Route Server Filters at IXPs and 4-byte ASNs

2014-02-06 Thread Aris Lambrianidis
Food for thought: - ASNs can be reused at different locations by IXPs, barring perhaps certain business or administrative reasons. Ask Equinix. - For IXPs that already have 16-bit ASNs for route servers, this saves additional allocations from RIRs and mitigates concerns for the IXP getting pote

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-05 Thread Jared Mauch
On Feb 5, 2014, at 9:21 AM, Jeffrey Haas wrote: > The wide comms draft (and flex comms, where some of the ideas were pulled in > from) was intended to address the messier case where the meaning of a > community was already structured. To pick on one of the items in the list: > http://www.onesc.

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-05 Thread Jeffrey Haas
On Wed, Feb 05, 2014 at 09:02:52AM -0500, Jared Mauch wrote: > > On Feb 5, 2014, at 8:52 AM, Jeffrey Haas wrote: > > >> This draft does not cater for the use case of describing a 32-bit ASN > >> peering > >> with a 32-bit route server, which would require a 4-byte Global > >> Administrator > >

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-05 Thread Jared Mauch
On Feb 5, 2014, at 8:52 AM, Jeffrey Haas wrote: >> This draft does not cater for the use case of describing a 32-bit ASN peering >> with a 32-bit route server, which would require a 4-byte Global Administrator >> as well as a 4-byte Local Administrator sub-field. > > I think that's the first cl

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-05 Thread Jeffrey Haas
Martin, On Wed, Feb 05, 2014 at 10:06:31AM +0100, Martin Pels wrote: > > Wide communities is the wrong tool here. You want this: > > http://tools.ietf.org/html/draft-ietf-idr-as4octet-extcomm-generic-subtype-06 > > This draft does not cater for the use case of describing a 32-bit ASN peering > wi

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-05 Thread Randy Bush
> The token to simplify is currently mine. The messy bit was an attempt > to try to push policy algebra into the packet format. jeezus! > Cleaning up the document will take probably another two rounds but a > terse description of where it should be going is "template based > structured communitie

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-05 Thread Martin Pels
Jeffrey, On Tue, 4 Feb 2014 22:53:40 -0500 Jeffrey Haas wrote: > > > Sent from my iPad > > > On Jan 25, 2014, at 1:37 PM, Nick Hilliard wrote: > > > >> On 25/01/2014 15:48, Sebastian Spies wrote: > >> To make things worse: even if the IXPs ASN is 2-byte, I would assume, > >> that RS impleme

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-04 Thread Jeffrey Haas
Sent from my iPad On Jan 25, 2014, at 5:50 PM, Randy Bush wrote: >> http://tools.ietf.org/search/draft-raszuk-wide-bgp-communities-03 >> To me, that draft looks hugely complicated, like everything you >> could possibly think of was thrown in. > > > > do we have a chat with robert or push an

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-02-04 Thread Jeffrey Haas
Sent from my iPad > On Jan 25, 2014, at 1:37 PM, Nick Hilliard wrote: > >> On 25/01/2014 15:48, Sebastian Spies wrote: >> To make things worse: even if the IXPs ASN is 2-byte, I would assume, >> that RS implementors chose to interpret extended community strings as >> always being in the format

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-26 Thread Valdis . Kletnieks
On Sat, 25 Jan 2014 14:56:16 +0100, Sebastian Spies said: > ASNs. First of all, we have no data or experience about 4-byte ASN > adoption and are therefore unable to evaluate, if we should rush for the > last available numbers. 2-byte ASN depletion - the other white meat pgpGzY2hmFQkH.pgp

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Nick Hilliard
On 25/01/2014 22:50, Randy Bush wrote: > do we have a chat with robert or push an alternative so that the wg is > pushed to compromise? i get the impression that Robert realises that the current draft is unworkably complicated. Nick

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Randy Bush
> http://tools.ietf.org/search/draft-raszuk-wide-bgp-communities-03 > To me, that draft looks hugely complicated, like everything you > could possibly think of was thrown in. do we have a chat with robert or push an alternative so that the wg is pushed to compromise? randy

RE: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Jakob Heitz
contained just useful stuff. -- Jakob Heitz. Date: Sat, 25 Jan 2014 18:37:42 + From: Nick Hilliard To: Sebastian Spies , nanog@nanog.org Subject: Re: Route Server Filters at IXPs and 4-byte ASNs Message-ID: <52e40476.20...@foobar.org> Conten

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Nick Hilliard
On 25/01/2014 15:48, Sebastian Spies wrote: > To make things worse: even if the IXPs ASN is 2-byte, I would assume, > that RS implementors chose to interpret extended community strings as > always being in the format 4-byte:2-byte (see RFC5668). some ixp operators (e.g. me) are rather enthusiastic

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Sebastian Spies
Am 25.01.2014 16:38, schrieb Bryan Socha: > Re-reading, I was thinking of someone connecting to an IXP, not a new > IXP needing a 2Byte.This is an interesting situation and you are > correct, my comment was off topic. Sorry for not mentioning the beef: Extended Communities effectively leave 6

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Bryan Socha
Re-reading, I was thinking of someone connecting to an IXP, not a new IXP needing a 2Byte.This is an interesting situation and you are correct, my comment was off topic. *Bryan Socha* Network Engineer 646.450.0472 | *br...@serverstack.com * *ServerStack* | Scale Big On Sat, Jan 25, 2014 a

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Job Snijders
On Sat, Jan 25, 2014 at 10:04:30AM -0500, Bryan Socha wrote: > I have over 100,000 servers located in routing diverse datacenters > with 4byte ASN numbers and have not had 1 problem or complaint related > to the ASN for not able to communicate with the datacenter. The first > 1 did make me really

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Bryan Socha
I have over 100,000 servers located in routing diverse datacenters with 4byte ASN numbers and have not had 1 problem or complaint related to the ASN for not able to communicate with the datacenter. The first 1 did make me really nervous for all of the reasons already mentioned but turned out to be

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Job Snijders
Dear Sebastian, On Sat, Jan 25, 2014 at 02:56:16PM +0100, Sebastian Spies wrote: > So here's the thing: IXPs usually implement N:M filtering based on > standard community strings. As standard BGP communities support only 4 > bytes, this only works for IXPs with 2-byte ASNs and peers with 2-byte >

Re: Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Rubens Kuhl
> > What happens, if the IXP uses a 4-byte ASN? RFC5668 (4-Octet AS Specific > BGP Extended Community) defines : 2bytes>. > > I have been asking some IXP operators, about their practice and their > reply was "4-byte ASNs are supported by our RS". What's your experience? > Did you see IXPs, that do

Route Server Filters at IXPs and 4-byte ASNs

2014-01-25 Thread Sebastian Spies
Hi there, as 2-byte ASNs are close to depletion (see NRO announcement this week), we have come across a topic, that might influence the adoption of 4-byte ASNs. First of all, we have no data or experience about 4-byte ASN adoption and are therefore unable to evaluate, if we should rush for the las