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<div>Yes. Tried that also and it failed. </div>
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<div>I checked the OS admin guide or the release notes late last night and it says - Caution. If you go to an unrestricted release you will not be able to go back via upgrade or a fresh install. Does this mean that there's something that is copied to the phone
firmware that stops it from ever going back to a restricted release even on new hardware?</div>
<div><br>
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<div><br>
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<div>Regards,</div>
<div>Dana Tong</div>
<br>
<div id="htc_header">----- Reply message -----<br>
From: "Travis L. Dennis" <tdennis@DataSourcePro.com><br>
To: "Dana Tong" <Dana_Tong@bridgepoint.com.au>, "cisco-voip@puck.nether.net" <cisco-voip@puck.nether.net><br>
Subject: [cisco-VoIP] Odd CUCM IP Phone Registration behavior during Migration<br>
Date: Sun, Jul 28, 2013 5:09 AM</div>
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<p class="MsoNormal"><span style="color:#1F497D">Have you tried resetting one of the problematic 7940 pones to factory default and let it try to register?</span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
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<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Dana Tong<br>
<b>Sent:</b> Saturday, July 27, 2013 10:37 AM<br>
<b>To:</b> cisco-voip@puck.nether.net (cisco-voip@puck.nether.net)<br>
<b>Subject:</b> [cisco-voip] Odd CUCM IP Phone Registration behaviour during Migration</p>
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<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-AU">Good morning all,</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Weird one tonight.</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Customer has a CUCM version 7.1(5) with approx. 900 handsets of 7912’s, 7940’s etc.</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">So I built up a new CUCM version 9.1(1) on new UCS hardware (vmware) and everything looks fine. I cleaned up all the data an implemented some of the intelligent call routing features in newer CUCM etc. Tested with some
brand new 7942’s out of the box and all is good.</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Tonight I get onsite to perform the migration. I start with the first site. ~110 phones. Update the DHCP option 150 and reset the phones.</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Now about 40 of the ~110 phones come across and register to the new CUCM ok. This leaves some 70 phones reporting configuring IP. The DHCP is on the router, and the router connected to the LAN via a dot1q trunk.
</span></p>
<p class="MsoNormal"><span lang="EN-AU">The registered phones are all of the 7912’s and some 7940’s.
</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Two of the phones close by are 7940’s. One is registered and one is not. They both have the same firmware. They are both on the same access switch. The unregistered phone does not have an IP address. However the router’s
ARP and DHCP has an IP address in its database. I cleared the ARP, and cleared the DHCP bindings. Restart the phone. I see the DHCP request in the debugs and an address get assigned but the phone still doesn’t get an IP.</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">So I manually set an IP address on the phone. It still won’t register. I set a continuous ping to the phone and I get maybe 2% ping response. With some response times up in the 190ms range. Weird. This is all LAN based.
Check spanning tree and that’s ok. The TAC have investigated and they are stumped. They ask me to log another fault for the switching guys. A PC behind the phone in the voice VLAN also has perfect pings to the new CUCM. So it seems phone related.</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Anyways so I do some more troubleshooting. Roll back the DHCP option 150 and reset all the phones. They all re-register with the old cluster no problems.
</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">I configure a new VLAN on the switches and new sub-interface on the router. Configure a new DHCP scope for the new range and configure this phone to use that new VLAN. At this point I haven’t added the new subnet to BGP
to this subnet cannot see the Data Centre VLANs.</span></p>
<p class="MsoNormal"><span lang="EN-AU">The phone comes up in the test VLAN and gets an IP address ok. I can ping the phone and have no loss.</span></p>
<p class="MsoNormal"><span lang="EN-AU">I configure the BGP routing and now the new subnet is advertised into the network and I can reach the CUCM.
</span></p>
<p class="MsoNormal"><span lang="EN-AU">Immediately, the phone starts dropping pings and is showing the same sporadic response and packet loss.</span></p>
<p class="MsoNormal"><span lang="EN-AU">I remove the subnet from BGP and now the phone is 100% responsive again. What the???</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">So it seems there is an issue when the phone is trying to register to the new CUCM. I’ve just checked the old cluster and noticed that this system is running 7.1(5) UNRESTRICTED. So the last upgrade which was done for
this customer, it seems someone had installed the UNRESTRICTED version. Is this affecting my migration? The new cluster is a fresh build of UCM 9.1 straight on to new UCS hardware. So it’s a standard restricted ISO.</span></p>
<p class="MsoNormal"><span lang="EN-AU">I know that once you go UNRESTRICTED you cannot go back. However this was not an upgrade or backup/ restore. Remember this is a fresh build.</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Anyways I’m stumped. Can you guys think of anything??? It seems to be related the 7940 series phones. We tried another site and all of the 7912’s migrated fine but the 7940’s didn’t. But then again there were “some” 7940’s
in the HQ site which did work. </span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU">Thanks in advance.</span></p>
<p class="MsoNormal"><span lang="EN-AU"><br>
Cheers</span></p>
<p class="MsoNormal"><span lang="EN-AU">Dana</span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
<p class="MsoNormal"><span lang="EN-AU"> </span></p>
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