Re: [Idr] draft-jiang-idr-ts-flowspec-srv6-policy-07.txt - (8/17/2022 to 8/31/2022

Giuseppe Fioccola <giuseppe.fioccola@huawei.com> Wed, 31 August 2022 08:06 UTC

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From: Giuseppe Fioccola <giuseppe.fioccola@huawei.com>
To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: draft-jiang-idr-ts-flowspec-srv6-policy-07.txt - (8/17/2022 to 8/31/2022
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Date: Wed, 31 Aug 2022 08:06:01 +0000
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Subject: Re: [Idr] draft-jiang-idr-ts-flowspec-srv6-policy-07.txt - (8/17/2022 to 8/31/2022
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Hi All,
I support the adoption of this draft.
In particular, I agree to extend BGP FlowSpec (RFC8955 and RFC8956) to carry the C bit, as introduced in draft-ietf-idr-flowspec-redirect-ip.
And this feature can be used in addition to draft-ietf-idr-flowspec-path-redirect. Maybe this point can be mentioned in the draft.
I think that this FlowSpec application is helpful for the deployment of SRv6 networks.

Regards,

Giuseppe

From: Idr <idr-bounces@ietf.org> On Behalf Of Susan Hares
Sent: Wednesday, August 17, 2022 4:59 PM
To: idr@ietf.org
Subject: [Idr] draft-jiang-idr-ts-flowspec-srv6-policy-07.txt - (8/17/2022 to 8/31/2022

This begins a 2 week WG adoption call for draft-jiang-idr-ts-flowspec-srv6-policy-07.txt
https://datatracker.ietf.org/doc/draft-jiang-idr-ts-flowspec-srv6-policy/

During your discussion of this draft, please consider:

1) Do you agree with extending 8955 and 8956 to carry the
action bit [C] found for IPv4 and IPv6 found
draft-ietf-idr-flowspec-redirect-ip-02.txt

Figure 1 : Local Administrator

0                   1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|          Reserved           |C|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

C = 0 - redirect original flow
C = 1 - redirect copy of original flow

This bit augments the Redirect to IP action in RFC8955
And RFC8956.

2) Do you agree with this document use of this feature
in addition to  draft-ietf-idr-flowspec-path-redirect
https://datatracker.ietf.org/doc/draft-ietf-idr-flowspec-path-redirect/

See the following thread for a discussion of this in March:
 https://mailarchive.ietf.org/arch/msg/idr/HENTMEoiMJGmcMuVz7LTYclCSdw/

3) Will this work help deployment of SRv6 networks?

We'll discuss this draft at the IDR interim on 8/29/2022.

Cheerily, Susan Hares