What should the throughput be

RouterOS Beginner Basics
1

Hi All,

I have a RB333 with 2 radios at my main site. 1 Radio has a flat pallen antenna pointing to a high site then through to the rest of my sites (6 sites)
The other radio is attached to a Yagi that connects directly to 2 sites. Both connections have good signal strength (-60 to -68) but bandwidth tests to these 2 sites is at best 2mbs (tcp, both ways). Distance between sites is about 200 meters. EOIP tunnels to both.


Its kinda like this

/---------Site1 (RB133 flat pannel)
RB333 YAGI /
_________Site 2 (RB133 Flat Pannel)

I feel I sould be getting much higher throughput??? I am very new to RouterOS and Wireless networking so please excuse me if there is a really obvious answer.

Thanks in advance
Mike

2

Is this a/b/g? Need more info on wireless configuration.

3

Yep, need more info. However, from what I’ve read, EoIP uses more CPU than WDS, so EoIP would be even slower on a 133.

Ack timing can cause this. Works fine, good signal, but under load it loses packets like mad.

4

133c
Band 2.4 only G
tx/rx Signal Strength -56/-57
noise floor signal to noise 44dB
tx/rx CCQ 83/96%
Overall tx CCQ 83%
Ack Timeout 56 us
Router OS 3.10

Im getting about 3-4 mbs between the 133c and the 333

5

Typical throughput is not the same as device bitrate. Now, 2-3mbits/sec on a G seems a bit slow, a typical throughput should be about 20Mbits/s on a 54MbitG router (Look it up in Wikipedia). How well the RB133 does, I can’t speculate.

Then one final factor is interference from other 2.4GHZ appliances/networks/phones, etc. Since you are relatively close together with some gain antennas, I would not expect that to be a factor, unless there is another 2.4G source in line with one of your antennas. Try rotating both 90 degrees and see if that improves the throughput. Considering you are showing 2 sets of radio links, I suspect they are interacting with each other (guessing on your diagram and description). 2 identical radios linking to different sites, both using 802.11G, at the same site is asking for interference problems. Each radio is flooding the receiver of the other when there is traffic.

I know that is not much help specifically, but I thought I’d throw that into the discussion.