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Nexus 6K Layer 2 Data Center Interconnect using double sided vPC configuration

Carl_perkins4
Level 1
Level 1

i Can anyone help I've got 2 DC's being connected by L2 Links. I'm planning to extend vlans between DC's

I know the 6000's don't support OTV and q n q tagging.

 

2 1gb layer 2 links that will be connected to Juniper Srx then into the N6Ks

 

Should there be 2 separate vpc's for each link with even vlans down 1 and odd vlans down the other for resilience and stp priorty and cost adjusted accordingly? is this supported?

 

 

 

DC-2-DC.PNG

 

 

 

 

Or is it better to have one VPC between both Cores?

DC-2-DC-opt2.PNG

how would you configure the port-channel for the resilience on the primary and backup interfaces?

conf t
switch(config)#
switch(config)# interface po xx
switch(config-if)#
spanning-tree port type network default
spanning-tree vlan 2,4,6,8,10,12,14,16,18,20,22,24,26,28,30 port-priority 64
spanning-tree vlan 1,3-5,7,9,11,13,15,17,19,21 port-priority 112
spanning-tree vlan 2,4,6,8,10,12,14,16,18,20,22,24,26,28,30 cost 4
spanning-tree vlan 1,3-5,7,9,11,13,15,17,19,21 cost 200000000

 

Kind Regards,

Carl

 

2 Replies 2

cassiolange
Level 1
Level 1

Hello Carl

 

I think the best option is utilize just one VPC. 

 

You could isolates the STP at each data center. Reference below. 

https://www.cisco.com/c/en/us/support/docs/switches/nexus-7000-series-switches/118934-configure-nx7k-00.html

 

Regards,

Thanks for the reply i will investigate this further.
Kind Regards,
Carl

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