Has it only been with connectorised radios, or have you had it on other
radios? 180/200?
On 11/3/2016 12:00 PM, Gerard Dupont III 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]
<mailto:[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] <javascript:;>] 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
