[Idr] draft-minto-idr-bgp-autodiscovery

[Robert Raszuk <[e-mail]>]

Dear WG,

I have noticed this draft appeared on today's IDR WG meeting agenda if
time permits.

I would like to highlight that the core transport idea of
autodiscovery using 1 hop LAN multicast with UDP has been proposed a few
years back - except with much simpler messages.

Quote from:
https://www.ietf.org/archive/id/draft-raszuk-idr-bgp-auto-session-setup-01.txt


3.  Proposed Solution

   When BGP attempts to establish the EBGP sessions with unknown peers
   router will start sending BGP Session Explorer (BSE) packets which
   are to be regular BGP session establishment packets containing plain
   BGP OPEN Message except instead of regular peer address a multicast
   address will be used 224.0.0.2 "All Routers on this Subnet" as UDP
   destination address.  Destination port of this UDP packets is to be
   assigned by IANA.  Source address will be selected by the operator
   either local interface address (when establishing plain p2p relation)
   or loopback address (when establishing peering between loopback
   addresses).

   Authors leave this as open discussion point to use instead of well
   known multicast address of 224.0.0.2 a new IANA assigned multicast
   address dedicated for the purpose of BGP Auto Session Setup.


I contacted the authors offline a few weeks back and extended the
invitation to work together, but received no response.

While I completely agree that IETF can build proposals based on the
previous work I find it a bit odd that even no reference to previous
work can be found in the current version of subject draft.


Thx,

R.