Info on Google’s proposal to the City of Mountain View to put in a WiFi network is publically available (490K PDF).
There are some interesting things:
It will be using mesh technology. There will be about 400 mesh nodes, and 3 uplinks to the Internet (which Google says will use fiber, as though the media really matters). The system will use a captive portal, requiring you to log in. The username and password will be a Google account (i.e. the same one as Gtalk, Gmail, customized homepage, etc.) The tinfoil-hat crowd will point out that this will allow Google to snoop all your packets and associate them will all of your e-mail and your chat logs. The installs will be on city-owned light poles. Parts of Mountain View will not get service immediately because their light poles are owned by PGE and Google and the city have to negotiate with PGE more. Don’t hold your breath on this, folks. PGE’s probably got some powerline Internet thing it wants to do instead. The equipment taps power to the light poles, and as such is unmetered. Google will pay $36 per pole per year for power. That’s $0.0041 per hour. If electricity costs the city 4 cents per kilowatt hour, that means the devices use 100 watts of power. Seems like a fair price. There is no mention of solar power or battery backup, which means that this system will be useless for disaster response. Also, because the equipment taps the utility power for the lights, it will not be possible to use generator power to fix some portion of the mesh. Finally, if street light circuits were de-prioritized for repair by the power company during an emergency (as seems likely), the Google wifi mesh would come back slower than other networking technologies. There is talk of running a VLAN over the network in the future for city services use. It is not going to be in 1.0. The security aspects of having city services data running over a wireless mesh would need to be thought about. I’m not saying it’s a bad idea, but it’s a sizable liability for Google to take on. There are grainy, useless pictures of the proposed hardware. No surprise, it looks like commodity stuff. Google’s value-add will be in software. There is no discussion of how the boxes will get installed. I suspect Google will contract that job out to someone with a fleet of boom trucks. Perhaps they will have Peek do it, who you see around town fixing traffic lights. This project is significant for more than the normal “Telcos Battle Municipal Wifi” reason. This is going to be a real mesh network. Mesh networking is one of those urban legends among networking people. Everyone says that they are nifty, but no one has ever seen one work. Perhaps Google will nail this like they have so many other things.
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