Range: 5 to 86400 seconds.
on-startup
wait-for-bgp
[wait-time]
Enable the router to announce the maximum metric in OSPF
LSAs until the BGP routing table converges with updated
routes. Default: 600 seconds.
You can also specify the time (in seconds) that the router
waits for the BGP routing table to converge before it stops
advertising the maximum cost in LSAs and advertises the
router’s currently configured OSPF cost. Range: 5 to 86400
seconds.
Defaults Not Configured.
Command
Modes ROUTER OSPF
Command
History Version 9.1.
(0.0)
Introduced on the S4810 and Z9000.
Version 8.4.2.5 Introduced on C-Series and E-Series TeraScale.
Version 8.4.1.3 Introduced on E-Series ExaScale.
Usage
Information When you bring a new router onto an OSPF network, you can configure the router
to function as a stub router by globally reconfiguring the OSPF link cost so that
other routers do not use a path that forwards traffic destined to other networks
through the new router for a specified time until the router’s switching and routing
functions are up and running, and the routing tables in network routers have
converged.
By using the max-metric router-lsa command, you force the link cost of all OSPF
non-stub links to the maximum link cost (65535). The advertisement of this
maximum metric causes other routers to assign a cost to the new router that is
higher than the cost of using an alternate path. Because of the high cost assigned
to paths that pass through the new router, other routers will not use a path through
the router as a transit path to forward traffic to other networks.
Use the max-metric router-lsa command to gracefully shut down or reload a
router without dropping packets destined for other networks.
NOTE: If you enter the max-metric router-lsa command without an option
(on-startup announce-time or on-startup wait-for-bgp [wait-time]), the
maximum metric of 65535 is always announced in LSAs sent by the router.
Example max-metric router-lsa
Dell(conf)#router ospf 10
Dell(conf-router_ospf)#log-adjacency-changes
Dell(conf-router_ospf)#network 4.1.1.0/24 area 0
Dell(conf-router_ospf)#network 1.1.1.0/24 area 1
Dell(conf-router_ospf)#max-metric router-lsa on-startup wait-
1162 Open Shortest Path First (OSPFv2 and OSPFv3)