Hi, after a full reboot of the VSX by performing this sequence:
1 - Power-down Aruba 8320-1 (Primary)
2 - Power-down Aruba 8320-2 (Secondary)
3 - Physically relocate both Aruba 8320 into definitive Rack position
4 - Power-up Aruba 8320-1 (Primary)
5 - Power-up Aruba 8320-2 (Secondary) about 20 seconds after powering up Aruba 8320-1 (so the first ready is the Primary).
Now the VSX ISL LAG 128 (lag128) member ports' sequence on Secondary peer looks like this:
Aruba-8320-2# show vsx lacp aggregates lag128
Local-peer Remote-peer
-------------------------------------------------------------------------------
Aggregate-name : lag128 lag128
Interfaces : 1/1/50 1/1/49 1/1/53 1/1/52 1/1/52 1/1/49 1/1/50 1/1/53
Heartbeat rate : slow slow
Hash : l3-src-dst l3-src-dst
Aggregate mode : active active
and, conversely, the Primary peer - queried by the Secondary - shows that:
Aruba-8320-2# show vsx lacp aggregates lag128 vsx-peer
Local-peer Remote-peer
-------------------------------------------------------------------------------
Aggregate-name : lag128 lag128
Interfaces : 1/1/50 1/1/49 1/1/53 1/1/52 1/1/52 1/1/49 1/1/50 1/1/53
Heartbeat rate : slow slow
Hash : l3-src-dst l3-src-dst
Aggregate mode : active active
So it looks like the sequence ordering changes after a reboot (DAC Cables are still connected sequencially: 49 with 49, 50 with 50, 52 with 52 and 53 with 53).
Note how the running-config (JSON) sequence about lag128's member ports is represented on the Secondary:
"lag128": {
"admin": "up",
"description": "VSX-ISL-LAG128-Link",
"interfaces": [
"1%2F1%2F50",
"1%2F1%2F49",
"1%2F1%2F53",
"1%2F1%2F52"
],
"lacp": "active",
"name": "lag128",
"other_config": {
"mclag_enabled": "false"
},
"vlan_mode": "native-tagged",
"vlan_tag": "1",
"vsx_sync": [
"^vlan.*"
]
}
I didn't notice any issues with packet forwarding BUT that's because simply the VSX I'm working with is still in its staging phase so no Multi-Chassis LAGs were defined (so there is no usage at Layer 2 level...), I'm going to start with deployment in a few days and then I hope the setup will be bullet-proof.