Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-02-03 Thread Les Ginsberg (ginsberg)
Searching the draft there are actually a lot of “Strict-Mode for BFD” w/o “OSPF” preceding it. I agree w Acee’s suggestion – always use “OSPF BFD Strict-Mode”. Les From: Lsr On Behalf Of Acee Lindem (acee) Sent: Thursday, February 3, 2022 9:57 AM To: Ketan Talaulikar Cc: lsr@ietf.org;

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-31 Thread Les Ginsberg (ginsberg)
> I have stated that “IF” additional functionality is required from BFD No one says so, [LES:] Good. Can we end this thread then? [ Les ___ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-31 Thread Les Ginsberg (ginsberg)
, January 31, 2022 11:28 AM To: Robert Raszuk Cc: Ketan Talaulikar ; Les Ginsberg (ginsberg) ; draft-ietf-lsr-ospf-bfd-strict-m...@ietf.org; Acee Lindem (acee) ; Albert Fu ; lsr Subject: Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-31 Thread Les Ginsberg (ginsberg)
From: Robert Raszuk Sent: Monday, January 31, 2022 6:59 AM To: Albert Fu ; Les Ginsberg (ginsberg) ; Ketan Talaulikar Cc: Acee Lindem (acee) ; draft-ietf-lsr-ospf-bfd-strict-m...@ietf.org; lsr Subject: Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-ls

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-31 Thread Les Ginsberg (ginsberg)
adjacency will not come up either – which is exactly the behavior that is desired. Les From: Albert Fu (BLOOMBERG/ 120 PARK) Sent: Monday, January 31, 2022 6:50 AM To: Les Ginsberg (ginsberg) ; ketant.i...@gmail.com; rob...@raszuk.net Cc: Acee Lindem (acee) ; draft-ietf-lsr-ospf-bfd-strict-m

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-30 Thread Les Ginsberg (ginsberg)
:05 AM To: Ketan Talaulikar Cc: Les Ginsberg (ginsberg) ; Acee Lindem (acee) ; draft-ietf-lsr-ospf-bfd-strict-m...@ietf.org; Albert Fu ; lsr Subject: Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04 Hi Ketan, I would like to

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-29 Thread Les Ginsberg (ginsberg)
Robert - From: Robert Raszuk Sent: Saturday, January 29, 2022 12:20 PM To: Les Ginsberg (ginsberg) Cc: Acee Lindem (acee) ; Ketan Talaulikar ; draft-ietf-lsr-ospf-bfd-strict-m...@ietf.org; Albert Fu ; lsr Subject: Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" -

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-29 Thread Les Ginsberg (ginsberg)
Robert – It is good that you take an active interest in this technology – but I think the suggestions you are making should not be targeted at IGP use of BFD. Discussion of how to make BFD failure detection more robust belongs in the BFD WG – and – as you know – that WG has taken an interest

Re: [Lsr] Working Group Last Call for "OSPF Strict-Mode for BFD" - draft-ietf-lsr-ospf-bfd-strict-mode-04

2022-01-28 Thread Les Ginsberg (ginsberg)
I strongly support progression of this document. Equivalent functionality has been defined for IS-IS (RFC 6213) and has proven very useful. Although I am aware that some implementations have achieved the benefits of strict-mode behavior by careful configuration, this suffers from the lack of

Re: [Lsr] How to forward the solutions for "Prefixes Unreachable Notification" problem

2022-01-26 Thread Les Ginsberg (ginsberg)
o consider this scale. I am not going to try to convince you otherwise. But if so you aren’t solving the problem we have been asked to solve. Les > -Original Message- > From: Christian Hopps > Sent: Wednesday, January 26, 2022 2:15 PM > To: Les Ginsberg (ginsberg) > Cc:

Re: [Lsr] How to forward the solutions for "Prefixes Unreachable Notification" problem

2022-01-25 Thread Les Ginsberg (ginsberg)
Greg – With 100K PE scale, we are talking about 100K BFD sessions/PE and close to 5 million BFD sessions network-wide. Eliminating one of the options we are discussing is admittedly a small step, but still worthwhile. However, If you still want to continue to advocate for BFD, I will say no

Re: [Lsr] New Version Notification for draft-li-lsr-liveness-00.txt

2022-01-24 Thread Les Ginsberg (ginsberg)
of Tony’s proposal since he doesn’t think the IGP should be in the business of sending node liveness information. The service itself doesn’t even need to be running on a router at all. Les From: Robert Raszuk Sent: Monday, January 24, 2022 12:33 PM To: Les Ginsberg (ginsberg) Cc: Tony Li

Re: [Lsr] New Version Notification for draft-li-lsr-liveness-00.txt

2022-01-24 Thread Les Ginsberg (ginsberg)
to support. Not the same thing as what you are proposing here. Les From: Tony Li On Behalf Of Tony Li Sent: Monday, January 24, 2022 12:12 PM To: Les Ginsberg (ginsberg) Cc: lsr Subject: Re: [Lsr] New Version Notification for draft-li-lsr-liveness-00.txt Les, My precedent is the use Router

Re: [Lsr] New Version Notification for draft-li-lsr-liveness-00.txt

2022-01-24 Thread Les Ginsberg (ginsberg)
Tony – Inline. From: Tony Li On Behalf Of Tony Li Sent: Monday, January 24, 2022 10:15 AM To: Les Ginsberg (ginsberg) Cc: lsr Subject: Re: [Lsr] New Version Notification for draft-li-lsr-liveness-00.txt Hi Les, Thank you for commenting. I am not enthused about this solution. Full mesh

Re: [Lsr] Fwd: New Version Notification for draft-li-lsr-liveness-00.txt

2022-01-24 Thread Les Ginsberg (ginsberg)
Tony - I am not enthused about this solution. Full mesh isn't appealing at scale. But I recognize this as an alternative which some might find useful in some deployments. I also understand why and find it appropriate that you have introduced discussion of this alternative in LSR. But

Re: [Lsr] WG Adoption Call for draft-wang-lsr-stub-link-attributes-02

2022-01-14 Thread Les Ginsberg (ginsberg)
. So long as we disagree on this fundamental point, we are never going to agree on anything else and rehashing details is a waste of time for everyone. Les From: Aijun Wang Sent: Friday, January 14, 2022 4:10 PM To: Robert Raszuk Cc: Les Ginsberg (ginsberg) ; lsr ; John E Drake Subject

Re: [Lsr] WG Adoption Call for draft-wang-lsr-stub-link-attributes-02

2022-01-13 Thread Les Ginsberg (ginsberg)
Aijun - From: Lsr On Behalf Of Aijun Wang Sent: Thursday, January 13, 2022 6:45 PM To: Les Ginsberg (ginsberg) Cc: 'Peter Psenak' ; 'Christian Hopps' ; lsr-cha...@ietf.org; 'Tony Li' ; 'lsr' ; lsr-...@ietf.org; draft-wang-lsr-stub-link-attribu...@ietf.org Subject: Re: [Lsr] WG Adoption Call

Re: [Lsr] WG Adoption Call for draft-wang-lsr-stub-link-attributes-02

2022-01-13 Thread Les Ginsberg (ginsberg)
, Les Ginsberg (ginsberg) mailto:ginsb...@cisco.com>> wrote:  Here is my takeaway from this back-and-forth. Several highly experienced routing folks have been looking at this draft in detail and they are unable to come to a common understanding on what the draft is trying to do. [WAJ] I

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-13 Thread Les Ginsberg (ginsberg)
has the correct intelligence. Les From: Robert Raszuk Sent: Thursday, January 13, 2022 8:52 AM To: Les Ginsberg (ginsberg) Cc: Linda Dunbar ; Gyan Mishra ; lsr@ietf.org Subject: Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute > and I agree that using the

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-13 Thread Les Ginsberg (ginsberg)
an you put some language in the draft that indicates the expected rate of updates to the metric and some guidelines on limiting the frequency? Thanx. Les From: Linda Dunbar Sent: Thursday, January 13, 2022 7:58 AM To: Robert Raszuk Cc: Gyan Mishra ; Les Ginsberg (ginsberg) ; lsr@ietf.o

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-12 Thread Les Ginsberg (ginsberg)
: Gyan Mishra Sent: Wednesday, January 12, 2022 5:26 PM To: Robert Raszuk Cc: Les Ginsberg (ginsberg) ; Linda Dunbar ; lsr@ietf.org Subject: Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute Robert Here are a few examples of UCMP drafts below used in core and data

Re: [Lsr] WG Adoption Call for draft-wang-lsr-stub-link-attributes-02

2022-01-12 Thread Les Ginsberg (ginsberg)
Here is my takeaway from this back-and-forth. Several highly experienced routing folks have been looking at this draft in detail and they are unable to come to a common understanding on what the draft is trying to do. This alone indicates that the draft needs more work. Maybe the authors have

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-12 Thread Les Ginsberg (ginsberg)
Linda – Inline. Look for LES2: From: Linda Dunbar Sent: Wednesday, January 12, 2022 10:48 AM To: Les Ginsberg (ginsberg) ; lsr@ietf.org Subject: RE: Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute Les, Please see my questions to your suggestions inserted below: Linda From

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-12 Thread Les Ginsberg (ginsberg)
Linda – Please see inline. From: Linda Dunbar Sent: Wednesday, January 12, 2022 8:41 AM To: Les Ginsberg (ginsberg) ; lsr@ietf.org Subject: RE: Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute Les, With regard to what You said about “needing to do load balancing

Re: [Lsr] WG Last Call fo "IS-IS Flood Reflection"-draft-ietf-lsr-isis-flood-reflection-05

2022-01-12 Thread Les Ginsberg (ginsberg)
to deploy. So I continue to wish we did not have to proceed to RFC state at this time – but consider my objection as a “friendly” one. Les From: Acee Lindem (acee) Sent: Wednesday, January 12, 2022 8:17 AM To: Tony Przygienda Cc: Aijun Wang ; Christian Hopps ; Les Ginsberg (ginsberg) ; lsr

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-11 Thread Les Ginsberg (ginsberg)
Linda - From: Linda Dunbar Sent: Tuesday, January 11, 2022 7:47 PM To: Les Ginsberg (ginsberg) ; lsr@ietf.org Subject: RE: Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute Les, Starting with a clean slate: Problem: Most applications are instantiated at multiple locations

Re: [Lsr] WG Adoption Call for draft-wang-lsr-stub-link-attributes-02

2022-01-11 Thread Les Ginsberg (ginsberg)
, of course, choose not to follow this path - in which case it will fall to the WG Chairs to determine the outcome of the adoption call. Thanx. Les > -Original Message- > From: Aijun Wang > Sent: Monday, January 10, 2022 10:19 PM > To: Les Ginsberg (ginsberg) > Cc: '

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
Tony – Probably too many emails in one day on this – but did want to respond to a few points. Inline. From: Tony Li On Behalf Of Tony Li Sent: Monday, January 10, 2022 5:35 PM To: Les Ginsberg (ginsberg) Cc: Christian Hopps ; Peter Psenak (ppsenak) ; Robert Raszuk ; Shraddha Hegde ; Aijun

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
, January 10, 2022 4:43 PM To: Les Ginsberg (ginsberg) Cc: Christian Hopps ; Peter Psenak (ppsenak) ; Robert Raszuk ; Shraddha Hegde ; Aijun Wang ; Hannes Gredler ; lsr Subject: Re: [Lsr] BGP vs PUA/PULSE Les, And if customers could do what he suggested then they would not have an issue

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
Some comments from Robert offline cause me to issue a correction. As BFD sessions are bidirectional we are talking about a Combination of (n,2) – so in the case of 500 nodes the actual number of BFD sessions network-wide is 124750. Les From: Lsr On Behalf Of Les Ginsberg (ginsberg) Sent

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
Robert – The numbers are network-wide – not per node. And no one has mentioned config as an issue in this thread – though no doubt some operators might have concerns in that area. Les From: Robert Raszuk Sent: Monday, January 10, 2022 4:30 PM To: Les Ginsberg (ginsberg) Cc: Greg Mirsky

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
Greg – Inline. From: Greg Mirsky Sent: Monday, January 10, 2022 3:36 PM To: Les Ginsberg (ginsberg) Cc: Tony Li ; Christian Hopps ; Robert Raszuk ; Aijun Wang ; Shraddha Hegde ; Hannes Gredler ; lsr ; Peter Psenak (ppsenak) Subject: Re: [Lsr] BGP vs PUA/PULSE Hi Les, thank you

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
Robert - From: Robert Raszuk Sent: Monday, January 10, 2022 2:56 PM To: Les Ginsberg (ginsberg) Cc: Tony Li ; Christian Hopps ; Peter Psenak (ppsenak) ; Shraddha Hegde ; Aijun Wang ; Hannes Gredler ; lsr Subject: Re: [Lsr] BGP vs PUA/PULSE Les, We have received requests from real

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
, January 10, 2022 1:41 PM To: Les Ginsberg (ginsberg) Cc: Christian Hopps ; Peter Psenak (ppsenak) ; Robert Raszuk ; Shraddha Hegde ; Aijun Wang ; Hannes Gredler ; lsr Subject: Re: [Lsr] BGP vs PUA/PULSE Les, We have received requests from real customers who both need to summarize

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
are aiming for a modest number of seconds. Les From: Greg Mirsky Sent: Monday, January 10, 2022 1:30 PM To: Les Ginsberg (ginsberg) Cc: Tony Li ; Christian Hopps ; Robert Raszuk ; Aijun Wang ; Shraddha Hegde ; Hannes Gredler ; lsr ; Peter Psenak (ppsenak) Subject: Re: [Lsr] BGP vs PUA/PULSE

Re: [Lsr] BGP vs PUA/PULSE

2022-01-10 Thread Les Ginsberg (ginsberg)
t; Cc: Peter Psenak (ppsenak) mailto:ppse...@cisco.com>>; Les Ginsberg (ginsberg) mailto:ginsb...@cisco.com>>; Robert Raszuk mailto:rob...@raszuk.net>>; Shraddha Hegde mailto:shrad...@juniper.net>>; Aijun Wang mailto:wangai...@tsinghua.org.cn>>; Hannes Gredler m

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-10 Thread Les Ginsberg (ginsberg)
the IS-IS encoding, please look at the equivalent proposed OSPF encoding in the previous section and ask yourself why they are different.  Les From: Lsr On Behalf Of Aijun Wang Sent: Monday, January 10, 2022 9:05 AM To: Les Ginsberg (ginsberg) Cc: lsr@ietf.org; Linda Dunbar Subject: Re

Re: [Lsr] WG Adoption Call for draft-wang-lsr-stub-link-attributes-02

2022-01-10 Thread Les Ginsberg (ginsberg)
Aijun - Please see inline. > -Original Message- > From: Aijun Wang > Sent: Monday, January 10, 2022 8:34 AM > To: Les Ginsberg (ginsberg) > Cc: Christian Hopps ; lsr@ietf.org; lsr-cha...@ietf.org; > lsr-...@ietf.org; draft-wang-lsr-stub-link-attribu...@ietf.org >

Re: [Lsr] Seeking feedback to the revised draft-dunbar-lsr-5g-edge-compute

2022-01-10 Thread Les Ginsberg (ginsberg)
Linda – I believe the most valuable feedback you received during your presentation at IETF 112 is that using IGPs likely will not meet the deployment requirements. In particular, persistence of a given client session with a given application server is likely a requirement which will not be

Re: [Lsr] WG Last Call fo "IS-IS Flood Reflection" -draft-ietf-lsr-isis-flood-reflection-05

2022-01-10 Thread Les Ginsberg (ginsberg)
+1 Hopefully this would help us understand the use cases better and why/if more than one solution might be appropriate. Can’t happen too soon IMO.  Les From: Jeff Tantsura Sent: Monday, January 3, 2022 11:21 AM To: Tony Przygienda Cc: Christian Hopps ; Les Ginsberg (ginsberg) ; lsr

Re: [Lsr] WG Adoption Call for draft-wang-lsr-stub-link-attributes-02

2022-01-10 Thread Les Ginsberg (ginsberg)
I oppose WG adoption of this draft. In addition to my comments below, I am in agreement with the points made by Peter and Shraddha previously in this thread. My comments below are in the context of IS-IS/RFC5316, but I believe are equally valid in the context of OSPF/RFC5392. There are two

Re: [Lsr] Using L1 for Transit Traffic in IS-IS

2021-12-11 Thread Les Ginsberg (ginsberg)
: Friday, December 10, 2021 10:56 PM To: Les Ginsberg (ginsberg) Cc: Acee Lindem (acee) ; Muthu Arul Mozhi Perumal ; Tony Li ; Tony Przygienda ; lsr@ietf.org Subject: Re: [Lsr] Using L1 for Transit Traffic in IS-IS Hi Les My thoughts are that as both of these drafts are experimental, if both get

Re: [Lsr] Using L1 for Transit Traffic in IS-IS

2021-12-10 Thread Les Ginsberg (ginsberg)
of either solution is non-trivial – as is insuring interoperability – as is the actual deployment. What justifies doubling that effort? Thanx. Les From: Gyan Mishra Sent: Friday, December 10, 2021 5:46 PM To: Muthu Arul Mozhi Perumal Cc: Acee Lindem (acee) ; Les Ginsberg (ginsberg) ; Tony Li

Re: [Lsr] Using L1 for Transit Traffic in IS-IS

2021-12-09 Thread Les Ginsberg (ginsberg)
their requirements. I think this would help the WG discover better ways forward. Don’t think we have made progress in that regard… Les From: Acee Lindem (acee) Sent: Thursday, December 9, 2021 1:59 PM To: Les Ginsberg (ginsberg) ; Tony Przygienda Cc: Tony Li ; lsr@ietf.org Subject: Re: [Lsr] Using L1

Re: [Lsr] Using L1 for Transit Traffic in IS-IS

2021-12-09 Thread Les Ginsberg (ginsberg)
appropriately. Thanx for listening. Les From: Tony Przygienda Sent: Wednesday, December 8, 2021 5:27 AM To: Les Ginsberg (ginsberg) Cc: Tony Li ; lsr@ietf.org; Acee Lindem (acee) Subject: Re: [Lsr] Using L1 for Transit Traffic in IS-IS Les, all sounds to me unfortunately like a gripe

Re: [Lsr] Using L1 for Transit Traffic in IS-IS

2021-12-08 Thread Les Ginsberg (ginsberg)
Tony - From: Tony Li On Behalf Of Tony Li Sent: Tuesday, December 7, 2021 10:52 PM To: Les Ginsberg (ginsberg) Cc: Acee Lindem (acee) ; lsr@ietf.org Subject: Re: Using L1 for Transit Traffic in IS-IS Les, Here, I am not convinced that there is broad WG consensus that this is a problem

[Lsr] Using L1 for Transit Traffic in IS-IS

2021-12-07 Thread Les Ginsberg (ginsberg)
From: Tony Li On Behalf Of Tony Li Sent: Tuesday, December 7, 2021 2:53 PM To: Les Ginsberg (ginsberg) Cc: Acee Lindem (acee) ; Acee Lindem (acee) ; lsr@ietf.org Subject: Re: [Lsr] WG Last Call fo "IS-IS Flood Reflection" -draft-ietf-lsr-isis-flood-reflection-05 Les, And in r

Re: [Lsr] WG Last Call fo "IS-IS Flood Reflection" -draft-ietf-lsr-isis-flood-reflection-05

2021-12-07 Thread Les Ginsberg (ginsberg)
s proposed. Les From: Acee Lindem (acee) Sent: Tuesday, December 7, 2021 10:31 AM To: Les Ginsberg (ginsberg) ; Acee Lindem (acee) ; lsr@ietf.org Subject: Re: [Lsr] WG Last Call fo "IS-IS Flood Reflection" -draft-ietf-lsr-isis-flood-reflection-05 Hi Les, From: Lsr mailto:lsr-boun...@

Re: [Lsr] WG Last Call fo "IS-IS Flood Reflection" -draft-ietf-lsr-isis-flood-reflection-05

2021-12-07 Thread Les Ginsberg (ginsberg)
When I look at this request, I see it in a larger context. There are two drafts which attempt to address the same problem in very different ways: https://datatracker.ietf.org/doc/draft-ietf-lsr-isis-flood-reflection/ and https://datatracker.ietf.org/doc/draft-ietf-lsr-isis-area-proxy/ Both

Re: [Lsr] BGP vs PUA/PULSE

2021-12-01 Thread Les Ginsberg (ginsberg)
Robert – One last time…inline. From: Robert Raszuk Sent: Wednesday, December 1, 2021 11:12 AM To: Les Ginsberg (ginsberg) Cc: Tony Przygienda ; Peter Psenak (ppsenak) ; Hannes Gredler ; lsr ; Tony Li ; Aijun Wang ; Shraddha Hegde Subject: Re: [Lsr] BGP vs PUA/PULSE Les, > Pu

Re: [Lsr] BGP vs PUA/PULSE

2021-12-01 Thread Les Ginsberg (ginsberg)
Tony – Inline. From: Tony Przygienda Sent: Wednesday, December 1, 2021 9:33 AM To: Les Ginsberg (ginsberg) Cc: Peter Psenak (ppsenak) ; Hannes Gredler ; lsr ; Tony Li ; Aijun Wang ; Robert Raszuk ; Shraddha Hegde Subject: Re: [Lsr] BGP vs PUA/PULSE " Nodes which originate FSP-LSPs

Re: [Lsr] BGP vs PUA/PULSE

2021-12-01 Thread Les Ginsberg (ginsberg)
: Wednesday, December 1, 2021 9:06 AM To: Les Ginsberg (ginsberg) Cc: Peter Psenak (ppsenak) ; lsr Subject: Re: [Lsr] BGP vs PUA/PULSE Les, For all maintenance purposes there is need to drain the traffic from the router before hitting reload or powering it off. Sure services can be removed

Re: [Lsr] BGP vs PUA/PULSE

2021-12-01 Thread Les Ginsberg (ginsberg)
Raszuk Sent: Wednesday, December 1, 2021 9:02 AM To: Les Ginsberg (ginsberg) Cc: Tony Przygienda ; Peter Psenak (ppsenak) ; Hannes Gredler ; lsr ; Tony Li ; Aijun Wang ; Shraddha Hegde Subject: Re: [Lsr] BGP vs PUA/PULSE Hi Les, so one could argue that switching BGP traffic to the backup

Re: [Lsr] BGP vs PUA/PULSE

2021-12-01 Thread Les Ginsberg (ginsberg)
From: Robert Raszuk Sent: Wednesday, December 1, 2021 7:36 AM To: Peter Psenak (ppsenak) ; Les Ginsberg (ginsberg) Cc: lsr Subject: Re: [Lsr] BGP vs PUA/PULSE Peter and Les, Do you plan to have a provision to suspend PULSE generation for the planned maintenance windows where service reachability

Re: [Lsr] BGP vs PUA/PULSE

2021-12-01 Thread Les Ginsberg (ginsberg)
Tony – From: Tony Przygienda Sent: Wednesday, December 1, 2021 7:58 AM To: Peter Psenak (ppsenak) Cc: Les Ginsberg (ginsberg) ; Hannes Gredler ; lsr ; Tony Li ; Aijun Wang ; Robert Raszuk ; Shraddha Hegde Subject: Re: [Lsr] BGP vs PUA/PULSE 1. my question is different. why does the draft

Re: [Lsr] BGP vs PUA/PULSE

2021-11-30 Thread Les Ginsberg (ginsberg)
the checksum is calculated. Will do that in the next revision. Thanx. Les > -Original Message- > From: Hannes Gredler > Sent: Tuesday, November 30, 2021 11:22 AM > To: Peter Psenak (ppsenak) > Cc: Robert Raszuk ; Les Ginsberg (ginsberg) > ; Aijun Wang ; lsr > ; Ton

Re: [Lsr] BGP vs PUA/PULSE

2021-11-30 Thread Les Ginsberg (ginsberg)
Hannes - Inline. > -Original Message- > From: Hannes Gredler > Sent: Tuesday, November 30, 2021 11:15 AM > To: Les Ginsberg (ginsberg) > Cc: Aijun Wang ; 'Robert Raszuk' > ; 'lsr' ; 'Tony Li' ; > 'Shraddha Hegde' ; Peter Psenak (ppsenak) > > Subject: Re: [Ls

Re: [Lsr] WG Adoption Call for "IS-IS Fast Flooding" - draft-decraeneginsberg-lsr-isis-fast-flooding-00

2021-11-30 Thread Les Ginsberg (ginsberg)
As co-author, I support WG adoption. I also strongly favor Experimental Track for this draft. This accurately reflects the state of this work. One of the possible final outcomes of this work may be that multiple approaches work and that there is no need for standardization. TBD Until the need

Re: [Lsr] IPR Poll for "IS-IS Fast Flooding" - draft-decraeneginsberg-lsr-isis-fast-flooding-00

2021-11-30 Thread Les Ginsberg (ginsberg)
I am not aware of any undisclosed IPR. Les From: Acee Lindem (acee) Sent: Monday, November 22, 2021 6:12 AM To: draft-decraeneginsberg-lsr-isis-fast-flood...@ietf.org Cc: lsr@ietf.org Subject: IPR Poll for "IS-IS Fast Flooding" - draft-decraeneginsberg-lsr-isis-fast-flooding-00 Draft

Re: [Lsr] BGP vs PUA/PULSE

2021-11-29 Thread Les Ginsberg (ginsberg)
, a few responses inline. From: Tony Li On Behalf Of Tony Li Sent: Monday, November 29, 2021 6:09 PM To: Les Ginsberg (ginsberg) Cc: Hannes Gredler ; Aijun Wang ; Robert Raszuk ; lsr ; Shraddha Hegde ; Peter Psenak (ppsenak) Subject: Re: [Lsr] BGP vs PUA/PULSE Les, Summarization is used

Re: [Lsr] BGP vs PUA/PULSE

2021-11-29 Thread Les Ginsberg (ginsberg)
On Behalf Of Tony Li Sent: Monday, November 29, 2021 3:22 PM To: Les Ginsberg (ginsberg) Cc: Hannes Gredler ; Aijun Wang ; Robert Raszuk ; lsr ; Tony Li ; Shraddha Hegde ; Peter Psenak (ppsenak) Subject: Re: [Lsr] BGP vs PUA/PULSE Les, Thank you for clearly articulating your understanding. One

Re: [Lsr] BGP vs PUA/PULSE

2021-11-29 Thread Les Ginsberg (ginsberg)
Robert – From: Lsr On Behalf Of Robert Raszuk Sent: Monday, November 29, 2021 2:54 PM To: Les Ginsberg (ginsberg) Cc: Aijun Wang ; Shraddha Hegde ; Tony Li ; Hannes Gredler ; lsr ; Peter Psenak (ppsenak) Subject: Re: [Lsr] BGP vs PUA/PULSE s/ 1 days ago you said/ 11 days ago you said

Re: [Lsr] BGP vs PUA/PULSE

2021-11-29 Thread Les Ginsberg (ginsberg)
Hannes - Thanx for bringing a new voice into the discussion. Please see inline. > -Original Message- > From: Hannes Gredler > Sent: Monday, November 29, 2021 1:27 AM > To: Aijun Wang > Cc: 'Robert Raszuk' ; 'lsr' ; Les Ginsberg > (ginsberg) ; 'Tony Li' ;

Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes

2021-11-21 Thread Les Ginsberg (ginsberg)
addressed in some subsequent thread. Just want to point out that the solution does not have to have the same scale characteristics as having no summaries. Thanx for the discussion. Les From: Tony Li On Behalf Of Tony Li Sent: Sunday, November 21, 2021 10:56 PM To: Les Ginsberg (ginsberg) Cc

Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes

2021-11-21 Thread Les Ginsberg (ginsberg)
Tony - The problem is that restricting the prefix length does nothing to limit the number of advertisements that get flooded. In a high-scale situation, when there is a mass failure, it would lead to a flooding spike. That’s exactly not the time to stress the system. [LES:] As I have stated

Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes

2021-11-19 Thread Les Ginsberg (ginsberg)
From: Robert Raszuk Sent: Friday, November 19, 2021 1:30 PM To: Les Ginsberg (ginsberg) Cc: Peter Psenak ; Tony Li ; Gyan Mishra ; Christian Hopps ; Aijun Wang ; lsr ; Acee Lindem (acee) ; Tony Przygienda Subject: Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting

Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes

2021-11-19 Thread Les Ginsberg (ginsberg)
, November 19, 2021 12:25 PM To: Peter Psenak Cc: Tony Li ; Les Ginsberg (ginsberg) ; Gyan Mishra ; Christian Hopps ; Aijun Wang ; lsr ; Acee Lindem (acee) ; Tony Przygienda Subject: Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes Peter, yes, but it's not specific

Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes

2021-11-18 Thread Les Ginsberg (ginsberg)
Tony - From: Lsr On Behalf Of Tony Li Sent: Thursday, November 18, 2021 8:07 AM To: Les Ginsberg (ginsberg) Cc: Gyan Mishra ; Christian Hopps ; Aijun Wang ; lsr@ietf.org; Acee Lindem (acee) ; Tony Przygienda Subject: Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting

Re: [Lsr] Clarification on RFC 7794

2021-11-18 Thread Les Ginsberg (ginsberg)
Shraddha - In the case you mention (redistribution from another protocol), the advertised router-id would be the ID of the originating router in the source protocol for redistribution. In your example, this ID would come from OSPF. However, the term "router-id" means something different in

Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes

2021-11-17 Thread Les Ginsberg (ginsberg)
Tony – Inline. From: Tony Li On Behalf Of Tony Li Sent: Wednesday, November 17, 2021 5:24 PM To: Les Ginsberg (ginsberg) Cc: Gyan Mishra ; Aijun Wang ; lsr@ietf.org; Christian Hopps ; Acee Lindem (acee) ; Tony Przygienda Subject: Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112

Re: [Lsr] 【Responses for Comments on PUAM Draft】RE: IETF 112 LSR Meeting Minutes

2021-11-17 Thread Les Ginsberg (ginsberg)
could explain why in the context of the above. Thanx. Les From: Lsr On Behalf Of Gyan Mishra Sent: Wednesday, November 17, 2021 4:32 PM To: Aijun Wang Cc: Les Ginsberg (ginsberg) ; lsr@ietf.org; Christian Hopps ; Tony Przygienda ; Acee Lindem (acee) Subject: Re: [Lsr] 【Responses

Re: [Lsr] Renew: Early Allocation for IS-IS TTZ

2021-11-15 Thread Les Ginsberg (ginsberg)
; Hannes Gredler ; Les Ginsberg (ginsberg) Cc: lsr@ietf.org; Alvaro Retana Subject: Renew: Early Allocation for IS-IS TTZ Hi Acee, Would you mind renewing the Early Allocation for IS-IS TTZ? The implementation of IS-IS TTZ is in progress. Thanks much. Best Regards, Huaimo

Re: [Lsr] 【Technical Discussion】"Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-15 Thread Les Ginsberg (ginsberg)
Aijun – From: Aijun Wang Sent: Friday, October 15, 2021 12:16 AM To: Les Ginsberg (ginsberg) ; Acee Lindem (acee) ; Peter Psenak (ppsenak) ; lsr@ietf.org Subject: RE: [Lsr] 【Technical Discussion】"Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notifica

Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-15 Thread Les Ginsberg (ginsberg)
relationship hierarchy between PDU type and scope. Some additional responses inline. If I did not specifically respond inline, please look to this introductory response for the answers. From: Lsr On Behalf Of Gyan Mishra Sent: Thursday, October 14, 2021 9:56 PM To: Les Ginsberg (ginsberg) Cc: lsr@ietf.org

Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-13 Thread Les Ginsberg (ginsberg)
Tony – Given that IGPs provide the ability to advertise summaries (in the interest of scalability), I think it is reasonable to say that being able to advertise reachability changes of endpoints covered by the summary also can be considered as a legitimate use of the IGP. IGPs certainly

Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-13 Thread Les Ginsberg (ginsberg)
. Les > -Original Message- > From: Lsr On Behalf Of Aijun Wang > Sent: Wednesday, October 13, 2021 7:50 PM > To: 'Les Ginsberg (ginsberg)' ; 'Acee > Lindem (acee)' ; 'Peter Psenak' > ; lsr@ietf.org > Subject: Re: [Lsr] "Prefix Unreachable Announcement"

Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-13 Thread Les Ginsberg (ginsberg)
, 2021 1:57 PM To: Les Ginsberg (ginsberg) Cc: Acee Lindem (acee) ; Peter Psenak (ppsenak) ; lsr@ietf.org Subject: Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification" Hi Les, I agree with all you said except this: The nodes to w

Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-13 Thread Les Ginsberg (ginsberg)
PM To: Les Ginsberg (ginsberg) Cc: lsr@ietf.org; Peter Psenak ; Acee Lindem (acee) Subject: Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification" Hi Les, et al., I've just read the draft-ppsenak-lsr-igp-event-notification

Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-13 Thread Les Ginsberg (ginsberg)
Robert – Inline. From: Robert Raszuk Sent: Wednesday, October 13, 2021 12:52 PM To: Les Ginsberg (ginsberg) Cc: Acee Lindem (acee) ; Peter Psenak (ppsenak) ; lsr@ietf.org Subject: Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notifi

Re: [Lsr] "Prefix Unreachable Announcement" and "IS-IS and OSPF Extension for Event Notification"

2021-10-13 Thread Les Ginsberg (ginsberg)
This thread is becoming "diverse". We are trying to talk about many different solutions (IGP, BGP, BFD) - all of which may be useful and certainly are not mutually exclusive. If we can agree that an IGP solution is useful, then we can use this thread to set a direction for the IGP solution -

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-23 Thread Les Ginsberg (ginsberg)
Robert – From: Robert Raszuk Sent: Monday, August 23, 2021 10:44 AM To: Les Ginsberg (ginsberg) Cc: Shraddha Hegde ; Tony Przygienda ; Ron Bonica ; lsr@ietf.org Subject: Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt You continue to confuse Flex and ASLA. I

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-23 Thread Les Ginsberg (ginsberg)
ASLA Flex-specific – that would unduly constrain future applications to be “just-like Flex”. And, Flex is doing just fine as it is – one of the indicators of which I believe is your enthusiasm for it.  Les From: Robert Raszuk Sent: Monday, August 23, 2021 10:17 AM To: Les Ginsberg

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-23 Thread Les Ginsberg (ginsberg)
From: Shraddha Hegde Sent: Monday, August 23, 2021 8:22 AM To: Les Ginsberg (ginsberg) ; Tony Przygienda Cc: Ron Bonica ; Robert Raszuk ; lsr@ietf.org Subject: RE: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt Les

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-23 Thread Les Ginsberg (ginsberg)
Shraddha - > -Original Message- > From: Shraddha Hegde > Sent: Sunday, August 22, 2021 11:37 PM > To: Les Ginsberg (ginsberg) ; Ron Bonica > ; lsr@ietf.org > Subject: RE: New Version Notification for draft-hegde-lsr-asla-any-app-00.txt > > >There

[Lsr] Relationship between ASLA and Flex Algo

2021-08-22 Thread Les Ginsberg (ginsberg)
propose is desirable or needed. Les From: Robert Raszuk Sent: Sunday, August 22, 2021 6:33 AM To: Peter Psenak (ppsenak) Cc: Les Ginsberg (ginsberg) ; Ron Bonica ; lsr@ietf.org Subject: Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt Hey Peter, > An

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-21 Thread Les Ginsberg (ginsberg)
Robert - From: Robert Raszuk Sent: Saturday, August 21, 2021 2:41 AM To: Les Ginsberg (ginsberg) Cc: Ron Bonica ; lsr@ietf.org Subject: Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt But the entire point of A-bit is that you are doing this exercise to make sure

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-21 Thread Les Ginsberg (ginsberg)
implementations to handle the various combinations of possible deployments (only zero ABM, mix of zero-ABM and A-bit, all A-bit) I do not see that ROI is worth it. A few more responses inline. From: Tony Przygienda Sent: Saturday, August 21, 2021 12:04 AM To: Les Ginsberg (ginsberg) Cc: Robert

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-20 Thread Les Ginsberg (ginsberg)
Robert - From: Robert Raszuk Sent: Friday, August 20, 2021 5:01 PM To: Les Ginsberg (ginsberg) Cc: Ron Bonica ; lsr@ietf.org Subject: Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt Hi Les, The point being is that “A-bit” is no different than introducing any other

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-20 Thread Les Ginsberg (ginsberg)
Robert – Inline. From: Robert Raszuk Sent: Friday, August 20, 2021 1:29 PM To: Les Ginsberg (ginsberg) Cc: Ron Bonica ; lsr@ietf.org Subject: Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt Hi Les, Please see below. It is not just that a new application wants

Re: [Lsr] RFC 8919, RFC 8920, Flex Algo, and Flex Algo BW Constraints

2021-08-20 Thread Les Ginsberg (ginsberg)
; Voyer, Daniel > ; Jeff Tantsura ; Yingzhen > Qu > Cc: Les Ginsberg (ginsberg) ; Acee Lindem (acee) > ; lsr@ietf.org > Subject: RE: [Lsr] RFC 8919, RFC 8920, Flex Algo, and Flex Algo BW Constraints > > Peter, > > I'm afraid that you have not answered Dan's question,

Re: [Lsr] New Version Notification for draft-hegde-lsr-asla-any-app-00.txt

2021-08-20 Thread Les Ginsberg (ginsberg)
Draft authors - Comment #1 Regarding the example discussed in the Introduction, let's see if I understand it correctly. There are three (possibly more) applications enabled in the network. Let's call them X, Y, and Z. There are two attribute types being advertised on a given (set of) link(s).

Re: [Lsr] RFC 8919, RFC 8920, Flex Algo, and Flex Algo BW Constraints

2021-08-18 Thread Les Ginsberg (ginsberg)
Ron - Indeed - it is long past the time when we should be focusing on the "big picture". I think Acee has stated it as succinctly as anyone - let me repeat for emphasis: "The LSR WG developed ASLAs to cover usage of the link attributes (including metrics) for different applications and

Re: [Lsr] Secdir last call review of draft-ietf-lsr-pce-discovery-security-support-05

2021-08-10 Thread Les Ginsberg (ginsberg)
Qin - Just to note that RFC 5310 does NOT replace or obsolete RFC 5304. Both RFC 's have their uses. Please be sure to reference both RFCs in your updated text. Thanx. Les > -Original Message- > From: Qin Wu > Sent: Monday, August 9, 2021 6:13 PM > To: Les Ginsbe

Re: [Lsr] Secdir last call review of draft-ietf-lsr-pce-discovery-security-support-05

2021-08-09 Thread Les Ginsberg (ginsberg)
Yaron/Qin - For IS-IS security please also see RFC 5310. For OSPF security please see RFC 5709. Regarding the debate about MUST vs SHOULD, as I see it advertisement of this information is an option. The IGP might not have access to this information in a given implementation/deployment - and I

Re: [Lsr] IS-IS flooding

2021-08-03 Thread Les Ginsberg (ginsberg)
Bruno - From: bruno.decra...@orange.com Sent: Tuesday, August 3, 2021 2:13 AM To: Les Ginsberg (ginsberg) Cc: lsr@ietf.org Subject: RE: IS-IS flooding Some more questions on S13 (speeding UP, aka sensing the receiver performance) Can you clarifying the definition of the three measurements

Re: [Lsr] IS-IS flooding

2021-08-03 Thread Les Ginsberg (ginsberg)
Bruno - Inline. From: bruno.decra...@orange.com Sent: Tuesday, August 3, 2021 1:41 AM To: Les Ginsberg (ginsberg) Cc: lsr@ietf.org Subject: IS-IS flooding Les, Thank you for the implementation and test results. I have some clarification questions on your test results S6: What burst size did

Re: [Lsr] Generic metric: application-specific vs application-independent

2021-07-31 Thread Les Ginsberg (ginsberg)
D? Les > -Original Message- > From: Tony Li On Behalf Of Tony Li > Sent: Friday, July 30, 2021 11:00 PM > To: Robert Raszuk > Cc: Les Ginsberg (ginsberg) ; Peter Psenak (ppsenak) > ; Shraddha Hegde ; Van De > Velde, Gunter (Nokia - BE/Antwerp) ; > lsr@ietf.org &

Re: [Lsr] Generic metric: application-specific vs application-independent

2021-07-30 Thread Les Ginsberg (ginsberg)
to leave ourselves vulnerable to something which is so easily broken. This means more late nights for me.  Les From: Tony Li On Behalf Of Tony Li Sent: Friday, July 30, 2021 2:12 PM To: Les Ginsberg (ginsberg) Cc: Peter Psenak (ppsenak) ; Shraddha Hegde ; Robert Raszuk ; Van De Velde, Gunter

Re: [Lsr] Generic metric: application-specific vs application-independent

2021-07-30 Thread Les Ginsberg (ginsberg)
Tony - > -Original Message- > From: Tony Li On Behalf Of Tony Li > Sent: Friday, July 30, 2021 1:37 PM > To: Les Ginsberg (ginsberg) > Cc: Peter Psenak (ppsenak) ; Shraddha Hegde > ; Robert Raszuk ; Van De > Velde, Gunter (Nokia - BE/Antwerp) ; > lsr@ietf

Re: [Lsr] Generic metric: Future metrics are not constrained

2021-07-30 Thread Les Ginsberg (ginsberg)
Tony - Thanx for separating out this thread. Inline. > -Original Message- > From: Tony Li On Behalf Of Tony Li > Sent: Friday, July 30, 2021 1:25 PM > To: Les Ginsberg (ginsberg) > Cc: Peter Psenak (ppsenak) ; Shraddha Hegde > ; Robert Raszuk ; Van De >

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