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Jrslick22
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Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 1:40 am

I have a RB333 with a point to point link to a RB133c i get -65dbm signal, 38db Sig to noise, link reports 36/36Mbps. When i do a bandwidth test on this and any of my other p2p links i can never seem to get over about 10-12Mbps tcp. other links include RB533 to RB333, RB533 to RB533s

Id love to get some of the speeds i read about in the forums. what other info do you want? what am i doing wrong?

thanks
 
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tjohnson
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 4:52 am

Hi,

How large of a channel are you using? 20mhz? 10mhz?

A rough breakdown with your hardware:
10mhz channel is going to provide about 15Mbps maximum (one direction at a time)
20mhz channel is going to provide about 28Mbps maximum (one direction at a time)

Also, are you using Nstreme? On point to point links it is always better to use Nstreme (in all the testing I have done with over 40 current links, up to 73 miles).
Travis
 
Jrslick22
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 5:50 am

Hi,

How large of a channel are you using? 20mhz? 10mhz?

A rough breakdown with your hardware:
10mhz channel is going to provide about 15Mbps maximum (one direction at a time)
20mhz channel is going to provide about 28Mbps maximum (one direction at a time)

Also, are you using Nstreme? On point to point links it is always better to use Nstreme (in all the testing I have done with over 40 current links, up to 73 miles).

Ok that makes a lot of sense, how do i make the channels 20mhz? i only see 5 and 10mhz, yes i'm using Nstream, will test it and let you know.
 
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tjohnson
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 6:24 am

The default "5ghz" setting is 20mhz wide... "5ghz-turbo" is 40mhz wide.

Travis
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Jrslick22
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 7:18 am

The default "5ghz" setting is 20mhz wide... "5ghz-turbo" is 40mhz wide.

Travis
In 5ghz i only have %ghz, 5ghz 10mhz, 5ghz 5mhz. its an R52h, would country code restrict this?

regards
 
Alex
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 8:44 am

for me pair of 133c with 2.9.50 have 2,2 MB/s real troughputpair of 532a have about 4 MB/s real troughput.it is simple wds bridges.
do you use nstream on 133c? it have slow cpu.for high speed ptp links you need:
1) power boards like 333 or 600 or PC router with fast cpu.
2) stable signal
3) well configured system
4)5-turbo if it is allowed in your country
Disable all you dont need, uninstall all unneeded packages.For example, on 133c I have installed only system, wireless and routerboard packages.
 
0ldman
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 8:57 am

If you just need a WDS p2p, the 411 has impressed me. At 5GHz turbo, I've gotten around 20mbps in one way, 17 and 12 in bandwidth tests both directions. I need time to test more thoroughly.
 
Alex
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 12:25 pm

i have tested 411 too as wds bridges.At table with ROS 3.3 i`ve got stable 3 MB/s (24 mbps) with 5Ghz and around 5 Mb/s(40 bmps) one way with nstreme enabled.
 
nowires
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 4:48 pm

i have tested 411 too as wds bridges.At table with ROS 3.3 i`ve got stable 3 MB/s (24 mbps) with 5Ghz and around 5 Mb/s(40 bmps) one way with nstreme enabled.
Good numbers :D

But are they with TCP or UDP? Can you try with both directions?
 
Alex
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Re: Breaking 10-12Mbps on point to point links

Tue Feb 26, 2008 10:26 pm

scenario of test was pc1--411~~~411-pc2.pc1 had freebsd+proftpd,pc2 was notebook with xp and total commander.
 
Jrslick22
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Re: Breaking 10-12Mbps on point to point links

Wed Feb 27, 2008 10:23 pm

i have tested 411 too as wds bridges.At table with ROS 3.3 i`ve got stable 3 MB/s (24 mbps) with 5Ghz and around 5 Mb/s(40 bmps) one way with nstreme enabled.
Good numbers :D

But are they with TCP or UDP? Can you try with both directions?
yep real nice numbers

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