ICX Switches | 7150, 7450 | LAG Issue | Redundancy

[rajivw]

Hi everyone,

We have deployed couple of ICX-7150 Switches as the Access layer (Multiple floors / stacks) and 2x ICX-7450 as the Core. All the access switch stacks are getting connected to the core via 2x 1G links (Eg: 3-switch stack group; 1 link from the top switch of the stack to core SW1 and 1 link from bottom switch of the stack to core SW2 - LAGed). 

All the LAGs are up and functioning properly. When we disconnect one link physically, the LAG is still up and the connectivity remains the same.

However, for few floors / stacks, when we disconnect one physical link of the LAG, both physical links go down and the LAG also goes down. When we reconnect the link again, both come up again and the LAG is online.

Appreciate your advice on this.