cetnos7使用iproute进行网卡限速 - sky_cheng

时间：2024-03-12 13:37:13
cetnos7使用iproute进行网卡限速

一、安装iproute

[root@localhost ~]# yum install iproute -y
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * centos-sclo-rh: mirrors.bupt.edu.cn
 * centos-sclo-sclo: mirrors.bupt.edu.cn
 * epel: mirrors.bfsu.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package iproute.x86_64 0:4.11.0-14.el7 will be updated
---> Package iproute.x86_64 0:4.11.0-30.el7 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

====================================================================================================================================
 Package                       Arch                         Version                                Repository                  Size
====================================================================================================================================
Updating:
 iproute                       x86_64                       4.11.0-30.el7                          base                       805 k

Transaction Summary
====================================================================================================================================
Upgrade  1 Package

Total download size: 805 k
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
iproute-4.11.0-30.el7.x86_64.rpm                                                                             | 805 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Updating   : iproute-4.11.0-30.el7.x86_64                                                                                     1/2 
  Cleanup    : iproute-4.11.0-14.el7.x86_64                                                                                     2/2 
  Verifying  : iproute-4.11.0-30.el7.x86_64                                                                                     1/2 
  Verifying  : iproute-4.11.0-14.el7.x86_64                                                                                     2/2 

Updated:
  iproute.x86_64 0:4.11.0-30.el7                                                                                                    

Complete!
[root@localhost ~]#

二、限制em1网卡的带宽为100kbit/s ,峰值为200kbit/s

[root@localhost ~]# /sbin/tc qdisc add dev em1 root tbf rate 100kbit latency 50ms burst 200kbit

使用sz进行测试

[root@localhost src]# sz v1.5-dev20.tar.gz
rz
Starting zmodem transfer.  Press Ctrl+C to cancel.
Transferring v1.5-dev20.tar.gz...
   17%     199 KB      11 KB/sec    00:01:23 ETA   0 Errors

显示下载速度为11KByte/s 换算为kbit乘以8=88kbit/s差不多为100kbit/s

三、删除限速

[root@localhost ~]# /sbin/tc qdisc del dev em1 root tbf rate 100kbit latency 50ms burst 200kbit

再次测试

[root@localhost src]# sz v1.5-dev20.tar.gz
rz
Starting zmodem transfer.  Press Ctrl+C to cancel.
Transferring v1.5-dev20.tar.gz...
  100%    1177 KB    1177 KB/sec    00:00:01       0 Errors  

[root@localhost src]#

速度变为1177*8=9416kbit

设置em1网卡带宽为3Mbit=3072kbit

[root@localhost src]# /sbin/tc qdisc add dev em1 root tbf rate 3072kbit latency 50ms burst 3072kbit

下载测试

[root@localhost src]# sz Python-3.7.0.tar.xz 
rz
Starting zmodem transfer.  Press Ctrl+C to cancel.
Transferring Python-3.7.0.tar.xz...
   55%    9038 KB     347 KB/sec    00:00:21 ETA   0 Errors

差不多为3000kbit

 

posted on 2021-12-03 14:58  sky_cheng  阅读(9)  评论(0)  编辑  收藏  举报

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