I have two switches on a common network, which I've been asked to configure so that one interface from both switches is configured as an LACP bond.
I'm unsure, so my question to the community is, can two switches which aren't in an MLAG group, both serve an LCAP bond without having an explicit relationship with one-another?
Do I simply configure each interface as part of a bond so that the other end of that bonded interface understands my switches connections to it are effectively as one single device?
Best answer by Scott Emery
Without MLAG, the device at the other end of the switch's LACP bonds will figure out that it is connected to two different devices and thus will only use one of them to transmit and receive. The bond on that device will be up, but only one of the links will be used. This will cause LACP, running on one of the switches, to bring down its single-member bond, preventing any traffic from going in or out of that interface on the switch. Like with MLAG, you should have a peer link between the switches to prevent black-holing traffic on the switch with the backup bond.