You're looking at stats for the device that's reporting high latency/timeouts, but it is probably not the source of the problem, it's just a symptom. One final thing, im seeing a few response time of device minors, getting upwards of 100ms.Īs mentioned, my next wireshark capture i will post to imgur and get your opinions on it. We havent had this kind of issue before and it started around a month ago with the original two switches going offline during that period but is now getting worse. I rebuilt the IMC server yesterday with a new VM and that continued the same behaviour so there is an issue on that network somewhere.Īll our switches are on a management vlan, IMC has 2 NICs to allow monitoring from the curriculum network we are on. I have verified that i can speak with the switches from another machine, switch event logs show no disruptions and no warnings whatsoever about an issue. Having looked at the alarms in the past, some of them are happening within seconds of each other, right now, glancing at IMC i can see six critical alarms all starting within 10 seconds of each other and persisting for around 1 minute and 2 seconds approximately. I have increased the timeout from 2 seconds to 15 seconds, the alarms usually persist for about 1 minute.

We're getting many more switches going down with does not respond to pings now. Wireshark does show an issue where pings are showing port unreachable, i am not very good with wireshark so ill post a screenshot of the errors on my next capture. Here's what i have found over the last few days of messing with IMC and the switches: Unfortunately my hunch with the firmware hasn't panned out.

Wireshark captures for ping