From: Don Dettmore (don@xxxxxxxxxxxxx)
Date: Mon May 06 2002 - 09:32:20 GMT-3
Jeff
Your symptoms are almost always the result of a duplex mismatch. Try to
always hard-set your speed and duplex setings - auto-negotiate tends to be a
bit unreliable.
Don Dettmore
CCIE 8555
----- Original Message -----
From: "Jeff Szeto" <jytszeto@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Monday, May 06, 2002 12:30 AM
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
>
> Jeff
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:58:51 GMT-3