03-19-2024 07:18 AM
Dear,
We have a stack of 3x CBS350 switches, are stacked in native stacking all switch same type: CBS350-24P-4X . The switches are connected with a single stack ring network. We configured fixed unit numbers. The system is working fine.
While testing we switched off the active switch within the stack. We noticed a communication loss between 10 - 60 seconds, before the standby switch took over the active role. We did try it multiple times
What is the expected communication loss in this setup? Is there any possibility to reduce the communication loss?
03-19-2024 09:56 AM
To my knowledge, there isn’t any way to control or even view the innerworkings of the CBS350 stacking. Also, I do not really know why CISCO uses the terms ‘active’ and ‘standby’ there. To me, all switches in a CBS350 stack are active. I have a native stack of 2 CBS350 switches and several other switches and servers connected to the stack. All connections are LACP LAGs and I can see that both links in each LAG are actively used. I’ve done several tests involving restarting, shutting down, pulling out plugs and haven’t seen much of traffic interruption, probably thanks to LACP.
03-20-2024 04:20 AM
Kris thanks for you reply.
I dont see an option to select them all as active members also not via a CLI commands. How to select the stacked links to LACP for the stack connections or do you mean the other switches (outside of the CBS350 switches) are connected via LACP?
03-20-2024 06:00 AM
I did not mean LACP on the stacking links. It's LACP on the LAGs with other switches/servers.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide