Need to create a 2-4 km Point to Multipoint Bridge connections

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Jan 26th, 2010
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I have attached a drawing with shows exacly what i want to do and the distances in each side. If i want to go 802.11n is aironet 1500 the only one that can cover those areas or is there another solution. If not, i will go 1300 and traditional b/g. Seccond question, do i need 4 ap's and 4 directional antenas or is there another solution. And last what antenas and what ap's should i choose for what i have in mind. Thanks in advance

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gamccall Wed, 01/27/2010 - 06:05
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"If i want to go 802.11n is aironet 1500 the only one that can cover those areas or is there another solution. If not, i will go 1300 and traditional b/g."


I don't believe Cisco has released any 802.11n bridging hardware. The 1250 has commands to set a bridge mode but this is not recommended or supported by Cisco. For the time being your options are the 1300 (g) or the 1400 (a).


"Seccond question, do i need 4 ap's and 4 directional antenas or is there another solution."


Based on your diagram, you need 5 APs, 4 directional, and one omni.


"And last what antenas and what ap's should i choose for what i have in mind."


My recommendation would usually be to use 1400s rather than 1300s, simply because you're much less likely to encounter contention/noise in the 5GHz space. If you want to use the 1300s for cost reasons, definitely do a careful survey.

Peter Nugent Wed, 01/27/2010 - 11:03
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The 1250 is now supported for bridging, originally it wasn't and I can show you two documents where one says yes the other says no.


I am not sure what restrictions there are as its a while since I looked at this. Most people who set it up before it was approved for bridging were successful.


This says yes

http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps6973/ps8382/prod_qas0900aecd806b7c82_ns767_Networking_Solutions_Q_and_A.html


This says No


http://www.cisco.com/en/US/docs/wireless/access_point/1250/installation/guide/125h_c1.html


I assume the second doc is just older.

Leo Laohoo Wed, 01/27/2010 - 13:37
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I can assure you that Point-To-Point Bridge is supported on the 1250 is you are using 12.4(21a)JA1.  I have it setup here right now.  Unfortunately I had to raise a TAC request because the Cisco documentation (Document ID #68087) is incorrect.

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