Re: Ethernet via existing phone wiring?

"Lucas Tam" <[EMAIL PROTECTED]> kirjoitti viestissä
news:[EMAIL PROTECTED]

> BTW, how reliable is HPNA when used in an apartment building?

Finnish experiance shows it is about 100% reliable.
The sad thing is that HomePNA 2.0 at 10Mbps will not work in a shared
environment because of cross-talk. All HomePNA MDU switches are HomePNA 1.1.

> Was there a reason you chose to go with 10Base-T instead of HPNA?

1) You could buy 24-port managed (MDU) Etherent switches on eBay at $12.50 a
piece. New HomePNA switces could cost almost $100 a port (now down to $35).
I want to provide FREE services to my neighborhood so I personally can not
afford to by all this expencive hardware.

Also, there is an other volunteer group in Finland pushing hard for HomePNA.
With business going so well they do not need my help.
See: http://www.homepna.fi/

2) Some of the newer buildings in my neighborhood have telephone wiring with
3 pairs per appartment. If not, there is the option of adding new cable.

3) The ultimate aim is to build a high speed Ehternet-based fiber-optic
"community network" based on an "open access" business model* to connect all
the LAN wired buildings. The faster 10Mbps connetion will produce a need for
higher bandwith to the house and thus a need for the fiber-optic
connections. HomePNA at 1Mbps can be served, yet poorly, by one or two ADSL
lines at a max 4Mbps / 512kbps. Going for HomePNA prolongs the reign of the
telco monopolies.

4) Nothing beats a RJ-45 jack in the wall. The click of a RJ-45 plug being
inserted is music to the ears!


The difference between Ethernet, HomePNA or WLAN is marginal. All are
Ethernet-based Layer 2 technologies. All three can co-exist in the same
access network, even side by side in the same house. The key is to segment
the network virtually by VLANs and not physically by routers.

(* Open Access means that we do not provide the Internet service. These
services are provided by competing ISPs for real money. Each ISP is
allocated one or more 802.1Q VLANs on the Etherent network. Customesrs of
one ISP would be configured into this VLAN. The customers would typically be
whole houses with their own NAT-router, but individual users can also be
configured to a VLAN.)


-- 
Petri Krohn
petri. krohn <[EMAIL PROTECTED]> iki. FI(nland)
_____________________________________________________________
Fiber-optic Community Networking: http://www.HelsinkiOpen.net