Migration strategy dc N7K to N9K

[Augustgood]

Hi all

This my environment:

dc1: N7K1-2(VPC+peer gw) ------ VPLS (l2 stretching) + MPLS vpn --------dc2: N9K1-2 (VPC+peer gw)

  hsrp primary ---------------------------------------------------------------------hsrp secondary

We will migrate from the old dc to a new dc with hsrp active passive and we will avoid black hole with the secondary hsrp nodes.

Can this be achieved? who recommends me some migration strategy

[Sergiu.Daniluk]

Hi @Augustgood 

Having a HSRP Active node in DC1 and a HSRP standby node in DC2 will never work because of vPC: in a nutshell, having HSRP Active + Listen in a vpc domain is not supported and will blackhole traffic on the HSRP Listen node. 

I would recommend adding HSRP isolation between VPC domains and having the VIP active in each DC.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/interfaces/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_Interfaces_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_Interfaces_Configuration_Guide_7x_appendix_011...

Stay safe,

Sergiu

[Augustgood]

Hi,

If i set the vip the active on each dc with hsrp isolation acl's, how can i stretch the vlan between the DC? can you recommends some migration strategy or a document to improve my knowledge about this migration ?

Thx

Stef