Re: [Lsr] UPA/PUA

2022-07-18 Thread Robert Raszuk
t; >>> >>> >>>PUAM can track the unreachability of the important component >>> >>>prefixes to ensure traffic is not black hole sink routed for the >>> >>> above overlay services. >>> >>> >>> >&g

Re: [Lsr] UPA/PUA

2022-07-18 Thread Greg Mirsky
ic 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. >> >> >> >> >> >>

Re: [Lsr] UPA/PUA

2022-07-18 Thread Robert Raszuk
Monday, July 18, 2022 11:06 AM > *To:* Aijun Wang > *Cc:* Robert Raszuk ; Christian Hopps < > cho...@chopps.org>; Peter Psenak ; lsr > *Subject:* Re: [Lsr] UPA/PUA > > > > Hi Aijun, > > I cannot figure out how you draw such a conclusion from my comments to >

Re: [Lsr] UPA/PUA

2022-07-18 Thread Robert Raszuk
Hi Greg, I am observing we are partially on the same page. But if we compare full mesh PE-PE multihop BFD sessions vs PE-ABR then flooding or DROID to remote PEs don't you think that the latter model is far more scalable and operationally friendly ? To make it clear - I am not against PE-PE

Re: [Lsr] UPA/PUA

2022-07-17 Thread Aijun Wang
China Telecom From: Greg Mirsky Sent: Monday, July 18, 2022 11:06 AM To: Aijun Wang Cc: Robert Raszuk ; Christian Hopps ; Peter Psenak ; lsr Subject: Re: [Lsr] UPA/PUA Hi Aijun, I cannot figure out how you draw such a conclusion from my comments to Robert. You may recall that from very

Re: [Lsr] UPA/PUA

2022-07-17 Thread Greg Mirsky
Hi Aijun, I cannot figure out how you draw such a conclusion from my comments to Robert. You may recall that from very early in the discussion, I was not enthusiastic, to put it lightly, about either of the solutions. Instead, I believe that multi-hop BFD should be used to monitor the continuity

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