Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread Stefano Previdi (sprevidi)
> On Jun 12, 2017, at 4:05 PM, bruno.decra...@orange.com wrote: > > Hi Stefano, > >> From: Stefano Previdi (sprevidi) [mailto:sprev...@cisco.com] > Sent: >> Monday, June 12, 2017 3:52 PM >> >> Hi Rob, >> >> sorry for the mess. I’m afraid, the problem has been poorly described. >> >> We’re o

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread Peter Psenak
Stefano, Rob, the question is about the "usage of the SID/Label Binding TLV", not about the Binding SID concept. I don't know how to better describe the problem. In ISIS SR draft SID/Label Binding TLV has two functions: 1. Advertise the SID/Label binding to a FEC 2. SRMS advertisements In O

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread bruno.decraene
Hi Stefano, > From: Stefano Previdi (sprevidi) [mailto:sprev...@cisco.com] > Sent: Monday, > June 12, 2017 3:52 PM > > Hi Rob, > > sorry for the mess. I’m afraid, the problem has been poorly described. > > We’re obviously NOT questioning the use of the Binding SID and we’re NOT > propo

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread Acee Lindem (acee)
Hi Bruno, From: Bruno Decraene mailto:bruno.decra...@orange.com>> Date: Monday, June 12, 2017 at 9:37 AM To: Acee Lindem mailto:a...@cisco.com>>, "draft-ietf-ospf-segment-routing-extensi...@ietf.org" mailto:draft-ietf-ospf-segment-rou

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread Stefano Previdi (sprevidi)
Hi Rob, sorry for the mess. I’m afraid, the problem has been poorly described. We’re obviously NOT questioning the use of the Binding SID and we’re NOT proposing the removal of it. What we’re talking about is the set of RSVP-like/ERO-like subTLVs that have been defined in both isis and ospf pr

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread bruno.decraene
Hi Acee, authors 2 clarification questions inline [Bruno] From: OSPF [mailto:ospf-boun...@ietf.org] On Behalf Of Acee Lindem (acee) Sent: Friday, June 09, 2017 4:46 PM To: OSPF WG List; spring@ietf.org; isis...@ietf.org Cc: draft-ietf-ospf-segment-routing-extensi...@ietf.org Subject: Re: [OSPF] O

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread Rob Shakir
Bruno, SPRING, I am aware of at least one implementation that makes heavy use of Binding SIDs, so I do not think that this is something that we can remove from the protocol specification. It seems to me that we have a number of cases that continue to exist that make it useful to have them specifie

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread Jeff Tantsura
Hi, I have got pretty much same view as Acee. There are many application (future, to my knowledge no products) for which the concept of Binding SID (anchor node) is central, I’m aware of ISIS implementation, didn’t see OSPF. Currently, I don’t see any use to ERO extensions, perhaps could be re

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread Acee Lindem (acee)
Hi Bruno, Here is my view. On 6/12/17, 8:50 AM, "spring on behalf of bruno.decra...@orange.com" wrote: >Hello SPRING WG, > >I'd like to encourage discussion on this thread. > >The related questions seem to be: >- Binding SIDs: > - Is there any implementation? > - Is it useful? >

Re: [spring] [OSPF] OSPFv2 Segment Routing Extensions ERO Extensions (would also effect OSPFv3 and IS-IS) - REPLY TO THIS ONE

2017-06-12 Thread bruno.decraene
Hello SPRING WG, I'd like to encourage discussion on this thread. The related questions seem to be: - Binding SIDs: - Is there any implementation? - Is it useful? - Does it need to be specified? - Binding SIDs advertised in IGP: - Is there any implementation?