[j-nsp] Juniper/Cisco and Aggregated Ethernet

[Erdem Sener]

 Hello,

  As far as I know you cannot set duplex/speed parameters on a
ethernet contributing to an aggregated interface. Also, I don't think
this is necessary on Juniper side.

 Assuming your switch is Cisco as well, you could define speed/duplex
parameters on the switch, which works fine for us on production.

 Aggregated ethernet interfaces are a good way for load balancing
across multiple ethernet/sonet interfaces but CoS is newly implemented
(I guess starting from 7.3). Also, when you add a new interface on the
bundle, you'll probably want to increment your speed setting in aeX.X,
which will end up resetting the bundle.

 HTH
 Erdem

On 10/30/05, Jee Kay <jeekay at gmail.com> wrote:
> I'm just testing using 802.3ad between our Junipers and Ciscos where
> applicable, and was wondering if it is possible to set the duplex mode
> on the physical links? Normally I have a configuration group that
> applies 100/full to all our FE interfaces, but as soon as I put them
> in an aggregated group it appears you aren't allowed to set link-mode
> on the interfaces directly, and there is no place to configure it
> within the ae interface.
>
> Anyone know what happens in this case? We've had bad experiences with
> one side being full and the other on auto, with bad packet
> loss/general problems under load, so I want to make sure it's going to
> be ok :)
>
> On a side note, are people using this functionality in production? How
> are you finding it? What are the switchover times like when a physical
> link fails?
>
> Thanks in advance,
> Ras
>
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