[CentOS] Interface bonding?

Fri Apr 11 21:39:23 UTC 2008
John <jses27 at gmail.com>

On Fri, 2008-04-11 at 17:23 -0400, Ross S. W. Walker wrote:
> Les Mikesell wrote:
> > Ross S. W. Walker wrote:
> > > > 
> > > I don't think you need to do all that:
> > > 
> > > Check out: 
> > http://www.cisco.com/en/US/docs/switches/lan/catalyst2900xl_3500xl/release12.0_5_wc3/swg/Swgports.html
> > > 
> > 
> > 	
> > I've run 2900xl's connected to each other though 2 ports each 
> > configured 
> > with:
> > port group 1 distribution destination
> > but never tried it with anything non-cisco.
> 
> This should give you what you need when doing 802.3ad LAGs:
> 
> interface FastEthernet0/21
>  port group 1
>  spanning-tree portfast
> !
> interface FastEthernet0/22
>  port group 1
>  spanning-tree portfast
> !
> 
> It might have been the lack of STP portfasting that gave you
> trouble initially as the Linux LACP might have timed out
> waiting for STP discovery to finish.
> 
> Here is a good wiki article on link aggregation:
> http://en.wikipedia.org/wiki/Link_aggregation

I did not know linux used a higher part of the networking stack to
negotiate protocols. That's interesting.

> 
> And here is a good site on Linux bonding interface:
> http://www.linux-foundation.org/en/Net:Bonding
> 
> You only need to setup port groups when doing 802.3ad, if
> you use the other methods you may need to tune out the
> 2900XL for the constantly shifting MAC addresses.
> 
> -Ross
> 
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-- 
~/john

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