Order of BGP communities

Pavlos Parissis pavlos.parissis at gmail.com
Tue Jun 13 13:48:12 CEST 2017


On 13/06/2017 01:46 μμ, Ondrej Zajicek wrote:
> On Wed, Jun 07, 2017 at 03:49:35PM +0200, Pavlos Parissis wrote:
>> Hi,
>>
>> Today, we noticed a difference in the order that communities were added between 1.6.3 and 1.4.5 version.
>>
>> Does anyone know why ?
> 
> It is true, one reason is that to have that consistent with extended and
> long communities. Another reason is that append is a bit more natural, if
> you add several communities and then show it, you end with the same
> order.
> 
> Also note that order of communities is not significant and in the future
> we perhaps end with sorted community attributes.
> 

Thanks for the clarification.

Cheers,
Pavlos

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