Date: Fri, 20 Dec 2002 22:10:38 -0500 From: Mike Tancsa <mike@sentex.net> To: Dan Lukes <dan@obluda.cz> Cc: freebsd-current@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG Subject: Re: VLAN v.s. NIC with VLAN hardware support bug. Message-ID: <5.2.0.9.0.20021220220748.064b9598@192.168.0.12> In-Reply-To: <3E03C7BC.9060900@obluda.cz> References: <5.2.0.9.0.20021220164307.060dd470@marble.sentex.ca> <5.2.0.9.0.20021220164307.060dd470@marble.sentex.ca>
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At 02:45 AM 12/21/2002 +0100, Dan Lukes wrote:
>> > At 10:22 PM 20/12/2002 +0100, Dan Lukes wrote:
>>
>> > If there somebody failing to configure vlans on a nic with
>> > vlan-hardware support - read the PR 46405 (patch attached).
>
> > Mike Tancsa wrote, On 12/20/02 22:46:
> > Does this bug show up in the trunk ports statistics as runt
> > packets ?
>
>
> Did you mean the statistics on switch ?
Yes
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 6031000 bits/sec, 877 packets/sec
5 minute output rate 3104000 bits/sec, 1160 packets/sec
1631516276 packets input, 4237296754 bytes
Received 161839 broadcasts, 212836721 runts, 0 giants, 0 throttles
212836725 input errors, 0 CRC, 4 frame, 0 overrun, 84223 ignored
0 watchdog, 0 multicast
0 input packets with dribble condition detected
194910163 packets output, 3947790078 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
> No, it doesn't affect the switch statistic because bug is in
> receive part of FreeBSD driver - it doesn't affect packets sent out to switch.
It doesnt seem to affect performance. When I did some benchmarks way back
with netperf, the difference in vlan performance vs native fxp performance
was barely significant.
---Mike
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Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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