NV2 Latency vs. Airmax latency

NV2, just 2 hops, r52nM cards, mmcx, rb951, 2km, same enviroment like ubnt…
http://i41.tinypic.com/2vayyh3.jpg

5 hops in same enviroment on ubnt airmax:
http://i42.tinypic.com/i2rigl.jpg


Can you do mikrotik something to solve the biggest problem of nv2? - latency,…that is the reason it cant be used on backhauls…

i really agree on this with you
mikrotik should really work on the latency issue for use to be able to use VN2 in back haul

If you can, try the new wireless-fp package on RouterOS 6.15

It solved my latency problems! :smiley:

NV2 had bigger latency than Airmax, but not as bad as your picture shows.
And with wireless-fp package in v6.15 the latency is very good, but you need to upgrade and enable this package on both sides and also select auto TDMA Period Size.

In some case, with no traffic, i saw something similar to picture showed by rado3105, but not using wireless-fp. With it the latency is low and very stable.

CyberTod, did you try wireless-fp also on Ptmp?

I have only PtP links, ranging from 1km to 31km. No observation on PtMP.

So you have under one ms per hop on your airmax links? Sure your measuring the right thing?

Yes this is lattency on airmax, if there is more hops it is not eqaul to count all separate latency togethere…it is lower…
in one ptp link using nv2 I have average latency 8-12ms…bud after 5 hops I dont have latency 60ms…(5x12)

Yes I noticed that if there is traffic going through link latency is much lower…

I am affrait to try wireless-fp packed now

This is due to the fact that small packets are packed together to send them at once
if there is not enough traffic small ping packets have to wait.

Did you know that in RouterOS v6.15 nv2 latency has been improved dramatically. Read more here:
http://download2.mikrotik.com/news/mikrotik-news-59-JUN2014.pdf

So please upgrade and enable Wireless-FP package to see the difference

I can’t find this option…

I upgraded and used wireless-fp package with auto tdma option. The latency drop down from 6ms to 2ms…so this is great and comparable to ubnt devices.
But problem is throughoutput which drops down during busy hours(from 17:00 to 22:00) from 47mbit/s(one polarized antenna, 802.11N) to 9mbit/s…and not stable…

Do you have interferences in that area?