0 networking linux bandwidth windows-7 slow-connection
大家好,我用 1000Mbps 网卡连接了两台 PC。其中一个(A)运行 Fedora 8,而另一个(B)运行 Windows7。我用 Ixchariot 测试了它们之间的带宽,它显示大约 10Mbps。如果 A 和 B 都运行 Windows7,我再次运行 Ixchariot,它显示大约 1000Mbps。我将文件从 B 传输到 A(Fedora 8),速度约为 10Mbps。为什么两次测试的带宽不同?
以下是 ifconfig 和 ethtool 的输出:
[root@Dom1 ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:24:1D:50:B9:C0
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::224:1dff:fe50:b9c0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:290214 errors:0 dropped:889731948 overruns:0 frame:0
TX packets:579263 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:19165638 (18.2 MiB) TX bytes:875177493 (834.6 MiB)
Interrupt:17 Base address:0xc000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:4932 errors:0 dropped:0 overruns:0 frame:0
TX packets:4932 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5011460 (4.7 MiB) TX bytes:5011460 (4.7 MiB)
[root@Dom1 ~]# ethtool -S eth0
NIC statistics:
tx_packets: 816440
rx_packets: 409104
tx_errors: 0
rx_errors: 0
rx_missed: 0
align_errors: 0
tx_single_collisions: 0
tx_multi_collisions: 0
unicast: 408962
broadcast: 38
multicast: 142
tx_aborted: 0
tx_underrun: 0
[root@Dom1 ~]# ethtool eth0
Settings for eth0:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
Link detected: yes
[root@Dom1 ~]# ethtool -i eth0
driver: r8169
version: 2.2LK-NAPI
firmware-version:
bus-info: 0000:03:00.0
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您的 NIC 或驱动程序确实有问题。ifconfig报告RX 数据包:290214 错误:0 丢弃:889731948 溢出:0 帧:0所以几乎 900,00000 个数据包被丢弃,只有 300,000 个收到!那是巨大的!
尝试调查日志(/var/log/messages以及 的输出dmesg)。
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