On September 15, 2008 02:00:15 pm Jeff Garzik wrote:

On Mon, Sep 15, 2008 at 01:35:16PM -0400, Alex Sidorenko wrote:

quoted

Hello,

I suspect that there are some problems while switching slaves manually on
IPv6-only bonds. I have tested that this does not work on 2.6.18 kernel
(RHEL5). I looked at recent sources (2.6.26) and even though there were
multiple changes in bonding code, I still don't see how this could work.

Testing setup
-------------

Two ethernets enslaved (eth2 and eh3), active-backup bond has IPv6-only
address (no IPv4)

Everything works fine, but if we switch the slave doing

# ifenslave -c bond0 eth3

the incoming ping6 to this host stops for up to several minutes (waiting
until the switch updates its caches).

We _just_ put in an IPv6 fix, FWIW...

Hi Jeff,

do you mean the patch for ALB/TLB bonds? I looked at it but I still don't 
understand how this helps for active-backup case.

Alex


-- 
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Alexandre Sidorenko             email: alexs@hplinux.canada.hp.com
Global Solutions Engineering:   Unix Networking
Hewlett-Packard (Canada)
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