Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SERVICE AVAILABILITY CONFIGURATION GUIDE 2010-10-08 Configuration Manual page 67

Copyright © 2010, Juniper Networks, Inc.
Table 8: Application Support for Stateful SRP Switchover (continued)
Application Supported
Multicast Routing
DVMRP
IGMP
Chapter 3: Managing Stateful SRP Switchover
Unsupported Notes
– Stateful SRP switchover. During
switchover, the system mirrors the
multicast queue so that IP can use the
same queue without needing to recreate
a different connection. The multicast
queues are also preserved during the
switchover and graceful restart period
to ensure that multicast data continues
to be forwarded using the previously
learned multicast forwarding state.
– Static recovery support only. DVMRP
gives the restart complete indication to
the IP routing table after getting a peer
update (60-second timeout).
– IC IGMP deletes its interface and
membership state on SRP failover
(controller down). As part of SRP warm
start, IGMP interfaces are reconfigured
from NVS and dynamic IGMP interfaces
are reconfigured from mirrored storage.
IGMP hosts are queried as IP interfaces
come back up, the join state is
re-established, and SC IGMP state is
created.
After the maximum query response time
(across all interfaces) expires to allow
hosts to re-establish join state, IGMP
notifies MGTM that graceful restart is
complete.
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