Subject: Re: [Isis-wg] Comments on draft-ietf-isis-layer2-10.txt

From: Ayan Banerjee <[email-masked]>
Date: Wed, 09 Feb 2011 11:49:31 -0800

Mike,

I have addressed your nits and posted hopefully the final version.

Thanks,
Ayan

On 1/27/11 3:40 AM, "mike shand" <[email-masked]> wrote:

> 
>   Just a couple of nits.
> 
> 1.  Overview
> 
> para 2
> 
> In this document we specify a set of TLVs to
>     be added to [IS-IS] level 1 PDUs,
> 
> Not sure it should say "level1 PDUs" since MT-PORT-CAP can be carried in
> a pt-pt-hello (can it?) which is neither L1 nor L2.
> Also, it is possible in future there may be a requirement to carry these
> TLVs in L2 LSPs?
> 
> Specifying level 1 at this point doesn't really add anything anyway.
> 
> 2.1.  Multi Topology aware Port Capability TLV
> last para
> 
> 
>     The MT-PORT-CAP TLV may occur multiple times, and is carried only
>     within a IS-IS Hello (IIH) PDU.
> 
> 
> I may be confused about this, but I THINK this can be carried  in a
> TRILL Hello. The TRILL-IS-IS spec is not crystal clear as to when it is
> talking about IIHs in general or TRILL IIHs in particular. Nevertheless,
> the word "only" here perhaps implies some restriction to non-TRILL IIHs,
> which I don't think is intended.
> 
>      Mike
> 
> 
> 
> 
> 
> On 27/01/2011 08:45, [email-masked] wrote:
>> A New Internet-Draft is available from the on-line Internet-Drafts
>> directories.
>> This draft is a work item of the IS-IS for IP Internets Working Group of the
>> IETF.
>> 
>> 
>> Title           : Extensions to IS-IS for Layer-2 Systems
>> Author(s)       : A. Banerjee, D. Ward
>> Filename        : draft-ietf-isis-layer2-10.txt
>> Pages           : 11
>> Date            : 2011-01-27
>> 
>> This document specifies the Intermediate System to Intermediate
>> System (IS-IS) extensions necessary to support link state routing for
>> any protocols running directly over Layer-2.  While supporting this
>> concept involves several pieces, this document only describes
>> extensions to IS-IS.  Furthermore, the Type, Length, Value pairs
>> (TLVs) described in this document are generic Layer-2 additions and
>> specific ones as needed are defined in the IS-IS technology specific
>> extensions.  We leave it to the systems using these IS-IS extensions
>> to explain how the information carried in IS-IS is used.
>> 
>> A URL for this Internet-Draft is:
>> http://www.ietf.org/internet-drafts/draft-ietf-isis-layer2-10.txt
>> 
>> Internet-Drafts are also available by anonymous FTP at:
>> ftp://ftp.ietf.org/internet-drafts/
>> 
>> Below is the data which will enable a MIME compliant mail reader
>> implementation to automatically retrieve the ASCII version of the
>> Internet-Draft.
>> 
>> 
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