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From: Rick Jones <rick.jones2@hp.com>
To: John Lumby <johnlumby@hotmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>,
	WeipingPan <panweiping3@gmail.com>,
	netdev@vger.kernel.org
Subject: Re: Is 802.3ad mode in bonding useful ?
Date: Fri, 29 Apr 2011 08:21:02 -0700	[thread overview]
Message-ID: <1304090462.9358.1617.camel@tardy> (raw)
In-Reply-To: <4DBAC552.507@hotmail.com>

> >> What is looped back frames here ?
> > In this case they are frames that get received by the bond, which the bond
> > itself sent.  In modes where more than one slave is active, and in which the
> > switch has no additional knoweldge of the aggregate (e.g. round robin mode), the
> > bond can send a frame on one slave, which the switch may broadcast to all ports,
> 
> 
> Isn't this (broadcasting or repeating on all ports other than incoming) 
> more associated with simple hubs rather than switches?     I would think 
> any switch with layer 2 capability does not do that (does it?)

Perhaps when a frame is sent via the bond to a destination MAC not yet
learned by the switch?  

Until a switch sees a MAC as a src, it does not know to which port the
frame(s) should be forwarded, so it must send the frame out all ports
but the ingress port.

rick jones


  reply	other threads:[~2011-04-29 15:21 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-28  7:33 Is 802.3ad mode in bonding useful ? WeipingPan
2011-04-28 12:21 ` Neil Horman
     [not found]   ` <0FBC7C9C2640634A8B837C2EFFCFF32F0184732D72@SHEXMB-01.global.atheros.com>
2011-04-28 13:23     ` 答复: " Neil Horman
2011-04-29  3:17   ` WeipingPan
2011-04-29 10:43     ` Neil Horman
2011-04-29 13:59       ` WeipingPan
2011-04-29 14:04       ` John Lumby
2011-04-29 15:21         ` Rick Jones [this message]
2011-04-29 17:01       ` Jay Vosburgh

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