Little-Miss Posted January 4, 2011 Posted January 4, 2011 I'm struggling with this still. Following on from my rant in Behind the Red door my network seems to be running very slow. I get these blips every so often and have no clue what it is! I've tried Wireshark but i have no idea what any of it mean or if im using it right, so any help would be great appreaciated. Getting like 50/75% packet loss when i ping the DC from a client. Happens with my other server and the admin server too:confused:. Any ideas? *climbs back under her desk*
Little-Miss Posted January 4, 2011 Author Posted January 4, 2011 oh and RDP seems to be hit and miss too...
GREED Posted January 4, 2011 Posted January 4, 2011 Your not running a network asset scan (SpiceWorks), downloading Windows updates, AV updates, or the likes that will be hulking the bandwidth? SpiceWorks used to kill the network if done at the right time of day! 1
andydis Posted January 4, 2011 Posted January 4, 2011 do you have managed switches to check if you have not got a network loop? have a look at solarwinds orion to test network performance ( free 60 day trial) 1
Little-Miss Posted January 4, 2011 Author Posted January 4, 2011 Hmmm....I do have spiceworks installed... if i shall check...
Domino Posted January 4, 2011 Posted January 4, 2011 Do you get the same behaviour to clients on different switches? maybe its a switch issue any logging/management available on it? 1
Little-Miss Posted January 4, 2011 Author Posted January 4, 2011 The switches keep popping into my mind.. These are LA switches so i dont really have a lot to do with them. Am i right in thinking they can be managed remotely by Link2ICT? Sorry, i'm still a novice when it comes to switches.
GREED Posted January 4, 2011 Posted January 4, 2011 Do you have any internet routers in the school, like the ones you get for home broadband? The other year we had one plugged in to allow for unrestricted internet (don't ask). We had a power failure and all servers went off (safely) but upon reboot the router came on first and began dishing out DHCP addresses to the network, because it can back before the Windows servers. Gave similar issues to above (although we could not log in at all).
phillock Posted January 4, 2011 Posted January 4, 2011 Are these blips always during the day at certain times?, what you can do is run the mutiny software from Mutiny - Welcome, This is free for education users and gathers the snmp information from switches and servers. i have seen a demo and it looks good and i hope to get it running on my network, as normal the advanced stuff will cost extra but it should give you a few clues. Happy hunting 1
Domino Posted January 4, 2011 Posted January 4, 2011 The switches keep popping into my mind.. These are LA switches so i dont really have a lot to do with them. Am i right in thinking they can be managed remotely by Link2ICT? Sorry, i'm still a novice when it comes to switches. Might be worth asking them? Sorry I've no idea how they deal with management. Might be worth giving them a sneaky reboot as a first port of call?
cpjitservices Posted January 4, 2011 Posted January 4, 2011 I would send them on a reboot (the switches) and see what happens, in this situation it could just be a reset thats needed. What make / model switches are they ? 1
Little-Miss Posted January 4, 2011 Author Posted January 4, 2011 They are HP procurve something or other lol From what i can see so far (unless its teasing me!). Rebooting the master cab seems to have solved the issue, everything seems to be chugging away happily. *fingers crossed so tight they are turning blue*. Would this have been a bottle neck of some sort then if this is the case? Is there something i've done that i can avoid next time? Thanks guys
cpjitservices Posted January 4, 2011 Posted January 4, 2011 No Probs, glad thats worked for you. It may have been a bottle neck, sometimes though if switches have been on for a long time they just need a quick boot up the backside lol. Also, if you do have things that update like Windows or AV Scanners etc etc try and set them up to do it at different times of day or on different days to others this may have been your problem. Hope everything is tip-top now.
mrbios Posted January 4, 2011 Posted January 4, 2011 No Probs, glad thats worked for you. It may have been a bottle neck, sometimes though if switches have been on for a long time they just need a quick boot up the backside lol. . Unless you use cisco in which case they sit there happily forever (or until the hardware physically fails completely) We use procurve switches here and from time to time (maybe once every 6-12 months) one will randomly go loopy, quick reboot normally solves the issue. It's worth making sure you keep the firmwares updated too. 1
cpjitservices Posted January 4, 2011 Posted January 4, 2011 yeah you cant beat Cisco switches for reliability but we run a completely Nortel network here and one of our switches currently has a 12+ month uptime so again some good switches we use 450-t and 5510's. As for pro-curves I've not had that much experience with them.
Little-Miss Posted January 4, 2011 Author Posted January 4, 2011 BGFL gave them to us! (I think the story was they bought a load of the wrong model so gave them to the schools!) lol
cpjitservices Posted January 4, 2011 Posted January 4, 2011 lol sounds about right. When I first started as a Teccie we had a load of hardware (switches) given by LA at the school. I think they where really basic Bay Networks switches I've no idea which model. Anyway we had about 80-100 machines and to be honest the switches were garbage and wern't functioning properly and I believe were un-managed. We ended up buying the odd switch, the first one we bought was a Nortel and we put it on the network and we could already see the difference it was much more reliable than the other switches. So we thought it best to invest in our own kit and we did, we built a new Cab in the basements and put all our Nortel gear into it and the old Novell RM SafetyNet Proxy in the cab and left it be. We never had an issue from then on using our own kit, eventually the school Network grew and grew and before I left we were running 4 different sites. So may be worth putting in your own kit if you can get a budget 1
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