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Re: [Idr] Adoption call for BGP Auto-Configuration drafts (5/1 to 5/23/2022) - 3 weeks

"Acee Lindem (acee)" <acee@cisco.com> Thu, 05 May 2022 19:12 UTC

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: [Idr] Adoption call for BGP Auto-Configuration drafts (5/1 to 5/23/2022) - 3 weeks
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Date: Thu, 05 May 2022 19:11:55 +0000
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Subject: Re: [Idr] Adoption call for BGP Auto-Configuration drafts (5/1 to 5/23/2022) - 3 weeks
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HI Sue,
It would be quite strange if I didn’t support my own draft. See inline.

From: Idr <idr-bounces@ietf.org> on behalf of Susan Hares <shares@ndzh.com>
Date: Tuesday, May 3, 2022 at 8:22 AM
To: IDR List <idr@ietf.org>
Subject: [Idr] Adoption call for BGP Auto-Configuration drafts (5/1 to 5/23/2022) - 3 weeks


IDR Working Group,



BGP auto-configuration has four proposals for consideration for adoption by

the IDR Working Group:



- draft-acee-idr-lldp-peer-discovery

https://datatracker.ietf.org/doc/draft-acee-idr-lldp-peer-discovery/



- draft-ietf-lsvr-l3dl + draft-ietf-lsvr-l3dl-ulpc

https://datatracker.ietf.org/doc/draft-ietf-lsvr-l3dl/

https://datatracker.ietf.org/doc/draft-ietf-lsvr-l3dl-ulpc/

https://datatracker.ietf.org/doc/draft-ietf-lsvr-l3dl-signing/



- draft-minto-idr-bgp-auto-discovery

https://datatracker.ietf.org/doc/draft-minto-idr-bgp-autodiscovery/



- draft-ymbk-idr-l3dn + draft-ymbk-idr-l3dn-ulpc

https://datatracker.ietf.org/doc/draft-ymbk-idr-l3nd/

https://datatracker.ietf.org/doc/draft-ymbk-idr-l3nd-ulpc/





These proposals address the core issue of BGP auto-configuration in

different ways:

- What security model should we require?

- What OSI layer? (Layer 2, Layer 3)

- Does it provide a session layer?



A brief summary of these properties for each proposal under consideration

for adoption:



draft-acee-idr-lldp-peer-discovery:

- Operates at Layer 2 as an extension to the LLDP protocol.

- Security optional, provided by MACSEC.

- Does not provide (or require) a session layer.





As a co-author, I support WG adoption. It is a quite light-weight approach to BGP discovery and most routing platforms already support LLDP. While no one has implemented the complete draft, BGP LLDP variations have already been implemented by some vendors.



I don’t know of any IPR on the draft.







draft-ietf-lsvr-l3dl + draft-ietf-lsvr-l3dl-ulpc:

- Operates at Layer 2.

- Security varies from optional to certificate based.

- Provides its own session layer as part of the protocol.



I don’t feel that adoption of BGP LLDP discovery would preclude adoption of this discovery protocol. However, I don’t have a strong opinion or whether it should run over its own session layer or TCP.



Thanks,
Acee



draft-minto-idr-bgp-auto-discovery

- Operates at Layer 3 link-local multicast.

- Shared key authentication.

- Does not provide (or require) a session layer.



draft-ymbk-idr-l3dn + draft-ymbk-idr-l3dn-ulpc

- Operates at Layer 3 with a link-local multicast component, and a unicast

 component.

- Security varies from optional to using certificate based with TLS.

- Uses TCP for session layer for its unicast component.



What protocol or protocols should be adopted by the Working Group for

BGP auto-configuration?



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FYI - Jeff Tantsura will be judging the consensus for this adoption call.

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