I have setup the following "lab" on my desk to evaluate and deeper understand Nstreme2:
Laptop ---- DeviceA(RB333) ------ DeviceB(RB600), both devices have their wireless cards simply connected to pigtails that "looks" each other. I've noted what follows:
Configuration
If I change Nstreme2 settings on one device (A or B), its IP address is lost and I can reach it only via WinBox on its MAC address. IP address will be back after reboot, but. This can be a serious problem when devices are installed and something needs to be changed into configuration
Throughput
I’ve measured full duplex throughput using MT Bandwidth test on my laptop, opening several tcp sessions using the “both” direction option. Throughput was 32Mbps in download (from RB600 to PC) and 7 Mbps in upload (from laptop to RB600), this is probably due to high number of tx-retries-lost: 4451 in Nstreme interface. I was expecting simmetrical results…
Is there a way to avoid loosing IP address when changes are made on NStreme configuration?
Is there a way to improve throughput and have it almost simmetrical?
Thanks
DeviceA configuration is as follows
Code: Select all
[admin@RB333] /interface wireless> print
Flags: X - disabled, R - running
0 name="wlan1" mtu=1500 mac-address=00:0C:42:1F:55:2C arp=enabled
interface-type=Atheros AR5413 mode=nstreme-dual-slave ssid="MikroTik"
frequency=5180 band=5ghz scan-list=default antenna-mode=ant-a
wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no
default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
default-client-tx-limit=0 hide-ssid=no security-profile=default
compression=no
1 name="wlan2" mtu=1500 mac-address=00:0C:42:1F:53:21 arp=enabled
interface-type=Atheros AR5413 mode=nstreme-dual-slave ssid="MikroTik"
frequency=5180 band=5ghz scan-list=default antenna-mode=ant-a
wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no
default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
default-client-tx-limit=0 hide-ssid=no security-profile=default
compression=no
[admin@RB333] /interface wireless nstreme-dual> print
Flags: X - disabled, R - running
0 R name="test" mtu=1500 mac-address=00:0C:42:1F:53:21 arp=enabled
disable-running-check=no tx-radio=wlan1 rx-radio=wlan2
remote-mac=00:0C:42:1F:55:9D tx-band=5ghz tx-frequency=5700
rx-band=5ghz rx-frequency=5200 disable-csma=yes
rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps rates-a/g=36Mbps
ht-rates=1,2,3,4,5,6,7,8 ht-guard-interval=long ht-channel-width=20mhz
ht-streams=single framer-policy=exact-size framer-limit=2560
[admin@RB333] /interface wireless nstreme-dual> monitor 0
numbers: 0
rx-signal-strength: -36dBm
tx-signal-strength: -43dBm
rx-rate: "36Mbps"
tx-rate: "36Mbps"
connected: yes
packets: 672582,605590
bytes: 329065372,839007456
frames: 421223,368697
frame-bytes: 324215020,855410330
hw-frames: 725573,441541
hw-frame-bytes: 344500846,858490254
tx-retries-timeout: 9
tx-retries-lost: 4451 <<<<<<-------------- probably this is the problem
rx-bad-seqs: 0
rx-duplicates: 67