What is an official definition of a reciprocal protection group for vPCs?

[RedNectar]

I do remember actually saying in a blog post one time that a reciprocal protection group for vPCs meant every second switch - and I do actually believe that is the case, although I don't have the equipment right here to prove it.

Could one of you wonderful friends out there supply me with either:

1. A Cisco document that actually tells me what a reciprocal protection group for vPCs, or
2. a screen shot showing VPC Protection Groups configured as a reciprocal protection group with leaf numbers showing

TIA

RedNectar
aka Chris Welsh

[Sergiu.Daniluk · Accepted solution]

Hello Chris,

AFAIK, the reciprocal option will map odd nodes or even nodes together to form the vPC domain. My understanding seems to be confirmed by the examples below:

vpc domain consecutive
Description: Pair all discovered leaves consecutively e.g. 101-102, 103-104
Command Mode: configure : Configuration Mode
Command Path:
# configure [['terminal', 't']]
(config)# vpc domain consecutive

vpc domain reciprocal
Description: Pair all discovered leaves reciprocally e.g. 101-103, 102-104
Command Mode: configure : Configuration Mode
Command Path:
# configure [['terminal', 't']]
(config)# vpc domain reciprocal

Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/cli/nx/cr122/b_APIC_NXOS_CLI_Cmd_Reference_122/b_APIC_NXOS_CLI_Cmd_Reference_122_chapter_010101.html

At the moment I do not have access to my lab, but I will give it a try later this week.

Stay safe,

Sergiu

[RedNectar]

Thanks Sergiu - I didn't think of looking at the CLI! But just like the document, it is right there.

apic1(config)# vpc domain ?
 consecutive  Pair all discovered leaves consecutively e.g. 101-102, 103-104
 explicit     Pair two leaf nodes explicitly
 reciprocal   Pair all discovered leaves reciprocally e.g. 101-103, 102-104

Pity they didn't think to put the same information on the GUI help page!