Sunday, December 18, 2011

Cisco-Linksys PLEBR10 Powerline To Ethernet Bridge Review

Cisco-Linksys PLEBR10 Powerline To Ethernet Bridge
Average Reviews:

(More customer reviews)
As a networking "internals" guy, I was shocked to find that this product is fundamentally broken at the network layer.
What people are complaining about here is that the device suddenly stops working and must be unplugged and plugged back in again.
This is because the device is trying to be too smart, and is losing track of which power-line modules connect to which computers. Unfortunately, in doing so, it prevents the network-level broadcast facilities from working. The broadcast facility I'm talking about most (ARP, the address resolution protocol) would have automatically corrected the problem if the Linksys box wasn't so broken.
In essence, for all you tech guys and gals, is that a learning bridge should never "learn" the broadcast address.
If you have only PCs, and you load the Linksys driver, they do some magic to keep the devices from falling over dead... But if you mix in a non-pc (Linux, UNIX, Macintosh) using a hub off the end of your power-line device, you're guaranteed to be frustrated.
The symptoms are that some of the network works (whatever was working before the bridge tables got corrupted) and others stop working with no explanation. The box "selectively" forwards traffic, and becomes deaf to other traffic.
It's like being at a cocktail party, and having every third person not be able to hear you, and saying "Over here!" (as ARP does) doesn't help either.
Ugh. In my experience, this is somewhat typical of Linksys products... If you have a windows PC, you're fine. If you have anything else, they won't talk to you.
I switched to the Siemens power-line module, and it has been working just fine for me.

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The Linksys Instant PowerLine EtherFast10/100 Bridge offers a complete Internet connection solution for your home powerline network. The PowerLine Bridge makes sharing your broadband access easier than ever. Build a strong and simple-to-use home network by taking advantage of the most pervasive home networking mediumpowerlines.The PowerLine Bridge is ideal for users who already have a router. It can be plugged into an Ethernet port on a router to equip a network with powerline capabilities and take advantage of the routers features. The PowerLine Bridge can also plug directly into a cable or DSL modem to allow Internet access and data transfer rates up to 14Mbps over home powerlines.With the PowerLine Bridge, create a network in no time at all to share an Internet connection (a router may be required), files, and printers, or even play multi-user network games at blazingly fast speeds. Its easy, convenient, and cost-effective.

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