:08 PM
To: Aijun Wang
Cc: Les Ginsberg (ginsberg) ; Gyan Mishra
; Peter Psenak ;
Huzhibo ; Aijun Wang ; lsr
; Acee Lindem (acee) ; Xiaoyaqun
; Tony Przygienda
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hi,
Intra area ?
s Ginsberg (ginsberg) ; Gyan Mishra <
> hayabusa...@gmail.com>; Peter Psenak ;
> Huzhibo ; Aijun Wang ; lsr <
> lsr@ietf.org>; Acee Lindem (acee) ; Xiaoyaqun <
> xiaoya...@huawei.com>; Tony Przygienda
> *Subject:* Re: [Lsr] New Version Notification for
> draft-wang-
(acee) ; Xiaoyaqun
; Tony Przygienda
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hi Aijun,
> the BGP next-hop is reachable
Nope you missed the crux of the message.
The next hop will be unreachable in the source area/le
> *Robert
> Raszuk
> *Sent:* Monday, September 7, 2020 4:54 PM
> *To:* Aijun Wang
> *Cc:* Les Ginsberg (ginsberg) ; Gyan Mishra <
> hayabusa...@gmail.com>; Peter Psenak ;
> Huzhibo ; Aijun Wang ; lsr <
> lsr@ietf.org>; Acee Lindem (acee) ; Xiaoyaqun <
> xiao
;
Huzhibo ; Aijun Wang ; lsr
; Acee Lindem (acee) ; Xiaoyaqun
; Tony Przygienda
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hi Aijun,
[WAJ] If necessary, we can advertise the MAX_T_PUA(configurable time for the
hold of PUA information
Hi Aijun,
> *[WAJ] If necessary, we can advertise the MAX_T_PUA(configurable time for
> the hold of PUA information on the nodes) among the area.*
>
> *If one node connect to the network after the disappearance of the PUA
> destination, there will be no services can be established/run on these
>
; Tony Przygienda
; Aijun Wang ; Robert Raszuk
; Huzhibo ; Aijun Wang
; Peter Psenak ;
lsr ; Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Agreed that Rift negative disaggregation and PUA proposed are in no way
comparable.
*To:* Aijun Wang
> *Cc:* Gyan Mishra ; Robert Raszuk <
> rob...@raszuk.net>; Huzhibo ; Aijun Wang <
> wang...@chinatelecom.cn>; Peter Psenak ;
> lsr ; Acee Lindem (acee) ; Xiaoyaqun <
> xiaoya...@huawei.com>
> *Subject:* Re: [Lsr] New Version Notification f
To: Aijun Wang
Cc: Gyan Mishra ; Robert Raszuk ;
Huzhibo ; Aijun Wang ; Peter
Psenak ; lsr ; Acee Lindem
(acee) ; Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
I read the draft since the longish thread triggered my interest. As
;
Huzhibo ; Aijun Wang ; Peter
Psenak ; lsr ; Acee Lindem
(acee) ; Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
I read the draft since the longish thread triggered my interest. As Peter said
very thin ice walking with magic
6, 2020 4:44 PM
> *To:* Aijun Wang
> *Cc:* Peter Psenak ; Robert Raszuk <
> rob...@raszuk.net>; Huzhibo ; Aijun Wang <
> wang...@chinatelecom.cn>; lsr ; Acee Lindem (acee) <
> a...@cisco.com>; Xiaoyaqun
> *Subject:* Re: [Lsr] New Version Notification for
> d
sent in the RIB before the summary can be advertised.
>
>
>
> Kind Regards
>
>
>
> Gyan
>
>
>
> On Tue, Aug 4, 2020 at 11:25 PM Aijun Wang
> wrote:
>
> Hi, Robert:
>
>
>
> *From:* lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org]
...@ietf.org] On Behalf Of Gyan
Mishra
Sent: Thursday, August 6, 2020 4:44 PM
To: Aijun Wang
Cc: Peter Psenak ; Robert Raszuk
; Huzhibo ; Aijun Wang
; lsr ; Acee Lindem (acee)
; Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hi
i.com>
> *Subject:* Re: [Lsr] New Version Notification for
> draft-wang-lsr-prefix-unreachable-annoucement-03.txt
>
>
>
> [WAJ] Such information is for underlay link state and should be flooded
> via IGP? The ambiguity arises from IGP summary behavior and should be
> solved by
Hi, Robert:
From: lsr-boun...@ietf.org [mailto:lsr-boun...@ietf.org] On Behalf Of Robert
Raszuk
Sent: Friday, July 31, 2020 6:21 PM
To: Aijun Wang
Cc: Peter Psenak ; Huzhibo
; Aijun Wang ; lsr
; Acee Lindem (acee) ; Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang
>
> [WAJ] Such information is for underlay link state and should be flooded
> via IGP? The ambiguity arises from IGP summary behavior and should be
> solved by itself?
>
Well if we look at this problem from a distance while on surface it seems
like an IGP issue (not to mention some which use BGP
Hi, Acee:
Aijun Wang
China Telecom
> On Jul 31, 2020, at 01:45, Acee Lindem (acee) wrote:
>
>
> On 7/30/20, 1:31 PM, "Lsr on behalf of Acee Lindem (acee)"
> wrote:
>
>
>
>On 7/30/20, 12:37 PM, "Lsr on behalf of Peter Psenak"
> wrote:
>
>>On 30/07/2020 18:03, Acee Lindem
;
>>
>>
>> --
>> 胡志波 Hu Zhibo
>> Mobile: +86-18618192287
>> Email: huzh...@huawei.com
>>
>> 发件人：Acee Lindem (acee)
>> 收件人：Peter Psenak ;Robert Raszuk
>>
>> 抄 送：Aijun Wang ;X
On 7/30/20, 1:31 PM, "Lsr on behalf of Acee Lindem (acee)"
wrote:
On 7/30/20, 12:37 PM, "Lsr on behalf of Peter Psenak" wrote:
On 30/07/2020 18:03, Acee Lindem (acee) wrote:
> So, how do we define a reachable route - is it any route subsumed by
the summary LSA that we
On 7/30/20, 12:37 PM, "Lsr on behalf of Peter Psenak" wrote:
On 30/07/2020 18:03, Acee Lindem (acee) wrote:
> So, how do we define a reachable route - is it any route subsumed by the
summary LSA that we knew about in the past that becomes unreachable? When the
PUA is withdrawn, how
Hi Zhibo,
From: Lsr on behalf of Huzhibo
Date: Thursday, July 30, 2020 at 12:14 PM
To: Acee Lindem , Peter Psenak
, Robert Raszuk
Cc: lsr , Aijun Wang , Xiaoyaqun
, Aijun Wang
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
HI acee
Wang
mailto:wang...@chinatelecom.cn>>;Xiaoyaqun
mailto:xiaoya...@huawei.com>>;Huzhibo
mailto:huzh...@huawei.com>>;Aijun Wang
mailto:wangai...@tsinghua.org.cn>>;lsr
mailto:lsr@ietf.org>>
时 间：2020-07-31 00:04:02
主 题：Re: [Lsr] New Version Notification for
draft-wa
-
> 胡志波 Hu Zhibo
> Mobile: +86-18618192287
> Email: huzh...@huawei.com
> *发件人：*Acee Lindem (acee)
> *收件人：*Peter Psenak ;Robert Raszuk <
> rob...@raszuk.net>
> *抄 送：*Aijun Wang ;Xiaoyaqun
> ;Huzhibo
> ;Aijun Wang ;lsr <
> lsr@ietf.org>
> *时 间：*202
On 30/07/2020 18:03, Acee Lindem (acee) wrote:
So, how do we define a reachable route - is it any route subsumed by the
summary LSA that we knew about in the past that becomes unreachable? When the
PUA is withdrawn, how do we know whether it is because of expiration of the
interval or the
Lindem (acee)
收件人：Peter Psenak ;Robert Raszuk
抄 送：Aijun Wang ;Xiaoyaqun
;Huzhibo ;Aijun Wang
;lsr
时 间：2020-07-31 00:04:02
主 题：Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
So, how do we define a reachable route - is it any route subsumed by the
s
So, how do we define a reachable route - is it any route subsumed by the
summary LSA that we knew about in the past that becomes unreachable? When the
PUA is withdrawn, how do we know whether it is because of expiration of the
interval or the route becoming reachable again? This is a slippery
On 30/07/2020 16:30, Robert Raszuk wrote:
Hey Peter,
Not sure how smart you really want to be here but keep in mind that BGP
say option C may never hear about it all the way to the egress PE in
other domain or area ... It is almost always incongruent with IGP.
So if the BGP path is
Hey Peter,
Not sure how smart you really want to be here but keep in mind that BGP say
option C may never hear about it all the way to the egress PE in other
domain or area ... It is almost always incongruent with IGP.
So if the BGP path is installed it will indeed be at risk to resolve via
less
On 30/07/2020 16:14, Robert Raszuk wrote:
> 2：For bgp example，when the pe node down，the bgp peer must down
within
> 30 mintus，It will not get it up via cancle advertise pua.
for the above it is sufficient to advertise the unreachability for few
seconds from each ABR
> > 2：For bgp example，when the pe node down，the bgp peer must down within
> > 30 mintus，It will not get it up via cancle advertise pua.
>
> for the above it is sufficient to advertise the unreachability for few
> seconds from each ABR independently. That would be a much more solid
> proposal.
：Aijun Wang ;lsr ;Xiaoyaqun
时 间：2020-07-30 21:32:45
主 题：Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hi Zhibo,
On 30/07/2020 15:18, Huzhibo wrote:
> HI Peter：
>
> 1：No problem is a problem that never can be proved.
>
> 2：For bgp exa
: huzh...@huawei.com<mailto:huzh...@huawei.com>
发件人：Peter Psenak
收件人：Huzhibo ;Aijun Wang
抄 送：Aijun Wang ;lsr ;Xiaoyaqun
时 间：2020-07-30 21:02:49
主 题：Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Huzhibo,
On 30/07/2020 14:49, Huzhibo wrote:
M
To: Zhibo Hu ; Aijun Wang
; Yaqun Xiao
Subject: New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
A new version of I-D,
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
has been successfully submitted by Aijun Wang and posted to the IETF repository.
Name:
ion that using tunnel to redirect traffic among
>>>>> ABRs, when all ABRs reaches the PUA limit.
>>>>> 2) Describe fast rerouting to avoid routing black hole.
>>>>> 3) Defining PUA capabilities announcements for OSPFv2/OSPFv3 and ISIS.
>>
ing IETF LSR meeting.
Best Regards
Aijun Wang
China Telecom
-Original Message-
From: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org]
Sent: Monday, July 27, 2020 9:16 AM
To: Zhibo Hu ; Aijun Wang ; Yaqun Xiao
Subject: New Version Notification for
draft-wang-lsr-prefix-unreachable
t solution for PUA, for
>>>> example:
>>>> 1) Is it suitable to set the "Prefix Originator" sub-TLV to NULL to
>>>> indicate the prefix is unreachable?
>>>> 2) if not, what's the consideration? What's the other convincible solution?
>
etf.org [mailto:internet-dra...@ietf.org]
Sent: Monday, July 27, 2020 9:16 AM
To: Zhibo Hu ; Aijun Wang ; Yaqun Xiao
Subject: New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
A new version of I-D, draft-wang-lsr-prefix-unreachable-annoucement-03.txt
has been success
IETF LSR meeting.
>> Best Regards
>> Aijun Wang
>> China Telecom
>> -----Original Message-----
>> From: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org]
>> Sent: Monday, July 27, 2020 9:16 AM
>> To: Zhibo Hu ; Aijun Wang ;
>> Yaqun Xiao
>&g
ang
China Telecom
-Original Message-
From: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org]
Sent: Monday, July 27, 2020 9:16 AM
To: Zhibo Hu ; Aijun Wang ; Yaqun Xiao
Subject: New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
A new version o
ble
> solution?
>
> Wish to hear comments and suggestions on the above issues. We will
> also have the presentation on the coming IETF LSR meeting.
>
> Best Regards
>
> Aijun Wang
> China Telecom
>
> -Original Message-
>
for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hello Acee,
I would like to question your assessment that signalling unreachable routes is
unnecessary.
Imagine hierarchical network with areas. Under no failures area 1 advertises to
area 0 summary LSA with 1.1.1.0/24 <h
Subject: RE: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
From: Acee Lindem (acee) [mailto:a...@cisco.com]
An interesting encoding – note that the draft doesn’t use it for forwarding.
[Bruno] Agreed that the distinction between routing
Hi, Acee:
From: a...@cisco.com [mailto:a...@cisco.com]
Sent: Tuesday, July 28, 2020 9:22 PM
To: Aijun Wang ; 'Aijun Wang'
; lsr@ietf.org
Cc: 'Zhibo Hu' ; 'Yaqun Xiao'
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hi Aijun,
You
:18 PM
To: Acee Lindem (acee)
Cc: Aijun Wang ; lsr@ietf.org; Huzhibo
; Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hello Acee,
I would like to question your assessment that signalling unreachable routes is
unnecessary.
Imagine
, 2020 9:24 PM
To: Huzhibo ; Aijun Wang ;
lsr@ietf.org
Cc: Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
See my response to Aijun... Please provide topologies where the section 6.1
solution doesn't work.
Acee
On 7/27/20, 10:03 PM
.@ietf.org] On Behalf Of Robert Raszuk
Sent: Tuesday, July 28, 2020 11:18 AM
To: Acee Lindem (acee)
Cc: Aijun Wang ; Zhibo Hu ; Yaqun
Xiao ; lsr@ietf.org
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hello Acee,
I would like to question your
Monday, July 27, 2020 9:16 AM
To: Zhibo Hu ; Aijun Wang
; Yaqun Xiao
Subject: New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
A new version of I-D,
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
has been successfully submitted by Aij
: Aijun Wang
Date: Monday, July 27, 2020 at 9:57 PM
To: Acee Lindem , 'Aijun Wang' ,
"lsr@ietf.org"
Cc: 'Zhibo Hu' , 'Yaqun Xiao'
Subject: RE: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hi, Acee:
Let me try to answer your concerns.
28, 2020 11:18 AM
To: Acee Lindem (acee)
Cc: Aijun Wang ; Zhibo Hu ; Yaqun
Xiao ; lsr@ietf.org
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Hello Acee,
I would like to question your assessment that signalling unreachable routes
; Best Regards
>
> Aijun Wang
> China Telecom
>
> -Original Message-
> From: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org]
> Sent: Monday, July 27, 2020 9:16 AM
> To: Zhibo Hu ; Aijun Wang ;
> Yaqun Xiao
> Subject:
, 2020 1:51 AM
To: Aijun Wang ; lsr@ietf.org
Cc: Huzhibo ; Xiaoyaqun
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Speaking as an LSR Working Group member:
Asking the WG precisely how to advertise prefix unreachability is the wrong
question
: Tuesday, July 28, 2020 1:51 AM
To: Aijun Wang ; lsr@ietf.org
Cc: 'Zhibo Hu' ; 'Yaqun Xiao'
Subject: Re: [Lsr] New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Speaking as an LSR Working Group member:
Asking the WG precisely how to advertise prefix
Aijun Wang
China Telecom
-Original Message-
From: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org]
Sent: Monday, July 27, 2020 9:16 AM
To: Zhibo Hu ; Aijun Wang ;
Yaqun Xiao
Subject: New Version Notification for
draft-wang-lsr-prefix-unreachabl
ternet-dra...@ietf.org]
Sent: Monday, July 27, 2020 9:16 AM
To: Zhibo Hu ; Aijun Wang ; Yaqun
Xiao
Subject: New Version Notification for
draft-wang-lsr-prefix-unreachable-annoucement-03.txt
A new version of I-D, draft-wang-lsr-prefix-unreachable-annoucement-03.txt
has been successfully submitted by
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