Re: [Lsr] Concerns with draft-chunduri-lsr-isis-preferred-path-routing

Uma Chunduri <uma.chunduri@huawei.com> Tue, 17 July 2018 13:43 UTC

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From: Uma Chunduri <uma.chunduri@huawei.com>
To: Peter Psenak <ppsenak@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "lsr@ietf.org" <lsr@ietf.org>
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Thread-Topic: [Lsr] Concerns with draft-chunduri-lsr-isis-preferred-path-routing
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Date: Tue, 17 Jul 2018 13:43:10 +0000
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Subject: Re: [Lsr] Concerns with draft-chunduri-lsr-isis-preferred-path-routing
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Hi Peter,


-----Original Message-----
From: Peter Psenak [mailto:ppsenak@cisco.com] 
Sent: Tuesday, July 17, 2018 9:34 AM
To: Uma Chunduri <uma.chunduri@huawei.com>om>; Ketan Talaulikar (ketant) <ketant@cisco.com>om>; lsr@ietf.org
Cc: spring@ietf.org
Subject: Re: [Lsr] Concerns with draft-chunduri-lsr-isis-preferred-path-routing


	> flex-algo is NOT a per path state. It's a regular prefix-SID, which is bound to a prefix only.

Not quite. I will come back to this bit later.

	>The problem with your proposal is that you flood all paths to all routers in the area and ask every router to evaluate all of them and see which of them may apply. This scale poorly.

Please see Section 6, in 01 version.

--
Uma C.