[WLANware] Selling the idea of OLSR

[bastian@bittorf.de]

> Friday on OLSR.  We currently use OSPF and a traditional routed network
> where each node has multiple radios, each with a separate /28 subnet. 

Isnt this a lot of work to integrate a new node?
How do you test the hole network if somebody gets new in?
Dont underestimate the radios. wireless get sometimes
ugly ways... (never expectet connections)

> * Mesh networks are not scalable - they cause too much CPU load on small
> routers.

Thats not the hole truth. If you have 200 or 300hundred routers in one
OLSR-network and there a more people - simply connect 2 OLSR-networks
and make HNA4-announcements on each border: so you have two interconnected
clouds with 300 routers each.

> * Omni antennas pick up too much RF noise for usable links

right. you can build networks with directional-antennas
AND use OLSR. it has nothing to do with your routing protocol.

> * Omni-to-Omni links have limited range and the population density in
> Melbourne is not sufficient for a critical mass to form a useful mesh

ok - so dont think about a growing mesh with more then 300hundred
routers. maybe OLSR can be chance to lower the entry barrier.
(less technical knowledge is needed) 

> * A network where everyone is using a /16 netmask will be like a giant LAN
> and everyone will be swamped with everyone else's broadcast traffic

no. every router has its own LAN-subnet. Broadcasts are not possible.
only the radio-cards are in one subnet. but only a few OLSR-Pakets are
broadcasts. real data links (internet is for porn...) are routet, not
broadcasted. simply check an OLSR-routing table and you know what I mean.

> * Using OLSR on every node is like trying to create a city-wide network
> with
> WDS

no. check above. WDS ist totally ill. WDS is broadcast.
WDS has no useable ability to check neighbour links. OLSR has.

> claims.  If so, I'd love to hear from you!

good luck in melbourne. bye,Bastian.
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