[MLB-WIRELESS] GHO ----- UPDATE!

Dan Flett conhoolio at hotmail.com
Mon Jun 20 16:42:00 EST 2005


> -----Original Message-----
> From: owner-melbwireless at wireless.org.au [mailto:owner-
> melbwireless at wireless.org.au] On Behalf Of Ryan Abbenhuys


> Are you guys still not familiar with the term "backbone"?
> 
> After 4 or more people connect to any AP I guarantee you'll be better off
> using dialup modem links.

Ryan, what would you suggest for GHO?  Are three 2.4GHz interfaces - each on
a different channel serving a different area - not an improvement over a
single interface?  A 5.8GHz interface is also planned.  At the moment the
idea is to allow people to connect from wherever they can to do signal
strength and data rate testing.  We should also start experimenting with
network Quality-of-Service (QoS) applications and be measuring their
usefulness.

FYI, as of this writing:

GHO-North has two OSPF clients:
10.10.129.3 Node GWS - nice webpage and propagating 13 /28 subnets!
                     - also propagating 127.0.0.1.  Naughty!
10.10.129.4 Node IKD - no webpage and is propagating 192.168.20.0/24
                     - and 192.168.60.0/24 onto the network.  Naughty!
                     - nice work on the long link though. :)

GHO-South also has two OSPF clients:
10.10.130.178 Node GES - propagating 4 /28 subnet, a /30 and a nice
                         webpage
10.10.130.180 Node FKR - propagating 3 /28 subnets. (no webpage on the
                         router)

GHO-Mobile has one OSPF client:
10.10.131.70 - Node FUT - propagating 3 /28 subnets and a nice webpage

Running ARP on the GHO router reveals no other clients connected at all.

Of course, too many clients on any one AP will cause it to slow right down
with hidden-node problems - negating GHO's usefulness.  So I believe the
longer-term plan is to work out who are the best candidate nodes to retain a
permanent direct-link to GHO.  Once chosen, only they will be allowed
access.  I would hope that the method used to choose these nodes is fair and
open, and provides the best technical outcome for the overall network.
Perhaps some generally-agreed-upon official guidelines should be drawn up so
that everyone is clear on what is required to become a permanent client of
Node GHO.  If we don't I can see GHO becoming a source of discontent and
dissatisfaction once again.

At this point I'd say that the most likely nodes to be allowed to retain a
GHO connection are those who serve traffic to a cluster of Melbourne
Wireless nodes.  GHO is too important to allow permanent leaf-node access,
except maybe on the "GHO-Mobile" interface, or to providers of important
content to the network.

The point is important enough to be made again:
For technical reasons, GHO cannot offer open-slather access if it is to be
truly useful to the Melbourne Wireless network.  Just because you *can*
connect to it doesn't necessarily mean you *should* connect to it.  If you
can connect to a more local node, please do so.  If you can set up a
multi-radio routing node in your area, even better!

Cheers,

Dan

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