Bezdrátové propojení dvou budov - dva spoje

[zigi]

to hapi:

Takže radši nastavit Supported Rates A/G na vše či raději rovnou vybrat default?

Tu wiki stránku ohledně AMPDU znám, ale vůbec tam nemají uvedeno, co které priorita znamená, podle čeho se vlastně nastavuje/přiděluje. Jen je tam uvedeno, že to není třeba dobrý pro VoIP.

[hapi]

HT AMPDU je kolik 802.11 rámců má poslat bez potřeby potvrzení. Je to něco na způsob nstreme kdy wifina pošle víc než jeden rámec. Prostě to shlukuje rámce. Tim se ušetří na režiji a hlavně na čase než protistrana pošle že to přijala protože to musela posílat po každym rámci a s AMPDU to posílá třeba po až 8 rámcích. Takhle to posílá po větších dávkách než chce potvrzení. Což samozřejmně zvyšuje latenci a fakt že data přicházeji sekaně což může vadit právě tomu voipu. Ale zvyšuje to rychlost ale nebude to mít takovej efekt u jednoho spojení jako spíš třeba u 20. Ve skutečnosti to může dokonce rychlost snížit. Ale jak jsem říkal, to platí pro čistý 802.11n bez úprav jako je NV2 nebo nstreme.

[loopie]

Zdravim,
jestli se podle obrazku nepletu, tak spoj vede na Letne, rovnobezne s tramvaji. Ve vzduchu tam toho lita daleko vic, nez ukazuje sken z jednotek - z jedne strany Bohnice, druha strana je otevrena smerem na centrum. S temito antenami a v takto "hustem" eteru, to myslim lepe uz nepujde. Osobne bych si usetril cas s ladenim wifiny a prevesil si kabel.

[Walkeer]

.. Takhle to posílá po větších dávkách než chce potvrzení. Což samozřejmně zvyšuje latenci a fakt že data přicházeji sekaně což může vadit právě tomu voipu. ..

Vysvestlis prosim, co ma opozdene potvrzovani ramcu spolecneho s latenci?

ODPOVED: takze duvod vetsich laneci neni v opoznedem potvrzovani, nybrz v tom ,ze kdyz se vysila jeden velky ramec (az 64kB), tak se samozrejme musi nejdriv nashomazdit dostatek dat, aby se ten ramec mohl naplnit. Podobne to je s "tcp packing" v ROSu. Stejne tak se pri vysilani velkych ramcu nemuze nic prijimat..

[zigi]

Ahoj,

spoj více méně funguje dobře - dobrá propustnost (SAMBA i občas dá cca 7MB/s i latence (bez zátěže cca 1ms, v zátěži cca <10ms), ale v logu se objevuje odpojování a vzápětí hned opětovné připojení. Pomůže stabilizaci navýšení "Tx power"?

Log z klienta - station wds:

Kód: Vybrat vše

07:09:21 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
07:09:23 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
10:51:35 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
10:51:37 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
10:52:36 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
10:52:38 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
10:53:10 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
10:53:13 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
10:53:53 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
10:53:55 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
10:54:33 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
10:54:35 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
10:59:02 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
10:59:04 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
11:03:08 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
11:03:10 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
11:05:36 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
11:05:38 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
11:11:18 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
11:11:21 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
11:11:54 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
11:11:56 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
11:12:25 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
11:12:28 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
11:22:01 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
11:22:04 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
11:22:57 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
11:22:59 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:00:11 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:00:13 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:04:05 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:04:07 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:04:33 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:04:36 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:04:59 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
12:05:01 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:07:11 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:07:13 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:07:33 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:07:36 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:37:51 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss 
12:37:54 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2 
12:38:18 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss 
12:38:20 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2 
12:38:36 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, disabling 
12:38:39 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2 
12:39:35 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
12:39:37 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:41:09 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
12:41:12 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2 
12:41:38 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, disabling 
12:41:41 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:42:22 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, received deauth: unspecified (1)
12:42:25 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:42:53 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:42:55 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:43:44 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:43:47 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
12:53:35 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
12:53:38 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
13:02:32 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
13:02:35 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
13:08:16 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
13:08:18 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
13:14:05 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
13:14:08 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
13:29:51 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
13:29:54 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
14:34:33 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
14:34:36 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
14:57:56 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
14:57:59 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
14:59:26 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, extensive data loss
14:59:28 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2
15:06:36 wireless,info 00:0C:42:6B:2C:C4@wlan1: lost connection, not polled for too long
15:06:38 wireless,info 00:0C:42:6B:2C:C4@wlan1 established connection on 5680, SSID WDS-MH106-MH108-2