gmd20的个人空间

// 编程和生活

日志

关于我

widebright

文章分类

LOFTER精选

八招诀窍，教你实力撩妹 >

网易考拉推荐

linux的tc命令可以模拟网络按比例丢包，网络延时和网络包乱序瞬间丢包等

2014-11-14 10:41:56| 分类： linux相关 | 标签： |举报 |字号大中小订阅

下载LOFTER 我的照片书 |

来自：

Sometimes Kill -9 Isn't Enough

http://www.bravenewgeek.com/sometimes-kill-9-isnt-enough/

模拟网络环境随机丢包

$ iptables -A INPUT -m statistic --mode random --probability 0.1 -j DROP

$ iptables -A OUTPUT -m statistic --mode random --probability 0.1 -j DROP

模拟网络延时

tc qdisc add dev eth0 root netem delay 250ms loss 10% rate 1mbps

模拟网络瞬间丢包

tc qdisc add dev eth0 root netem delay 50ms 20ms

tc qdisc add dev eth0 root netem delay 50ms 20ms distribution normal

模拟网络包乱序

tc qdisc add dev eth0 root netem reorder 0.02 duplicate 0.05 corrupt 0.01

评论这张

转发至微博

阅读(488)| 评论(0)

推荐转载

历史上的今天

this.p={  m:2,
              b:2,
              loftPermalink:'',
              id:'fks_087070086082081075081095084071072087087075080085095065087',
              blogTitle:'linux的tc命令可以模拟网络按比例丢包，网络延时和网络包乱序瞬间丢包等',
              blogAbstract:'<div\><br\></div\><div\>来自：</div\><div\><h1 style=\"margin: 0px; padding: 0px; border: 0px; font-size: 1.571428571rem; vertical-align: baseline; clear: both; line-height: 1.2; font-weight: normal; color: rgb(68, 68, 68); font-family: \'Open Sans\', Helvetica, Arial, sans-serif;\"   \>Sometimes Kill -9 Isn\'t Enough</h1\></div\>http://www.bravenewgeek.com/sometimes-kill-9-isnt-enough/<wbr\><div\><br\></div\><div\><div\>模拟网络环境随机丢包</div\><div\><br\></div\><div\>$ iptables -A INPUT -m statistic --mode random --probability 0.1 -j DROP</div\><div\>$ iptables -A OUTPUT -m statistic --mode random --probability 0.1 -j DROP</div\><div\><br\></div\><div\>模拟网络延时</div\><div\> tc qdisc add dev eth0 root netem delay 250ms loss 10% rate 1mbps</div\><div\><br\></div\><div\><br\></div\><div\>模拟网络瞬间丢包</div\><div\>tc qdisc add dev eth0 root netem delay 50ms 20ms</div\></div\>',
              blogTag:'',
              blogUrl:'blog/static/1684392320141014104156771',
              isPublished:1,
              istop:false,
              type:0,
              modifyTime:0,
              publishTime:1415932916771,
              permalink:'blog/static/1684392320141014104156771',
              commentCount:0,
              mainCommentCount:0,
              recommendCount:0,
              bsrk:-100,
              publisherId:0,
              recomBlogHome:false,
              currentRecomBlog:false,
              attachmentsFileIds:[],
              vote:{},
              groupInfo:{},
              friendstatus:'none',
              followstatus:'unFollow',
              pubSucc:'',
              visitorProvince:'',
              visitorCity:'',
              visitorNewUser:false,
              postAddInfo:{},
              mset:'000',
              mcon:'',
              srk:-100,
              remindgoodnightblog:false,
              isBlackVisitor:false,
              isShowYodaoAd:false,
              hostIntro:'',
              hmcon:'0',
              selfRecomBlogCount:'0',
              lofter_single:'<iframe width="140" height="560" style="overflow:hidden;" src="http://www.lofter.com/mailEntry.do?blogad=1&blog" frameBorder="0"></iframe>'
            }

{list a as x}
    {if !!x}
    <div class="iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
      {if x.visitorName==visitor.userName}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        {if x.moveFrom=='wap'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/wapblog.html?frompersonalbloghome"><span title="来自网易手机博客" class="iblock wapIcon"> </span></a>
        {elseif x.moveFrom=='iphone'}
          <a class="noul pnt" target="_blank"><span title="来自iPhone客户端" class="iblock iphoneIcon"> </span></a>
        {elseif x.moveFrom=='android'}
          <a class="noul pnt" target="_blank"><span title="来自Android客户端" class="iblock androidIcon"> </span></a>
        {elseif x.moveFrom=='mobile'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/emsblog.html?frompersonalbloghome"><span title="来自网易短信写博" class="iblock wapIcon"> </span></a>
        {/if}
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
          ${fn(x.visitorNickname,8)|escape}
        </a>
      </div>
    </div>
    {/if}
    {/list}

<#--最新日志，群博日志--> <#--推荐日志-->

<p class="fc06">推荐过这篇日志的人：</p>
    <div>
      {list a as x}
      {if !!x}
      <div class="iblock nbw-fce nbw-f40">
        <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
        <img alt="${x.recommenderNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.recommenderName)}"/>
        </a>
        <div class="cwd thide">
          <a class="fc03 m2a" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
            ${fn(x.recommenderNickname,6)|escape}
          </a>
        </div>
      </div>
      {/if}
      {/list}
    </div>
    {if !!b&&b.length>0}
    <p  class="fc06">他们还推荐了：</p>
    <ul>
    {list b as y}
      {if !!y}
        <li class="rrb"><span class="iblock">·</span><a class="fc03 m2a" target="_blank" href="http://blog.163.com/${y.recommendBlogPermalink}/?from=blog/static/1684392320141014104156771">${y.recommendBlogTitle|escape}</a></li>
      {/if}
    {/list}
    </ul>
    {/if}

<#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇，下一篇--> <#-- 热度 -->

{list a as x}
    {if !!x}
    <div class="hotItem iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
      {if x.publisherUsername==visitor.userName}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
          ${fn(x.publisherNickname,8)|escape}
        </a>
      </div>
      <a class="f-myLikeIcons hottype {if x.type==1} js-liketype{elseif x.type==2} js-reblogtype{elseif x.type==3} js-sharetype{else}{/if}" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/"> </a>
    </div>
    {/if}
    {/list}

<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

页脚

我的照片书 - 博客风格 - 手机博客 - 下载LOFTER APP - 订阅此博客

gmd20的个人空间

导航

日志

linux的tc命令可以模拟网络按比例丢包，网络延时和网络包乱序瞬间丢包等

Sometimes Kill -9 Isn't Enough

历史上的今天

最近读者

热度

评论

页脚