Wired Networks Thread, Dropped Packets in Technical; Okay, a week or so back I started a BTRD thread because a teacher was moaning about what looked like ...
5th February 2014, 03:33 PM #1
Okay, a week or so back I started a BTRD thread because a teacher was moaning about what looked like a Windows Profile issue: http://www.edugeek.net/forums/behind...ml#post1118049
I've been able to look at the problem a little closer, and it appears to be randomly effecting machines just in that one room. If they log off, log back on - the problem is resolved.
So, I'm thinking bandwidth/dropped packet issue on the local switch?
Logged on to the switch and reset all port counters so I can make sense of whats going on. Hour and half later...
Only the uplink port (#49, 1GBps fibre to core switch) is showing any dropped packets. So far it's dropped 79 out of 1.351 billion. No other ports showing any problems so far, no collisions and no other errors.
Where do I go from here?
5th February 2014, 03:46 PM #2
Do you have slow profile detection disabled? That's a very low number of dropped packets anyway, although you might still get a profile timeout if everyone logs in a once.
Thanks to DMcCoy from:
tmcd35 (5th February 2014)
5th February 2014, 03:59 PM #3
No that's currently not configured. Have noticed another setting "Control slow network connection timeout for user profiles" that might be worth altering?
Originally Posted by DMcCoy
Yeah, that's what got me. All evidence suggests slow network/dropped packets - but the switch so far isn't agreeing.
That's a very low number of dropped packets anyway, although you might still get a profile timeout if everyone logs in a once.
5th February 2014, 04:33 PM #4
Don't forget that smb has little in the way of priority for queued requests, there could be a delay from the server end when responding that causes a time out (requests not getting a timely response is the cause of things like delayed write failed with cheaper NAS etc).
Originally Posted by tmcd35
It's worth playing with the timeouts and setting slow link detection to 0 for wired clients to disable it.
5th February 2014, 04:42 PM #5
Yeah, if it was server side I'd expect the same problems to appear in other rooms. It's just that one location.
I'll enable the "diable detection of slow network connections" and see if it has any effect.
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