使用nicstat全面查看你的网卡信息

我以前用脚本实现对实时网卡流量统计（http://angus717.blog.51cto.com/1593644/1186455），今天发现一个更好用的工具nicstat。

•  nicstat可以提供更加全面的网卡信息。
            显示TCP流量统计
            显示UDP流量统计
            报告进出网卡的字节数
            报告进出网卡的数据数
            报告网卡利用率
            报告NIC饱和度和其他信息

 

完整的安装过程（基于centos 6.3 x86_64，如果是ubuntu或者其linux可以参照官网文档）

 安装make环境

yum install gcc gcc-c++ make automake autoconf -y

由于nicstat依赖32 bit glibc package，所以

yum install libgcc.i686 glibc.i686 glibc-devel.i686  -y

   不安装glibc.i686 会报下面的错误

[root@localhost nicstat-1.92]# make
gcc -O3 -m32    nicstat.c   -o nicstat
nicstat.c:99:1: warning: "DUPLEX_UNKNOWN" redefined
In file included from nicstat.c:84:
/usr/include/linux/ethtool.h:519:1: warning: this is the location of the previous definition
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libgcc_s.so when searching for -lgcc_s
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libgcc_s.so when searching for -lgcc_s
/usr/bin/ld: cannot find -lgcc_s
collect2: ld returned 1 exit status
make: *** [nicstat] Error 1

不安装glibc-devel.i686 make会报下面错误

[root@andy nicstat-1.92]# make
gcc -O3 -m32    nicstat.c   -o nicstat
In file included from /usr/include/features.h:385,
from /usr/include/stdio.h:28,
from nicstat.c:33:
/usr/include/gnu/stubs.h:7:27: error: gnu/stubs-32.h: No such file or directory
nicstat.c:99:1: warning: "DUPLEX_UNKNOWN" redefined
In file included from nicstat.c:84:
/usr/include/linux/ethtool.h:689:1: warning: this is the location of the previous definition
make: *** [nicstat] Error 1
======> yum install glibc-devel.i686

下载文件并安装

cd /usr/local/src
wget http://nchc.dl.sourceforge.net/project/nicstat/nicstat-1.92.tar.gz
tar xf nicstat-1.92.tar.gz
cd nicstat-1.92
cp Makefile.Linux Makefile
make

正常make完如下

[root@localhost nicstat-1.92]# make
gcc -O3 -m32    nicstat.c   -o nicstat
mv nicstat `./nicstat.sh --bin-name`

 

nicstat使用

（一）

[root@localhost nicstat-1.92]# ./nicstat.sh
Time      Int   rKB/s   wKB/s   rPk/s   wPk/s    rAvs    wAvs %Util    Sat
13:50:43       lo    0.01    0.01    0.06    0.06   94.88   94.88  0.00   0.00
13:50:43     eth0   16.48    0.59   12.25    7.37  1377.6   82.43  0.01   0.00

对于各项的解释

rKB/s : Kilobytes/second received.
wKB/s : Kilobytes/second written.
rPk/s : Packets/second received.
wPk/s : Packets/second written.
rAvs : Average size of packets received).
wAvs : Average size of packets transmitted.
%Util : Percentage utilization of the interface.
Sat : This the number of errors/second seen for the interface. An indicator the interface may be approaching saturation. This statistic is combined from a number of kernel statistics. It is recommended to use the -x option to see more individual statistics when attempting to diagnose a network issue.

（二）

[root@localhost nicstat-1.92]# ./nicstat.sh -t
13:58:05    InKB   OutKB   InSeg  OutSeg Reset  AttF %ReTX InConn OutCon Drops
TCP         0.00    0.00   10.50    6.50  0.00  0.00 0.000   0.00   0.02  0.00

用于查看tcp信息的

InKB : 每秒接收多少字节
OutKB : 每秒传输收多少字节
InSeg : 每秒接收多少数据段
OutSeg : 每秒传输多少数据段
Reset :TCP连接直接从ESTABLISHED状态或CLOSE-WAIT状态过渡到CLOSED状态的次数
AttF :TCP连接直接从SYN-SENT状态或SYN-RCVD状态过渡到CLOSED状态次数加上TCP连接直接从SYN-RCVD状态到LISTEN状态
%ReTX :TCP报文重传率
InConn :TCP连接直接从LISTEN状态过渡到SYN-RCVD状态次数
OutCon :TCP连接直接从CLOSED状态过渡到SYN-SENT状态次数
Drops :从TCP已建立连接队列和没有建立的连接队列丢弃数据包的次数

（三）

[root@localhost nicstat-1.92]# ./nicstat.sh -u
14:22:21                    InDG   OutDG     InErr  OutErr
UDP                         0.02    0.09      0.00    0.00

（四）

[root@localhost nicstat-1.92]# ./nicstat.sh -x
14:22:50      RdKB    WrKB   RdPkt   WrPkt   IErr  OErr  Coll  NoCP Defer  %Util
lo            0.00    0.00    0.04    0.04   0.00  0.00  0.00  0.00  0.00   0.00
eth0         11.15    0.40    8.39    5.02   0.00  0.00  0.00  0.00  0.00   0.01

（五）
等同于执行-t -u -x

[root@localhost nicstat-1.92]# ./nicstat.sh -a
14:24:42    InKB   OutKB   InSeg  OutSeg Reset  AttF %ReTX InConn OutCon Drops
TCP         0.00    0.00    7.75    4.81  0.00  0.00 0.000   0.00   0.01  0.00
14:24:42                    InDG   OutDG     InErr  OutErr
UDP                         0.02    0.08      0.00    0.00
14:24:42      RdKB    WrKB   RdPkt   WrPkt   IErr  OErr  Coll  NoCP Defer  %Util
lo            0.00    0.00    0.04    0.04   0.00  0.00  0.00  0.00  0.00   0.00
eth0         10.94    0.40    8.24    4.93   0.00  0.00  0.00  0.00  0.00   0.01

 :)便于操作：

echo "alias nicstat='bash /usr/loacl/src/nicstat-1.92/nicstat.sh'" > /etc/profile.d/nicstat.sh

附加安装脚本：

 

#/bin/bash
#author junun
#blog http://angus717.blog.51cto.com
#
SOFT_DIR=/usr/local/src
function nicstat_ins {
echo "===========will inst nicstat"
ping -c 1 -t 1 www.baidu.com
if [[ $? -gt 0 ]];then
echo "nameserver 8.8.8.8\rnameserver 202.96.128.68" >>  /etc/resolv.conf
fi
yum install gcc gcc-c++ make automake autoconf -y
yum install libgcc.i686 glibc.i686 glibc-devel.i686  -y
cd $SOFT_DIR
wget http://nchc.dl.sourceforge.net/project/nicstat/nicstat-1.92.tar.gz
tar xf nicstat-1.92.tar.gz
cd nicstat-1.92
cp Makefile.Linux Makefile
make
[ $? -eq 0 ] || error  "\033[31m there are something to make \033[0m"
echo "alias nicstat='bash $SOFT_DIR/nicstat-1.92/nicstat.sh'" > /etc/profile.d/nicstat.sh
}
nicstat_ins