If I remember my port channel correctly,<div>(reference:
<a href="http://www.cisco.com/en/US/tech/tk389/tk213/technologies_tech_note09186a0080094714.shtml">http://www.cisco.com/en/US/tech/tk389/tk213/technologies_tech_note09186a0080094714.shtml</a> )</div><div><br><div><br></div>
<div><p class="MsoNormal" style="margin-right:0in;margin-left:0in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial">The load-balancing method can be:</span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span class="SpellE"><span lang="EN-US" style="font-size:10pt;font-family:Arial">src-mac</span></span><span lang="EN-US" style="font-size:10pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span class="SpellE"><span lang="EN-US" style="font-size:10pt;font-family:Arial">dst-mac</span></span><span lang="EN-US" style="font-size:10pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span class="SpellE"><span lang="EN-US" style="font-size:10pt;font-family:Arial">src-dst-mac</span></span><span lang="EN-US" style="font-size:10pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span class="SpellE"><span lang="EN-US" style="font-size:10pt;font-family:Arial">src-ip</span></span><span lang="EN-US" style="font-size:10pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span class="SpellE"><span lang="EN-US" style="font-size:10pt;font-family:Arial">dst-ip</span></span><span lang="EN-US" style="font-size:10pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span class="SpellE"><span lang="EN-US" style="font-size:10pt;font-family:Arial">src-dst-ip</span></span><span lang="EN-US" style="font-size:10pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="FR" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span lang="FR" style="font-size:10pt;font-family:Arial">src-port</span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="FR" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span lang="FR" style="font-size:10pt;font-family:Arial">dst-port</span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="FR" style="font-size:10pt;font-family:Arial">-<span style="font-family:'Times New Roman';font-size:7pt"> </span></span><span lang="FR" style="font-size:10pt;font-family:Arial">src-dst-port</span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="FR" style="font-size:10pt;font-family:Arial"><br></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="FR" style="font-size:10pt;font-family:Arial">Different equpiment defaults to different things, but it's easy to see how either source IP or Source MAC could force all traffic over one link, and return traffic over another.</span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="FR" style="font-size:10pt;font-family:Arial"><br></span></p>
<p class="MsoNormal" style="margin-right:0in;margin-left:0.5in;font-size:medium;font-family:'Times New Roman';margin-top:0in;margin-bottom:0.0001pt"><span lang="FR" style="font-size:10pt;font-family:Arial"><br></span></p>
</div><div><br><div class="gmail_quote">On Thu, Feb 9, 2012 at 11:57 AM, Bob Zanett (AM) <span dir="ltr"><<a href="mailto:bob.zanett@dimensiondata.com">bob.zanett@dimensiondata.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Interesting. You would have to investigate how traffic was routing through the port channels to determine exactly why it acted as it did. Most likely traffic was interacting via different paths.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Glad you found the solution.<u></u><u></u></span></p>
<div class="im"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bob Zanett<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Technical Services Architect<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
</div><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""> Jonathan Charles [mailto:<a href="mailto:jonvoip@gmail.com" target="_blank">jonvoip@gmail.com</a>] <br>
<b>Sent:</b> Thursday, February 09, 2012 10:43 AM<br><b>To:</b> Wes Sisk<br><b>Cc:</b> Mike King; <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>; Bob Zanett (AM)</span></p><div>
<div class="h5"><br><b>Subject:</b> Re: [cisco-voip] Calls to internal numbers fail<u></u><u></u></div></div><p></p><div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">It turned out one the members of a port channel was suspended (access on one side, dot1q on the other). When I fixed that the phones were able to call...<u></u><u></u></p>
<div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Still doesn't make sense why CCM was able to make the phone ring, but others couldn't connect an audio stream....<u></u><u></u></p></div>
<div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal" style="margin-bottom:12.0pt">Jonathan<u></u><u></u></p>
<div><p class="MsoNormal">On Sun, Feb 5, 2012 at 7:20 PM, Wes Sisk <<a href="mailto:wsisk@cisco.com" target="_blank">wsisk@cisco.com</a>> wrote:<u></u><u></u></p><div><p class="MsoNormal">I worked an interesting one of these recently. Proxy arp caused UCCX install to fail because the router responded to ARP request.<u></u><u></u></p>
<div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Proxy arp is only supposed to trigger for an ARP request for an IP outside the local subnet. After careful reading and clearing my mental cobwebs on subnetting this was indeed the case. In that case the deployment overlaid two IP subnets onto a single L2 domain. <u></u><u></u></p>
</div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">What were the IPs and subnets in your situation?<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">
Regards,<u></u><u></u></p></div><div><p class="MsoNormal">Wes<u></u><u></u></p></div><div><div><div><p class="MsoNormal"><u></u> <u></u></p><div><div><p class="MsoNormal">On Feb 5, 2012, at 5:19 PM, Jonathan Charles wrote:<u></u><u></u></p>
</div><p class="MsoNormal"><br>I have too, the culprit is proxy arp... the gateway here is a Cisco 4510R+E<u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div>
<div><p class="MsoNormal" style="margin-bottom:12.0pt">J<u></u><u></u></p><div><p class="MsoNormal">On Fri, Feb 3, 2012 at 8:16 PM, Mike King <<a href="mailto:me@mpking.com" target="_blank">me@mpking.com</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal">What's the default gateway on the subnet?<u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">I've seen ASA's do weird things, even to L2 networks.<u></u><u></u></p>
<div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p><div><p class="MsoNormal">On Fri, Feb 3, 2012 at 4:59 PM, Jonathan Charles <<a href="mailto:jonvoip@gmail.com" target="_blank">jonvoip@gmail.com</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal">All phones are on the same subnet.<u></u><u></u></p><div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p><div><p class="MsoNormal">On Fri, Feb 3, 2012 at 3:08 PM, Bob Zanett (AM) <<a href="mailto:bob.zanett@dimensiondata.com" target="_blank">bob.zanett@dimensiondata.com</a>> wrote:<u></u><u></u></p>
<div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">This could be a routing issue.</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Can your phones see each other at the IP level? CUCM is what controls call setup/teardown and sends messages to ring your phone. So in theory, if CUCM sees both IP subnets but the subnet A phones can’t see subnet B phones’ IPs. Phone from A calling phone in B, phone will ring but not be able to be answered. It will drop. </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Cheers -</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bob Zanett</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Technical Services Architect</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Dimension Data Americas</span><u></u><u></u></p></div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
<div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><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""> <a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a> [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>] <b>On Behalf Of </b>Ted Nugent<br>
<b>Sent:</b> Friday, February 03, 2012 2:17 PM<br><b>To:</b> Jonathan Charles</span><u></u><u></u></p><div><p class="MsoNormal"><br><b>Cc:</b> <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b> Re: [cisco-voip] Calls to internal numbers fail<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div></div></div><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal" style="margin-bottom:12.0pt">
<u></u> <u></u></p><div><div><p class="MsoNormal"><br>Guess I missed that in your orginal post!<u></u><u></u></p></div></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><div><div><p class="MsoNormal">On Fri, Feb 3, 2012 at 3:00 PM, Jonathan Charles <<a href="mailto:jonvoip@gmail.com" target="_blank">jonvoip@gmail.com</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal">Replication to where? This is a CUCUMBEr<u></u><u></u></p><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal"><span style="color:#888888"> </span><u></u><u></u></p></div><div>
<p class="MsoNormal"><span style="color:#888888">Jonathan</span><u></u><u></u></p><div><div><p class="MsoNormal" style="margin-bottom:12.0pt"> <u></u><u></u></p><div><p class="MsoNormal">On Fri, Feb 3, 2012 at 12:23 PM, Ted Nugent <<a href="mailto:tednugent73@gmail.com" target="_blank">tednugent73@gmail.com</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal">I'd be looking at replication issues first off<u></u><u></u></p><div><div><p class="MsoNormal" style="margin-bottom:12.0pt"> <u></u><u></u></p><div><p class="MsoNormal">On Fri, Feb 3, 2012 at 12:51 PM, Jonathan Charles <<a href="mailto:jonvoip@gmail.com" target="_blank">jonvoip@gmail.com</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Already did that, and deleted all.<u></u><u></u></p><div><p class="MsoNormal">On Fri, Feb 3, 2012 at 11:45 AM, A A <<a href="mailto:cciefob@gmail.com" target="_blank">cciefob@gmail.com</a>> wrote:<u></u><u></u></p>
<p>Check route plan report and filter by unassigned DN and delete them <u></u><u></u></p><div><div><div><div><div><p class="MsoNormal">On Feb 3, 2012 10:24 AM, "Jonathan Charles" <<a href="mailto:jonvoip@gmail.com" target="_blank">jonvoip@gmail.com</a>> wrote:<u></u><u></u></p>
</div></div></div></div><blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt"><div><div><div><div><p class="MsoNormal">
We have phones at a site that cannot call eache other.<u></u><u></u></p><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">The phones are in the phones_pt and have a css of internal_css. Internal_css has phones_pt as the first partition in its css.<u></u><u></u></p>
</div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">Calls ring once and drop.<u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">CCM version is <a href="tel:7.1.5.33900-10" target="_blank">7.1.5.33900-10</a><u></u><u></u></p>
</div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">Just an FYI, calls from the gateway, which has a CSS of gateway_css, and also has the phones_pt as its first pt, work fine.<u></u><u></u></p>
</div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">We have checked for duplicate translations, route patterns and have found nothing.<u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p>
</div><div><p class="MsoNormal">Any ideas?<u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">Jonathan<u></u><u></u></p></div>
<div><p class="MsoNormal"> <u></u><u></u></p></div><p class="MsoNormal"> <u></u><u></u></p></div></div></div></div><div><p class="MsoNormal" style="margin-bottom:12.0pt">_______________________________________________<br>
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</div></blockquote></div></div><p class="MsoNormal" style="margin-bottom:12.0pt"><br><br>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br>
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<u></u><u></u></p></div></div></div></div></div></div><p class="MsoNormal"><br><br><br><span style="color:white">itevomcid</span> <u></u><u></u></p></div></div></div><p class="MsoNormal"><u></u> <u></u></p></div></div><p class="MsoNormal" style="margin-bottom:12.0pt">
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</div><p class="MsoNormal"><u></u> <u></u></p></div></div></div></div></div></blockquote></div><br></div></div>