百兆光纤测速20m

最近家里换成了百兆光纤,可是手机测速经常只是50 M,而安装Debian系统的笔记本无线测速仅仅是20M。请问是不是和网卡驱动有关系,或是别的原因?
我的网卡是Broadcom BCM4313。

lspci -k | grep Network 03:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01) Subsystem: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter

sudo ethtool -i wlan0 driver: wl0 version: 6.30.223.271 (r587334) firmware-version: expansion-rom-version: bus-info: supports-statistics: no supports-test: no supports-eeprom-access: no supports-register-dump: no supports-priv-flags: no

sudo modinfo wl filename: /lib/modules/4.7.0-1-amd64/updates/dkms/wl.ko license: MIXED/Proprietary license: MIXED/Proprietary alias: pci:v*d*sv*sd*bc02sc80i* depends: cfg80211 vermagic: 4.7.0-1-amd64 SMP mod_unload modversions parm: passivemode:int parm: wl_txq_thresh:int parm: oneonly:int parm: piomode:int parm: instance_base:int parm: nompc:int parm: intf_name:string

sudo lshw -C network *-network description: Wireless interface product: BCM4313 802.11bgn Wireless Network Adapter vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: wlan0 version: 01 serial: 2c:d0:5a:b2:10:ca width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) ip=192.168.3.53 latency=0 multicast=yes wireless=IEEE 802.11 resources: irq:17 memory:f4700000-f4703fff

[code]sudo iwconfig
eth0 no wireless extensions.

wlan0 IEEE 802.11 ESSID:"TP_LINK"
Mode:Managed Frequency:2.432 GHz Access Point: 94:77:2B:8D:C2:1C
Bit Rate=72 Mb/s Tx-Power=200 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=52/70 Signal level=-58 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

lo no wireless extensions.
[/code]

驱动问题,你得安装Broadcom BCM4313私有驱动

由modinfo wl查看驱动程序信息,wl似为私有驱动。如果不是,如何安装私有驱动呢?

我的无线网卡与你同样的型号可是我自己用的是archlinux系统不是debian,你可以自行 google broadcom wl

[quote=“Pirate”]而安装Debian系统的笔记本无线测速仅仅是20M。
driver: wl0[/quote]

目前使用的已经是私有驱动 ‘wl’。20M 对应的传输速度约为 2.5 MiB/s,对于在 Linux 下相对孱弱的博通无线网卡而言,这个表现完全可以接受。

看来问题出在硬件上。如何得知Broadcom BCM4313的最大传输速度?

用有线方式上网测了一下网速,确实是100M的带宽。