
Configuring IGMP Relay
117355-C Rev 00
9-23
Configuring IGMP Relay with Router Redundancy
IGMP Relay operates with Bay Networks router redundancy in hot standby mode.
Figure 9-9
shows a topology with two IGMP Relay devices configured for router
redundancy. One of the IGMP Relay devices is configured as the primary device;
the other is configured as the secondary device. When the primary device is active,
it is responsible for all IGMP Relay functions as well as all routing features
associated with the device. The secondary device remains in a passive mode with
the protocols loaded but not actively processing or sending information.
If the secondary device determines that the primary device is inactive, the
secondary device transitions to the active state, assuming all functions, including
the IGMP Relay function. The original primary device transitions to the secondary
state.
Figure 9-9. IGMP Relay with Router Redundancy
For information, see Configuring Interface and Router Redundancy.
IP0070A
Primary
IGMP-R
IP multicast
router
Backup
IGMP-R
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