The command to put a router to DR

[gill.lantz]

I new on this and will put a router to DR , how do I know if it already is DR, what does DR stands for?

Is DR a backbonerouter?

What is the command if it isn't a DR?

(I'm using packet tracer)

Answer like you should answer a 5 year old ;-), I'm new and English isn't my native language.

[acampbell]

Hi,

Perhaps you can translate this document

http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a0080094e9e.shtml#t20

DR = Designated router

Part of OSPF operations

By default the DR is elected on the highest RID ( Router Identification)

This can be over powered by using

ip ospf priority

on ospf interfaces

Regards

Alex

[gill.lantz]

Thank you, one more question, if I want to put a router as a drouter, can I just write Priority 0 or is it something completly different?

[acampbell]

Hi,

ip ospf priority  0 - 255

If you use 0 the router can NEVER become the DR

If 2 routers are using the command the the router with the HIGHEST priority will

WIN

Router 1

interface f0/0

ip ospf priority 100

!

Router 2

interface f0/0

ip ospf priority 50

!

Router 1 will become the DR

Regards

Alex

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