I've got a some weird HSRP config going on in my network and just wondered whether there was any good reason for it. The last admin set this up and I'm not really sure what he was attempting to do.
Anyway, I've got two DC's with some vlans spanned across the Nexus cores. I know these ought to be pure layer 3 and I plan on getting that cleaned up eventually.
I think the last admin was attempting to have the HSRP vip available at both DC's if one went down? However, the vip is different at each (e.g. 10.0.0.1 vs 10.0.0.10) .
- Is spreading HSRP across 2 different Nexus pairs on their own vPC domains even recommended? I know it's not a good idea to have them across different DC's
- If you were going to do that you'd obviously have to have the vip the same across all 4 interfaces right? The devices aren't going to be pointed towards a .10 gateway.
I don't see any good reason to keep the interfaces on my DC-1 pair.
DC-1 vPC Doman 1 DC-2 vPC Domain 2
Nexus A Nexus C
┌────────────.1 vlan 10 spanned ┌──────────.3
HSRP 10 ┌────┴────────────┴─────────────────────────┴──────────┴────┐ HSRP 10
ip 10.0.0.10│ ┌────────────.2 ┌──────────.4 │ ip .1
└────┴────────────┴─────────────────────────┴──────────┴────┘
Nexus B Nexus D