We have a CRS125-24G-1S switch connected to out CCR1016-12G router. All 24 switch ports are filled. We have a spare CRS125-24G-1S switch. How can I stack these switches? ie: turn these 2 24 port switches into a 48 port switch. I have an optical cable to connect the 2 SFP ports.
Help or guidance appreciated.
Thanks.
They do not support stacking.
You design this as a L2 network with whats required.
Safest way is probably to plug 2nd switch into next port on router
place the 2 switch uplinks on the router into a bridge and move any sub-interfaces(vlans) to that bridge interface, so the VLAN’s span across the 2 switches.
Make sure
a) You are running some type of STP
b) To be careful about patching between switch 1 and switch 2 and creating a loop (xSTP is not always fool proof)
Thanks @JoeGoldman. Your suggestion is a good one. I have a spare port on our router. I’ll plug the switch in there and put this port on the bridge. The VLANs are on the bridge now, so I think they’ll be OK. I’m running STP and the switches will not be connected to each other. We’re going from 3 CRS switches to 4.
Thanks again!
Regards,
Dave