[Mikrotik] nstreme dual

ccrum ccrum at dot11net.com
Mon Oct 27 12:40:15 CDT 2008


UDP...TCP is about 20-22 Mbps.

Cameron

Robert Andrews wrote:
> Is that tcp or udp?
>
> Robert
>
> ccrum wrote:
>   
>> Simple answer is no. 25 dB is pretty damn good...most dual pol feeds are 
>> good to get between 15 and 20 dB isolation, but I'd be willing to bet 
>> that you'd ever really see that on the same antenna with the same 
>> frequency if you put it on a spectrum analyzer and checked it. I've done 
>> a lot of dual-nstreme links and I find that you need at least 100 MHz 
>> channel separation for optimum performance on a high quality dual pol 
>> dish. Using this, I'm typically able to get between 25-30Mbps FDX on 
>> RB532's and a little better on 433's or 600's.
>>
>> Cameron
>>
>> Aaron, Network Administrator, Great Lakes Internet wrote:
>>   
>>     
>>> Is there enough separation between the two polarities to run both on the
>>> same frequency?
>>>
>>> I'm looking to replace a 10mbps orthogon with a higher capacity link
>>> without having to pay to price for a license upgrade on the orthogon.
>>> I'd like to not use any more of the band than I am already using.
>>>
>>> ---
>>>
>>> Aaron, MCP, Network+, A+
>>> Network Administrator
>>> support9 at greatlakes.net
>>>  
>>> Great Lakes Internet, Inc
>>> 112 N. Howard
>>> Croswell, MI 48422
>>>  
>>> (810) 679-3395
>>> MI Toll-Free (877) 558-8324
>>>
>>>
>>> -----Original Message-----
>>> From: mikrotik-bounces at mail.butchevans.com
>>> [mailto:mikrotik-bounces at mail.butchevans.com] On Behalf Of Josh Luthman
>>> Sent: Wednesday, October 22, 2008 9:06 PM
>>> To: Mikrotik discussions
>>> Subject: Re: [Mikrotik] nstreme dual
>>>
>>> Both of my links are using dual polarity dishes.  Horizontal and
>>> Vertical on
>>> one big fat happy antenna =)
>>>
>>> If you're just trying to figure out which to use I highly advise OSPF.
>>> If
>>> you're #1 concern is bandwidth (and you're forced to MikroTik) then go
>>> dual
>>> nstreme.
>>>
>>> Josh Luthman
>>> Office: 937-552-2340
>>> Direct: 937-552-2343
>>> 1100 Wayne St
>>> Suite 1337
>>> Troy, OH 45373
>>>
>>> Those who don't understand UNIX are condemned to reinvent it, poorly.
>>> --- Henry Spencer
>>>
>>>
>>> On Wed, Oct 22, 2008 at 8:09 PM, Keith Barber <keith at reliablevi.com>
>>> wrote:
>>>
>>>   
>>>     
>>>       
>>>> I never thought about using two wds links on the same dish.
>>>> I wonder how much you would gain in this configuration over dual
>>>>     
>>>>       
>>>>         
>>> nstreme?
>>>   
>>>     
>>>       
>>>> As the nstreme requires quite a bit of horsepower once you start
>>>>     
>>>>       
>>>>         
>>> pushing a
>>>   
>>>     
>>>       
>>>> lot of traffic through the link.
>>>>
>>>> -Keith-
>>>>
>>>> ----- Original Message -----
>>>> From: Kevin Neal <kevin at safelink.net>
>>>> Sent: Wed, 10/22/2008 6:58pm
>>>> To: 'Mikrotik discussions' <mikrotik at mail.butchevans.com>
>>>> Subject: Re: [Mikrotik] nstreme dual
>>>>
>>>> Two separate boards.  Right now we have an x86 Mikrotik router on both
>>>> ends,
>>>> one of the links is using RB532's and the other is actually a Redline.
>>>>  This
>>>> is a 24 mile link and we are needing more capacity.  At the moment
>>>>     
>>>>       
>>>>         
>>> with the
>>>   
>>>     
>>>       
>>>> limited tower space we're going to be installing some dual polarity
>>>> feedhorns in the PacWireless 2' antennas and then having three links
>>>> between
>>>> the sites.
>>>>
>>>> -Kevin Neal
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: mikrotik-bounces at mail.butchevans.com
>>>> [mailto:mikrotik-bounces at mail.butchevans.com] On Behalf Of Randy Cosby
>>>> Sent: Wednesday, October 22, 2008 4:36 PM
>>>> To: Mikrotik discussions
>>>> Subject: Re: [Mikrotik] nstreme dual
>>>>
>>>> All on one board, or using two separate boards?
>>>>
>>>> Kevin Neal wrote:
>>>>     
>>>>       
>>>>         
>>>>> We've been using equal cost OSPF routes, there's no redundancy with
>>>>> Nstreme Dual.
>>>>>
>>>>> -Kevin Neal
>>>>>
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>> From: mikrotik-bounces at mail.butchevans.com
>>>>> [mailto:mikrotik-bounces at mail.butchevans.com] On Behalf Of Randy
>>>>>       
>>>>>         
>>>>>           
>>> Cosby
>>>   
>>>     
>>>       
>>>>> Sent: Wednesday, October 22, 2008 4:29 PM
>>>>> To: MikroTik at mail.butchevans.com
>>>>> Subject: [Mikrotik] nstreme dual
>>>>>
>>>>> Anyone using this successfully in 5.x frequencies?  What boards,
>>>>> cards, antennas, etc?
>>>>>
>>>>>
>>>>>
>>>>>       
>>>>>         
>>>>>           
>>>> --
>>>> Randy Cosby
>>>> Vice President
>>>> InfoWest, Inc
>>>>
>>>> office: 435-773-6071
>>>>
>>>>
>>>> _______________________________________________
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>>>>     
>>>>       
>>>>         
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>>>       
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>>     
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