Re: [Sidrops] WG Adoption call for draft-borchert-sidrops-bgpsec-validation-signaling-01 (9/16-9/30)

"Jakob Heitz (jheitz)" <jheitz@cisco.com> Tue, 24 September 2019 19:32 UTC

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From: "Jakob Heitz (jheitz)" <jheitz@cisco.com>
To: "Montgomery, Douglas (Fed)" <dougm=40nist.gov@dmarc.ietf.org>, Randy Bush <randy@psg.com>, Keyur Patel <keyur@arrcus.com>
CC: "sidrops@ietf.org" <sidrops@ietf.org>
Thread-Topic: [Sidrops] WG Adoption call for draft-borchert-sidrops-bgpsec-validation-signaling-01 (9/16-9/30)
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Date: Tue, 24 Sep 2019 19:32:22 +0000
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References: <0BBFA8C1-A13D-4CC9-A72D-ABAE797F2E4F@arrcus.com> <m28sqouepr.wl-randy@psg.com> <875A2007-9546-4CE3-AD32-15D4E7F7C29E@nist.gov>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/sidrops/u_TcKT5SoNgDnNaqxOQ833Uj_Wc>
Subject: Re: [Sidrops] WG Adoption call for draft-borchert-sidrops-bgpsec-validation-signaling-01 (9/16-9/30)
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I would be in favor of carving off another byte from the reserved field.
Redefining the validation state to add the new information instead would confuse older receivers that do not understand the new code points.

In addition, I would add another point to the BGPSec validation state: BGPSec attribute not present or in error.

   +-------+------------------------------+
   | Value | Meaning                      |
   +-------+------------------------------+
   |   0   | Lookup result = "Unverified" |
   |   1   | Lookup result = "Valid"      |
   |   2   | Lookup result = "Not valid"  |
   |   3   | Lookup result = "BGPSec attribute not present or in error"
   +-------+------------------------------+

If it were to use a reserved byte of the RFC8097 community, 0 for unverified would work, I think.

Regards,
Jakob.

-----Original Message-----
From: Sidrops <sidrops-bounces@ietf.org> On Behalf Of Montgomery, Douglas (Fed)
Sent: Monday, September 16, 2019 4:02 PM
To: Randy Bush <randy@psg.com>om>; Keyur Patel <keyur@arrcus.com>
Cc: sidrops@ietf.org
Subject: Re: [Sidrops] WG Adoption call for draft-borchert-sidrops-bgpsec-validation-signaling-01 (9/16-9/30)

Randy,

Are you suggesting keeping the 0x43 0x00 code point, but redefining its validation state byte with additional values and meanings for path validation?

Or carving off another byte from reserved?

Either of those sounds fine and save bits.   

Clearly there would need to be a new spec that that adds the words to do that.

dougm
--
Doug Montgomery, Manager Internet  & Scalable Systems Research @ NIST
 

On 9/16/19, 5:13 PM, "Sidrops on behalf of Randy Bush" <sidrops-bounces@ietf.org on behalf of randy@psg.com> wrote:

    "This document defines a new BGP non-transitive extended community to
    carry the BGPsec path validation state inside an autonomous system."
    
    given the one in RFC 8097, we need a new one because?
    
    randy
    
    _______________________________________________
 

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