Re: Does bonding driver support 802.3ad "port-priority"?

Linux Advanced Routing and Traffic Control

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Jay,

thanks for confirming this!


regards,
Martin

On Fri, Jun 2, 2017 at 10:25 PM, Jay Vosburgh
<jay.vosburgh@xxxxxxxxxxxxx> wrote:
> Martin T <m4rtntns@xxxxxxxxx> wrote:
> [...]
>>does Linux bonding driver support 802.3ad "port-priority" feature? For
>>example in Cisco devices one can assign a "lacp port-priority" to each
>>port on a device running LACP. The port priority is used to decide
>>which ports should be put in standby mode when a hardware limitation
>>or the "lacp max-bundle" command configuration prevents all compatible
>>ports from aggregating. Such feature is also supported for example on
>>Juniper gear. Based on "Linux Ethernet Bonding Driver HOWTO" bonding
>>driver does not seem to support this feature..
>
>         No, it doesn't.  All bonding slaves are set to port priority
> (Actor_Port_Priority) of 255, and bonding has no equivalent to the
> max-bundle option.  The LAG selection logic described in 802.1AX 5.6.1
> is not implemented, as bonding does not restrict the size of an
> aggregation.
>
>         -J
>
> ---
>         -Jay Vosburgh, jay.vosburgh@xxxxxxxxxxxxx
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