OSPF Router ID

Unanswered Question
Apr 12th, 2007

hi there. what the consequences if the router id is changed on the live production network? will be lsa sent to all areas at that moment? tx ;)

I have this problem too.
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royalblues Thu, 04/12/2007 - 23:23

If a router's OSPF Router ID is changed, the

router's OSPF software should be restarted before the new Router ID takes effect.

Before restarting in order to change its Router ID, the router should flush its self-originated LSAs from the routing domain or they will persist for up to MaxAge minutes.

HTH, rate if it does


minumathur Thu, 04/12/2007 - 23:40


Router id play important role for selection in DR/BDR if it is broadcast envirement, Depending on your enviroment , it will play role.


bellocarico Fri, 04/13/2007 - 03:21

Virtual-links also refer to the Router ID.

If you are to change any router ID remember to change also the virtual-link config.


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