Subject: [Idr] Deprecating path attributes DPA, ADVERTISER and RCID_PATH / CLUSTER_ID

From: John Scudder <[email-masked]>
Date: Thu, 8 Nov 2012 16:05:52 -0500

Folks,

We noticed that the IANA BGP Path Attributes registry still lists DPA (attribute 11), ADVERTISER (attribute 12) and RCID_PATH / CLUSTER_ID (attribute 13). Considering none of these are, or ever have been, in use, good registry hygiene suggests marking them as "deprecated", which basically means "don't use this. At some point in the future we might re-use it for something else."

There would be no immediate consequences of doing this, other than the registry would get updated to be more accurate. If at some point in the future we run out of space in the registry (perish the thought) having deprecated these code points would allow us to reuse them.

If anyone has any objections, please raise them, otherwise I'll plan to submit a tiny Internet Draft requesting IANA to make the change. (Per Michelle @ IANA, this is the procedure to get it done.) 

Thanks,

--John