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Re: [bess] SRv6 / (SR)MPLS co-existence for bess

"Ketan Talaulikar (ketant)" <ketant@cisco.com> Tue, 18 May 2021 12:13 UTC

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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: Eduard Metz <etmetz@gmail.com>, "bess@ietf.org" <bess@ietf.org>
CC: "draft-agrawal-spring-srv6-mpls-interworking@ietf.org" <draft-agrawal-spring-srv6-mpls-interworking@ietf.org>
Thread-Topic: [bess] SRv6 / (SR)MPLS co-existence for bess
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Date: Tue, 18 May 2021 12:13:02 +0000
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Subject: Re: [bess] SRv6 / (SR)MPLS co-existence for bess
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Hi Eduard,

I do believe that BGP ADD-PATH mechanism can be leveraged for co-existence. There are also other design approaches to achieve the same.

I am copying the authors of https://datatracker.ietf.org/doc/draft-agrawal-spring-srv6-mpls-interworking/ who were working to document these approaches.

Thanks,
Ketan

From: BESS <bess-bounces@ietf.org> On Behalf Of Eduard Metz
Sent: 17 May 2021 13:46
To: bess@ietf.org
Subject: [bess] SRv6 / (SR)MPLS co-existence for bess

Hello,

Co-existence of multiple dataplane technologies to carry BESS services is useful for among others migration of one dataplane technology to another (e.g. (SR)MPLS to SRv6).

Can co-existence be achieved without changing current specifications, or would it require extensions / changes? For example as proposed in draft-ls-bess-srv6-mpls-coexisting-vpn.

I was thinking maybe the BGP ADD-PATH capability could be leveraged to achieve co-existence.

Would it be of interest to document co-existence cases and solutions?

Thanks!

cheers,
  Eduard

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