Trango Atlas vs MT on RB532 and nstreme

RouterOS Wireless Networking
1

Can someone tell me why there is so interesting difference between these two solutions:
Both were tested on the same link with real traffic up to 16Mbit:

Trango Atlas:

  • excellent latency - up to 18ms
  • max p/s up to 2200 on graph
  • high packet lose ( on ethernet ports when high traffic, ping form radio to radio no packetlose )

MT on RB532 with nstreme and CM9 in 5GHz Turbo

  • bad latency - up to 50-100ms
  • max p/s over 3500 on graph
  • no packet lose

The MT is great but problem is the latency. Is it due to CPU utilization near 100% ?

2
  1. I’m surprised the Atlas only did 16mbps. Was your RF path clear?
  2. The MT retransmits at layer2, so you see latency instead of packet loss.
3

16Mbit is the real level of traffic, it can transmit more. The problem of Atlas is in packet lose on ethernet interface !!! My situation:
—ethercable——wireless— —ethercable—

When I ping from router1 to atlas1 or router2 to atlas2 during high traffic utilization, there is packet lose. When I change Atlas to MT, there is no packet lose. Therefore it do not depend on wireless link I think.

And can you advice how to check quality of Layer2?

4

how were you testing throughput?

5

throughput is not important, testing is done on real traffic. But when I want to test throughput, I use bandwidth software from behind routers.