查看網卡信息

1-mii-tool [-v/w] em1/em2/l0

em1: negotiated 100baseTx-FD, link ok

product info: vendor 00:aa:00, model 57 rev 1

basic mode:?? autonegotiation enabled

basic status: autonegotiation complete, link ok

capabilities: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

advertising:? 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control

link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

mii-tool工具一定要指定網卡，不能查全部。

2- ifconfig /ifconfig -a

eth0??Link encap:Ethernet HWaddr

00:09:6B:09:08:FC??????????inet addr:192.168.10.1 Bcast:192.168.10.255

Mask:255.255.255.0?????????inet6 addr: fe80::209:6bff:fe09:8fc/64 Scope:Link??????????UPBROADCAST?RUNNING?MULTICAST?MTU:1500

Metric:1?????????RX packets:106732953 errors:0 dropped:0 overruns:0

frame:0?????????TX packets:104379788 errors:0 dropped:0 overruns:0

carrier:0?????????collisions:0 txqueuelen:100??????????RX bytes:2351331877 (2.1 GiB) TX bytes:391707945 (373.5

MiB)?????????Base address:0x2500

Memory:fbfe0000-fc000000???eth1???Link

encap:Ethernet HWaddr 00:09:6B:09:08:FD???????????BROADCAST

MULTICAST?MTU:1500 Metric:1?????????RX packets:0 errors:0 dropped:0 overruns:0 frame:0?????????TX packets:0 errors:0 dropped:0 overruns:0 carrier:0?????????collisions:0 txqueuelen:1000??????????RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)?????????Base address:0x2540 Memory:fbfc0000-fbfe0000

3- ethtool em1/em2/l0 查看指定網卡狀態

\Settings for em1:

Supported ports: [ TP ]

Supported link modes:?? 10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

1000baseT/Full

Supported pause frame use: Symmetric

Supports auto-negotiation: Yes

Advertised link modes:? 10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

1000baseT/Full

Advertised pause frame use: Symmetric

Advertised auto-negotiation: Yes

Speed: 100Mb/s

Duplex: Full

Port: Twisted Pair

PHYAD: 1

Transceiver: internal

Auto-negotiation: on

MDI-X: on (auto)

Supports Wake-on: pumbg

Wake-on: g

Current message level: 0x00000007 (7)

drv probe link

Link detected: yes

4- sar工具，清楚看到網卡帶寬是否打滿，監控網絡流量

sar -n DEV/EDEV/NFS/NFSD/SOCK/ALL

sar -n DEV (統計時間) (統計次數) ：sar -n DEV 1 4(監控網絡流量)

sar-n顯示網絡信息，DEV顯示網絡接口信息，EDEV顯示網絡錯誤的統計數據，NFS統計活動的NFS客戶端信息，NFSD統計NFS服務器的信息，SOCK顯示套接字信息，ALL顯示所有5個開關

關注sar命令使用，統計、監控服務器信息

5-查看服務器網卡相關日志

/var/log/messages里面有沒有關于網卡的日志，有沒有網卡up/down的記錄

tail -n 100 /var/log/messages |grep (em1/em2/up/down/fail)

6- iptraf

實時查看網絡流量信息文本界面工具，不自帶

centos用yum -y install iptraf安裝

7-ifstat

查看實時網絡流量

8- iftop????實時查看網卡流量

總結

以上是生活随笔為你收集整理的c语言如何监控网卡信息,查看网卡信息及状态和网卡日志信息的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。