No subject

links is just the standard wired ethernet routing with a 
default gw. In 802.11s, nodes (or leaf computers) have a 
view of the network much like that of a wired router running 
an internet routing protocol - no default gw and a large 
routing table.

There's a couple of differences between wired internet 
routing and 802.11s

o all hops aren't equal - there is reliability factor 
(weighting) for each hop

o packets arrive and leave via the same interface.

o routing is proactive - the nodes are looking for and 
updating routes continually even if there is no traffic 
asking for those routes. This means each node has to hold a 
table of all the routes and a large amount of traffic is 
involved in updating the routes. A wired network is 
reactive, nodes don't search for a route till traffic 
arrives for that route. How discovery works and updates are 
propagated in 802.11s I didn't discover - ie what is the 
equivalent of icmp. At least one 802.11s protocol uses UDP 
packets to a low port for some part of this. The large 
amount of traffic for route updates means that nodes that 
are asleep most of the time (eg sensors which wake up once 
an hour to send a reading) can't be 802.11s. I'm not sure 
how a non-s leaf node fits in (joins, leaves) to a 802.11s 
network.

Joe
-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
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