[plug] Ethernet Bonding

Adrian Chadd adrian at creative.net.au
Thu Oct 18 19:51:15 WST 2007


Then run STP and bridging, then just treat one interface as down
and one as up.

I remember there being a tweak in the stuff you're probably using
under Linux to dictate which interface(s) traffic goes out.
Ask me after exams. :)



Adrian

On Thu, Oct 18, 2007, Adrian Woodley wrote:
> Only if you're doing link aggregation (which I'm not), not 
> active-standby (which I am).
> 
> With active-standby, the switch(es) should only see traffic from one 
> interface (and therefore one mac-address). If the primary link fails, 
> traffic will start emanating from the standby interface. Regardless of 
> whether the mac-address is the same (no arp needed, but switch(es) have 
> to re-learn mac/switchport relationship) or different (switch should 
> already know mac-address of standby, but hosts will need to re-arp for 
> mac to IP relationship) there is no special config needed on the switch(es).
> 
> The problem I'm looking to avoid the problems caused by traffic leaving 
> a standby interface with a source mac-address of the bond interface. 
> This will cause the switch to (incorrectly) associate that mac-address 
> with the standby interface / switchport.
> 
> Adrian
> 
> Senectus . wrote:
> >
> >On 18/10/2007, *Adrian Woodley* <Adrian at screamingroot.org 
> ><mailto:Adrian at screamingroot.org>> wrote:
> >
> >    By default, all interfaces in a bond group will be assigned the MAC
> >    address of the first slave interface.
> >
> >    Does anyone know a way to have each interface retain its own MAC,
> >    including the bond interface itself? 
> >
> > 
> >Uh, I might be thinking of the wrong thing here, but doesn't that depend 
> >on the capability of your switch?
> >
> >
> >
> >-- 
> >Ubuntu Dapper 7.04
> >The less you know, the more you believe. - Bono
> >
> >
> >------------------------------------------------------------------------
> >
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> 
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