Re: [Lsr] Is it necessary to define new PUB/SUB model to monitor the node live?

2022-03-30 Thread Aijun Wang
Hi, Robert: From: Robert Raszuk Sent: Tuesday, March 29, 2022 3:53 PM To: Aijun Wang Cc: Tony Li ; Aijun Wang ; lsr Subject: Re: [Lsr] Is it necessary to define new PUB/SUB model to monitor the node live? Aijun, Your email is written prove that my question the other day which

Re: [Lsr] Is it necessary to define new PUB/SUB model to monitor the node live?

2022-03-31 Thread Aijun Wang
-unreachable-annoucement-08#section-3.2. The corresponding solution will be updated later. Best Regards Aijun Wang China Telecom From: lsr-boun...@ietf.org On Behalf Of Robert Raszuk Sent: Wednesday, March 30, 2022 4:58 PM To: Aijun Wang Cc: Aijun Wang ; Tony Li

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric - "OSPF Reverse Metric"

2022-04-19 Thread Aijun Wang
its usage only for maintenance scenarios as described in RFC8500. For the encoding, I think the “offset” value and the “O” bit is not necessary, because the meaningful “Reverse Metric” should be the maximum value of the metric. Best Regards Aijun Wang China Telecom From: lsr-boun

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric - "OSPF Reverse Metric"

2022-04-19 Thread Aijun Wang
Aijun Wang China Telecom From: Ketan Talaulikar Sent: Tuesday, April 19, 2022 6:59 PM To: Aijun Wang Cc: Les Ginsberg (ginsberg) ; Acee Lindem (acee) ; lsr ; draft-ietf-lsr-ospf-reverse-met...@ietf.org Subject: Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric - "OSPF Reverse Metric"

2022-04-20 Thread Aijun Wang
value is offset directly(as that in RFC8500), and needn’t introduce the H/O bit to complex the implementation and deployments. Best Regards Aijun Wang China Telecom From: Ketan Talaulikar Sent: Wednesday, April 20, 2022 6:47 PM To: Aijun Wang Cc: Les Ginsberg (ginsberg) ; lsr

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric - "OSPF Reverse Metric"

2022-04-21 Thread Aijun Wang
t your direction. Best Regards Aijun Wang China Telecom From: lsr-boun...@ietf.org On Behalf Of Ketan Talaulikar Sent: Thursday, April 21, 2022 11:00 PM To: Acee Lindem (acee) Cc: Les Ginsberg (ginsberg) ; Aijun Wang ; draft-ietf-lsr-ospf-reverse-met...@ietf.org; lsr Subject: Re: [Lsr] W

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-04-22 Thread Aijun Wang
Hi, Acee and authors of this draft: Want to know why the “IS-IS Flexible Algorithm Prefix Metric Sub-TLV” and “OSPF Flexible Algorithm Prefix Metric Sub-TLV” etc that defined in sec 8-10 of draft-ietf-lsr-flex-algo can’t be used to accomplish the same effect? Aijun Wang >> > On F

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric - "OSPF Reverse Metric"

2022-04-23 Thread Aijun Wang
o all routers on the LAN should be changed. 4. DRothers use the updated neighbor metric to calculate the SPF path to the original mentioned router(Router A), push the traffic away to the mentioned router(Router A) Similar procedures as RFC8500. Is there any issues? Best Regards Aiju

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric - "OSPF Reverse Metric"

2022-04-25 Thread Aijun Wang
ee the so-called “separate document”. And, based on the discussions, I think there is no reason to differentiate the solution for IS-IS and OSPF on LAN interface. Best Regards Aijun Wang China Telecom From: lsr-boun...@ietf.org <mailto:lsr-boun...@ietf.org> mailto:lsr-boun

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ospf-reverse-metric - "OSPF Reverse Metric"

2022-04-26 Thread Aijun Wang
value) appointed by the “Reverse Metric”. The “W” bit can be preserved, to signal whether only the interface to the advertised router be changed, or all the routers on the LAN will be influenced. Best Regards Aijun Wang China Telecom From: lsr-boun...@ietf.org On Behalf Of Acee Lindem

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-02 Thread Aijun Wang
Hi, Acee: The questions raised at https://mailarchive.ietf.org/arch/msg/lsr/RlHphXCwxMbgGvcBV_m24xiDzS0/ has not been answered. Aijun Wang China Telecom > On May 2, 2022, at 23:00, Acee Lindem (acee) > wrote: > >  > The WG last call has completed. We will submit an updated

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-03 Thread Aijun Wang
-Flex effect then. So, what’s the additional value of the IP-Flexalgo draft then? Aijun Wang China Telecom > On May 3, 2022, at 14:46, Peter Psenak > wrote: > > Aijun, > >> On 03/05/2022 00:47, Aijun Wang wrote: >> Hi, Acee: >> The questions raised at >>

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-03 Thread Aijun Wang
the FAPM and the associated SID, the MPLS-based forwarding will be selected. Why can’t they coexist? Aijun Wang China Telecom > On May 3, 2022, at 16:05, Peter Psenak > wrote: > > Aijun, > >> On 03/05/2022 09:59, Aijun Wang wrote: >> Hi, Peter: >> The defi

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-03 Thread Aijun Wang
Hi, Peter: I think the logic is the following: FAPM is the sub-TLV of TLV 135,235,236 and 237, then it extends these TLVs for advertising prefixes in algorithm 0 to other Flexible Algorithm. Then I see no reason to define the new top-TLV to encoding the similar information. Aijun Wang China

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-03 Thread Aijun Wang
an IPv4 Algorithm Prefix Reachability TLV, the IPv4 Prefix Reachability advertisement MUST be preferred when installing entries in the forwarding plane. It is obvious that any prefixes can be advertised in either TLVs, what’s the necessary to define the new one? Aijun Wang China Telecom

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-04 Thread Aijun Wang
Defining new algorithm also requires the all the node upgrades. Your argument seems not reasonable. Aijun Wang China Telecom > On May 4, 2022, at 11:49, Parag Kaneriya wrote: > > Mixing data plan using same TLV may lead to forwarding issue. if you do so > it is required to upg

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-04 Thread Aijun Wang
Hi, Les: Aijun Wang China Telecom > On May 4, 2022, at 07:12, Les Ginsberg (ginsberg) wrote: > >  > Aijun – > > I am not an author of the draft – and so cannot speak on behalf of the draft > authors. > But here is my response as WG member. > > You

Re: [Lsr] Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-04 Thread Aijun Wang
Hi, Gyan: Aijun Wang China Telecom > On May 5, 2022, at 02:48, Gyan Mishra wrote: > >  > > Hi Aijun > > Section 6 describes why as Les has mentioned that you need a new top level > TLV for OSPF and ISIS for IP Flex Algo Reachability advertisement to > disambig

Re: [Lsr] I-D Action: draft-wang-lsr-stub-link-attributes-04.txt

2022-05-16 Thread Aijun Wang
eager to hear your additional comments/suggestions. If there is no more concerns for the updated version, we want to ask Chairs to forward it then. Thanks in advance. Aijun Wang China Telecom > On May 16, 2022, at 19:02, internet-dra...@ietf.org wrote: > >  > A New Inter

[Lsr] [Need AD’s Judgement and Explanation] Re: Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-16 Thread Aijun Wang
the authors and all the reviewers’ and shepherd’s efforts, but think this is not the right direction to accomplish the aim. Aijun Wang China Telecom > On May 16, 2022, at 19:50, Acee Lindem (acee) > wrote: > >  > Hi Aijun, > > We need to support mixed deployments of r

Re: [Lsr] [Need AD’s Judgement and Explanation] Re: Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-16 Thread Aijun Wang
Hi, Acee: Would you like to give one example to support your “loop” assertions? Aijun Wang China Telecom > On May 16, 2022, at 23:41, Acee Lindem (acee) > wrote: > >  > > > From: Aijun Wang > Date: Monday, May 16, 2022 at 11:35 AM > To: Acee Lindem , John S

Re: [Lsr] [Need AD’s Judgement and Explanation] Re: Working Group Last Call for draft-ietf-lsr-ip-flexalgo-04 - "IGP Flexible Algorithms (Flex-Algorithm) In IP Networks"

2022-05-16 Thread Aijun Wang
d. Seems obvious to me. > > thanks, > Peter > > > > >> On 16/05/2022 17:35, Aijun Wang wrote: >> Hi, Acee: >> I am curious that you are so hurry to forward this document. >> The updated document just describes the followings: >> (https://datatracker.ietf

[Lsr] Convergence of Prefixes Unreachable Announcement Proposals

2022-06-07 Thread Aijun Wang
two years, there is no reason to discuss again the similar procedures and the later work should respect the former’s efforts. If you agree, we can discuss the details of convergence offline. If you don’t agree, we can discuss these solutions openly within the WG list. Aijun Wang China

Re: [Lsr] Convergence of Prefixes Unreachable Announcement Proposals

2022-06-07 Thread Aijun Wang
router be upgraded. And the “Max-Value” solution doesn’t necessarily indicate the prefix is lost. We should announce such information explicitly. We can also discuss other convergence solutions. Aijun Wang China Telecom > On Jun 7, 2022, at 20:34, Peter Psenak wrote: > >

Re: [Lsr] Convergence of Prefixes Unreachable Announcement Proposals

2022-06-08 Thread Aijun Wang
when they don’t understand the PUA information. And, when all the routers be upgraded(which are all necessary for both proposals) to support the PUA information , the UPA information can be omitted. Aijun Wang China Telecom > On Jun 7, 2022, at 23:59, Peter Psenak wrote: > > Aijun,

Re: [Lsr] Convergence of Prefixes Unreachable Announcement Proposals

2022-06-13 Thread Aijun Wang
Hi, Peter: Here I want to ask you one question: If the specified detailed prefix doesn’t exist in the receiver’s route table, what the receiver will do when it receives the UPA information of this specified prefix? Aijun Wang China Telecom > On Jun 10, 2022, at 23:16, Peter Psenak wr

Re: [Lsr] Convergence of Prefixes Unreachable Announcement Proposals

2022-06-13 Thread Aijun Wang
behavior of the receiver—-The specified prefix may still also be reachable via the summary address. Wrt the any of the above situations, the problem described at the beginning of the draft isn’t solved, Right? Aijun Wang China Telecom > On Jun 13, 2022, at 21:14, Peter Psenak wrote: > &g

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-14 Thread Aijun Wang
within one area to be upgraded is that it want to avoid the situations when the router doesn’t recognize PUA message and misbehave. We are considering the convergence of PUA/UPA solutions, which may relax such requirements during deployment. Aijun Wang China Telecom > On Jun 14, 2022, at 16

Re: [Lsr] Convergence of Prefixes Unreachable Announcement Proposals

2022-06-14 Thread Aijun Wang
Hi, Peter: If the prefix is still reachable via the summary address, no additional action should be triggered. In conclusion, UPA just tell the receiver that the detailed prefix is missing, not the detailed prefix unreachable. Aijun Wang China Telecom > On Jun 14, 2022, at 15:12, Pe

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-14 Thread Aijun Wang
Hi, Robert: Agreed. The potential usages of PUA/UPA are not only PE routers(for BGP PIC), but also prevalent Tunnel technologies(GRE/SRv6). All these nodes are important and we can’t punches so many holes in the summary range. Aijun Wang China Telecom > On Jun 14, 2022, at 22:43, Rob

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-15 Thread Aijun Wang
consider all such prefixes unreachable? This is certainly not the aim of the IP FlexAlgo document. In conclusion, the prefixes unreachable information should be indicated explicitly by other means, as that introduced in the PUA draft. Aijun Wang China Telecom > On Jun 15, 2022, at 17:09, Pe

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-15 Thread Aijun Wang
assumption. Aijun Wang China Telecom > On Jun 15, 2022, at 19:18, Peter Psenak > wrote: > > Aijun, > >> On 15/06/2022 12:12, Aijun Wang wrote: >> Hi, Peter: >> If you use LSInfinity as the indicator of the prefixes unreachable, then how >> about you solve the

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-15 Thread Aijun Wang
in the standards, as described in previous section, an advertisement of the inter-area or external prefix inside OSPF or OSPFv3 LSA that has the age set to value lower than MaxAge and metic set to LSInfinity can be interpreted by the receiver as a UPA. Aijun Wang China Telecom > On

Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce

2022-06-15 Thread Aijun Wang
explicitly.” Whether defining a new flag or use the prefix originator information(as adopt by https://datatracker.ietf.org/doc/html/draft-wang-lsr-prefix-unreachable-annoucement-09#section-4) to indicate explicitly the prefix is unreachable can be further discussed. Aijun Wang China Telecom

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-16 Thread Aijun Wang
ilure node. These are all applications of the PUA/UPA messages, and we can add some statements if necessary on the deployment considerations parts. Aijun Wang China Telecom > On Jun 16, 2022, at 16:10, Van De Velde, Gunter (Nokia - BE/Antwerp) > wrote: > >  > Hi Gyan, Daniel,

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-20 Thread Aijun Wang
Hi, Anup: The advantage of PUA over BFD is that the operator needs not deploy o(n^2) BFD sessions for the services that rely on the IGP reachablity. Such comparisons have been discussed on the list. Aijun Wang China Telecom > On Jun 18, 2022, at 12:55, Anup MalenaaDu wrote: > &g

Re: [Lsr] Thoughts about PUAs - are we not over-engineering?

2022-06-21 Thread Aijun Wang
configured on the ABR. Currently, we interest mainly the node’s reachability(that is, the loopback addresses of the routers). Aijun Wang China Telecom > On Jun 21, 2022, at 20:40, Van De Velde, Gunter (Nokia - BE/Antwerp) > wrote: > >  > wrt partitioned area’s and UPA’s. The

Re: [Lsr] UPA

2022-07-07 Thread Aijun Wang
Hi, Robert: The ABR can detect the prefix unreachable via the SPF calculation once it receives the LSA for link or node failure. What’s the necessary to run multi-hop BFD among ABR and other PEs? Aijun Wang China Telecom > On Jul 7, 2022, at 20:03, Peter Psenak > wrote: > > O

Re: [Lsr] New Version Notification for draft-wang-lsr-prefix-unreachable-annoucement-10.txt

2022-07-10 Thread Aijun Wang
s. We will try to make some summarizations on the coming IETF meetings. Please feel free to comments on the updated contents, or the overall solution. Best Regards Aijun Wang China Telecom -Original Message- From: internet-dra...@ietf.org Sent: Monday, July 11, 2022 8:50 AM To: Aijun W

Re: [Lsr] UPA/PUA

2022-07-17 Thread Aijun Wang
Then considering both the scalability and possible false negative of BFD based solution, can we say that the PUA/UPA solution is more preferable? Best Regards Aijun Wang China Telecom From: lsr-boun...@ietf.org On Behalf Of Greg Mirsky Sent: Monday, July 18, 2022 8:39 AM To: Robert

Re: [Lsr] UPA/PUA

2022-07-17 Thread Aijun Wang
unreachability of the important component prefixes to ensure traffic is not black hole sink routed for the above overlay services. Then considering only the BFD sessions among PEs are not enough, even we put aside the BFD sessions overhead on each PE. Best Regards Aijun Wang

[Lsr] 答复: Comments on draft-wang-lsr-prefix-unreachable-annoucement

2022-07-27 Thread Aijun Wang
ion method. Best Regards Aijun Wang China Telecom 发件人: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] 代表 Ketan Talaulikar 发送时间: 2022年7月27日 16:36 收件人: draft-wang-lsr-prefix-unreachable-annoucem...@ietf.org 抄送: lsr 主题: [Lsr] Comments on draft-wang-lsr-prefix-unreachable-annouc

[Lsr] 答复: Comments on draft-wang-lsr-prefix-unreachable-annoucement

2022-07-27 Thread Aijun Wang
originator can’t be used to indicate the unreachability explicitly? From my POV, if the prefix became unreachable, there is no originator advertise it, isn’t it? Anyway, this can be discussed further later after the adoption. Best Regards Aijun Wang China Telecom 发件人: Ketan

[Lsr] 答复: Comments on draft-wang-lsr-stub-link-attributes

2022-07-27 Thread Aijun Wang
Hi, Ketan: Thanks for your comments and suggestions! Some responses are inline below. We can update the draft accordingly after we reach consensus on these points. Best Regards Aijun Wang China Telecom. 发件人: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] 代表 Ketan

Re: [Lsr] Comments on draft-wang-lsr-prefix-unreachable-annoucement

2022-07-27 Thread Aijun Wang
PUAM message. If all of nodes within one area support the PUAM capabilites, the PUAM message can be safely advertised without the additional LSInfinity metric information. Then, how can the “legacy nodes MUST interpret as meaning reachable.” ? I wish to hear your explanation. Aijun Wang

[Lsr] 答复: Comments on draft-wang-lsr-stub-link-attributes

2022-07-27 Thread Aijun Wang
s(EPE like approach to the connected server), such information can also be utilized by other internal routers, not only the controller. Best Regards Aijun Wang China Telecom 发件人: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] 代表 Ketan Talaulikar 发送时间: 2022年7月27日 21:35 收件人: Aiju

Re: [Lsr] Comments on draft-wang-lsr-stub-link-attributes

2022-07-27 Thread Aijun Wang
can elaborate again to you——-“The prefix sub-TLV is not the link identifier, it is just one kind of link attributes”. Is it clear enough? Based on these facts, I think it is unnecessary to response your other baseless comments. Aijun Wang China Telecom > On Jul 28, 2022, at 12:51,

Re: [Lsr] Comments on draft-wang-lsr-stub-link-attributes

2022-07-28 Thread Aijun Wang
operate. Aijun Wang China Telecom > On Jul 28, 2022, at 14:58, Ketan Talaulikar wrote: > >  > Hi Acee, > > Thanks for your clarifications and please check inline below for responses as > co-author of the referenced BGP-LS draft with Aijun. > >> On Thu, Jul 28

Re: [Lsr] Comments on draft-wang-lsr-stub-link-attributes

2022-07-28 Thread Aijun Wang
links are used to correct servers, there is no remote-AS, remote ASBR ID information. But we can distinguish different stub link via their associated prefixes. Aijun Wang China Telecom > On Jul 28, 2022, at 15:03, Ketan Talaulikar wrote: > >  > Hi Aijun, > > Similar to Les, I

Re: [Lsr] Comments on draft-wang-lsr-prefix-unreachable-annoucement

2022-07-28 Thread Aijun Wang
glad that your comments have some bases, although you misunderstood something. Aijun Wang China Telecom > On Jul 29, 2022, at 02:04, Acee Lindem (acee) wrote: >  > Speaking as WG Member: > > Hi Ketan, > > Thanks for pointing out the similarities. Even after the recent c

Re: [Lsr] Comments on draft-wang-lsr-stub-link-attributes

2022-07-28 Thread Aijun Wang
. Best Regards Aijun Wang China Telecom From: Ketan Talaulikar Sent: Thursday, July 28, 2022 4:54 PM To: Aijun Wang Cc: Les Ginsberg (ginsberg) ; Acee Lindem (acee) ; lsr Subject: Re: [Lsr] Comments on draft-wang-lsr-stub-link-attributes Hi Aijun, Please check inline below

Re: [Lsr] Comments on draft-wang-lsr-stub-link-attributes

2022-07-29 Thread Aijun Wang
Hi, Robert: I think your proposal are valid. Option C like deployment can also use such information to select the optimized inter-AS link to reach the routers in other domain. The final effect will be like the EPE scenario. Aijun Wang China Telecom > On Jul 29, 2022, at 16:44, Robert Ras

Re: [Lsr] Comments on draft-wang-lsr-prefix-unreachable-annoucement

2022-07-29 Thread Aijun Wang
Hi, Peter: I think you and all the subscribers of the LSR mail list have noticed not only Zhibo express the opinions that LSInfinity cannot be used to indicate the prefix is unreachable. There should exist other explicit indication. Should we stop arguing this point then? Aijun Wang China

Re: [Lsr] Question about draft-ppsenak-lsr-igp-ureach-prefix-announce

2022-08-05 Thread Aijun Wang
ring the normal SPF computation. This allows advertisement of a prefix for purposes other than building the normal IP routing table. " The "purposes" of such prefixes should be indicated explicitly by other means, as that proposed in the PUA draft. Best Regards Aijun Wang

Re: [Lsr] WG adoption call for draft-ginsberg-lsr-rfc8919bis-02

2022-08-09 Thread Aijun Wang
of ASLA are still complex, the deployment of them are challenging. Is there any real deployment for RFC8919 until now? Best Regards Aijun Wang China Telecom -Original Message- From: lsr-boun...@ietf.org On Behalf Of Christian Hopps Sent: Monday, August 8, 2022 6:17 PM To: lsr@ietf.org

Re: [Lsr] WG adoption call for draft-ginsberg-lsr-rfc8919bis-02

2022-08-09 Thread Aijun Wang
. It is necessary to divide/group all the above items based on application, not just the attributes. Aijun Wang China Telecom > On Aug 9, 2022, at 18:31, Acee Lindem (acee) wrote: > > Hi Aijun, > > And the BIS changes are more clarifications than changes to the existing RFC

Re: [Lsr] WG adoption call for draft-ginsberg-lsr-rfc8919bis-02

2022-08-09 Thread Aijun Wang
alternative systematic solution will obsolete RFC8919 and RFC8920 together. The bis draft are just repeating its precedent, and will be replaced also accordingly, unless it solves the issues that I mentioned. Aijun Wang China Telecom > On Aug 9, 2022, at 21:50, Christian Hopps wrote: > &g

Re: [Lsr] Working Group Last Call for "OSPFv3 Extensions for SRv6" - draft-ietf-lsr-ospfv3-srv6-extensions-06.txt (Corrected Address)

2022-08-19 Thread Aijun Wang
the new “Locator LSA”. Best Regards Aijun Wang China Telecom From: lsr-boun...@ietf.org On Behalf Of Acee Lindem (acee) Sent: Saturday, July 30, 2022 1:17 AM To: lsr Cc: draft-ietf-lsr-ospfv3-srv6-extensi...@ietf.org Subject: [Lsr] Working Group Last Call for "OSPFv3 Extension

Re: [Lsr] Working Group Last Call for "OSPFv3 Extensions for SRv6" - draft-ietf-lsr-ospfv3-srv6-extensions-06.txt (Corrected Address)

2022-08-19 Thread Aijun Wang
its original purpose. Aijun Wang China Telecom > On Aug 19, 2022, at 18:27, Huzhibo > wrote: >  > Hi Aijun, > > Thanks for your detailed review and please check inline below for responses. > > > From: Lsr [mailto:lsr-boun...@ietf.org] On Behalf Of Aijun Wan

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-08 Thread Aijun Wang
goals. Best Regards Aijun Wang China Telecom From: lsr-boun...@ietf.org On Behalf Of Acee Lindem (acee) Sent: Saturday, October 8, 2022 4:03 AM To: Ketan Talaulikar ; Peter Psenak Cc: lsr@ietf.org Subject: Re: [Lsr] RFC 8362 and LSInfinity Hi Peter, Ketan, We’ll do another WG

Re: [Lsr] New Version Notification for draft-pkaneria-lsr-multi-tlv-01.txt

2022-10-08 Thread Aijun Wang
ted advertisements of the same TLV. Is there any other difficult points to be solved? Best Regards Aijun Wang China Telecom -Original Message- From: lsr-boun...@ietf.org On Behalf Of Christian Hopps Sent: Sunday, October 9, 2022 8:49 AM To: Les Ginsberg (ginsberg) Cc: Christian Hopps ; Tony

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-10 Thread Aijun Wang
it is difficult and complex for the operator to run the network based on such special treatment. Best Regards Aijun Wang China Telecom -Original Message- From: lsr-boun...@ietf.org On Behalf Of Peter Psenak Sent: Monday, October 10, 2022 3:56 PM To: Aijun Wang ; 'Acee Lindem (acee)&

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-11 Thread Aijun Wang
. Best Regards Aijun Wang China Telecom -Original Message- From: lsr-boun...@ietf.org On Behalf Of Acee Lindem (acee) Sent: Tuesday, October 11, 2022 11:20 PM To: Peter Psenak (ppsenak) ; Aijun Wang ; 'Ketan Talaulikar' Cc: lsr@ietf.org Subject: Re: [Lsr] RFC 8362 and LSIn

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-12 Thread Aijun Wang
, LSInifinity is just the maximum value of the prefix metric. The above usage is same as the other value of the metric, then define them or not is trival-The operator can use any other large enough value to divert the traffic in your mentioned scenarios. Best Regards Aijun Wang

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-12 Thread Aijun Wang
other attached area as one summary prefix? Aijun Wang China Telecom > On Oct 12, 2022, at 18:22, Acee Lindem (acee) > wrote: > >  > > On 10/12/22, 2:31 AM, "Lsr on behalf of Aijun Wang" behalf of wangai...@tsinghua.org.cn> wrote: > >Hi, Acee: > &g

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-12 Thread Aijun Wang
eaningthe last resort of the route to the prefixes. Best Regards Aijun Wang China Telecom -Original Message- From: lsr-boun...@ietf.org On Behalf Of Huzhibo Sent: Thursday, October 13, 2022 2:26 PM To: Peter Psenak ; lsr@ietf.org Subject: Re: [Lsr] RFC 8362 and LSInfinity Hi LSR: LS

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-13 Thread Aijun Wang
e of the R-bit [RFC5340] as a solution to the problem addressed in the text." Best Regards Aijun Wang China Telecom -Original Message- From: lsr-boun...@ietf.org On Behalf Of Acee Lindem (acee) Sent: Wednesday, October 12, 2022 10:07 PM To: Aijun Wang Cc: Peter Psenak (p

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-13 Thread Aijun Wang
usage of LSInfinity defined in RFC2327. It should be expanded further. How to apply it in RFC8362 is another issue, as indicated my responses in another thread. In summary, again, we should constrain or depreciate the confusion usages of LSInfinity. Aijun Wang China Telecom > On Oct 13, 2

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-13 Thread Aijun Wang
One correction: “It should be expanded further” should be “it shouldn’t be expanded further” Aijun Wang China Telecom > On Oct 13, 2022, at 18:53, Aijun Wang wrote: > > Hi, Acee and Peter: > > I think you all misunderstood the intent of his scenario. > The correct und

Re: [Lsr] RFC 8362 and LSInfinity

2022-10-16 Thread Aijun Wang
A use the same length of metric fields. I think we can find other solutions for the proposals that based on the "LSInfinity", if not, please state them on the list, let's discuss them and accomplish such aims. Best Regards Aijun Wang China Telecom -Original Message-

Re: [Lsr] I-D Action: draft-wang-lsr-stub-link-attributes-05.txt

2022-10-20 Thread Aijun Wang
ger to get rough consensus for the forwarding of this updated draft. Best Regards Aijun Wang China Telecom -Original Message- From: lsr-boun...@ietf.org On Behalf Of internet-dra...@ietf.org Sent: Friday, October 21, 2022 11:08 AM To: i-d-annou...@ietf.org Cc: lsr@ietf.org Subject: [Lsr]

Re: [Lsr] I-D Action: draft-wang-lsr-stub-link-attributes-05.txt

2022-10-20 Thread Aijun Wang
One correction for the hyper link of the updated draft: https://datatracker.ietf.org/doc/html/draft-wang-lsr-stub-link-attributes-05 The number 5 is carried return in the second line in previous mail. -Original Message- From: lsr-boun...@ietf.org On Behalf Of Aijun Wang Sent: Friday

[Lsr] 【Object the update of LSInfinity usage in RFC8362 】Re: I-D Action: draft-ietf-lsr-ip-flexalgo-07.txt

2022-10-21 Thread Aijun Wang
Object! I have summarized the reason at https://mailarchive.ietf.org/arch/msg/lsr/iqcgBvMIPcVxWpfK-AW9MUhpKes/. Please give the reasonable responses before making any unsound attempts. Such updates, implementation and deployment will introduce chaos within the network. Aijun Wang China

Re: [Lsr] 【Object the update of LSInfinity usage in RFC8362 】Re: I-D Action: draft-ietf-lsr-ip-flexalgo-07.txt

2022-10-28 Thread Aijun Wang
also several folks, include myself, aren’t convinced yet for such approaches. Aijun Wang China Telecom > On Oct 28, 2022, at 22:34, Peter Psenak > wrote: > > Aijun, > > several folks, including myself, has explained to you previously that your > claims regarding

Re: [Lsr] 【Object the update of LSInfinity usage in RFC8362 】Re: I-D Action: draft-ietf-lsr-ip-flexalgo-07.txt

2022-11-02 Thread Aijun Wang
So, the discussion will be back to the origin? -Original Message- From: lsr-boun...@ietf.org On Behalf Of Peter Psenak Sent: Wednesday, November 2, 2022 4:20 PM To: Aijun Wang Cc: Acee Lindem (acee) ; lsr@ietf.org Subject: Re: [Lsr] 【Object the update of LSInfinity usage in RFC8362 】Re

Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce / UPA IS-IS semantics

2022-11-09 Thread Aijun Wang
he meaning of “LSInfinity”, no more explanations, no more confusion then. Aijun Wang China Telecom > On Nov 9, 2022, at 12:06, Peter Psenak > wrote: > > Hi David, > >> On 09/11/2022 11:44, David Lamparter wrote: >> Hi Peter, hi all, >> to iterate on the co

Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce / UPA IS-IS semantics

2022-11-09 Thread Aijun Wang
One more information: The explicit solution, https://datatracker.ietf.org/doc/html/draft-wang-lsr-prefix-unreachable-annoucement-10 does not require all the nodes be upgraded simultaneously. Aijun Wang China Telecom > On Nov 9, 2022, at 12:06, Peter Psenak > Using a new Sub-TLV to

Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce / UPA IS-IS semantics

2022-11-09 Thread Aijun Wang
team. Aijun Wang China Telecom > >> I wasn't clear on that in the first mail but Bruno clarified >> that this would still be inside a high-metric prefix reachability TLV. >> The only difference is that there is a flag/sub-TLV inside that triggers >> UPA behavior. How

Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce / UPA IS-IS semantics

2022-11-10 Thread Aijun Wang
no more constrained for the network planning, network operations. There are already amounts of solutions cannot be deployed widespread in the network. Let’s take the explicit signaling approaches. Aijun Wang China Telecom > On Nov 10, 2022, at 10:41, Peter Psenak > wrote: > &g

Re: [Lsr] OSPF-GT

2022-11-10 Thread Aijun Wang
in some sense. Aijun Wang China Telecom > On Nov 10, 2022, at 10:48, Robert Raszuk wrote: > >  > Thx Acee ... > > Since you mentioned "sparse" and since you highlighted that OSPF is better > then ISIS for this as it runs over IP I took a risk if not using flood

Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce / UPA IS-IS semantics

2022-11-12 Thread Aijun Wang
Hi, Robert: > "other than building the normal IP routing table" There may be different purposes, so advertise the “unreachable within the summary address” should be signed explicitly. Aijun Wang China Telecom > On Nov 12, 2022, at 11:59, Robert Raszuk wrote

Re: [Lsr] Two small potential typing errors in draft-ietf-lsr-flex-algo

2023-02-14 Thread Aijun Wang
What’s the reason to keep area in the description? Is there any flooding activities that based on area?I suggest also remove the mention of area in these descriptions.Aijun WangChina TelecomOn Feb 14, 2023, at 18:16, Chris Parker wrote:Thank you to all who replied for your consideration, and than

Re: [Lsr] Two small potential typing errors in draft-ietf-lsr-flex-algo

2023-02-14 Thread Aijun Wang
Hi, Les:As I remembered, https://datatracker.ietf.org/doc/draft-ietf-lsr-isis-extended-hierarchy/  will not be forwarded, and the proposed hierarchy within ISIS is not practical.Then, it seems that we can still treat area same as the level 1.  It’s the time to reduce the confusion?Aijun WangChina T

[Lsr] PUA&UPA Converge Efforts—-Re: draft-ppsenak-lsr-igp-ureach-prefix-announce

2023-03-26 Thread Aijun Wang
Hi, Bruno:Let me answer some questions from you based on the current PUA solution. From the inline replies, we think the converged draft should be based on PUA draft.Aijun WangChina TelecomOn Mar 27, 2023, at 14:00, bruno.decra...@orange.com wrote: Hi authors,   Please find below some que

Re: [Lsr] Interdomain UPA & UP Flag

2023-03-27 Thread Aijun Wang
Agree. The possible scenario for UP flag is not the original intention of our discussion. We should abandon it and focus mainly on the other aspects of the solution. Aijun Wang China Telecom > On Mar 27, 2023, at 17:06, Robert Raszuk wrote: > >  > Hi, > > I woul

Re: [Lsr] Interdomain UPA & UP Flag

2023-03-28 Thread Aijun Wang
There is already overload bit to accomplish the maintenance purposes, Why do you guys repeat such work again? Aijun Wang China Telecom > On Mar 28, 2023, at 18:00, Shraddha Hegde > wrote: > >  > Hi Robert, > > > Second, if you say this is needed for BGP free dep

Re: [Lsr] Interdomain UPA & UP Flag

2023-03-28 Thread Aijun Wang
the accident network failures. Please pay more attentions to other aspects of such mechanism. Aijun Wang China Telecom > On Mar 28, 2023, at 18:51, Peter Psenak > wrote: > > On 28/03/2023 11:41, Aijun Wang wrote: >> There is already overload bit to accomplish the maintenance p

Re: [Lsr] Interdomain UPA & UP Flag

2023-03-28 Thread Aijun Wang
The following sentence should be: > If it is planned, why the overlay service being switched over as scheduled? If it is planned, why doesn’t the overlay service be switched over as scheduled? Aijun Wang China Telecom > On Mar 28, 2023, at 19:53, Aijun Wang wrote: > >

Re: [Lsr] Interdomain UPA & UP Flag

2023-03-28 Thread Aijun Wang
Hi, Shraddha: The PUA/UPA message is mainly for control plane switch over, not for data plane switch over. For the planned maintenance, the controller plane switch over should be planned as well. It doesn’t need IGP to step in. Aijun Wang China Telecom > On Mar 29, 2023, at 00:29, Shrad

Re: [Lsr] PUA&UPA Converge Efforts(LSInfinity or MaxAge)

2023-03-28 Thread Aijun Wang
n the network long time. Exploitable this value is straightforward to be implemented/deployed.Aijun WangChina TelecomOn Mar 27, 2023, at 15:02, Aijun Wang wrote:Hi, Bruno:Let me answer some questions from you based on the current PUA solution. From the inline replies, we think the converged draft shou

Re: [Lsr] I-D Action: draft-wang-lsr-stub-link-attributes-07.txt

2023-06-04 Thread Aijun Wang
Hi, All Experts: The main updates of this version is that we put the newly defined "OSPF Stub-Link TLV" back into the Inter-AS-TE-v2 LSA and Inter-AS-TE-v3 LSA for OSPFv2/v3 respectively. Your comments are welcome. We think it is ready for the WG adoption call then. Best Regards

[Lsr] 答复: Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-ureach-prefix-announce-04 (Fixed draft name)

2023-08-24 Thread Aijun Wang
://datatracker.ietf.org/doc/draft-wang-lsr-prefix-unreachable-annoucement/ The LSR WG should consider to adopt the more comprehensive and simple solution, not the partial and complex design. Best Regards Aijun Wang China Telecom -邮件原件- 发件人: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] 代表 Acee

[Lsr] 答复: Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-ureach-prefix-announce-04 (Fixed draft name)

2023-08-24 Thread Aijun Wang
om the above foundation information, I would like to hear why you can't >admit that draft >https://datatracker.ietf.org/doc/draft-wang-lsr-prefix-unreachable-annoucement/ > is the first document that provide the problem and the explicit signaling >mechanism. Best Regards Aij

Re: [Lsr] Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-ureach-prefix-announce-04 (Fixed draft name)

2023-08-29 Thread Aijun Wang
Hi, Ketan:Which part in https://datatracker.ietf.org/doc/draft-wang-lsr-prefix-unreachable-annoucement/ is not workable?I want to remind you again that it is the above draft initiates the problem first, insists that the explicit signaling was the direction, covers more scenarios that draft-ppsenak

Re: [Lsr] Regd draft-wang-lsr-prefix-unreachable-annoucement

2023-08-29 Thread Aijun Wang
diffs across the 13 versions illustrate the history and evolution.I am unable to explain in ways other than what has been already done in the past threads.Thanks,KetanOn Tue, Aug 29, 2023 at 1:33 PM Aijun Wang <wangai...@tsinghua.org.cn> wrote:Hi, Ketan:Which part in https://datatracker.

[Lsr] 答复: Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-unreach-prefix-announce-04

2023-08-30 Thread Aijun Wang
://mailarchive.ietf.org/arch/msg/lsr/r-qLlA2JW-JOLVf_LBlEXwE01jE/ Best Regards Aijun Wang China Telecom 发件人: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] 代表 Les Ginsberg (ginsberg) 发送时间: 2023年8月31日 10:57 收件人: Huzhibo ; Peter Psenak (ppsenak) ; linchangwang ; Acee Lindem ; lsr 抄

[Lsr] 答复: Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-unreach-prefix-announce-04

2023-08-31 Thread Aijun Wang
Hi, Les: Please do not mislead the experts within the LSR. Detail replies are inline below. Best Regards Aijun Wang China Telecom 发件人: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] 代表 Les Ginsberg (ginsberg) 发送时间: 2023年8月31日 22:49 收件人: Huzhibo ; Peter Psenak (ppsenak

[Lsr] 答复: Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-ureach-prefix-announce-04

2023-08-31 Thread Aijun Wang
switchovered.” Best Regards Aijun Wang China Telecom 发件人: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] 代表 Acee Lindem 发送时间: 2023年9月1日 0:50 收件人: Robert Raszuk 抄送: Les Ginsberg (ginsberg) ; Huzhibo ; Peter Psenak ; linchangwang ; lsr 主题: Re: [Lsr] Working Group Adoption of &quo

Re: [Lsr] Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-ureach-prefix-announce-04

2023-09-01 Thread Aijun Wang
-ppsenak(March 25,2022)Then, which draft copy or incorporate which draft?Aijun WangChina TelecomOn Sep 1, 2023, at 20:05, Acee Lindem wrote:Hi Aijun, On Aug 31, 2023, at 23:36, Aijun Wang wrote:Hi,Acee: Please read https://datatracker.ietf.org/doc/html/draft-wang-lsr-prefix-unreachable-annoucement

[Lsr] 答复: Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-ureach-prefix-announce-04

2023-09-05 Thread Aijun Wang
solution. As one of the most important WG within IETF, I think LSR WG should respect the original contributions to the WG. It is too hurry to consider or adopt only the draft that you prefer, especially the follower draft. Best Regards Aijun Wang China Telecom 发件人: lsr-boun

  1   2   3   4   5   6   7   >