Hi Parnassus,
Thanks for sharing your configuration with us, it has more details than mine and it will be very helpful.
Pals, finally the idea is the same, just with more details and suggestions from Parnassus.
Parnassus,
I would like to harden the keepalive link using a LAG group with 2 physical ports (using your configuration example), this would be my configuration for the primary vsx member, would you mind suggesting me any other add?:
interface lag 10
description ISL-Keepalive
no shutdown
vrf attach VSX-ISL-Keepalive
ip address 10.250.250.1/30
lacp mode active
interface 1/1/1
description 8320-1-ISL-Keepalive-1-1-1
no shutdown
mtu 9198
lag 10
interface 1/1/48
description 8320-1-ISL-Keepalive-1-1-48
no shutdown
mtu 9198
lag 10
vsx
inter-switch-link lag 128
role primary
keepalive peer 10.250.250.2 source 10.250.250.1 vrf VSX-ISL-Keepalive
linkup-delay-timer 35
Have a nice day pals