<div dir="ltr">Hello all,<div><br></div><div>Sorry to take you back guys, Am wondering how you can enable the IGMP on a layer 2 switch without preparing the switch for any routing and hence having the switch at layer 3.</div>
<div><br></div><div>Because the way I understand this you can't enable igmp OR ipmcforwarding without having ipforwarding enabled.</div><div><br></div><div>If you have some good results with the ethereal then you can stop the igmp service OR deman of the unix server.</div>
<div><br></div><div>Regards <br><br><div class="gmail_quote">On Tue, Sep 16, 2008 at 3:13 PM, Mike Louis <span dir="ltr"><<a href="mailto:MLouis@nwnit.com">MLouis@nwnit.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>
<div dir="ltr"><font face="Tahoma" color="#000000" size="2">Can you disable IGMP on the server? is it going to need to receive MC streams itself or just send them?</font></div>
<div style="direction:ltr">
<hr>
<font face="Tahoma" size="2"><b>From:</b> <a href="mailto:extreme-nsp-bounces@puck.nether.net" target="_blank">extreme-nsp-bounces@puck.nether.net</a> [<a href="mailto:extreme-nsp-bounces@puck.nether.net" target="_blank">extreme-nsp-bounces@puck.nether.net</a>] On Behalf Of F J [<a href="mailto:ripprapp@hotmail.com" target="_blank">ripprapp@hotmail.com</a>]<br>
<b>Sent:</b> Tuesday, September 16, 2008 6:25 AM<br>
<b>To:</b> <a href="mailto:extreme-nsp@puck.nether.net" target="_blank">extreme-nsp@puck.nether.net</a><div><div></div><div class="Wj3C7c"><br>
<b>Subject:</b> Re: [e-nsp] Summit450X - strange IGMP-snooping on port connected to Linux server?<br>
</div></div></font><br>
</div><div><div></div><div class="Wj3C7c">
<div></div>
<div>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>
<a href="http://224.0.0.75" target="_blank">224.0.0.75</a> and <a href="http://228.30.4.76" target="_blank">228.30.4.76</a> when starting up.<br>
<br>
Best Regards<br>
/// Fredrik<br>
<br>
<br>
<br>
<br>
<hr>
<br>
Date: Tue, 16 Sep 2008 11:52:02 +0300<br>
From: <a href="mailto:napstertash@gmail.com" target="_blank">napstertash@gmail.com</a><br>
To: <a href="mailto:ripprapp@hotmail.com" target="_blank">ripprapp@hotmail.com</a><br>
Subject: Re: [e-nsp] Summit450X - strange IGMP-snooping on port connected to Linux server?<br>
CC: <a href="mailto:extreme-nsp@puck.nether.net" target="_blank">extreme-nsp@puck.nether.net</a><br>
<br>
<br>
<div dir="ltr">Hello FJ,<br>
<br>
<div>On Tue, Sep 16, 2008 at 8:21 AM, F J <span dir="ltr">
<<a href="mailto:ripprapp@hotmail.com" target="_blank">ripprapp@hotmail.com</a>></span> wrote:<br>
<blockquote style="padding-left:1ex;border-left:#ccc 1px solid">
<div><br>
<span>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? </span></div>
</blockquote>
<div><br>
</div>
<div>You might have to play a lot more with the priorities so you figure this out, I would think. </div>
<div> </div>
<blockquote style="padding-left:1ex;border-left:#ccc 1px solid">
<div><span><br>
</span><span></span><span><br>
Can anyone explain what is causing this? </span></div>
</blockquote>
<div><br>
</div>
<div>I think the answer might be between the configuration settings you have got for both the BSR and CBSR.</div>
<div> </div>
<blockquote style="padding-left:1ex;border-left:#ccc 1px solid">
<div><span><br>
Is my switch misconfigured or is my server doing something strange?<br>
</span><span>What is the criteria for being listed as a router by the switch?</span><br>
<span><br>
Port 45 is connected to the closest router.<br>
<br>
Any ideas of what could be causing this kind of behaviour is appreciated!</span></div>
</blockquote>
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>Hope it helps.</div>
<div><br>
</div>
<div>Regards</div>
<div> </div>
<blockquote style="padding-left:1ex;border-left:#ccc 1px solid">
<div><span><br>
<br>
Best Regards<br>
Fredrik<br>
<br>
</span><span>X450a-48tdc.19 # sh igmp snooping <br>
Vlan Vid Port #Senders #Receivers <span style="font-weight:bold">
Router </span>Enable<br>
-------------------------------------------------------------- <br>
SN102 164 6 Yes <br>
19 2 No<br>
20 5 No<br>
<span style="font-weight:bold">21 3 Yes</span><br>
45 0 Yes</span><br>
<span><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>
<span style="font-weight:bold"> 21 <a href="http://10.21.64.4/" target="_blank">
10.21.64.4</a> All Groups 69 </span><br>
45 <a href="http://10.21.64.1/" target="_blank">10.21.64.1</a> All Groups 1
<br>
<div><br>
<b><br>
</b></div>
</span>
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