Configuring VSX is a bit more involved than VSF.
General Components:
- ISL (Interswitch Link)
- Keep Alive Mechanism
- Active-Forwarding
- Active-Gateway
- Linkup-Delay
- VSX LAG
On both members…make sure the two members are running the same port speeds:
system interface-group 4 speed 25g
sh int brief
Configure new LAG interface 10, add it to port 1/1/46
int lag 10
no routing
no shutdown
lacp mode active
lacp rate fast
vlan trunk allowed all
interface 1/1/46
no shutdown
lag 10
Configure VSX on LAG 10
On Primary
sh lacp interfaces
config t
vsx
system-mac 00:00:00:AB:CD:01
inter-switch-link lag 10
role primary
On Secondary
sh lacp interfaces
config t
vsx
system-mac 00:00:00:AB:CD:01
inter-switch-link lag 10
role secondary
On primary, check and see VSX members are peered and sync’d
show vsx brief
sh vsx status
sh vsx configuration inter-switch-link
SH VSX configuration inter-switch-link vsx-peer
show vsx config-consistency
For the keep alive, we’ll be using a VRF as part of the configuration. Keepalive will be configured on interface 1/1/47
On Primary
conf t
vrf keepalive
int 1/1/47
vrf attach keepalive
ip address 10.1.18.41/30
no shutdown
end
vsx
keepalive peer 10.1.18.42 source 10.1.18.41 vrf keepalive
On Secondary
conf t
vrf keepalive
int 1/1/47
vrf attach keepalive
ip address 10.1.18.42/30
no shutdown
end
vsx
keepalive peer 10.1.18.41 source 10.1.18.42 vrf keepalive
Next, configure the Active Gateway for vlan interface 14
On Primary
vlan 14
exit
int vlan 14
ip add 10.1.14.2/24
l3-counters
active-gateway ip 10.1.14.1 mac 00:00:00:00:10:FE
no shutdown
end
On Secondary
vlan 14
exit
int vlan 14
ip add 10.1.14.3/24
l3-counters
active-gateway ip 10.1.14.1 mac 00:00:00:00:10:FE
no shutdown
Last, configure LAG 12 from VSX Pair to VSF Stack or a switch via LACP. Tags VLAN 14
On Primary
int lag 12 multi-chassis
no routing
no shutdown
description To-VSF
vlan trunk allow all
lacp mode active
lacp rate fast
int 1/1/1-1/1/2
lag 12
no shutdown
end
On Secondary
int lag 12 multi-chassis
no routing
no shutdown
description To-VSF
vlan trunk allow all
lacp mode active
lacp rate fast
int 1/1/1-1/1/2
lag 12
no shutdown
end