I would like to set up a redundant link between two switches. I have four ports available to accomplish this.
Scenario A: Switch 1 has ports 1+2 trunked together via LACP. They are plugged into Switch 2 ports 1+2.
Scenario B: Switch 1 has ports 1+2 trunked together without LACP. They are plugged into Switch 2 Ports 1+2.
In Scenario B I can unplug one of the patch cables and the switches will still be linked, establishing redundancy. In Scenario A, what will happen when I unplug one of the patch cables? Will LACP allow the link over just one interface? Or will the link stop because an interface is missing.
Link failover time of 250 milliseconds or less and a maximum link failover time of 2 seconds; port channels remain in the LINK_UP state to eliminate reconvergence by the Spanning-Tree Protocol.