UMN:CLI
User Manual
V8102
586
11.3.7.3
Excluding GenID Option
PIM hello messages may contain the generation ID (GenID) in the option fields, which is
a random value for the interface on which the hello message is sent. The GenID is re-
generated whenever PIM forwarding is started or restarted on the interface. It enables
neighbors to quickly detect a
router’s reboot and thus to synchronize RP-set information
and forwarding states by triggering the bootstrap and join/prune messages to the reboot-
ed router. The rebooted router then is able to quickly recover from the reboot.
Some older Cisco
’s routers cannot recognize the GenID option in the hello messages, so
this system provides the exclude-GenID option for the compatibility with the Cisco
’s rout-
ers.
To exclude the GenID option from the PIM hello messages, use the following command.
Command
Mode
Description
ipv6 pim exclude-genid
Interface
[GPON]
Excludes the GenID from the hello messages.
no ipv6 pim exclude-genid
Includes the GenID from the hello messages.
