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 14:12 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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[long list of individual email addresses trimmed from cc, mailing lists left]

Peter,

On May 29, 2020, at 5:11 AM, Peter Psenak <ppsenak=40cisco.com@dmarc.ietf.org<mailto:ppsenak=40cisco.com@dmarc.ietf.org>> wrote:

if CRH-SIDs are of local significance how is the loose source routing
going to be supported?

By having the locally-significant CRH identifier (I’ve lost track of the nom du jour :-) map in the CRH-FIB to a remote address (“segment endpoint”), toward which the packet is forwarded along the least-cost path. This is explicit in section 4:


   o  Forward the packet to the next-hop along the least-cost path to
      the next segment endpoint.


Regards,

—John