Ubiquiti used d to have this problem. They added bridge filtering to fix this.
On Nov 3, 2016 12:00 PM, "Gerard Dupont III" <[email protected]> wrote: > We've had this happen a couple times after lightning. We have SM > isolation turned on. > > On Thursday, November 3, 2016, Justin Marshall <[email protected]> wrote: > >> I've seen this issue multiple times >> >> FWIW, the SM isolation did not help in my experiences with this issue >> >> I've even opened a ticket with cambium, but they say they are unable to >> re-produce the issue >> >> -----Original Message----- >> From: Af [mailto:[email protected]] On Behalf Of Nate Burke >> Sent: Thursday, November 03, 2016 12:39 PM >> To: Animal Farm >> Subject: [AFMUG] EPMP 1000 SM looping ethernet port after Storm >> >> I've had this happen twice now, so it's more than just a 1 off. Both have >> happened in lightening storms. If you have weird things happening after a >> storm, this would be a place to start looking. >> >> Symptom: Random loss of network connectivity (RF stays up) to most Sm's >> off of an AP, and/or network switch reporting port loop. >> >> Cause: A 1000 Series connectorised SM could add the MAC addresses of any >> other devices on the AP/switch to it's local bridge table. This will cause >> random loss of connectivity to any other SM/CPE connected to the same AP. >> Usually network connectivity can be solidly maintained to this single SM >> over the RF link. The Ethernet link will not pass any traffic, but will >> have a lot of MAC entries on port LAN or Unknown under >> Monitor>Network>Bridge Table These will all be MAC addresses from other >> SM/CPE devices on the AP. >> >> Remedy: Disabling the Ethernet port on the problem SM will solve the >> issue until the SM is replaced. There has been NO damage to the CPE >> device in ether case I have encountered, replacing the SM was the only >> action taken. >> >> Notes: I realized that I do not have SM Traffic Isolation enabled at the >> AP, I do not know if this would prevent the issue or not. I have this >> bad SM labeled, If I can get some free time, I my try it on the bench to >> see if that setting would prevent it from affecting other radios. >> >> Hopefully this will help others cut their troubleshooting time. >> >> Nate >> >
