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From: Stephen Hemminger <shemminger@linux-foundation.org>
To: Fernando Rodriguez <frod@aitelecom.net>
Cc: bridge@linux-foundation.org
Subject: Re: [Bridge] UDP Framgment
Date: Mon, 16 Apr 2007 19:41:37 -0700	[thread overview]
Message-ID: <20070416194137.520714d8@localhost.localdomain> (raw)
In-Reply-To: <006901c78082$847f7d80$8d7e7880$@net>

On Mon, 16 Apr 2007 18:54:04 -0500
"Fernando Rodriguez" <frod@aitelecom.net> wrote:

> Hello,
> 
>  
> 
> I currently run a bridge with mastershaper but I im having somme issues
> regarding the udp packets that are fragmented is seems that they are unable
> to cross the bridge as they should they reach the other side of the network
> unusable, I have been trying to read regarding this issue on internet but
> couldn't find any answers.
> 

Bridges don't fragment themselves. They drop packets if MTU is different.
That is part of the standard.


> 
> Those udp packets are sent via multicast on the network
> 
>  
> 
> Im currently running Kernel  2.6.18.3 and bridge utils bridge-utils-1.0.4-4.

There maybe issues with checksum offload with some drivers in that kernel
Try turning it off in the ethernet driver (see ethtool)
driver.

  reply	other threads:[~2007-04-17  2:41 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-16 23:54 [Bridge] UDP Framgment Fernando Rodriguez
2007-04-17  2:41 ` Stephen Hemminger [this message]
2007-04-17 11:36 ` Patrick McHardy

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