From owner-freebsd-net  Tue Feb 26  5: 0: 3 2002
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Date: Tue, 26 Feb 2002 13:59:57 +0100
From: Yann GROSSEL <y.grossel@hexanet.fr>
To: freebsd-net@FreeBSD.ORG
Subject: dc TX underrun message, again
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Hi,

Thanks to all people who have answered me about my previous
mail (yesterday) about "TX underrun" messages.

Today we put this firewall box in production mode.

Almost immediately, new messages have been logged (as expected) :

Feb 26 13:03:15 blade /kernel: dc2: TX underrun -- increasing TX threshold
Feb 26 13:03:18 blade /kernel: dc2: TX underrun -- increasing TX threshold
Feb 26 13:03:31 blade /kernel: dc2: TX underrun -- increasing TX threshold
Feb 26 13:04:23 blade /kernel: dc3: TX underrun -- increasing TX threshold
Feb 26 13:04:23 blade /kernel: dc3: TX underrun -- increasing TX threshold
Feb 26 13:05:40 blade /kernel: dc3: TX underrun -- increasing TX threshold

But after a few minutes of activity :

Feb 26 13:19:22 blade /kernel: dc3: TX underrun -- using store and forward mode
Feb 26 13:24:33 blade /kernel: dc2: TX underrun -- using store and forward mode

Are these new messages indicating a more serious problem ?
Or is it harmless to ignore them ?

Thanks for any answers

Yann

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