Welcome to the CSIR Meraka Institute's "COIN" Blog

Tuesday, July 13, 2004

Some more useful mesh info

Complete list of mesh protocols - Wiki site

Desciprion of protcols being used at CU wireless

To sustain the scalability of its infrastructure, Community
Wireless Network needs software that implements an uncomplicated,
extensible routing protocol that will support a network of
hundreds of nodes, and a routing path metric that "prefers"
reliable, high-capacity routes to spotty, low-capacity routes.

Based on a review of the wireless networking literature, BBN
Technologies' Hazy Sighted Link State (HSLS) routing algorithm
will support growth to thousands of nodes, which will more than
meet our requirements. HSLS also admits a parsimonious
implementation that will be far easier for a grassroots project
to debug and extend than more complicated algorithms whose
scalability is comparatively poor. The Expected Transmission
Count (ETX) path metric is a simple, proven routing path metric
that favors high-capacity, reliable links. The Community
Wireless Network will develop a UNIX routing daemon implementing
HSLS and ETX. The major functional units of the daemon are
described below.

CWN will leverage existing open source software whenever that
is possible. For example, the Zebra routing software suite
will provide our Routing Information Base (RIB) and kernel
abstraction. Because we will re-use Zebra, we will save tens
of hours of development and debugging, we will gain some
inter-operating system portability (*BSD, Linux, Solaris), and
we will have the capability to extend our HSLS daemon to share
routes with other routing protocols (BGP, OSPF, and RIP) in
the future.

More detailed description of HSLS

More detailed descrtiption of ETX


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