Re: [mpls] WG last call: draft-ietf-mpls-gach-adv and draft-ietf-mpls-tp-ethernet-addressing

Francesco Fondelli <francesco.fondelli@gmail.com> Tue, 27 November 2012 17:35 UTC

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Date: Tue, 27 Nov 2012 18:35:45 +0100
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From: Francesco Fondelli <francesco.fondelli@gmail.com>
To: stbryant@cisco.com
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Cc: "mpls@ietf.org" <mpls@ietf.org>, MPLS-TP ad hoc team <ahmpls-tp@lists.itu.int>, draft-ietf-mpls-tp-ethernet-addressing.all@tools.ietf.org, "mpls-ads@tools.ietf.org" <mpls-ads@tools.ietf.org>, draft-ietf-mpls-gach-adv.all@tools.ietf.org
Subject: Re: [mpls] WG last call: draft-ietf-mpls-gach-adv and draft-ietf-mpls-tp-ethernet-addressing
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On Mon, Nov 26, 2012 at 11:54 AM, Stewart Bryant <stbryant@cisco.com> wrote:
> Francesco

Hi Stewart,

[cut]

> I think that this already covers your concern, since a m/c address
> does not pass the MUST test above.

Ahh yes, OK.  I misinterpreted that text.  I think I did read it
as "do not send" instead of "do not use" which I guess implies both
sending and receiving (my comment was about defensive dropping at RX).

thank you
ciao
fra

On Mon, Nov 26, 2012 at 11:54 AM, Stewart Bryant <stbryant@cisco.com> wrote:
> Francesco
>
> I just found this email when doing a trawl of emails related to this draft.
>
> The draft  says:
>
> When a multipoint Ethernet link -- that is, a link which is not known
> to be point-to-point -- serves as a section for a point-to-point
> MPLS-TP LSP, unicast destination MAC addresses MUST be used for
> Ethernet frames carrying packets of the LSP.
>
> I think that this already covers your concern, since a m/c address
> does not pass the MUST test above.
>
> Stewart
>
> On 16/07/2012 13:23, Francesco Fondelli wrote:
>
> Hi,
>
> I have a comment.
>
> If a box received a frame with dest MAC addr 01-00-5E-90-00-00
> on a link that is known *not* to be p2p (or its nature/usage
> is unknown) I'd discard it.
>
> If we agree this is a sensible behavior I think it SHOULD be explicitly
> stated in draft tp-ethernet-addressing.  I think the Security
> Considerations section is a good place (actually it only provides
> suggestions to operators).
>
> thank you
> ciao
> ff
>
> On Sun, Jul 15, 2012 at 2:31 PM, Loa Andersson <loa@pi.nu> wrote:
>
> All,
>
> I managed to mistype some of the mail-aliases, please use this mail
> to respond.
>
> /Loa
>
> On 2012-07-15 12:01, Loa Andersson wrote:
>
> Working Group,
>
> this is to start a working group last call on
>
> draft-ietf-mpls-gach-adv-02
> and
> draft-ietf-mpls-tp-ethernet-addressing-01
>
> Please send your comments to the mpls working group mailing list
> (mpls@ietf.org).
>
> Normally this working group last call would last for two weeks, but
> since we are going in the the cut-off period prior to the Vancouver
> meeting, this wg last call ends when the cut-off is lifted during
> the IETF week.
>
> /Loa
> (as wg co-chair)
>
> --
>
>
> Loa Andersson                         email: loa.andersson@ericsson.com
> Sr Strategy and Standards Manager            loa@pi.nu
> Ericsson Inc                          phone: +46 10 717 52 13
>                                              +46 767 72 92 13
>
>
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