IBM RackSwitch G8000 User Manual

© Copyright IBM Corp. 2011 Chapter 19. Internet Group Management Protocol 229
Configuration Guidelines
• Consider the following guidelines when you configure IGMP Relay: IGMP Relay
is supported in stand-alone (non-stacking) mode only.
• IGMP Relay and IGMP Snooping are mutually exclusive—if you enable IGMP
Relay, you must turn off IGMP Snooping.
• Add the upstream Mrouter VLAN to the IGMP Relay list, using the following
command:
• If IGMP hosts reside on different VLANs, you must:
– Disable IGMP flooding.
– Enable CPU forwarding to ensure that multicast data is forwarded across the
VLANs.
Configure IGMP Relay
Use the following procedure to configure IGMP Relay.
1. Configure IP interfaces with IPv4 addresses, and assign VLANs.
2. Turn IGMP on.
3. Enable IGMP Relay and add VLANs to the downstream network.
RS G8000(config)# ip igmp relay vlan <VLAN number>
RS G8000(config)# vlan <vlan id>
RS G8000(config-vlan)# no flood
RS G8000(config)# vlan <vlan id>
RS G8000(config-vlan)# cpu
RS G8000(config)# interface ip 2
RS G8000(config-ip-if)# ip address 10.10.1.1
RS G8000(config-ip-if)# ip netmask 255.255.255.0
RS G8000(config-ip-if)# vlan 2
RS G8000(config-ip-if)# enable
RS G8000(config-ip-if)# exit
RS G8000(config)# interface ip 3
RS G8000(config-ip-if)# ip address 10.10.2.1
RS G8000(config-ip-if)# ip netmask 255.255.255.0
RS G8000(config-ip-if)# vlan 3
RS G8000(config-ip-if)# enable
RS G8000(config-ip-if)# exit
RS G8000(config)# ip igmp enable
RS G8000(config)# ip igmp relay enable
RS G8000(config)# ip igmp relay vlan 2
RS G8000(config)# ip igmp relay vlan 3

IBM RackSwitch G8000 Specifications

General

Brand	IBM
Model	RackSwitch G8000
Category	Network Router
Language	English