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Monday, October 11, 2010

Question 132

What should you be concerned with when running RIP or EIGRP in a hub and spoke frame-relay network?

Posted by Packets Analyzed at 7:41 PM
Labels: , , ,

1 comments:

Packets Analyzed said...

split horizon - Remember that a route learned through an interface will not be advertised out the same interface it was learned on. This would cause an issue with this particular scenario as the hub uses a single interface to communicate to the spokes.

In order to resolve this issue you must turn off split horizon for both RIP and EIGRP.

EX: HUB interface to spokes is serial 1/0

HUB
___

EIGRP

interface serial 1/0
no ip split horizon eigrp AS# (AS# = EIGRP autonomous number)

RIP

interface serial 1/0
no ip split-horizon

October 12, 2010 at 4:33 PM

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