[cisco-voip] IOS VG Link redundancy

[Nikola Stojsin]

As long as you do not need load balancing between voice gateways, HSRP would
work really well here, I think. I do not know what your OSPF topology looks
like, but something along the lines of HSRP with totally stubby OSPF area
would be my choice here. It is about as simple as it gets.

 

 If you do need load balancing, you can use Multigroup HRSP
(http://www.cisco.com/en/US/tech/tk648/tk362/technologies_configuration_exam
ple09186a0080094e90.shtml), with one caveat: some NICs cannot handle
multiple MAC addresses, so, depending on the router model, MHRSP may or may
not work.

 

Actually, it would be interesting to see which - HSRP, OSPF or EIGRP - would
converge/failover the fastest.

 

HTH,

Nikola

 

 

 

 

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Nikola Stojsin

PhD CCIE #12888

President

Network Makers LLC

110 Wall Street, 11th Floor

New York, NY 10005

(212) 709-8201

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 <mailto:nikolas at networkmakers.com> nikolas at networkmakers.com

-------------------------------------------

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Brandon Bennett
Sent: Monday, January 26, 2009 7:38 PM
To: Jason Aarons (US)
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] IOS VG Link redundancy

 

 

What makes you want to change it?


Well it's mostly a political thing.  We are trying to remove the network
team from the gateways and remove the voice team from the network.

Also 12.4(15)T8 which is required for our CVP install has proven itself so
completely unstable that the idea of having it in my routing domain scares
me and probably the less services running on it the better.

I am doing max-metric, and a separate OSPF area for the VGs so that they
will never try to route traffic not for them, but it seems to me there
should be a better way to have an IOS device that doesn't have to
participate with a RP with the rest of the network.



-Brandon

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