Network problems in a domain....

[gicio]

Hi!!

we have a little network problem in our doamain.
on some pc comes files with CRC errors!??!
for this reason
I'm looking for some "GOOD" tools to analyzing our network.
The network include:

Windows 2000 servers + Windows 2003 server + Windows 2000 Workstations.


Can someone give me some tips for a good analyzing application that
I can use to check the problem!?


thx



gicio

[Big Booger]

A Cyclic Redundancy Check (CRC) Error is an RMON statistic that combines "FCS Errors" and "Alignment Errors". These errors indicate that packets were received with:


A bad FCS and an integral number of octets (FCS Errors)

A bad FCS and a non-integral number of octets (Alignment Errors)
CRC Errors can cause an end station to freeze. If a large number of CRC Errors are attributed to a single station on the network, replace the station's network interface board. Typically, a CRC Error rate of more than 1 percent of network traffic is considered excessive.


Are you getting these errors throughout your network? Or are they localised to one machine?

How are these machines connected? Wireless? Ethernet? USB? Switches, Hubs or Routers? etc..

Are you looking at software that can analyze traffic, as in thoroughput, packet loss, etc...?

[gicio]

- the error are localised to min. 3 machines.

- Ethernet , Hubs (connected)

- looking for some tools to analize what I get CRS errors on those
machines.




gicio

[Big Booger]

Do you happen to have spare NICs lying around? I'd say try exchanging the NICs on the machines that you are having issues with if you can. If not, I'll try to hunt you down a tool that may be able to help.

[gicio]

I have exchange the NICs.
and still the same problem.

I need you tool :D



gicio

[Big Booger]

http://www.wildpackets.com/products/etherpeek_nx/system

Try that tool, they have a demo available as well:

http://www.wildpackets.com/products/demos/epwnx

[gicio]

thanks!!!!


gicio