Stackwise Virtual Catalyt 9K (SSO/NSF)

[Learnercisco]

I want to confirm how to enable the NSF in the Catalyst 9606 for OSFP/BGP/MPLS. 

CISCO official guide is only showing the SSO configration:

Device# show redundancy states

       my state = 13 -ACTIVE 
     peer state = 8  -STANDBY HOT 
           Mode = Duplex
           Unit = Primary
        Unit ID = 5

Redundancy Mode (Operational) = sso
Redundancy Mode (Configured)  = sso
Redundancy State              = sso
     Maintenance Mode = Disabled
    Manual Swact = enabled
 Communications = Up

   client count = 115
 client_notification_TMR = 30000 milliseconds
           RF debug mask = 0x0

Device#

i want to enable NSF for OSFP/BGP/MPLS VPN if permary SUP Engine Fails.

I my case SSO is already enable. i am facing 15 packet drops after the failover is occure and standby promoted to active.

Share the configuration guide for fine tunning the Redundany timers  

[Reza Sharifi]

Here is the config guide for NSF for OSPF. For NSF to work correctly, the neighboring device must be NSF aware if not, NSF will not work.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9600/software/release/16-11/configuration_guide/ha/b_1611_ha_9600_cg/configuring_nsf_with_sso.html#topic_gbr_kmy_31b

HTH

[Learnercisco]

thanks reza sharifi for your reply 

IF i understand you correctly, according to my setup 2 Core connection with 2 Seperate   Distribution Clusters (2+2) 

                                                           CORE A + B (stackwise Virtul)

Distribution Cluter1:  A,B (Stackwise virtual)                                                          stribution Cluster 2: C, D (Stackwise virtual)

I have to enable NSF  on  Active Switches on: 

CORE (Switch A)

Distribution Cluster 1 (A)

Distribution Cluster 2 (C)

Please correct me i understand u well. thanks 

[Reza Sharifi]

I have to enable NSF  on  Active Switches on:

That is correct. You want to enable it on all 3  Stackwise virtual domains, which are NFS aware. 

That should reduce the fail-over time between each stack. 

HTH

[Learnercisco]

Thanks Reza sharifi for Confirmation.

So this implementation will also reduce the time for  overall MPLS VPN (MBGP) recovergence time between 3 stackwise virtual domains are because the reachiblitity is through MPLS VPNS?

CORE-PE

Distribution: CE

Thanks in advance. 

[Reza Sharifi]

So this implementation will also reduce the time for  overall MPLS VPN (MBGP) recovergence time between 3 stackwise virtual domains are because the reachiblitity is through MPLS VPNS?

You would have to test it. There maybe an option to add NSF to BGP as well but I just don't remember it.

HTH