Nexus 7k VPC and 6509 access

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Mar 27th, 2010
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Hi:

I have 2 Nexus 7K in a VPC Domain and a 6509 acting as an access switch.

I want to vpc the 6509 to the 2 Nexus.



Let's say domain is already created.


For the downstream link going to the 6509.

On the Nexus:

switch(config)# interface gig 4/1
switch(config-if)# channel-group 50 mode active
switch(config)# interface port-channel 50
switch(config-if)# vpc 50



How do I configure the 6509. Shouldn't id be a command under channel-group like "vpc 50". How will the 6509 know that it is participating in a VPC.

I have done vpc between 2k and 5k and I remember that I had co configure vpc xxx on the channel-group at the 2k level.


6509(config)#interface gig8/1
6509(config)#channel-group 50 mode active
6509(config)#??????????????????????--------->> anything more to do here

Thanks.

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Lei Tian Sat, 03/27/2010 - 11:43
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Hi,


Nothing special need to be configured on 6500s. From 6500s perspective, it is connecting to one device.


HTH,

Lei Tian

r.shummoogum Mon, 04/12/2010 - 13:40
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Lei Tian:


From the above config can I use channel-group 100 instead of 50. Or they have to match?

6509(config)#interface gig8/1
6509(config)#channel-group 100 mode active
6509(config)#??????????????????????--------->> anything more to do here

Thanks.

Jon Marshall Mon, 04/12/2010 - 13:43
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r.shummoogum wrote:


Lei Tian:


From the above config can I use channel-group 100 instead of 50. Or they have to match?

6509(config)#interface gig8/1
6509(config)#channel-group 100 mode active
6509(config)#??????????????????????--------->> anything more to do here

Thanks.


You have already had this answered in another thread.


Jon



allen23919 Mon, 03/05/2012 - 16:32
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sorry to drop in this thread, in his case, he is doing vPC from the two 7ks to the two 6509s non VSS switches, will it hurt to add a port channel between the 6509s for failover and throughput purposes? (host in same vlan across the two 6509s).


thanks,


allen

Oleksandr Nesterov Tue, 03/06/2012 - 12:01
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Allen, as I understand its one cat6k connected to two n7k



If you want to connect two cat6k switches - they have to be connected either via separate vpc port channels, or must run vss and be connected via one vpc port channel.


HTH,

Alex

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