Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-09-01 Thread Fomin, Sergey (Nokia - US/Mountain View)
results in adj-sid push. Best Wishes Thomas From: Fomin, Sergey (Nokia - US/Mountain View) Sent: Monday, August 24, 2020 4:08 AM To: Ketan Talaulikar (ketant) ; Graf Thomas, INI-NET-DCF Cc: l...@ietf.org; spring@ietf.org; ops...@ietf.org Subject: RE: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-typ

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-09-01 Thread Thomas.Graf
understand the constraints of IPFIX. Best Wishes Thomas From: Fomin, Sergey (Nokia - US/Mountain View) Sent: Monday, August 24, 2020 4:08 AM To: Ketan Talaulikar (ketant) ; Graf Thomas, INI-NET-DCF Cc: l...@ietf.org; spring@ietf.org; ops...@ietf.org Subject: RE: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-09-01 Thread Thomas.Graf
Hi Ketan, Thanks a lot for the feedback. So far Sergey feedbacked in favor to keep IE46 and SrSidType being separate. Lets see which opinion others have on the list. * Also, from an operational perspective (looking holistically), we have LSP ping/trace tools specified for MPLS (including S

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-23 Thread Fomin, Sergey (Nokia - US/Mountain View)
tf.org; spring@ietf.org; ops...@ietf.org Subject: Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type Hi Thomas, Thanks for your response. Let us also wait for inputs from others in the WGs. One small bit. [KT] By giving different types for OSPF and ISIS, is the intention to troubleshoot routing pref

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-18 Thread Ketan Talaulikar (ketant)
Hi Thomas, Thanks for your response. Let us also wait for inputs from others in the WGs. One small bit. [KT] By giving different types for OSPF and ISIS, is the intention to troubleshoot routing preference selection (done based on "admin distance" between protocol selection in RIB)? Thomas> "a

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-18 Thread Thomas.Graf
Hi Ketan, Thank you very much for the feedback. [KT] Why not extend the existing IPFIX MPLS Label Type (value 46) to add SR Prefix SID, SR Adjacency SID, SR Binding SID ... (basically the segment types from RFC8402)? It's a simpler change to an existing element/field that makes it easier for r

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-16 Thread Ketan Talaulikar (ketant)
Hi Thomas, Please check inline below. From: thomas.g...@swisscom.com Sent: 15 August 2020 11:31 To: Ketan Talaulikar (ketant) ; han...@gredler.at Cc: l...@ietf.org; spring@ietf.org; ops...@ietf.org Subject: RE: [Lsr] draft-tgraf-ipfix-mpls-sr-label-type Hi Ketan, * This helps identificati

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-16 Thread Tianran Zhou
Hi Thomas, I think questions from both Ketan and Gyan on the IE usage are very important. The value should be described clearly in the draft. So that people now how to implement and use them. Here your replay to Ketan on the mplsTopLabelType is clear to me. You want to account the traffic with

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Thomas.Graf
Hi Ketan, * This helps identification of specific SR-MPLS segment types as well as differentiating them from LDP, RSVP-TE, etc. To be precise, the existing MPLS Label Type identifier differentiates from LDP, RSVP-TE. Not the new SrSidType IPFIX IE being proposed. * What value is prov

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Gyan Mishra
Ketan >From an operations perspective at the end of the day the job of IPFIX is to support the various data plane encapsulation types so that the flow graph and fields flow data records can be constructed. So here as long as you are able to capture the flow records, and record the flows over the

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Ketan Talaulikar (ketant)
Hi Thomas, I should have been more clear in my email. The proposal/suggestion is to add the following to the IPFIX MPLS Label type identifier registry: * SR Prefix SID * SR Adjacency SID * SR Binding SID * SR BGP Peering SID * ... and so on This helps identification of spec

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Thomas.Graf
f Tantsura Sent: Friday, August 14, 2020 8:54 PM To: Graf Thomas, INI-NET-DCF ; han...@gredler.at; Ketan Talaulikar (ketant) Cc: l...@ietf.org; SPRING WG Subject: Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type In general, I agree with what Ketan said, what's important - it is the

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Thomas.Graf
Hi Ketan, Thank you very much for the review and feedback. * What or how much value be there on determining whether a SR Prefix SID was signalled/programmed on a node via OSPFv2/OSPFv3/ISIS - what matters and is more important is that it is a Prefix SID. Hardly any deployments would be ru

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Gyan Mishra
I agree with Kethan and Jeff. This draft is extending IPFIX defined in RFC 7011 7012 to support SR segments over IP export. Since SR-MPLS reuses the MPLS data plane, why would the existing IPFIX RFCs also not support SR-MPLS without having to dig into IGP control plane extensions as from an IPFIX

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Jeff Tantsura
In general, I agree with what Ketan said, what’s important - it is the value that is being used in forwarding, even if multiple control plane entries exist, think about IGP migrations, or LDP to SR, where more than 1 protocol could be distributing the labels/SIDs. I’m not sure the FIB is the rig

Re: [spring] [Lsr] draft-tgraf-ipfix-mpls-sr-label-type

2020-08-14 Thread Ketan Talaulikar (ketant)
< also copying Spring WG for their review/inputs > Hi Thomas/All, I have reviewed the draft and would like to share a different perspective. What or how much value be there on determining whether a SR Prefix SID was signalled/programmed on a node via OSPFv2/OSPFv3/ISIS - what matters and is mo