000(config)# ip igmp relay enable
RS G8000(config)# vlan 2
RS G8000(config-vlan)# no flood
RS G8000(config-vlan)# exit
RS G8000(config)# vlan 5
RS G8000(config-vlan)# no flood
RS G8000(config-vlan)# exit
RS G8000(config)# vlan <vlan id>
RS G8000(config-vlan)# no flood
RS G8000(config)# show vlan

IBM RackSwitch G8000 Specifications

General

Brand	IBM
Model	RackSwitch G8000
Category	Network Router
Language	English