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Re: [bess] AD Review of draft-ietf-bess-evpn-vpws-07

John E Drake <jdrake@juniper.net> Tue, 21 February 2017 18:56 UTC

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From: John E Drake <jdrake@juniper.net>
To: Sami Boutros <sboutros@vmware.com>, "Alvaro Retana (aretana)" <aretana@cisco.com>, "draft-ietf-bess-evpn-vpws@ietf.org" <draft-ietf-bess-evpn-vpws@ietf.org>
Thread-Topic: AD Review of draft-ietf-bess-evpn-vpws-07
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Date: Tue, 21 Feb 2017 18:56:17 +0000
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Cc: "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>, "bess-chairs@ietf.org" <bess-chairs@ietf.org>, "bess@ietf.org" <bess@ietf.org>
Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-vpws-07
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Sami,

Snipped, comment inline

Yours Irrespectively,

John

> >
> >> Ethernet Tag ID 32-bit field MUST be set to the 24-bit VPWS service instance
> identifier value."
> >
> >
> >
> >Ok, but you still didn’t mention how the 24-bit value is to be aligned in the 32-
> bit field.  I’m guessing there will be some 0-padding, but will that the at the
> beginning or the end?
> >
> 
> I made the VPWS service instance identifier a 32-bit value in the new draft.
> 

[JD]   I don't think you can do this as there are multiple implementations that use 24 bits

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