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Controling broadcast/multicast storms

daemon@ATHENA.MIT.EDU (Joseph M. Karam)
Tue Feb 9 21:30:22 2016

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Message-ID:  <DFF9F14AF14E6641A829301CD3D2EF3C8D5111E5@CSGMBX200W.pu.win.princeton.edu>
Date:         Wed, 10 Feb 2016 02:29:16 +0000
Reply-To: Resnet Forum <RESNET-L@LISTSERV.ND.EDU>
From: "Joseph M. Karam" <jkaram@Princeton.EDU>
To: RESNET-L@LISTSERV.ND.EDU

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Hi All,

In the past year we have been hit with a multicast storm and a broadcast st=
orm that took out large portions of our network.   We are looking at option=
s to limiting the damage of one of these storms caused by a misbehaving cli=
ent.


1.      Has anyone implemented storm controls on their building switch port=
s and/or their core ports?

2.      Are there any issues to be aware of with devices having problems wi=
th these controls in place?

3.      Are there best practices on what thresholds to put in place (either=
 based on percentage of bandwidth or packets/second)?

Any recommendations would be appreciated.  Thank you,

Joe Karam


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<p class=3D"MsoNormal">Hi All,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">In the past year we have been hit with a multicast s=
torm and a broadcast storm that took out large portions of our network.&nbs=
p; &nbsp;We are looking at options to limiting the damage of one of these s=
torms caused by a misbehaving client.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">1.<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]>Has anyone implemented storm controls on their buil=
ding switch ports and/or their core ports?<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">2.<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]>Are there any issues to be aware of with devices ha=
ving problems with these controls in place?<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">3.<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]>Are there best practices on what thresholds to put =
in place (either based on percentage of bandwidth or packets/second)?<o:p><=
/o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Any recommendations would be appreciated.&nbsp; Than=
k you,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Joe Karam<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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