[Idr] draft-snijders-idr-rfc8203bis

[Job Snijders <[e-mail]>]

Dear IDR,

So, it appears I was wrong to push for the arbitrary maximum length of
128 octets when we worked on the BGP Administrative Shutdown
Communication (RFC 8203). At the time, multiple people pointed out that
it might be better to let the the thing be a little bit longer (255),
and in retrospect that indeed would've been better. I'm sorry :(

At this month's peering forum meeting of the Moscow Internet Exchange,
Misha Grishin (MSK-IX) reported on experiences with the shutdown
communication, and indicated that the concept was considered useful, but
that 128 octets is too small in context of multibyte character sets such
as Cyrillic script and they couldn't easily fit the short messages they
wanted to send in the communication. The GoBGP authors also questioned
the 128 limit during the implementation phase, I now see why.
Operational feedback like this is invaluable and worth our
consideration.

I think that allowing all possible values in the shutdown communication
length field will allow more societies to use the shutdown communication
feature in their native script, and this outweights the additional risk
of visual spoofing that an additional 127 octets could bring. I think
it won't be too hard to update the existing implementations.

We've posted a short draft to update use of the length field in rfc8203.

Thoughts?

Kind regards,

Job

----- Forwarded message from [e-mail] -----

Date: Fri, 08 Dec 2017 07:22:57 -0800
From: [e-mail]
To: Job Snijders <[e-mail]>, Alexander Azimov <[e-mail]>
Subject: New Version Notification for draft-snijders-idr-rfc8203bis-00.txt


A new version of I-D, draft-snijders-idr-rfc8203bis-00.txt
has been successfully submitted by Job Snijders and posted to the
IETF repository.

Name:		draft-snijders-idr-rfc8203bis
Revision:	00
Title:		Extended BGP Administrative Shutdown Communication
Document date:	2017-12-07
Group:		Individual Submission
Pages:		4
URL:            https://www.ietf.org/internet-drafts/draft-snijders-idr-rfc8203bis-00.txt
Status:         https://datatracker.ietf.org/doc/draft-snijders-idr-rfc8203bis/
Htmlized:       https://tools.ietf.org/html/draft-snijders-idr-rfc8203bis-00
Htmlized:       https://datatracker.ietf.org/doc/html/draft-snijders-idr-rfc8203bis-00


Abstract:
   This document updates RFC8203 by defining an Extended BGP
   Administrative Shutdown Communication to improve communication using
   multibyte character sets.


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.

The IETF Secretariat


----- End forwarded message -----