Re: [Idr] I-D Action: draft-ietf-idr-shutdown-01.txt

Job Snijders <job@ntt.net> Wed, 30 November 2016 20:53 UTC

Return-Path: <job@ntt.net>
X-Original-To: idr@ietfa.amsl.com
Delivered-To: idr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CD708129ACC for <idr@ietfa.amsl.com>; Wed, 30 Nov 2016 12:53:01 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.831
X-Spam-Level:
X-Spam-Status: No, score=-4.831 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RP_MATCHES_RCVD=-2.896, SPF_SOFTFAIL=0.665] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3UTDLGNzYwYV for <idr@ietfa.amsl.com>; Wed, 30 Nov 2016 12:52:59 -0800 (PST)
Received: from mail3.mlpsca01.us.to.gin.ntt.net (mail3.mlpsca01.us.to.gin.ntt.net [IPv6:2001:418:3ff:3::22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B1340129BC0 for <idr@ietf.org>; Wed, 30 Nov 2016 12:49:07 -0800 (PST)
Received: by mail3.mlpsca01.us.to.gin.ntt.net with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.84_2) (envelope-from <job@ntt.net>) id 1cCBoP-000FA2-T5 (job@us.ntt.net); Wed, 30 Nov 2016 20:49:07 +0000
Date: Wed, 30 Nov 2016 21:49:03 +0100
From: Job Snijders <job@ntt.net>
To: idr@ietf.org
Message-ID: <20161130204903.GH10210@Vurt.local>
References: <148052490104.3081.2049626653192295584.idtracker@ietfa.amsl.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <148052490104.3081.2049626653192295584.idtracker@ietfa.amsl.com>
X-Clacks-Overhead: GNU Terry Pratchett
User-Agent: Mutt/1.7.1 (2016-10-04)
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/qFjZyGAbnlRfNmBpsivxcJW8rvk>
Subject: Re: [Idr] I-D Action: draft-ietf-idr-shutdown-01.txt
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Inter-Domain Routing <idr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/idr>, <mailto:idr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/idr/>
List-Post: <mailto:idr@ietf.org>
List-Help: <mailto:idr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/idr>, <mailto:idr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 30 Nov 2016 20:53:02 -0000

Hi all,

The significant change between -00 and -01 is the addition of the
"length" indicator as suggested by Bruno Decraene.

I manually created a PCAP file to show what the shutdown communication
looks like on the wire. This file can be used to test wireshark, tcpdump
and other packet analysers.

	http://instituut.net/~job/shutdown.pcap

This is the frame of interest:

Vurt:~ job$ tcpdump -XX -r shutdown.pcap -c 4,5 -v
reading from file shutdown.pcap, link-type EN10MB (Ethernet)
20:19:25.904210 IP (tos 0xc0, ttl 64, id 53942, offset 0, flags [DF], proto TCP (6), length 198)
    shutdown.meerval.net.45016 > kiera.meerval.net.bgp: Flags [P.], cksum 0x9754 (correct), seq 791846767:791846913, ack 3734170538, win 2048, options [nop,nop,TS val 1416108449 ecr 4177813403], length 146: BGP
    Notification Message (3), length: 146, Cease (6), subcode Administratively Shutdown (2)
    0x0000:  5254 0097 e0df 5254 0021 7f49 0800 45c0  RT....RT.!.I..E.
    0x0010:  00c6 d2b6 4000 4006 1c8b a5fe ff18 a5fe  ....@.@.........
    0x0020:  ff1a afd8 00b3 2f32 9f6f de92 ebaa 8018  ....../2.o......
    0x0030:  0800 9754 0000 0101 080a 5468 19a1 f904  ...T......Th....
    0x0040:  5f9b ffff ffff ffff ffff ffff ffff ffff  _...............
    0x0050:  ffff 0092 0306 027f 4e54 5420 7769 6c6c  ........NTT.will
    0x0060:  2070 6572 666f 726d 206d 6169 6e74 656e  .perform.mainten
    0x0070:  616e 6365 206f 6e20 7468 6973 2072 6f75  ance.on.this.rou
    0x0080:  7465 722e 2054 6869 7320 6973 2074 7261  ter..This.is.tra
    0x0090:  636b 6564 2069 6e20 5449 434b 4554 2d31  cked.in.TICKET-1
    0x00a0:  2d32 3438 3234 3239 342e 2043 6f6e 7461  -24824294..Conta
    0x00b0:  6374 206e 6f63 406e 7474 2e6e 6574 2066  ct.noc@ntt.net.f
    0x00c0:  6f72 206d 6f72 6520 696e 666f 726d 6174  or.more.informat
    0x00d0:  696f 6e2e                                ion.

Kind regards,

Job

On Wed, Nov 30, 2016 at 08:55:01AM -0800, internet-drafts@ietf.org wrote:
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Inter-Domain Routing of the IETF.
> 
>         Title           : BGP Administrative Shutdown with Additional Communication 
>         Authors         : Job Snijders
>                           Jakob Heitz
>                           John Scudder
> 	Filename        : draft-ietf-idr-shutdown-01.txt
> 	Pages           : 6
> 	Date            : 2016-11-30
> 
> Abstract:
>    This document enhances the BGP Cease NOTIFICATION message
>    "Administrative Shutdown" subcode for operators to transmit a short
>    freeform message to describe why a BGP session was shutdown.
> 
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-idr-shutdown/
> 
> There's also a htmlized version available at:
> https://tools.ietf.org/html/draft-ietf-idr-shutdown-01
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-shutdown-01
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr