Fast hello link for Dual-Active Detection

[krishnadig]

Hi,

My query is regarding "exclude interfaces" in Dual-Active Detection.

Do I need to add the fast hello interfaces as part of dual-active exclude interfaces? 

When a dual active scenario is detected, and primary chassis is in recovery mode - I get below output; is that normal?

Fast-hello dual-active detection enabled: Yes

Fast-hello dual-active interfaces:
Port       Local State    Peer Port    Remote State
---------------------------------------------------
Gi2/1/2    Link dn        -            -        

show switch virtual dual-active summary
Pagp dual-active detection enabled: Yes
Bfd dual-active detection enabled: Yes
Fast-hello dual-active detection enabled: Yes

No interfaces excluded from shutdown in recovery mode

In dual-active recovery mode: No

[Madhukrishnan Gopinathan Nair]

Hello Krishna,

In dual active recovery mode, all the interfaces except the VSL links are shut down. There is no need to exclude the dual -active interface in excluded list. 

Just to clarify looking at your outputs, i do need see the switch in recovery mode. So is the output taken after recovery is done ?

In dual-active recovery mode: No

[krishnadig]

Hi Madhukrishnan,

Thanks for clarifying. 

At the moment, the VSS is operating in normal mode & the output is below. Please advise if you see anything wrong..

show switch virtual dual fast-hello
Fast-hello dual-active detection enabled: Yes

Fast-hello dual-active interfaces:
Port Local State Peer Port Remote State
---------------------------------------------------
Gi1/1/2 Link up Gi2/1/2 Link up

show switch virtual dual-active summary
Pagp dual-active detection enabled: Yes
Bfd dual-active detection enabled: Yes
Fast-hello dual-active detection enabled: Yes

No interfaces excluded from shutdown in recovery mode

In dual-active recovery mode: No

[Madhukrishnan Gopinathan Nair · Accepted solution]

From the output above i do not see any issue.

Hope it was useful and rate the posts if you find them useful. Please feel free to ask incase of any further questions.

Thanks,

Madhu.