Dotaz: ako je to s wifi rychlostami v skutocnosti

[jojo]

Zdroj internetu je optika 600/200 mbps. Konektivita ide cez operatorov huavej v bridgi do mojho vm pfsence, dalej cez gbit switch a nasleduje bridge wifi ap tplink archer c6.

Mam MB asrock Ak sa pripojim na archer c6 kablom, tak to ide spravne cca 570/190. V specifikacii MB sa uvadza

- Intel® 802.11ac WiFi Module
- Supports IEEE 802.11a/b/g/n/ac
- Supports Dual-Band (2.4/5 GHz)
- Supports high speed wireless connections up to 433Mbps

Wifi router

Podporuje standard 802.11ac
Souběžný přenos dat rychlostí 300 Mb/s v pásmu 2,4 GHz a 867 Mb/s v pásmu 5 GHz vytváří celkovou dostupnou šířku pásma 1200 Mb/s

Archer je v bridge a su zapnute obidva siete 2.4 aj 5Ghz. Ked som pri routery blizko, tak som pripojeny cez 5Ghz, ak som dalej, tak ma prepne na 2.4Ghz.

Som pripojeny 5Ghz, signal je OK, ale rychlost dosahujem len 150, max 200 mbps (linux mint 21). Ked nabootujem win 11, tak to ide az do 250 mbps. Skusal som sa rozne pohybovat no rozne miesta, rozne som smeroval anteny atd ... rychlost sa ani len nepriblizi ku 500 mbps. Jednoducho 250 mbps je maximum. Pokus som vyskusal aj na starsom xiaomi mobile, kde mam tiez ac a tam to ide tiez podobne.

Je to tak, ze ten wifi router, jednoducho nezvladne viac ako 250 mbps, alebo to nezvladne moj pc a mobil ?

Odpovědi

[X]

Jses s jistej, ze jedes pres 802.11ac a pouzivas dva kanaly? Dodej nejake vystupy. iwconfig, dmesg, iwlist lspci etc..

[jojo]

dmesg | grep iwlwifi
[    3.650052] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[    3.652343] iwlwifi 0000:02:00.0: loaded firmware version 29.198743027.0 3168-29.ucode op_mode iwlmvm
[    3.760169] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 3168, REV=0x220
[    3.782601] iwlwifi 0000:02:00.0: base HW address: 0c:7a:15:6b:09:86
[    3.885574] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0

iwconfig
lo        no wireless extensions.

eno1      no wireless extensions.

wlp2s0    IEEE 802.11  ESSID:"wifi-network"  
          Mode:Managed  Frequency:5.18 GHz  Access Point: 60:A4:B7:49:8B:F5   
          Bit Rate=433.3 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=66/70  Signal level=-44 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:34   Missed beacon:0

lspci
00:00.0 Host bridge: Intel Corporation Device 3e0f (rev 07)
00:02.0 VGA compatible controller: Intel Corporation CoffeeLake-S GT1 [UHD Graphics 610]
00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller
00:14.2 Signal processing controller: Intel Corporation 200 Series PCH Thermal Subsystem
00:16.0 Communication controller: Intel Corporation 200 Series PCH CSME HECI #1
00:17.0 SATA controller: Intel Corporation 200 Series PCH SATA controller [AHCI mode]
00:1c.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #5 (rev f0)
00:1d.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #11 (rev f0)
00:1f.0 ISA bridge: Intel Corporation Device a2ca
00:1f.2 Memory controller: Intel Corporation 200 Series/Z370 Chipset Family Power Management Controller
00:1f.3 Audio device: Intel Corporation 200 Series PCH HD Audio
00:1f.4 SMBus: Intel Corporation 200 Series/Z370 Chipset Family SMBus Controller
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-V
01:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc. A2000 NVMe SSD (rev 03)
02:00.0 Network controller: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10)

Nic specialne som nenastavoval. A na routery su zapnute obidva pasma 2.4/5 GHz + nastavene ssid a wpa2 heslo

[X]

Muzu pozadat jeste o vypis: iw phy, iw wlp2s0 station dump a pripadne iw dev wlp2s0 link Hadam, ze jedes jen na jeden kanal.

[jojo]

Tu su vsetky vystupy (vdaka)

Wiphy phy0
	wiphy index: 0
	max # scan SSIDs: 20
	max scan IEs length: 425 bytes
	max # sched scan SSIDs: 20
	max # match sets: 11
	Retry short limit: 7
	Retry long limit: 4
	Coverage class: 0 (up to 0m)
	Device supports RSN-IBSS.
	Device supports AP-side u-APSD.
	Device supports T-DLS.
	Supported Ciphers:
		* WEP40 (00-0f-ac:1)
		* WEP104 (00-0f-ac:5)
		* TKIP (00-0f-ac:2)
		* CCMP-128 (00-0f-ac:4)
		* CMAC (00-0f-ac:6)
	Available Antennas: TX 0x1 RX 0x1
	Configured Antennas: TX 0x1 RX 0x1
	Supported interface modes:
		 * IBSS
		 * managed
		 * AP
		 * AP/VLAN
		 * monitor
		 * P2P-client
		 * P2P-GO
		 * P2P-device
	Band 1:
		Capabilities: 0x116e
			HT20/HT40
			SM Power Save disabled
			RX HT20 SGI
			RX HT40 SGI
			RX STBC 1-stream
			Max AMSDU length: 3839 bytes
			DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 4 usec (0x05)
		HT Max RX data rate: 150 Mbps
		HT TX/RX MCS rate indexes supported: 0-7
		Bitrates (non-HT):
			* 1.0 Mbps
			* 2.0 Mbps (short preamble supported)
			* 5.5 Mbps (short preamble supported)
			* 11.0 Mbps (short preamble supported)
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
		Frequencies:
			* 2412 MHz [1] (22.0 dBm)
			* 2417 MHz [2] (22.0 dBm)
			* 2422 MHz [3] (22.0 dBm)
			* 2427 MHz [4] (22.0 dBm)
			* 2432 MHz [5] (22.0 dBm)
			* 2437 MHz [6] (22.0 dBm)
			* 2442 MHz [7] (22.0 dBm)
			* 2447 MHz [8] (22.0 dBm)
			* 2452 MHz [9] (22.0 dBm)
			* 2457 MHz [10] (22.0 dBm)
			* 2462 MHz [11] (22.0 dBm)
			* 2467 MHz [12] (22.0 dBm)
			* 2472 MHz [13] (22.0 dBm)
			* 2484 MHz [14] (disabled)
	Band 2:
		Capabilities: 0x116e
			HT20/HT40
			SM Power Save disabled
			RX HT20 SGI
			RX HT40 SGI
			RX STBC 1-stream
			Max AMSDU length: 3839 bytes
			DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 4 usec (0x05)
		HT Max RX data rate: 150 Mbps
		HT TX/RX MCS rate indexes supported: 0-7
		VHT Capabilities (0x33807120):
			Max MPDU length: 3895
			Supported Channel Width: neither 160 nor 80+80
			short GI (80 MHz)
			SU Beamformee
			RX antenna pattern consistency
			TX antenna pattern consistency
		VHT RX MCS set:
			1 streams: MCS 0-9
			2 streams: not supported
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT RX highest supported: 0 Mbps
		VHT TX MCS set:
			1 streams: MCS 0-9
			2 streams: not supported
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT TX highest supported: 0 Mbps
		Bitrates (non-HT):
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
		Frequencies:
			* 5180 MHz [36] (22.0 dBm) (no IR)
			* 5200 MHz [40] (22.0 dBm) (no IR)
			* 5220 MHz [44] (22.0 dBm) (no IR)
			* 5240 MHz [48] (22.0 dBm) (no IR)
			* 5260 MHz [52] (22.0 dBm) (no IR, radar detection)
			* 5280 MHz [56] (22.0 dBm) (no IR, radar detection)
			* 5300 MHz [60] (22.0 dBm) (no IR, radar detection)
			* 5320 MHz [64] (22.0 dBm) (no IR, radar detection)
			* 5500 MHz [100] (22.0 dBm) (no IR, radar detection)
			* 5520 MHz [104] (22.0 dBm) (no IR, radar detection)
			* 5540 MHz [108] (22.0 dBm) (no IR, radar detection)
			* 5560 MHz [112] (22.0 dBm) (no IR, radar detection)
			* 5580 MHz [116] (22.0 dBm) (no IR, radar detection)
			* 5600 MHz [120] (22.0 dBm) (no IR, radar detection)
			* 5620 MHz [124] (22.0 dBm) (no IR, radar detection)
			* 5640 MHz [128] (22.0 dBm) (no IR, radar detection)
			* 5660 MHz [132] (22.0 dBm) (no IR, radar detection)
			* 5680 MHz [136] (22.0 dBm) (no IR, radar detection)
			* 5700 MHz [140] (22.0 dBm) (no IR, radar detection)
			* 5720 MHz [144] (22.0 dBm) (no IR, radar detection)
			* 5745 MHz [149] (22.0 dBm) (no IR)
			* 5765 MHz [153] (22.0 dBm) (no IR)
			* 5785 MHz [157] (22.0 dBm) (no IR)
			* 5805 MHz [161] (22.0 dBm) (no IR)
			* 5825 MHz [165] (22.0 dBm) (no IR)
	Supported commands:
		 * new_interface
		 * set_interface
		 * new_key
		 * start_ap
		 * new_station
		 * new_mpath
		 * set_mesh_config
		 * set_bss
		 * authenticate
		 * associate
		 * deauthenticate
		 * disassociate
		 * join_ibss
		 * join_mesh
		 * remain_on_channel
		 * set_tx_bitrate_mask
		 * frame
		 * frame_wait_cancel
		 * set_wiphy_netns
		 * set_channel
		 * tdls_mgmt
		 * tdls_oper
		 * start_sched_scan
		 * probe_client
		 * set_noack_map
		 * register_beacons
		 * start_p2p_device
		 * set_mcast_rate
		 * connect
		 * disconnect
		 * channel_switch
		 * set_qos_map
		 * add_tx_ts
		 * set_multicast_to_unicast
	WoWLAN support:
		 * wake up on disconnect
		 * wake up on magic packet
		 * wake up on pattern match, up to 20 patterns of 16-128 bytes,
		   maximum packet offset 0 bytes
		 * can do GTK rekeying
		 * wake up on GTK rekey failure
		 * wake up on EAP identity request
		 * wake up on 4-way handshake
		 * wake up on rfkill release
		 * wake up on network detection, up to 11 match sets
	software interface modes (can always be added):
		 * AP/VLAN
		 * monitor
	valid interface combinations:
		 * #{ managed } <= 1, #{ AP, P2P-client, P2P-GO } <= 1, #{ P2P-device } <= 1,
		   total <= 3, #channels <= 2
	HT Capability overrides:
		 * MCS: ff ff ff ff ff ff ff ff ff ff
		 * maximum A-MSDU length
		 * supported channel width
		 * short GI for 40 MHz
		 * max A-MPDU length exponent
		 * min MPDU start spacing
	Device supports TX status socket option.
	Device supports HT-IBSS.
	Device supports SAE with AUTHENTICATE command
	Device supports low priority scan.
	Device supports scan flush.
	Device supports per-vif TX power setting
	P2P GO supports CT window setting
	P2P GO supports opportunistic powersave setting
	Driver supports full state transitions for AP/GO clients
	Driver supports a userspace MPM
	Driver/device bandwidth changes during BSS lifetime (AP/GO mode)
	Device supports static SMPS
	Device supports dynamic SMPS
	Device supports WMM-AC admission (TSPECs)
	Device supports configuring vdev MAC-addr on create.
	Device supports TDLS channel switching
	Device supports randomizing MAC-addr in scans.
	Device supports randomizing MAC-addr in sched scans.
	Device supports randomizing MAC-addr in net-detect scans.
	max # scan plans: 2
	max scan plan interval: 65535
	max scan plan iterations: 254
	Supported TX frame types:
		 * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
	Supported RX frame types:
		 * IBSS: 0x40 0xb0 0xc0 0xd0
		 * managed: 0x40 0xb0 0xd0
		 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * mesh point: 0xb0 0xc0 0xd0
		 * P2P-client: 0x40 0xd0
		 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * P2P-device: 0x40 0xd0
	Supported extended features:
		* [ VHT_IBSS ]: VHT-IBSS
		* [ RRM ]: RRM
		* [ SCAN_START_TIME ]: scan start timestamp
		* [ BSS_PARENT_TSF ]: BSS last beacon/probe TSF
		* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
		* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
		* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
		* [ EXT_KEY_ID ]: Extended Key ID support
		* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
		* [ DEL_IBSS_STA ]: deletion of IBSS station support
		* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
		* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support

Station 60:a4:b7:49:8b:f5 (on wlp2s0)
	inactive time:	2892 ms
	rx bytes:	3352345
	rx packets:	3930
	tx bytes:	604760
	tx packets:	2662
	tx retries:	12
	tx failed:	0
	beacon loss:	0
	beacon rx:	2208
	rx drop misc:	33
	signal:  	-44 [-44] dBm
	signal avg:	-44 [-44] dBm
	beacon signal avg:	-44 dBm
	tx bitrate:	433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1
	tx duration:	0 us
	rx bitrate:	433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1
	rx duration:	0 us
	authorized:	yes
	authenticated:	yes
	associated:	yes
	preamble:	long
	WMM/WME:	yes
	MFP:		no
	TDLS peer:	no
	DTIM period:	1
	beacon interval:100
	short slot time:yes
	connected time:	220 seconds
	associated at [boottime]:	8.517s
	associated at:	1662917809686 ms
	current time:	1662918029551 ms

Connected to 60:a4:b7:49:8b:f5 (on wlp2s0)
	SSID: wifi-network
	freq: 5180
	RX: 3457370 bytes (4303 packets)
	TX: 634744 bytes (2831 packets)
	signal: -44 dBm
	rx bitrate: 390.0 MBit/s VHT-MCS 8 80MHz short GI VHT-NSS 1
	tx bitrate: 433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1

	bss flags:	short-slot-time
	dtim period:	1
	beacon int:	100

[X]

To nevypada vubec spatne:

rx bitrate: 390.0 MBit/s VHT-MCS 8 80MHz short GI VHT-NSS 1
tx bitrate: 433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1

Jak meris tu rychlost? Na Archeru mas puvodni SW nebo OpenWRT? Asi bych to otestovat pres iperf3 nebo neco jako https://speedtest.cesnet.cz/, ale u tech web testu je problem, ze to cestou nabali dalsi bordel.

[jojo]

Zda sa mi, ze uz pri velmi malom vychileni anten (ako na routery, tak na PC) to dost meni namerane vysledky. Ta siet 5GHz je asi hodne citliva na fyzicke nastavenie anten. Podla vysledkov uz tieto rychlosti akceptujem

[Max]

Když pomineme hw, tak rychlosti záleží vždy na konkrétním prostředí. Pokud nemáš přímý výhled mezi anténami, tak se hraje mj. i na odrazy, co je po cestě a tak. Dále záleží, co je v okolí za wifi sítě. Aby jsi dosáhl plné propustnosti u 5GHz, tak musíš skoro celé pásmo vysaturovat, tj. pokud jsi třeba v bytě, tak tím zarušíš všechny okolo sebe.
Zdar Max

[jojo]

Anteny na PC a wifi sa az tak dobre nevidia, pretoze router je vo zvislej polohe za kominom _||_ . Je to sice v jednej miestnosti asi 3m od seba, ale je to kvazi za rohom. Aby sa videli, tak by som musel posunut cely pracovny stol aj s PC asi o 2m co by bolo dost blbe. Nameral som aj 300 mbps a viac uz od toho asi nebudem chciet a nebudem sahat a kyvat s antenami, lebo teraz to ide celkom OK.

vdaka za posunutie