Re: [spring] CRH is back to the SPRING Use-Case - Re: Size of CR in CRH

John Scudder <jgs@juniper.net> Fri, 29 May 2020 14:33 UTC

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From: John Scudder <jgs@juniper.net>
To: Peter Psenak <ppsenak@cisco.com>
CC: "rtg-ads@ietf.org" <rtg-ads@ietf.org>, "spring@ietf.org" <spring@ietf.org>, 6man <6man@ietf.org>
Subject: Re: [spring] CRH is back to the SPRING Use-Case - Re: Size of CR in CRH
Thread-Topic: [spring] CRH is back to the SPRING Use-Case - Re: Size of CR in CRH
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On May 29, 2020, at 10:28 AM, Peter Psenak <ppsenak@cisco.com<mailto:ppsenak@cisco.com>> wrote:

how do nodes in the network learn about the local CRH identifier a node
X allocated for a prefix residing on node Y?

This is also answered in section 4, AFAICT:


   The CRH-FIB can be populated:

   o  By an operator, using a Command Line Interface (CLI).

   o  By a controller, using the Path Computation Element (PCE)
      Communication Protocol (PCEP) [RFC5440<https://tools.ietf.org/html/rfc5440>] or the Network
      Configuration Protocol (NETCONF) [RFC6241<https://tools.ietf.org/html/rfc6241>]1>].

   o  By a distributed routing protocol [ISO10589-Second-Edition<https://tools.ietf.org/html/draft-bonica-6man-comp-rtg-hdr-22#ref-ISO10589-Second-Edition>]n>],
      [RFC5340<https://tools.ietf.org/html/rfc5340>]0>], [RFC4271<https://tools.ietf.org/html/rfc4271>]1>].


I imagine the list isn’t meant to be exhaustive, some other minor variations have been discussed on-list IIRC.

—John