RB532A R5 + R52-350 + NSTREME + 10500m + FRAMER + 3.0RC13

Hello.

It takes days to achieve that quality.

root@:~# ping 77.242.. -i 0.001
PING 77.242.
.
* (77.242..) 56(84) bytes of data.
64 bytes from 77.242..: icmp_seq=1795 ttl=64 time=0.848 ms

— 77.242.230.20 ping statistics —
1795 packets transmitted, 1795 received, 0% packet loss, time 2130ms
rtt min/avg/max/mdev = 0.832/1.065/21.070/1.440 ms, pipe 2

What do you think about it? Signal is -59 and -61 on the sides, noise -101dBm, rate set to 48/48mbit. CSMA and POOLING disabled.

It’s NSTREME so it was a bit hard to remove “standard” ping jitter.

Why didn’t you just gave us the totals?
You can do this with any wireless setup for 10KM and no traffic on the link.

Hello.

All firewalls disabled, modules R52H.
532A R5, freq 5680, chan 20MHz, WDS withour framing and nstreme = 15mbit HDX and 8/6 FDX
same bridge with NSTREME AND FRAMING = 36mbit HDX and 17/17FDX

ROS 3.0RC13

Any ideas how to fix that low transfer?

Use better antennas, better cards, pigtails or change whatever is pushing your signal back. 10 kms you should easyli do 50mbps with 60 cm. antennas at both ends and signal ~<-60db

status: connected-to-ess
band: 5ghz
frequency: 5680MHz
tx-rate: 48Mbps
rx-rate: 48Mbps
ssid: “bridge”
bssid: 00:0C:42:1B:24:1D
radio-name: “000C421B241D”
signal-strength: -62dBm
noise-floor: -102dBm
signal-to-noise: 40dB
tx-ccq: 94%
p-throughput: 29816
current-ack-timeout: 92
current-distance: 92
wds-link: yes
nstreme: no
framing-mode: none
routeros-version: “2.9.50”
last-ip: 77.242..
802.1x-port-enabled: yes
authentication-type: none
encryption: none
compression: no
current-tx-powers: 6Mbps:24,9Mbps:24,12Mbps:24,18Mbps:24,24Mbps:24,36Mbps:22,48Mbps:20,54Mbps:19
notify-external-fdb: no

Version changed to 2.9.50, singal -59 / -60dBm, still 9mbit / 15mbit HDX

Have no idea :slight_smile:

On nstreme all is quite good but there is ping jitter 1-10ms


status: connected-to-ess
band: 5ghz
frequency: 5540MHz
tx-rate: 36Mbps
rx-rate: 36Mbps
ssid: “bridge”
bssid: 00:0C:42:18:E8:40
radio-name: “prk”
signal-strength: -55dBm
tx-signal-strength: -57dBm
tx-ccq: 86%
rx-ccq: 72%
p-throughput: 28587
current-ack-timeout: 91
current-distance: 91
wds-link: yes
nstreme: no
framing-mode: none
routeros-version: “2.9.50”
last-ip: 77.242..
802.1x-port-enabled: yes
authentication-type: none
encryption: none
compression: no
current-tx-powers: 6Mbps:17,9Mbps:17,12Mbps:17,18Mbps:17,24Mbps:17,
36Mbps:16,48Mbps:13,54Mbps:13
notify-external-fdb: no

No change, still same transfer. :confused:

Turn on tubo mode, or try nstreme + framer=none polling enabled for best results

already tried nstreme… jitter is too big.. ping are random - min 0.8 max 50ms, avg 3ms

did you enable “polling” when you tried Nstreme? Your jitter numbers suggest polling wasn’t turned one…

George

polling turned ON

ok, still testing…

20MHz channel, freq 5680, signal -57/-59 @ 36mbit, no framer policy, no nstreme — BT showing 15mbit TCP halfduplex

20MHz channel, freq 5680, signal -57/-59 @ 36mbit, framer policy DYNAMIC 4000, nstreme enabled — BT showing 28mbit TCP halfduplex


15 mbit without nstreme and 28 with? is it ok? its a little weird

What you’re seeing is completely normal.

A 532 does something in the order of 23Mbits UDP on a long link with Nstreme+polling on, and about half that with regular old 802.11a (no Nstreme+polling). The speed limitation is mostly processor capability on a 532. A 133 does about 11-13Mbits UDP in the same environment.

You get about 35Mbits UDP with a 333 in the same scenario. You will see around 75Mbits UDP running a turbo (40MHz) channel on a 333. We have a couple running that way that work just great, been up and stable for a couple of weeks now with heavy use.

We’re been doing this with MT for better than five years, and have lots of 20+km links running, with the longest over 50km.

George

OK, thanks

The best what i got was 34mbit UDP and 24mbit TCP… I need to achieve 10/10mbit TCP without any losses. In nstreme this is working well.

EOIP + nstreme + polling

In near future I will try one RB600 and P4 2.8 on the other side.

Ah Ha!

Watch out for packet size on EoIP. You may find very slow rates when moving 1500 byte packets. Experiment by changing packet sizes down to maybe 1420.

An example: 1500 bype packets over EoIP, 4Mb/s. 1420 byte packets over EoIP, 14Mb/s.

We are seeing issues with this on our network. Lots and lots of EoIP tunnels. It appears that some customers do not do path MTU discovery and keep trying to shove 1500 byte packets down the pipe which appears to be causing serious fragmentation issues.

We are considering changing our customer-facing Ethernet to 1420 MTU and see if that helps the problem…

George

Hi George,

Ensuring connection tracking is off at every router in the chain seems to improve the rate at which fragmented 1500 byte packets (i.e. 1500 byte payload inside of EoIP) pass through the routers.

At the moment we’re doing heaps of EoIP with all tunnel sizes set to 1500 bytes. We’ll be moving to MPLS as soon as it’s stable. :slight_smile:

Cheers,

Jon