Setup:
![Screenshot_Test-Setup](https://forum.freifunk-kreisgt.de/uploads/default/original/1X/59b24a63195aec4ec7533e585fc125d2c4f24b23.jpeg)
Auf dem 1.5er wurde Mesh-VPN deaktiviert (sonst hohe CPU-Last durch tunneldigger-syslog-Einträge, auf dem 1.4er WiFi-Mesh auf 2,4 GHz.
An beiden Freifunk-Knoten hängen Linuxe, und der Laptop hinter dem 1.5er 3600er macht …
root@ysabell:~# echo "Sending ..."; iperf3 -t 300 -c 2001:bf7:1322:17:a2ce:c8ff:fe5b:4714 | awk '/sender$/ {print $0;} /receiver$/ {print $0;}' ; echo ; echo "Receiving ..." ; iperf3 -R -t 300 -c 2001:bf7:1322:17:a2ce:c8ff:fe5b:4714 | awk '/sender$/ {print $0;} /receiver$/ {print $0;}'
Sprich: es wird iperf3
über das WiFi-Mesh genutzt.
1.4.0~101 (VHT40) <=> 1.5.0~99 (VHT40):
iwinfo:
root@33332-FW-Test-1-4-0:~# iwinfo
[…]
mesh1 ESSID: "17:47:de:ca:fb:ad"
Access Point: 0A:BF:54:CB:78:8D
Mode: Mesh Point Channel: 44 (5.220 GHz)
Tx-Power: 19 dBm Link Quality: 64/70
Signal: -46 dBm Noise: -89 dBm
Bit Rate: 300.0 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11an
Hardware: 168C:0033 168C:A120 [Atheros AR9580]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy1
[…]
root@33332-Schalueckstr-107-afd6:~# iwinfo
[…]
mesh1 ESSID: "17:47:de:ca:fb:ad"
Access Point: 22:C5:E3:28:9B:A5
Mode: Mesh Point Channel: 44 (5.220 GHz) HT Mode: HT40
Center Channel 1: 46 2: unknown
Tx-Power: 15 dBm Link Quality: 59/70
Signal: -52 dBm Noise: -92 dBm
Bit Rate: 270.0 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11a/n
Hardware: 168C:0033 168C:A120 [Atheros AR9580]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy1
[…]
Ergebnis:
Sending ...
[ 5] 0.00-300.00 sec 2.42 GBytes 69.2 Mbits/sec 310 sender
[ 5] 0.00-300.07 sec 2.42 GBytes 69.2 Mbits/sec receiver
Receiving ...
[ 5] 0.00-300.04 sec 1.73 GBytes 49.4 Mbits/sec 7401 sender
[ 5] 0.00-300.00 sec 1.73 GBytes 49.4 Mbits/sec receiver
Bemerkenswert: beide 3600er gehen auf 0% idle im top -d 2
zurück und auf über 80% Soft-IRQs hoch.
1.4.0~101 (VHT40) <=> 1.5.0~99 (VHT20):
iwinfo:
root@33332-FW-Test-1-4-0:~# iwinfo
[…]
mesh1 ESSID: "17:47:de:ca:fb:ad"
Access Point: 0A:BF:54:CB:78:8D
Mode: Mesh Point Channel: 44 (5.220 GHz)
Tx-Power: 15 dBm Link Quality: 66/70
Signal: -44 dBm Noise: -89 dBm
Bit Rate: 144.4 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11an
Hardware: 168C:0033 168C:A120 [Atheros AR9580]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy1
[…]
root@33332-Schalueckstr-107-afd6:~# iwinfo
[…]
mesh1 ESSID: "17:47:de:ca:fb:ad"
Access Point: 22:C5:E3:28:9B:A5
Mode: Mesh Point Channel: 44 (5.220 GHz) HT Mode: HT20
Center Channel 1: 44 2: unknown
Tx-Power: 15 dBm Link Quality: 56/70
Signal: -54 dBm Noise: -93 dBm
Bit Rate: 144.4 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11a/n
Hardware: 168C:0033 168C:A120 [Atheros AR9580]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy1
[…]
Ergebnis:
Sending ...
[ 5] 0.00-300.00 sec 1.77 GBytes 50.6 Mbits/sec 87 sender
[ 5] 0.00-300.04 sec 1.76 GBytes 50.5 Mbits/sec receiver
Receiving ...
[ 5] 0.00-300.04 sec 1.47 GBytes 42.0 Mbits/sec 12927 sender
[ 5] 0.00-300.00 sec 1.47 GBytes 42.0 Mbits/sec receiver
Nur noch 40-60% Soft-IRQ …
Neuere HW
Ich habe dann 33332-FW-Test-1-4-0 (TP-Link TL-WDR3600 v1) gegen 33332-Schalueckstr-107-5c70 (TP-Link Archer C6 v2 (EU/RU/JP)) getauscht, 2,4, GHz-Mesh abgeschaltet und auf beiden Seiten auf VHT40 gestellt:
iwinfo:
root@33332-Schalueckstr-107-5c70:~# iwinfo
[…]
mesh0 ESSID: "17:47:de:ca:fb:ad"
Access Point: 52:B2:D2:F9:45:E1
Mode: Mesh Point Channel: 44 (5.220 GHz) HT Mode: HT40
Center Channel 1: 46 2: unknown
Tx-Power: 23 dBm Link Quality: 70/70
Signal: -39 dBm Noise: -106 dBm
Bit Rate: 123.0 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11ac/n
Hardware: 168C:0056 0000:0000 [Qualcomm Atheros QCA9886]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy0
[…]
root@33332-Schalueckstr-107-afd6:~# iwinfo
[…]
mesh1 ESSID: "17:47:de:ca:fb:ad"
Access Point: 22:C5:E3:28:9B:A5
Mode: Mesh Point Channel: 44 (5.220 GHz) HT Mode: HT40
Center Channel 1: 46 2: unknown
Tx-Power: 15 dBm Link Quality: 66/70
Signal: -44 dBm Noise: -92 dBm
Bit Rate: 270.0 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11a/n
Hardware: 168C:0033 168C:A120 [Atheros AR9580]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy1
[…]
Ergebnis:
Sending ...
[ 5] 0.00-300.00 sec 2.27 GBytes 65.0 Mbits/sec 9157 sender
[ 5] 0.00-300.04 sec 2.27 GBytes 65.0 Mbits/sec receiver
Receiving ...
[ 5] 0.00-300.05 sec 2.36 GBytes 67.7 Mbits/sec 400 sender
[ 5] 0.00-300.00 sec 2.36 GBytes 67.7 Mbits/sec receiver
Noch neuere HW
33332-Schalueckstr-107-afd6 weicht 33332-Testnode-c3a7, einer 4040. VHT40, Mesh nur auf 5 GHz. Leider verlor der C5 immer wieder den Link zur 4040.
iwinfo:
root@33332-Schalueckstr-107-5c70:~# iwinfo mesh0 info
mesh0 ESSID: "17:47:de:ca:fb:ad"
Access Point: 52:B2:D2:F9:45:E1
Mode: Mesh Point Channel: 44 (5.220 GHz) HT Mode: HT40
Center Channel 1: 46 2: unknown
Tx-Power: 23 dBm Link Quality: 67/70
Signal: -43 dBm Noise: -106 dBm
Bit Rate: 300.0 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11ac/n
Hardware: 168C:0056 0000:0000 [Qualcomm Atheros QCA9886]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy0
root@33332-Testnode-c3a7:~# iwinfo mesh1 info
mesh1 ESSID: "17:47:de:ca:fb:ad"
Access Point: 6E:AA:42:F2:B8:65
Mode: Mesh Point Channel: 44 (5.220 GHz)
Tx-Power: 23 dBm Link Quality: 63/70
Signal: -47 dBm Noise: -106 dBm
Bit Rate: 400.0 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11nac
Hardware: unknown [Generic MAC80211]
TX power offset: unknown
Frequency offset: unknown
Supports VAPs: yes PHY name: phy1
Ergebnis:
Sending ...
[ 5] 0.00-300.00 sec 3.69 GBytes 106 Mbits/sec 10349 sender
[ 5] 0.00-300.10 sec 3.68 GBytes 105 Mbits/sec receiver
Min/Max: 0.0/147.0 MBit/sec
Receiving ...
…
Zum Vergleich, beidseitig VT20 im 2,4-GHz-Band:
iwinfo:
root@33332-Schalueckstr-107-5c70:~# iwinfo mesh1 info
mesh1 ESSID: "17:47:de:ca:fb:ad"
Access Point: 52:B2:D2:F9:45:E5
Mode: Mesh Point Channel: 5 (2.432 GHz) HT Mode: HT20
Center Channel 1: 5 2: unknown
Tx-Power: 20 dBm Link Quality: 68/70
Signal: -42 dBm Noise: -84 dBm
Bit Rate: 144.4 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11b/g/n
Hardware: 168C:0033 168C:9560 [Qualcomm Atheros QCA9560]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy1
root@33332-Testnode-c3a7:~# iwinfo mesh0 info
mesh0 ESSID: "17:47:de:ca:fb:ad"
Access Point: 6E:AA:42:F2:B8:61
Mode: Mesh Point Channel: 5 (2.432 GHz)
Tx-Power: 20 dBm Link Quality: 58/70
Signal: -52 dBm Noise: -93 dBm
Bit Rate: 144.4 MBit/s
Encryption: none
Type: nl80211 HW Mode(s): 802.11bgn
Hardware: unknown [Generic MAC80211]
TX power offset: unknown
Frequency offset: unknown
Supports VAPs: yes PHY name: phy0
Ergebnis:
Sending ...
[ 5] 0.00-300.00 sec 2.72 GBytes 77.9 Mbits/sec 7760 sender
[ 5] 0.00-300.05 sec 2.72 GBytes 77.8 Mbits/sec receiver
Min/Max: 10.5/94.4 MBit/sec
Receiving ...
[ 5] 0.00-300.04 sec 2.71 GBytes 77.6 Mbits/sec 608 sender
[ 5] 0.00-300.00 sec 2.71 GBytes 77.6 Mbits/sec receiver
Min/Max: 28.4/91.5 MBit/sec