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router priority in ospf process

3 REPLIES

Re: router priority in ospf process

hi

This number sets the router priority and is only used on multi-access networks such as LANs. This establishes whether the router is eligible to become the Designated Router for the LAN. The value for OSPF Router Priority can be a number between 0 and 255.

At least one router on a LAN must have a priority greater than 0 in order for OSPF to work, since there must be a Designated Router.

The Designated Router is the single router within an area which broadcasts the Link State Advertisement for the area. A priority of 0 means that the router is not eligible. The router with the highest priority becomes the Designated Router.

If a router with a lower priority is the Designated Router and a new router with a higher priority comes online, the Designated Router will not change

rate this post if it helps

regards

Devang

New Member

Re: router priority in ospf process

am i right in saying the router with the highest active ip address becomes DR ? or if it has a loopback ?

Re: router priority in ospf process

Carl,

The order of selection goes like this:

1. highest loopback IP (if multiple loopback int configured).

2. loopback ip (if only one loopback int configured)

3. highest physical ip address (if no loopback configured).

Hope that helps!

Regards,

Sundar

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