Re: Network Supervision Fault/Restore
Posted: Thu Dec 12, 2013 11:26 am
OK. I think I found the problem... Turns out, I had a stacked switch configuration (ie: Switch 1 plugged into Switch 2, Switch 2 plugged into Router) causing collisions on the network which can eventually cause the EVL-3 card to drop off.
After investigating, I found that Switch 1 was connected to Switch 2 from "port to port" instead of "Uplink port to port". After correcting this mistake and rebooting Switch 1, the problem went away. Running without fail 2 days and counting. So far so good...
To confirm this in your situation, try removing all connections to your Switch except the EVL-3 Card and your Uplink to the Router. If the problem goes away, try plugging in each of the remaining connections, one at a time until the problem returns. The device causing the problem should then become evident and you can begin troubleshooting from there...
After investigating, I found that Switch 1 was connected to Switch 2 from "port to port" instead of "Uplink port to port". After correcting this mistake and rebooting Switch 1, the problem went away. Running without fail 2 days and counting. So far so good...
To confirm this in your situation, try removing all connections to your Switch except the EVL-3 Card and your Uplink to the Router. If the problem goes away, try plugging in each of the remaining connections, one at a time until the problem returns. The device causing the problem should then become evident and you can begin troubleshooting from there...