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Checking of faulty device in network

By ak_banerje ·
We are using Novell Netware 4.11 with 10 user licence at 10Mbps speed. But we face:-
1. Severals times nodes hungs.
2. Sometimes we found that neither Server nor Node is hung but data flow is stopped.

So we need help (or software information) for confirming that what is the main reason for these problems.
-A.K. Banerje

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Checking of faulty device in network

by Another Butthead In reply to Checking of faulty device ...

The first thing I would do is reboot the hub or switch. I have a switch that gets bad ports from time to time. Try another port on the hub or switch. If you cannot reboot it. Ping the other workstations to see them on the network. If you can pingsome and not others the hub still may be at fault but there may be a bad NIC. Check the link lights and data lights, there could be a NIC chattering clogging up the hub. Load monitor on the server and see if there are processor utilization problems or memory.

Sounds like you are running slow anyway @ 10MB you may be moving huge files and it will seem like it hangs but it is really struggling over a slow link. If you are on a small network with lots of peer to peer, you may consider a switch if you don't have one. They are getting cheaper every day.

Are you getting constant activity? Check the traffic on the lights when everybody is idle. Also, if you are using NETBUI protocol on your workstations it is VERY chatty and you may want to use NETBIOS over IPX instead. Check for multiple frame types and protocols. Minimizing them to one or two will improve memory mangement on the w/s as well. You may have a loop on multiple switches and hubs, you could have a broadcast stormor maybe the uplink connected as well as the port it shares. That can hang a network, check the user's desk sometimes they will put in a mini-hub incorrectly and it will hang. Check for a NIC running full-duplex.

This one sounds like a network problem not a server problem.

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Checking of faulty device in network

by ak_banerje In reply to Checking of faulty device ...

The question was auto-closed by TechRepublic

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Checking of faulty device in network

by kelly_aitch In reply to Checking of faulty device ...

Look closely at your hub or switch. If you can, try another hub. Also check your cables and ensure they are in good condition and don't get run over with a chair or trapped under a filing cabinet. Also try different cables.

Make sure the NIC drivers are up to date on both server and clients.

How's the utilization? Do you have adequate memory? If you run anything out of the ordinary, I'd consider it a suspect.

From what you describe, tho', it seems like a cables/NICs/hub problem.

Cheers

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Checking of faulty device in network

by ak_banerje In reply to Checking of faulty device ...

The question was auto-closed by TechRepublic

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Checking of faulty device in network

by brian In reply to Checking of faulty device ...

I recently ran into a similar problem. New file server, new Dell workstations. We would copy a single, large file to the server and it would just stop transferring.

In this case the fix was in front of our eyes. Although their switch was 10/100, it was NOT full-duplex. This was choking the workstations. Once we set everything to half-duplex, it took off.

The strange part is that we could transfer small files, log in normally etc. Start with 10Mbit half-duplex on a workstation and work your way up from there.

Brian

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Checking of faulty device in network

by ak_banerje In reply to Checking of faulty device ...

The question was auto-closed by TechRepublic

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Checking of faulty device in network

by ak_banerje In reply to Checking of faulty device ...

This question was auto closed due to inactivity

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