Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 779)

Multi-Service IronWare Routing Configuration Guide 751
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Configuring RIPng
Enabling RIPng for a VRF instance
To enable RIPng for a specific VRF instance, enter the following commands:
Brocade(config)#ipv6 router rip vrf red
Brocade(config-ripng-router-vrf-red)#
Syntax: [no] ipv6 router rip vrf vrf-name
vrf-name is the specified VRF name for the RIPng. If the vrf-name is not specified, RIPng is
configured using the default VRF.
To disable the RIPng for a specific VRF instance, use the no form of the command.
Configuring RIPng timers
Table 163 describes the RIPng timers and provides their defaults.
You can adjust these timers for RIPng. Before doing so, keep the following caveats in mind:
• If you adjust these RIPng timers, it is strongly recommended to set the same timer values for
all routers and access servers in the network.
• Setting the update timer to a shorter interval can cause the Brocade device to spend excessive
time updating the IPv6 route table.
• It is recommended to set the timeout timer value to at least three times the value of the
update timer.
• It is recommended that a shorter hold-down timer interval, because a longer interval can
cause delays in RIPng convergence.
The following example sets updates to be broadcast every 45 seconds. If a route is not heard from
in 135 seconds, the route is declared unusable. Further information is suppressed for an
additional 10 seconds. Assuming no updates, the route is flushed from the routing table 20
seconds after the end of the hold-down period.
Brocade(config)# ipv6 router rip
Brocade(config-ripng-router)# timers 45 135 10 20
Syntax: [no] timers update-timer timeout-timer hold-down-timer garbage-collection-timer
Possible values for the timers are as follows:
• Update timer: 3 – 65535 seconds.
• Timeout timer: 9 – 65535 seconds.
• Hold-down timer: 9 – 65535 seconds.
TABLE 163 RIPng timers
Timer Description Default
Update Amount of time (in seconds) between RIPng routing updates. 30 seconds.
Timeout Amount of time (in seconds) after which a route is considered
unreachable. 180 seconds.
Hold-down Amount of time (in seconds) during which information about other paths is
ignored. 180 seconds.
Garbage-collection Amount of time (in seconds) after which a route is removed from the
routing table. 120 seconds.