From: Abraham, Ajith (Ajith.Abraham@xxxxxxxxxx)
Date: Mon May 06 2002 - 12:52:59 GMT-3
You may want to check the if there is any duplex mismatch with the server
and the switchport etc.
-----Original Message-----
From: Scott Morris [mailto:swm@emanon.com]
Sent: Monday, May 06, 2002 11:28 AM
To: 'Jeff Szeto'; ccielab@groupstudy.com
Subject: RE: (Long) Network Slow
Being that you're connected to a switch and all.. And with the input
errors you are receiving (mostly CRC's), I would hazard a guess that it
is cable-related. Check the physical layer! You didn't include any
details about that topology in your e-mail, but there are a myriad of
things that can cause intermittant problems on a physical link,
particularly when it begins to be saturated (like opening attachments).
Get a cable scanner!
The next likely problem would be the NIC itself on the server, but this
isn't nearly as likely as the physical cable.
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Jeff Szeto
Sent: Monday, May 06, 2002 12:30 AM
To: ccielab@groupstudy.com
Subject: OT: (Long) Network Slow
Hi Group,
Sorry for this OT thread, but I need help.
My friend's network has a novell file server and an email server. Users
complain sometimes it takes a long time to open a file or an email
attachment. All the PCs and servers are connected via two 3500 switches
which are interconnected via gigabit module.
I check the switches and see the port that connecting to novell server
has many errors (see the show interface below), while the other ports
seems OK.
FastEthernet0/35 is up, line protocol is up
Hardware is Fast Ethernet, address is 0008.a3d0.f863 (bia
0008.a3d0.f863)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters 1d01h
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 225000 bits/sec, 64 packets/sec
5 minute output rate 68000 bits/sec, 61 packets/sec
4839382 packets input, 1992532408 bytes
Received 21073 broadcasts, 0 runts, 0 giants, 0 throttles
24545 input errors, 24545 CRC, 0 frame, 302 overrun, 302 ignored
0 watchdog, 236 multicast
0 input packets with dribble condition detected
7751432 packets output, 3144451132 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
I also use a sniffer to see what is happening. Although not much was
found, I list the major finding below. They appear from time to time and
my lead to the problem. There is no loop on the switches and users have
the permissions for the files.
Source ---> Destination ----- Summary
PC Netware Loops on same request
Netware PC Request Denied
PC Email Ser Ack Too Long
PC Email Ser Window Frozen
Any suggestions are welcome and appreciated.
Thank you in advance
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