Rôgêr wrote:

> rel wrote:
>> Hi there,
>>
>> a company has just setup a wireless connection for us. The setup is as following:
>>
>> The distance between objects is 1.5km, there is one building between the two buidlings that is 5 meters higher:
>>
>> Object "A" a "Redline AN-50", whitch operates on 5.4Ghz, 36Mb/s and setup as accesspoint.
>> Object "B1" a Redline (same device) but setup as a repeater.
>> Object "B2" a Cisco Aironet 350, 2.4Ghz. 11Mb/s setup as repeater.
>> Object "C" the same Aironet setup as AP.
>>
>> The ping results are good, 9ms peeks to 32ms. But when testing the speed by copying a large file from a fileserver, the download started at 30KB/s and then dropped to 8KB/s.
>> Avarages at 12KB/s
>>
>> Could there be a misconfiguration of the hardware, or what can
>> be the problem here. If someone can hint me, please.
>
> Those Redline products (really nice, by the way) are supposed to support
> up to 48Mbs sustained throughput. Somebody definitely screwed the pooch
> on that project. I can't imagine the reasoning of having a Cisco 802.11b
> (about 5-7 Mbs sustained) in the chain. If you're going to spend the
> money for two Redlines, you lose the benefit by using a Cisco in the
> chain. You could contact Redline directly for assistance, but I think
> the company that did this for you has some 'splainin to do. As for
> what's actually wrong, do you know the link quality and signal strength
> for these links? Is there a lot of RF noise in your area?
>
> Setting a single device up as a repeater halves the throughput. But the
> Redline is so much faster than the Cisco, you only have to think about
> the Cisco. It's data rate may be getting cut in half. Unless you mean
> that the Redline and Cisco are piggy-backed on the building in the
> middle and work together as a repeater, in that case, they're not cut in
> half but have full bandwidth.

Hi Roger,

The company says it should work ok, they left when they pinged the
connection an saw it was oke. On monday I will get them back to find the
flaw. Just was thinking it was somthing on our network.

The connection is urgent and has been setup in 3 days.
There is no much noise I guess because its an area with just some
company's that don;t use RF AFAIK.

I suspect its the connection from B1 to B2, this is connected with COAX
over a distance of 60 meters. As for the signal strenght, could I see
this in web management tool of the devices? I don't know much about RF
and because its a p2p connection there would't be a field?

The reason why they used cisco for the last end bit, was because (as
they say) they couldn't get another redline devices.

Could you tell me what settings I should check on the web management of
the devices to make sure they have been setup right?

thanks, rel.