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From: Or Gerlitz <ogerlitz@voltaire.com>
To: Jay Vosburgh <fubar@us.ibm.com>
Cc: netdev@vger.kernel.org, rdreier@cisco.com
Subject: Re: bonding questions: "replaying" call to set_multicast_list and sending IGMP doing Fail-Over
Date: Thu, 10 Aug 2006 16:03:54 +0300	[thread overview]
Message-ID: <44DB2EBA.9030809@voltaire.com> (raw)
In-Reply-To: <200608081720.k78HKSZt020293@death.nxdomain.ibm.com>

Jay Vosburgh wrote:
> 	I haven't studied the effects of having large amounts of
> multicast traffic coming in under this situation.
> 
> 	However, I would suspect that the MAC filters found on
> sufficiently modern network adapters would drop the incoming multicast
> traffic on the backup slaves, as only the active slave in active-backup
> mode has its multicast list set.  That information is sent to a slave
> when it becomes the active slave; see the call to bond_mc_swap() made by
> bond_change_active_slave().

OK, i agree the MAC filter would drop the incoming traffic on the backup 
slaves b/c bond_mc_swap() calls bond_mc_delete() on the slave which 
becomes a backup one. But as you have noted there might be some impact 
on the switch.

Or.


      reply	other threads:[~2006-08-10 13:03 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-03  5:59 bonding questions: carrier based link monitoring / slave device state flags Or Gerlitz
2006-08-04  0:19 ` Jay Vosburgh
2006-08-08 13:24   ` Or Gerlitz
2006-08-08 14:05 ` bonding questions: "replaying" call to set_multicast_list and sending IGMP doing Fail-Over Or Gerlitz
2006-08-08 17:20   ` Jay Vosburgh
2006-08-10 13:03     ` Or Gerlitz [this message]

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