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babiwd
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Posts: 4
Joined: Sun Dec 05, 2010 4:51 pm

wireless bandwidth problem

Tue Dec 18, 2012 11:12 am

I have 3 point and link together with this hardware:
dish dual 28.5
RB435G
R52HN

bandwidth from A To C : 50M Tx&RX >>>>>>> Result:Link between A TO C is Ok
bandwidth from A To B :35M TX&RX >>>>>>> Result:Link between A TO B is Ok
bandwidth from Radio1 A To B Or C hase same result >>>>>>>Switch is ok
But

bandwidth from B TO C :RX>>35M Tx:200Kbps~1000Kbps

What is a my Problem??
Note:
this network work on OSPF
these point are a part of my network
wireless link work on NV2 wireless protocol
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Discus
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Posts: 36
Joined: Fri Nov 13, 2009 1:55 pm
Location: South Africa

Re: wireless bandwidth problem

Tue Dec 18, 2012 11:43 am

How are you testing throughput?

If you're using the built-in mikrotik bandwidth tests, note that you should not ideally be testing to and from routers/links you're interested in, but to things on the other side (i.e. you should have a bandwidth test server and client on "the other side" of A, B and C which you test to/from).
a      b      c
|      |      |
A------B------C
(A B C = your existing routers; abc = attached test devices).

Although you say you're using OSPF, you don't give any additional information, like what subnets are where etc.

Remember also that if the link gets very congested, a lot of packets are re-transmitted, and your "goodput" (rather than your throughput) drops off, sometimes precipitously.

Also note that TCP and UDP performance is often quite different.
 
babiwd
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Topic Author
Posts: 4
Joined: Sun Dec 05, 2010 4:51 pm

Re: wireless bandwidth problem

Tue Dec 18, 2012 5:04 pm

thank you Discus
exactly i used bandwidth test like your solution,in both protocol,tcp and udp has a same result
i thing my packe droped,but i don't why and where
Last edited by babiwd on Tue Dec 18, 2012 10:37 pm, edited 1 time in total.
 
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nickshore
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Re: wireless bandwidth problem

Tue Dec 18, 2012 5:11 pm

what channels are you using on the 2 links ?

how far apart are the antennas ?
Nick Shore MTCNA MTCWE MTCRE MTCINE MTCTCE
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