Question About HSRP With Four (4) 65xx's

Answered Question

Good afternoon,

I once found a document on how to configure HSRP for VLAN's going across four (4) 65xx's. We have about 4 VLAN's that span these 65xx's. We are implementing a WAN core containing two (2) 6506E's that will have a 10 gb connection to each of the 65xx's that will make up our server farm. I once found a document that gave examples, but cannot find it now. And any campus design doc that I have found, does not contain HSRP config. Any help would be appreciated.

Thanks in advance for you assistance.

Dave

I have this problem too.
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Correct Answer by Jon Marshall about 8 years 12 months ago

Dave

No problem. Is it safe to assume that you have a L2 link between the 2 6500's that your servers are connected to.

If so i would stick with just running HSRP on the server 6500's and uplinking with L3 links to your core. This contain STP to the server 6500's.

Jon

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Jon Marshall Tue, 12/11/2007 - 12:27

Hi Dave

If all switch inreconnects are L2 trunks then you can just configure 4 SVI's for the same vlan in the same subnet, one on each 6500 and then configure the same Virtual IP under all 4 SVI interfaces.

Am i missing the point ?

Jon

Jon,

No you are not missing the point. You answered the way I asked. What I forgot to also ask, was would I connect the four (4) 65xx's together to allow HSRP hellos to talk? Or would that occur up the links going to the WAN core? I just want to make sure I don't have two (2) 65xx running in Primary for the same VLAN.

I hope I asked that right.

Thanks,

Dave

Jon Marshall Tue, 12/11/2007 - 19:47

Dave

Could you describe the exact connectivity between the 4 6500's and whether the connections are L3 or L2 connections.

Just want to be sure i don't give you duff information.

Jon

Jon,

Sorry for not getting you all the information, as I forget some of these config issues.

I guess that is the question exact connectiviy between the 4 6500's. I had not planned to connect them. I am planning to run 10gig L3 connections from each 6500 up to the WAN core. So, each 6500 would have 2 10gig connections, and I guess your saying I might need a L2 connection between the 6500's.

Thanks for all the help.

Dave

Correct Answer
Jon Marshall Tue, 12/11/2007 - 20:30

Dave

No problem. Is it safe to assume that you have a L2 link between the 2 6500's that your servers are connected to.

If so i would stick with just running HSRP on the server 6500's and uplinking with L3 links to your core. This contain STP to the server 6500's.

Jon

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