[NTLUG:Discuss] Strange Network Problem(s) on RedHat 7.1

[Jack Snodgrass]

run ifconfig and see if you have a lot of ethernet errors or 
collisions. 

This box has been up for 42 days:
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9780959 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11163252 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          Interrupt:17 Base address:0xd000 
no bad packets received in 42 days. 

If you have a lot of errors or collisions, you may have a bad card 
or cable. 

jack



----- Original Message ----- 
From: "George E. Lass" <George.Lass at osc.com>
To: "ntlug" <discuss at ntlug.org>
Sent: Wednesday, July 11, 2001 4:26 PM
Subject: [NTLUG:Discuss] Strange Network Problem(s) on RedHat 7.1


> I am having some really strange network problems with a new server that
> I have just finished building with RedHat 7.1.  In short, I'm having
> problems with both the FTP & NFS server programs on that system.  For
> example, an attempt to FTP a file of 81920 bytes to the PC took nearly
> 2 and a half minutes:
> 
> 81920 bytes sent in 149 secs (0.54 Kbytes/sec)
> 
> Transferring the file from the RH7.1 box back was much quicker:
> 
> 81920 bytes sent in 0.22 secs (3.6e+02 Kbytes/sec)
> 
> 
> An attempt to transfer another file of 16384 bytes via NFS resulted in
> an I/O error:
> 
> cp: ./ipgw.tar: Input/output error
> 
> Going in the other direction with the same file produced no errors and
> was completed
> in the "blink of an eye".
> 
> I suspect that it most likely has something to do with the fact that 
> both the client and server PC's are on a 10.2.1.X network, but other
> than that I have no idea what could be wrong.  BTW the other PC that I
> was using
> in the test runs RH6.1
> 
> Any ideas?
> 
> George
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