<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Frederik,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If your server is considered as a Router, that means that it is
advertising on multicast address : </span>224.0.0.2<span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>So do a TCPDUMP to check if so and verify if you don’t have a
router feature enabled.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Regards, Fabian.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
extreme-nsp-bounces@puck.nether.net
[mailto:extreme-nsp-bounces@puck.nether.net] <b>On Behalf Of </b>F J<br>
<b>Sent:</b> mardi 16 septembre 2008 12:26<br>
<b>To:</b> extreme-nsp@puck.nether.net<br>
<b>Subject:</b> Re: [e-nsp] Summit450X - strange IGMP-snooping on port
connected to Linux server?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Hi,<br>
Thanks for your answer. But isn't the BCR and CBSR config only important if <br>
you are running the Switch in layer3?<br>
<br>
I am only using it as a layer2 switch.<br>
<br>
I still think that it is strange that the switch is considering this
server as being<br>
a "router" when running the show commands. There must be some critera
for<br>
the switch to do that or? <br>
<br>
More info about this Linux server:<br>
My Linux server is running JBoss and I see some IGMP-join packages to going to<br>
224.0.0.75 and 228.30.4.76 when starting up.<br>
<br>
Best Regards<br>
/// Fredrik<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'><br>
Date: Tue, 16 Sep 2008 11:52:02 +0300<br>
From: napstertash@gmail.com<br>
To: ripprapp@hotmail.com<br>
Subject: Re: [e-nsp] Summit450X - strange IGMP-snooping on port connected to
Linux server?<br>
CC: extreme-nsp@puck.nether.net<br>
<br>
<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>Hello FJ,<o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>On
Tue, Sep 16, 2008 at 8:21 AM, F J <<a href="mailto:ripprapp@hotmail.com">ripprapp@hotmail.com</a>>
wrote:<o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br>
Hi,<br>
I am using a Summit450X as a layer2 switch in my multicast network. <br>
I am using PIM SM on my routers and I am running IGMP snooping on my layer2
switches.<br>
<br>
On this 450X-switch I have a HP server runnning Linux connected to port 21.<br>
<br>
When running some show commands (see below) it looks like the switch thinks
that the <br>
server is a router? And that it should get all Multicast streams? <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>You
might have to play a lot more with the priorities so you figure this out, I
would think. <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br>
<br>
Can anyone explain what is causing this? <o:p></o:p></span></p>
</div>
</blockquote>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>I
think the answer might be between the configuration settings you have got for
both the BSR and CBSR.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br>
Is my switch misconfigured or is my server doing something strange?<br>
What is the criteria for being listed as a router by the switch?<br>
<br>
Port 45 is connected to the closest router.<br>
<br>
Any ideas of what could be causing this kind of behaviour is appreciated!<o:p></o:p></span></p>
</div>
</blockquote>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>If
you don't want this box to participate the the multicast traffic then
I would suggest you remove that port form the selected list, OR make the
specified port that you want to be the BSR by using the priorities.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Hope
it helps.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Regards<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br>
<br>
Best Regards<br>
Fredrik<br>
<br>
X450a-48tdc.19 # sh igmp snooping <br>
Vlan
Vid Port #Senders #Receivers <b>Router </b>Enable<br>
-------------------------------------------------------------- <br>
SN102
164
6
Yes <br>
19
2 No<br>
20
5 No<br>
<b>21
3 Yes</b><br>
45
0 Yes<br>
<br>
VLAN SN102 (164) Snooping=Enabled
<br>
Group
Sender Age <br>
<a href="http://239.1.1.1/" target="_blank">239.1.1.1</a>
<a href="http://10.21.65.5/" target="_blank">10.21.65.5</a>
14 <br>
<a href="http://239.1.1.2/" target="_blank">239.1.1.2</a>
<a href="http://10.21.65.5/" target="_blank">10.21.65.5</a>
10 <br>
<a href="http://228.0.198.75/" target="_blank">228.0.198.75</a>
<a href="http://10.21.64.4/" target="_blank">10.21.64.4</a>
25 <br>
<a href="http://228.0.198.76/" target="_blank">228.0.198.76</a>
<a href="http://10.21.64.4/" target="_blank">10.21.64.4</a>
13 <br>
<a href="http://228.0.198.77/" target="_blank">228.0.198.77</a>
<a href="http://10.21.64.4/" target="_blank">10.21.64.4</a>
13 <br>
5 Incoming multicast streams <br>
<br>
Port
Host
Subscribed Age <br>
19 <a href="http://10.21.64.2/"
target="_blank">10.21.64.2</a> <a
href="http://225.10.10.10/" target="_blank">225.10.10.10</a>
66 <br>
19 <a href="http://10.21.64.2/"
target="_blank">10.21.64.2</a> <a
href="http://226.10.10.10/" target="_blank">226.10.10.10</a>
63 <br>
20 <a href="http://10.21.64.3/"
target="_blank">10.21.64.3</a> <a
href="http://224.2.127.254/" target="_blank">224.2.127.254</a>
67 <br>
20 <a href="http://10.21.64.3/"
target="_blank">10.21.64.3</a> <a
href="http://224.2.127.255/" target="_blank">224.2.127.255</a>
69 <br>
20 <a href="http://10.21.64.3/"
target="_blank">10.21.64.3</a> <a
href="http://234.5.6.7/" target="_blank">234.5.6.7</a>
63 <br>
20 <a href="http://10.21.64.3/"
target="_blank">10.21.64.3</a> <a
href="http://239.1.1.1/" target="_blank">239.1.1.1</a>
64 <br>
20 <a href="http://10.21.64.3/"
target="_blank">10.21.64.3</a> <a
href="http://239.1.1.2/" target="_blank">239.1.1.2</a>
61 <br>
21 <a href="http://10.21.64.4/"
target="_blank">10.21.64.4</a> <a
href="http://228.0.198.75/" target="_blank">228.0.198.75</a>
68 <br>
21 <a href="http://10.21.64.4/"
target="_blank">10.21.64.4</a> <a
href="http://228.0.198.76/" target="_blank">228.0.198.76</a>
63 <br>
21 <a href="http://10.21.64.4/"
target="_blank">10.21.64.4</a> <a
href="http://228.0.198.77/" target="_blank">228.0.198.77</a>
60 <br>
<b> 21 <a href="http://10.21.64.4/"
target="_blank">10.21.64.4</a> All
Groups 69 </b><br>
45 <a href="http://10.21.64.1/"
target="_blank">10.21.64.1</a> All
Groups
1 <o:p></o:p></span></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Connect
to the next generation of MSN Messenger <a
href="http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=wlmailtagline"
target="_blank">Get it now! </a><o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Explore
the seven wonders of the world <a
href="http://search.msn.com/results.aspx?q=7+wonders+world&mkt=en-US&form=QBRE"
target="_blank">Learn more!</a><o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br>
_______________________________________________<br>
extreme-nsp mailing list<br>
<a href="mailto:extreme-nsp@puck.nether.net">extreme-nsp@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/extreme-nsp" target="_blank">https://puck.nether.net/mailman/listinfo/extreme-nsp</a><o:p></o:p></span></p>
</blockquote>
</div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br>
<br clear=all>
<br>
-- <br>
Ronnie Tash<br>
---------<br>
A: Because we read from top to bottom, left to right.<br>
Q: Why should i start my reply below the quoted text?<br>
- -- <a href="http://www.i-hate-computers.demon.co.uk/" target="_blank">http://www.i-hate-computers.demon.co.uk/</a><br>
----------------------------------------------<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Connect
to the next generation of MSN Messenger <a
href="http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=wlmailtagline"
target="_new">Get it now! </a><o:p></o:p></span></p>
</div>
</body>
</html>