As an update for google an anyone interested.<div><br></div><div>This is what I got back from Cisco TAC (I opened a case with both Juniper and Cisco)</div><div><br></div><div><p class="MsoNormal"><quote></p><p class="MsoNormal">
I
just got an analysis from a switching engineer and here's what we found:</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">The
9971 phone is sending TLV of Extended Power-Via-MDI TLV and Power Via MDI
TLV. Even though as per IEEE standards "An LLDPDU should contain no
more than one Power Via MDI TLV" which seems to be causing an issue
between the 9971 and Juniper switch. Also the 9971 should send a class of
3 (for 802.3af) and 4 (for 802.3at) but the 9971 is sending class 5 which is
not correct.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I'm
going to get in touch with the 9971 phone developers about this now.</p></div><div></quote></div><div><br></div><div>So a combination of sending Class 5 and two TLV's instead of 1 is what we're chasing right now. I personally think the Class 5 (which does not exist) is the problem.</div>
<div><br></div><div>So the ball is in Cisco TAC's court right now.<br><br><div class="gmail_quote">On Wed, Jan 18, 2012 at 11:35 AM, Mike King <span dir="ltr"><<a href="mailto:me@mpking.com">me@mpking.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I'm running 8.5.1 and we loaded the latest device pack on cisco's website the week of December 28th.<div>I've updated to firmware 9-2-3<br>
<div><br></div><div>I've narrowed it down to a LLDP-MED problem. I just need to figure out who's problem it is. I have a juniper switch, and apparently Juniper and Cisco are not agreeing on the LLDP packets.</div>
<div><br></div><div>From the phone, I'm getting TLV timeout</div><div>on the switch, i'm getting TLV discarded</div><div><br></div><div>I've opened a support case with Juniper, since it's actively making a decision, versus the phone that is just patiently waiting for a response.</div>
<div>That's not to say that the Phone might be sending a malformed request. I'm sure the first thing the Juniper TAC is going to have me do is a packet capture.</div><div><br></div><div>Fun times, wohoo.</div><span class="HOEnZb"><font color="#888888"><div>
<br></div></font></span><div><span class="HOEnZb"><font color="#888888"> Mike</font></span><div><div class="h5"><br><br><div class="gmail_quote">On Wed, Jan 18, 2012 at 10:25 AM, Ryan Ratliff <span dir="ltr"><<a href="mailto:rratliff@cisco.com" target="_blank">rratliff@cisco.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">What CUCM are you running? The parameter Adam mentioned is called "Power Negotiation" and should be present on the phone page in CCMAdmin.<div>
<br><div><blockquote type="cite">You should enable the Power Negotiation feature when connected to a
switch that supports power negotiation. However, if a switch does not
support power negotiation, then you should disable the Power Negotiation
feature before you power up accessories over PoE. When the Power
Negotiation feature is disabled, the phone can power up accessories up
to 12.9W </blockquote><span><font color="#888888"><br><div>
<div style="font-family:Helvetica">-Ryan</div>
</div></font></span><div><div>
<br><div><div>On Jan 17, 2012, at 5:20 PM, Mike King wrote:</div><br>I'm currently running sip9971.9-2-2<div><br></div><div>But I'm not sure how that helps me. :-)<br><br><div class="gmail_quote">On Tue, Jan 17, 2012 at 4:18 PM, Adam Frankel (afrankel) <span dir="ltr"><<a href="mailto:afrankel@cisco.com" target="_blank">afrankel@cisco.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="font-family:Arial;font-size:13px" bgcolor="#FFFFFF" text="#000000">
<div style="font-family:Arial;font-size:13px"><font face="Arial">With
the fix for CSCtl08010, you should be able to disable power
negotiation at the device/common/enterprise level in CUCM.</font><br>
<br>
You also need 9.1(1) or newer firmware.<br>
<br>
Adam<br>
<br>
<br>
<span>
<hr><font style="font-size:x-small" face="Tahoma"><b>From:</b>
Mike King <a href="mailto:me@mpking.com" target="_blank"><me@mpking.com></a><br>
<b>Sent:</b> Tue, Jan 17, 2012 2:49:36 PM<div><br>
<b>To:</b> Cisco VoIPoE List
<a href="mailto:cisco-voip@puck.nether.net" target="_blank"><cisco-voip@puck.nether.net></a><br>
</div><b>CC:</b>
<br><div>
<b>Subject:</b> [cisco-voip] 802.3at and the 9971 /
VXC 2112<br>
</div></font><br>
</span>
<blockquote style="border:medium none!important;padding-left:0px!important;padding-right:0px!important;margin-left:0px!important;margin-right:0px!important;font-family:serif" type="cite"><div><div>We have a 9971 phone with the VXC 2112 backpack, and
we've connected it to one of our Juniper switches that provide
802.3at power.
<div><br>
</div>
<div>However the backpack (or the camera) does not appear to
work with it. (Works fine with the power cube)</div>
<div><br>
</div>
<div>Is there anything we have to do to enable PoE Plus
(802.3at)? I know the switch is providing it. (Its
registering it as a class 4 device, but the phone is only
drawing 7.4W, out of a Max of 30W)</div>
<div><br>
</div>
<div>Mike</div>
<br>
<fieldset></fieldset>
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