<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<base href="x-msg://1130/"><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 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:0in;
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.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.apple-style-span
{mso-style-name:apple-style-span;}
span.apple-converted-space
{mso-style-name:apple-converted-space;}
span.EmailStyle21
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:70.85pt 85.05pt 70.85pt 85.05pt;}
div.WordSection1
{page:WordSection1;}
--></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="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Only problem with that is every other request will fail if one of the EM nodes is down. DNS isn’t intelligent enough to know when a server is down.<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 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""> cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>ROZA, Ariel<br>
<b>Sent:</b> Friday, July 22, 2011 2:49 PM<br>
<b>To:</b> stephen.welsh@unifiedfx.com; Bill Riley<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Extension Mobility Service URL<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Another, simpler, way is to us DNS round robin, setting the EM URL to a hostname instead of an IP address.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The DNS Server should then have two A records with the same name pointing to both subscribers´s IP addresses.<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">Ariel.<o:p></o:p></span></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""> cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>stephen.welsh@unifiedfx.com<br>
<b>Sent:</b> viernes, 22 de julio de 2011 09:26 a.m.<br>
<b>To:</b> Bill Riley<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Extension Mobility Service URL<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="ES-AR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="ES-AR">I've seen some people create two Extension Mobility Service URL's and subscribed both services to all phones i.e.:<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="ES-AR"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR">Primary Login Service<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR">Backup Login Service<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR">Cuts on the cost/complexity of a load balancer (the best solution), but does require the user to engage the back-up service manually.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR">Thanks<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR">Stephen<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="ES-AR"><o:p> </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span lang="ES-AR">On 22 Jul 2011, at 13:11, Bill Riley wrote:<o:p></o:p></span></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="ES-AR"><o:p> </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You need to use a hardware load balancer and point the URL to the load balancer IP.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
</div>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;border-width:initial;border-color:initial">
<div>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> </span></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><a href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a><span class="apple-converted-space"> </span>[mailto:cisco-voip-bounces@puck.nether.net]<span class="apple-converted-space"> </span><b>On
Behalf Of<span class="apple-converted-space"> </span></b>cips<br>
<b>Sent:</b><span class="apple-converted-space"> </span>Friday, July 22, 2011 6:43 AM<br>
<b>To:</b><span class="apple-converted-space"> </span><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b><span class="apple-converted-space"> </span>Re: [cisco-voip] Extension Mobility Service URL</span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Or you can use a single-sign-on application like ALM which does not rely on the service URL but verifies the cm’s for sending the logon logoff messages.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
</div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;border-width:initial;border-color:initial">
<div>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> </span></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><a href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a><span class="apple-converted-space"> </span>[mailto:cisco-voip-bounces@puck.nether.net]<span class="apple-converted-space"> </span><b>On
Behalf Of<span class="apple-converted-space"> </span></b>Mike King<br>
<b>Sent:</b><span class="apple-converted-space"> </span>donderdag 21 juli 2011 23:07<br>
<b>To:</b><span class="apple-converted-space"> </span>Cisco VoIPoE List<br>
<b>Subject:</b><span class="apple-converted-space"> </span>[cisco-voip] Extension Mobility Service URL</span><o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><span lang="NL"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="NL">We had to bring down a Subscriber last night, and had no issues other than extension mobility. The services URL specifically referenced this Subscriber.</span><o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="NL">Since we have a few subscribers, is there a way to make this a little more fault tolerant? I notice most of the other URL's (Corporate Directory) all start with Application/Cisco instead of<a href="http://IP">http://IP</a><span class="apple-converted-space"> </span>address
of server.</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="NL"> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="NL">The next time I have a similar issue, and I need to change that URL, are they're any services I need to restart? Reset phones? Will it just work?</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="NL"> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="NL">Mike</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">_______________________________________________<br>
cisco-voip mailing list<br>
<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="ES-AR"><o:p> </o:p></span></p>
</div>
</div>
</body>
</html>
<table><tr><td bgcolor=#ffffff><font color=#000000><pre>===========================================================
CIRCULAR 230 DISCLOSURE: Pursuant to Regulations Governing Practice Before the Internal Revenue
Service, any tax advice contained herein is not intended or written to be used and cannot be used
by a taxpayer for the purpose of avoiding tax penalties that may be imposed on the taxpayer.
===========================================================
CONFIDENTIALITY NOTICE:
This electronic mail message and any attached files contain information intended for the exclusive
use of the individual or entity to whom it is addressed and may contain information that is
proprietary, privileged, confidential and/or exempt from disclosure under applicable law. If you
are not the intended recipient, you are hereby notified that any viewing, copying, disclosure or
distribution of this information may be subject to legal restriction or sanction. Please notify
the sender, by electronic mail or telephone, of any unintended recipients and delete the original
message without making any copies.
===========================================================
NOTIFICATION: Katten Muchin Rosenman LLP is an Illinois limited liability partnership that has
elected to be governed by the Illinois Uniform Partnership Act (1997).
===========================================================</pre></font></td></tr></table>