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Re: [Srcomp] Section 3 analysis for CRH

"Darren Dukes (ddukes)" <ddukes@cisco.com> Tue, 13 April 2021 11:46 UTC

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From: "Darren Dukes (ddukes)" <ddukes@cisco.com>
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, Ron Bonica <rbonica@juniper.net>, "srcomp@ietf.org" <srcomp@ietf.org>
Thread-Topic: Section 3 analysis for CRH
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Date: Tue, 13 Apr 2021 11:46:29 +0000
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Subject: Re: [Srcomp] Section 3 analysis for CRH
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Thanks for that pointer, however there is no mention of adjacency nor binding SIDs in that text.

   Each CRH-FIB entry contains:

   o  An IPv6 address.

   o  A topological function.

   o  Arguments for the topological function (optional).

   o  Flags.

   o  A service function (optional).

   o  Arguments for the service function (optional).

   The IPv6 address can represent either:

   o  An interface on the next segment endpoint.

   o  An SRv6 SID [I-D.ietf-spring-srv6-network-programming],
      instantiated on the next segment endpoint.


Darren
On 2021-04-12, 10:48 AM, "Ron Bonica" <rbonica=40juniper.net@dmarc.ietf.org> wrote:


Darren,

Take a look at Section 4 of the CRH draft.

                               Ron




Juniper Business Use Only
From: Srcomp <srcomp-bounces@ietf.org> On Behalf Of Darren Dukes (ddukes)
Sent: Monday, April 12, 2021 10:34 AM
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>; srcomp@ietf.org
Subject: Re: [Srcomp] Section 3 analysis for CRH

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Hi Ron, the CRH draft does not describe how adjacency nor binding segments work for CFIB.
Can you please point to the specifications describing the functionality claimed in 3.2.1.

Thanks
  Darren

On 2021-04-09, 11:58 AM, "Srcomp" <srcomp-bounces@ietf.org<mailto:srcomp-bounces@ietf.org>> wrote:

Folks,

The following is CRH data for Section 3 of the analysis document:

3.1 – TBD. I will work on this Monday and Tuesday
3.2.1      FSID – Compliant
                FSCOPE – Compliant
                F.PFX – Compliant
F.ADJ – Compliant
F.BIND – Compliant
F.PEER – specification required
F.SVC – compliant
F.ALG – compliant (see IP Flexalgo draft)
F.TILFA – compliant
F.SEC – Compliant
F.IGP – Compliant ( see ISIS CRH draft)
F.BGP – Compliant (see CRH BGP draft)
F.POL - compliant
                F.BLS – specification required
F.SFC - compliant
                F.PING: compliant

3.2.2 Compliant. Satisfies this requirement by using a binding SID to impose an additional SRv6 header (IPv6 header plus optional SRH) with non-compressed SID.

3.2.3. Compliant. See Section 2.1. for compression at each SR path length.

3.2.4. Not compliant

3.3.1. Compliant. And classic SID can be represented by a CRH SID.


3.4 Compliant. The 16-bit CRH SID can represent 65K objects. The 32-bit SID and TPF can represent 4G objects.

                                              Ron


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