PTP 65KM NETMETAL RATE 780Mbps/702Mbps Signal-45/-46 but POOR PERFORMANCE BETWEEN EXTERNAL ROUTERs - ETHERNET BRIDGE

RouterOS Wireless Networking
1

Dear,

I mounted a link with 2x NETMETAL5 (RB922) and 2x rocket rd-5g34 with SLANT system (AF-5G-OMT-S45) as below:

(ENLACE1)

A-POINT RB3011-ether2
<1Gbps cable>
B-POINT RB922-ether1
<702Mbps / 780Mbps nv2> (65KM)
C-POINT RB922-ether1

D-POINT RB3011-ether2

Signal = TX-45 RX-46 702Mbps / 780Mbps
SNR = 60dB
Distance 65KM


Between A and B it sends 350Mbps TCP in BTEST (cable)
Between B and C it sends 170Mbps TCP in BTEST (wireless)
Between C and D it sends 350Mbps TCP in BTEST (cable)
Between A and D sends only 70Mbps in BTEST (cable + wireless)

THIS IS PROBLEM. POOR Performance between ROUTERs connected in NETMETAL.
Wireless speed is very good.(between netmetal) but in external ethernet bridge is poor performance.
diagram-problem-throughput.jpg
TCP.jpg
UDP.jpg
rate780585.jpg

2

What Ros Version?
Bridge fast forward active?

  1. what Modulation Rates you see if you reduce power a little bit to get around -55??

  2. nv2 is not optimized for 802.11ac

  3. with this distance no chance for 802.11 (higher troughput)

3

What channel width you have used?
We want to setup several PTP links on triple chain NetMetal, but 5ghz is licensed in our country.