[123590] in North American Network Operators' Group
Re: Wireless Ethernet bridge
daemon@ATHENA.MIT.EDU (Joel Mulkey)
Thu Mar 11 13:13:28 2010
From: Joel Mulkey <joelm@freewirebroadband.com>
In-Reply-To: <ca274fce1003110850h76ceb7dby27fdb272b0c3745a@mail.gmail.com>
Date: Thu, 11 Mar 2010 10:10:55 -0800
To: Stefano Gridelli <sgridelli@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
We have used the 2.4GHz version of the Exalt radio - the EX-2.4i. We =
were fairly happy with it. The latency and jitter was great for a TDD =
radio, better than any I have seen. It was very reliable from a =
data-forwarding perspective. The management interface was nice when it =
worked, but the HTTP interface would lock up after extended periods of =
operation. We also got unusable values from some of the SNMP =
error/discard counters.=20
In the end we took it out due to the need for more bandwidth and some =
issues with intermittent interference (to be expected in 2.4GHz). If the =
specs meet your needs then it would probably be a good solution.
Joel Mulkey
CIO
Freewire Broadband
Direct: 503-616-2557 | Support: 503-614-8282
http://www.gofreewire.com
http://twitter.com/FreewireNetwork
On Mar 11, 2010, at 8:50 AM, Stefano Gridelli wrote:
> The motorola PTP 600 seems thus far the most valid solution. We want =
to
> remain on ISM bands, because we don't want to take the burden of =
renewing
> the license with FCC every x years ... we need something that once =
installed
> requires the least maintenance effort possible.
> We already have antennas and cables that work with the 5.8 GHz =
spectrum.
> There's a distance of 3 miles between the two antennas and there's LOS
> available.
> The copper handoff could be solved with a media converter ...
>=20
> I am also proposed an Exalt EX-5i at 200 Mbps. Does anybody have this
> hardware installed and can share any experience had?
>=20
> Thanks
>=20
> On Wed, Mar 10, 2010 at 5:31 PM, Scott Brown/Clack/ESD <
> SBrown@clackesd.k12.or.us> wrote:
>=20
>> The Dragonwave would be my first choice too, but they are not in the =
5.8GHz
>> band.
>>=20
>> The Motorola PTP-600 has a 2000 byte MTU, but doesn't do multimode =
handoff.
>>=20
>> What radio to get will come down to what you are willing to give up =
-- if
>> you are willing to drop the 5.8Ghz band and go with 11Ghz then the
>> Dragonwave is for you -- the new Horizon Quantum is amazing (and =
pretty
>> inexpensive when I priced it out)
>>=20
>> Bridgewave isn't bad either - you can get to 1.25Gbps with some fiber
>> handoff.
>>=20
>>=20
>> Scott
>>=20
>> Mike Lyon <mike.lyon@gmail.com> wrote on 03/10/2010 02:23:33 PM:
>>=20
>>> From: Mike Lyon <mike.lyon@gmail.com>
>>> To: Stefano Gridelli <sgridelli@gmail.com>
>>> Cc: nanog@nanog.org
>>> Date: 03/10/2010 02:23 PM
>>> Subject: Re: Wireless Ethernet bridge
>>>=20
>>> Check out DragonWave:
>>>=20
>>> http://www.dragonwaveinc.com/
>>>=20
>>> -Mike
>>>=20
>>>=20
>>>=20
>>> On Wed, Mar 10, 2010 at 2:18 PM, Stefano Gridelli
>> <sgridelli@gmail.com>wrote:
>>>=20
>>>> Hi All,
>>>>=20
>>>> I need a wireless bridge solution that allows to pass jumbo frames =
over
>> a
>>>> distance of 3 miles, using the 5.8 GHz band. The original solution =
was
>> a
>>>> Proxim Tsunami GX 200, but unfortunately it doesn't go beyond an =
MTU of
>>>> 1536
>>>> bytes: we need at least 1544 bytes, ideally between 4470 and 9212 =
bytes
>>>> MTU. The handoff should be MM fiber, the desired throughput 200 =
Mbps.
>>>>=20
>>>> Thanks,
>>>> Stefano
>>>>=20
>>=20
>>=20
>>=20
