SVWUX Wireless Network Topology

Topology

The SVWUX 802.11b/g wireless network has several parts.

Hilltop Access Points ("Repeaters")

1. Phase one is comprised of a single 802.11g Linksys WRT54G router located on a hilltop above Los Gatos pointing towards San Jose and Campbell EOC's with about an 20 degree beamwidth. This router broadcasts an ESSID of svwux.org. The router does not provide DHCP information.
2. Another antenna will be added to the Los Gatos location soon (by Oct-08?) thus adding a second vector towards the Cupertino EOCs. Complementary nodes will hopefully be added at each of those EOCs as was done with SJC.
3. Our next goal is to establish a second hill-top router location, hopefully on the hills east of San Jose. This will give coverage over most of the east side of the valley.
4. SVWUX is interested in adding more high propagation sites that can link out from our center. If you control a suitable spot, we welcome your participation. Please contact us.

EOC Clients

1. The San Jose EOC has a complementary 22 dBi dish which completes the 16.7 km link with Los Gatos Hills. Along side it is also an omni-directional antenna to enable connection to the Santa Clara County EOC, a few blocks away, as well as to the San Jose Backup EOC which is across the parking lot.
2. Once our Los Gatos router is functional, we can begin demo and discussions with other citys' EOCs about connecting to our network.
3. Next in line is Cupertino once the second Los Gatos antenna is up.
4. Mountain View is very interested in linking, and has a representative in SVWUX planning to conduct experiments as soon as there is a link within view.

Internet Gateways

There are two wireless node types: client and gateway. A client is a node that does not have an independent Internet connection. A gateway is a node that has an independent Internet connection and wishes to share its bandwidth with other users connected to the SVWUX wireless network. (For more information about setting up a client or gateway, visit the "howto" pages for each.)

1. An internet gateway now exists connected wirelessly to the Los Gatos site. The connection has not been reliable though and needs more analysis. Signal appears to be adequate, but link is not being sustained.
2. One other important aspect of our network is that we will eventually use IPv6 throughout, though not exclusively. We will use IPv4 alongside IPv6, but our IPv4 address space is currently non-routable. Our IPv6 addresses are fully routable.

Current Network Layout