RE: Best practices for BGP Communities

2019-03-07 Thread adamv0025
> From: NANOG On Behalf Of Arnold Nipper > Sent: Wednesday, March 6, 2019 6:57 PM > > On 04.03.2019 19:15, John Kristoff wrote: > > On Mon, 4 Mar 2019 01:42:02 + > > Joshua Miller wrote: > > > >> A while back I read somewhere that transit providers shouldn't delete > >> communities unless th

Re: Best practices for BGP Communities

2019-03-06 Thread Christopher Morrow
On Wed, Mar 6, 2019 at 7:53 PM Randy Bush wrote: > > How does one distinguish "informational" and "action" of unknown > > communities? > > "if the community is unknown why would you take any action except to strip it?" > the action ones are divisible by 3 > > > > you are in a twisty maze where

Re: Best practices for BGP Communities

2019-03-06 Thread Randy Bush
> How does one distinguish "informational" and "action" of unknown > communities? the action ones are divisible by 3 you are in a twisty maze where there are no formnally defined semantics, only a #:# syntax. if there were general formal semantics, it could have been put directly in bgp attrib

Re: Best practices for BGP Communities

2019-03-06 Thread Arnold Nipper
On 04.03.2019 19:15, John Kristoff wrote: > On Mon, 4 Mar 2019 01:42:02 + > Joshua Miller wrote: > >> A while back I read somewhere that transit providers shouldn't delete >> communities unless the communities have a specific impact to their >> network, but my google-fu is failing me and I ca

Re: Best practices for BGP Communities

2019-03-06 Thread Joshua Miller
Thanks for all the feedback. Follow up questions: How does one distinguish "informational" and "action" of unknown communities? Also, why would a transit provider go out of their way to remove unknown communities that don't have any meaning within their network? What benefit would it serve the t

Re: Best practices for BGP Communities

2019-03-05 Thread Job Snijders
On Wed, Mar 6, 2019 at 8:32 Smith, Courtney wrote: > On 3/5/19, 6:04 PM, "NANOG on behalf of Job Snijders" > j...@instituut.net> wrote: > > On Sun, Mar 03, 2019 at 08:42:02PM -0500, Joshua Miller wrote: > > A while back I read somewhere that transit providers shouldn't delete > > com

Re: Best practices for BGP Communities

2019-03-05 Thread Smith, Courtney
On 3/5/19, 6:04 PM, "NANOG on behalf of Job Snijders" wrote: On Sun, Mar 03, 2019 at 08:42:02PM -0500, Joshua Miller wrote: > A while back I read somewhere that transit providers shouldn't delete > communities unless the communities have a specific impact to their > network, but

Re: Best practices for BGP Communities

2019-03-05 Thread Job Snijders
On Sun, Mar 03, 2019 at 08:42:02PM -0500, Joshua Miller wrote: > A while back I read somewhere that transit providers shouldn't delete > communities unless the communities have a specific impact to their > network, but my google-fu is failing me and I can't find any sources. > > Is this still the

Re: Best practices for BGP Communities

2019-03-04 Thread John Kristoff
On Mon, 4 Mar 2019 01:42:02 + Joshua Miller wrote: > A while back I read somewhere that transit providers shouldn't delete > communities unless the communities have a specific impact to their > network, but my google-fu is failing me and I can't find any sources. Perhaps you're referring to