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Re: [Idr] [GROW] draft-snijders-idr-shutdown-00: Drop a line in the peer's syslog at shutdown

Job Snijders <job@ntt.net> Sat, 19 November 2016 16:58 UTC

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Date: Sat, 19 Nov 2016 17:58:14 +0100
From: Job Snijders <job@ntt.net>
To: Robert Raszuk <robert@raszuk.net>
Message-ID: <20161119165814.GE47336@dhcp-9d92.meeting.ietf.org>
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Subject: Re: [Idr] [GROW] draft-snijders-idr-shutdown-00: Drop a line in the peer's syslog at shutdown
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On Sat, Nov 19, 2016 at 05:07:50PM +0100, Robert Raszuk wrote:
> If you think this is too much then let's support new message type (for
> example Advisory) which will be able to be sent ahead of planned admin
> shutdown with all details necessary and be done.

"Shutdown" and "advisory"-style messaging are not mutually exclusive.
They do not overlap in terms of technology and usage. Shutdown is useful
for when the session goes down, 'advisory' can be useful when the
session is still up.

An advantage of the 'shutdown' message is that there is an absolute
correlation between the message contained in the Shutdown Communication
and the (in cisco-speak) "ROUTING-BGP-5-ADJCHANGE" event itself.

"Shutdown" fits neatly into the existing BGP framework and has a low
barrier to entry for implementors.

Regards,

Job

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