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about rapid pvst and routing protocol

Hi netpro :

I have a problem .in the illustration.The first solution :I config the router A and switch A and B running rapid pvst ,the switch A is root,and switch B is seconder root ,if the black link or red link is broken , convergence is less 1 second.

The second solution: I'll config the Router A interface P1,P2 and Switch A interface P1 P2,SwitchB interface P1,P2 running dynamic routing protocl (ospf or eigrp). beacause of I read the doc ,cisco recommend using L3 routing protocol.

whatever , which is the best solution about this topology ? please help me ,thanks

1 ACCEPTED SOLUTION

Accepted Solutions
Silver

Re: about rapid pvst and routing protocol

Just a little addition:

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa.shtml#uplinkfast

With 802.1w the uplinkfast feature is not a must.

HTH

Andrea

3 REPLIES
Hall of Fame Super Bronze

Re: about rapid pvst and routing protocol

The best solution here is configuring uplinkfast on Switch A and Switch B in case any of the links are broken.

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3560/12225see/scg/swstpopt.htm#wp1031144

Silver
Silver

Re: about rapid pvst and routing protocol

Just a little addition:

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa.shtml#uplinkfast

With 802.1w the uplinkfast feature is not a must.

HTH

Andrea

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