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Re: [mpls] Request for comments on draft-malis-mpls-sfc-encapsulation-00.txt

Alexander Vainshtein <Alexander.Vainshtein@ecitele.com> Sun, 24 June 2018 15:29 UTC

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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: "Andrew G. Malis" <agmalis@gmail.com>
CC: "mpls@ietf.org" <mpls@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>
Thread-Topic: [mpls] Request for comments on draft-malis-mpls-sfc-encapsulation-00.txt
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Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/uWB_jGlNhea3D8ii6VTzxba3Idg>
Subject: Re: [mpls] Request for comments on draft-malis-mpls-sfc-encapsulation-00.txt
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Andy and all,
I’ve read the draft and I have a question regarding position of the SFF label in the label stack.
The draft states the SFF label is located at the bottom of the stack and immediately followed by the NSH header.

I wonder if it is possible to have some special purpose labels to follow the SFF label. The relevant example could be GAL (RFC 5586) followed by the GACH for OAM purposes.
RFC 7708 has allowed this for PW labels which originally also have been defined as BoS only

Regards, and lots of thanks in advance,
Sasha

Office: +972-39266302
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Email:   Alexander.Vainshtein@ecitele.com

From: mpls [mailto:mpls-bounces@ietf.org] On Behalf Of Andrew G. Malis
Sent: Tuesday, June 19, 2018 6:14 PM
To: mpls@ietf.org; sfc@ietf.org
Subject: [mpls] Request for comments on draft-malis-mpls-sfc-encapsulation-00.txt

I’ve just uploaded https://tools.ietf.org/html/draft-malis-mpls-sfc-encapsulation-00 . It’s a short draft that discusses how to carry SFC packets that include the NSH over MPLS from one SFF to the next, so that SFFs that support the NSH can be connected via MPLS. It also includes the ability for MPLS nodes to support more than one SFF. Comments are appreciated!

Thanks,
Andy


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