Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-19 Thread Acee Lindem (acee)
Hi Eric, On 11/18/15, 10:55 AM, "Eric C Rosen" wrote: >Hi Acee, > >> However, it still may be simpler operationally to advertise a Global >> Prefix-SID for a locally attached subnet comprised of nodes offering >> a particular service. > >I don't think I suggested anything that would prevent o

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-18 Thread Eric C Rosen
Hi Acee, However, it still may be simpler operationally to advertise a Global Prefix-SID for a locally attached subnet comprised of nodes offering a particular service. I don't think I suggested anything that would prevent one from advertising a domain-wide prefix-SID for a locally attached

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-17 Thread Acee Lindem (acee)
Hi Eric, On 11/17/15, 12:15 PM, "Eric C Rosen" wrote: >On 11/17/2015 10:31 AM, Stefano Previdi (sprevidi) wrote: >> to me it makes sense to advertise the SRGB along with ANY prefix >> originated by that node, regardless the mask-length. > >But in that case, you don't know who the originator nod

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-17 Thread Eric C Rosen
On 11/17/2015 10:31 AM, Stefano Previdi (sprevidi) wrote: to me it makes sense to advertise the SRGB along with ANY prefix originated by that node, regardless the mask-length. But in that case, you don't know who the originator node is. Could you explain to me how you use an SRGB when you don

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-17 Thread Stefano Previdi (sprevidi)
> On Nov 17, 2015, at 3:52 PM, Eric C Rosen wrote: > > [Eric] Do you have an example in mind where it is useful to advertise > an Originator SRGB when the prefix in the NLRI is not a host > address? > > [Stefano] in fact I don’t have any good example where a /32 (/128) must be > enforced… > >

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-17 Thread Eric C Rosen
[Eric] Do you have an example in mind where it is useful to advertise an Originator SRGB when the prefix in the NLRI is not a host address? [Stefano] in fact I don’t have any good example where a /32 (/128) must be enforced… Well, that's not the question I asked ;-) Given that the SRGB is a pro

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-16 Thread Stefano Previdi (sprevidi)
> On Nov 16, 2015, at 3:44 PM, Eric C Rosen wrote: > > On 11/10/2015 3:00 PM, Acee Lindem (acee) wrote: >> I agree the predominant use case will be advertisement of a loopback. >> However, independent of whether or not the Originator-SRGB TLV is >> included, I see no reason why a BGP Speaker cou

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-16 Thread Eric C Rosen
On 11/10/2015 3:00 PM, Acee Lindem (acee) wrote: I agree the predominant use case will be advertisement of a loopback. However, independent of whether or not the Originator-SRGB TLV is included, I see no reason why a BGP Speaker could not associate a label-index with a locally attached subnet.

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-11 Thread Stefano Previdi (sprevidi)
On Nov 9, 2015, at 5:02 PM, Eric C Rosen wrote: > > On 11/6/2015 8:18 AM, Stefano Previdi (sprevidi) wrote: >> A prefix may have a shorter mask than 32 (or 128) and still be ok for >> the Originator SRGB to be there. > > Stefano, > > On further thought, I wonder if I misunderstood the point of

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-10 Thread Acee Lindem (acee)
Hi Eric, On 11/9/15, 10:22 AM, "spring on behalf of Eric C Rosen" wrote: >Hi Stefano, > >>>If a BGP route is received that contains a Prefix-SID attribute >>>with an >>>Originator SRGB TLV, but the prefix field of the NLRI does not >>>contain a >>>host address, the attribute SHOULD

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-09 Thread Eric C Rosen
On 11/6/2015 8:18 AM, Stefano Previdi (sprevidi) wrote: A prefix may have a shorter mask than 32 (or 128) and still be ok for the Originator SRGB to be there. Stefano, On further thought, I wonder if I misunderstood the point of your question. If all the addresses falling under a given prefi

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-09 Thread Eric C Rosen
Hi Stefano, If a BGP route is received that contains a Prefix-SID attribute with an Originator SRGB TLV, but the prefix field of the NLRI does not contain a host address, the attribute SHOULD be regarded as malformed. If a Prefix-SID attribute contains more than one SRGB TLV, it SHOU

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-06 Thread Stefano Previdi (sprevidi)
Hi Eric, the proposed text looks good but with one question below. On Oct 22, 2015, at 10:16 PM, Eric C Rosen mailto:ero...@juniper.net>> wrote: I'd like to make some suggestions for textual changes to sections 3.1 and 4.3 of draft-ietf-idr-prefix-sid. The main purpose of these suggestions is

Re: [spring] [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

2015-11-03 Thread Stefano Previdi (sprevidi)
Hi Eric, sorry for coming back late to you. I’ll go through our suggestions asap. Thanks. s. > On Oct 22, 2015, at 10:16 PM, Eric C Rosen wrote: > > I'd like to make some suggestions for textual changes to sections 3.1 and > 4.3 of draft-ietf-idr-prefix-sid. The main purpose of these sugges