Hello,
We have the following setup:
SW-A <—> Microwave-A << ===== >> Microwave-B <----> SW-B
where SW-A (Switch A) and SW-B (Switch B) are Mikrotik CRS125 units, running 6.20. The Microwave units require us to use a VLAN identification of 1001, which we have setup accordingly in the Switch → VLAN → VLAN Tagging area.
This is a single subnet; no routing or gateway IP numbers are involved here.
Twice since May 15 (60 days or so) we have lost contact in one direction, A → B while B → A worked just fine. A person at B could access anything on the network, but if you were on the A side, you could not access anything at location B.
A power cycle of the switches would not repair the link.
Interestingly, at Site B, we needed to Disable the VLAN 1001, give it 10 seconds, and then enable it, and now traffic passes to both sides again.
Any thoughts on why this may be happening?
I am considering writing a script running on B that will (if possible) drop the VLAN once a day, and enable it, but that doesn’t make a lot of sense to me, as I would be (almost always) disturbing a working link. Because B is always able to detect A, it would not know that A was having a problem detecting B, and if A cannot see B, A cannot tell B to reset the VLAN automagically.
Any thoughts?
Thanks,
Christian