[rbridge] Proposed details for announcing endnodes

[James Carlson]

Joe Touch writes:
> Steve Dalberg wrote:
> > As for the Layer 2 "pings" question, you'd be better off just looking
> > for traffic sourced by the MAC in question over a couple of second
> > period.  Not sure what you would want to do with that, but if you don't
> > see anything you can safely clear your forwarding table 
> 
> That works only for bidirectional traffic. Silent listeners that move 
> always cause problems - and, as I onted, we shouldn't propose to fix 
> that issue.

If it's a truly silent listener, then it won't really cause us any
problems.  Absent special tricks (such as 802.11 in AP mode), we won't
learn of its location by any means, and we thus will be forced to
flood all packets sent to that receiver.  No location-related problem
should occur.

If it's a listener that speaks once in a blue moon, then Steve's note
holds: we'll time out the entry, stop using it, and revert back to
flooding for an unknown destination.

-- 
James Carlson, Solaris Networking              <james.d.carlson at sun.com>
Sun Microsystems / 35 Network Drive        71.232W   Vox +1 781 442 2084
MS UBUR02-212 / Burlington MA 01803-2757   42.496N   Fax +1 781 442 1677