Date: Wed, 22 Sep 1999 16:42:43 -0400 From: Mitch Collinsworth <mkc@Graphics.Cornell.EDU> To: Mike Tancsa <mike@sentex.net> Cc: questions@freebsd.org, mkc@broccoli.graphics.cornell.edu Subject: Re: how to set fxp0 to half-duplex? [was: nfs tuning] Message-ID: <199909222042.AA278122963@broccoli.graphics.cornell.edu> In-Reply-To: Your message of "Wed, 22 Sep 1999 16:13:13 EDT." <3.0.5.32.19990922161313.01e84c80@staff.sentex.ca>
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>At 03:58 PM 9/22/99 -0400, Mitch Collinsworth wrote:
>>>ifconfig fxp0 media 10BaseT/UTP
>>>ifconfig fxp0 media 10BaseT/UTP mediaopt full-duplex
>>>
>>>No reboot is needed.
>>
>>ackk! It's not auto-sensing! I've been ass_u_ming it was.
>>Why, pray tell, isn't this documented?
>
>I never trust auto-sensing. Tell both ends what they are configured for.
Agreed. I do this wherever I can but some boxes either can't be
nailed down or I haven't discovered how yet. In general I've had
good results by always locking the settings at the switch and letting
the computers I can't control autosense. I mistook fxp0 for another
case of 'defaults to autosense'.
>>>I use lots of fxp cards on a couple of Cat 1900s in 10BaseT Full duplex
>>>mode without any errors. Similarly on the 100BaseT ports in full duplex
>>>Here is a sample in 100BaseT full duplex.
>>>
>>>
>>>-------------------------------------
>>>Total good frames 632711776
>
>>
>>Hey, ethernet counters! How do you get these?
>
>I thought you said you were using a Cisco Catalyst switch ? Just telnet
>into the box (or via the serial console) and view the port stats.
Yes, I've been doing that. Your formatting is completely different
from mine so I thought your counters were from the fxp0 end. Was
that from a 1900 switch? I don't have any of those. My 24xx switches
(except for the 2948G, which is completely different) show counters
like this:
zzzzz#show int f0/5
FastEthernet0/5 is up, line protocol is up
Hardware is Fast Ethernet, address is 0090.abee.1f05 (bia 0090.abee.1f05)
Description: 557a-schilke
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 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 00:00:01, output hang never
Last clearing of "show interface" counters 00:06:02
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 131000 bits/sec, 2 packets/sec
5 minute output rate 4000 bits/sec, 4 packets/sec
9626 packets input, 11282119 bytes, 0 no buffer
Received 2 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 watchdog, 0 multicast
0 input packets with dribble condition detected
4981 packets output, 693845 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
Yours are a lot easier to read!
-Mitch
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