This approach is good, but we should be aware that it may work not for all types of load balancers. For example, in HAProxy health monitor is transformed into nameless option inside backend section. The status of member (server) shows whether last check was succeed or failed with some code (<a href="http://cbonte.github.com/haproxy-dconv/configuration-1.4.html#9.1">http://cbonte.github.com/haproxy-dconv/configuration-1.4.html#9.1</a>). The driver may try to map the code to health monitor, but it may be not trivial to do or the mapping may be not one-to-one.<div>
<br></div><div>Ilya.</div><div><br><div class="gmail_quote">2012/11/22 Mellquist, Peter <span dir="ltr"><<a href="mailto:peter.mellquist@hp.com" target="_blank">peter.mellquist@hp.com</a>></span><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="color:#1f497d">Hi Youcef,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">This looks like it will work fine. I like this since it shows the state of all the monitors for the member.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Peter.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></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""> Youcef Laribi [mailto:<a href="mailto:Youcef.Laribi@eu.citrix.com" target="_blank">Youcef.Laribi@eu.citrix.com</a>]
<br>
<b>Sent:</b> Wednesday, November 21, 2012 12:34 PM</span></p><div class="im"><br>
<b>To:</b> OpenStack Development Mailing List<br>
</div><b>Subject:</b> Re: [openstack-dev] [Quantum] [LBaaS] Health Monitor Failure Detection<u></u><u></u><p></p>
</div>
</div><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span style="color:#1f497d">Hi Peter,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Yes you bring up a good point that we missed in the API. Usually in LB products when user displays the member, then the monitors used to monitor the member and their status are also displayed. We can adopt the
same approach as follows:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"member"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> : {<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"id"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"c57f581b-c834-408f-93fa-30543cf30618"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"tenant_id"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"310df60f-2a10-4ee5-9554-98393092194c"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"pool_id"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"cfc6589d-f949-4c66-99d2-c2da56ef3764"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"address"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"192.168.224.31"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"port"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#0080c0">8080</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> </span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"weight"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">
: </span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#0080c0">1</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"admin_state_up"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><b><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:teal">true</span></b><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"status"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"INACTIVE",<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080"> "health_monitors_status"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> : [<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> {<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"health_monitor_id" : "f3eeab00-8367-4524-b662-55e64d4cacb5",</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"status" : "FAIL"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> },<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> {<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"health_monitor_id" : "</span><span style="font-size:10.0pt;font-family:Courier;color:#004080">70995ff0-341a-11e2-81c1-0800200c9a66</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">",</span><b><span style="font-size:10.0pt;font-family:Courier;color:#004080"><u></u><u></u></span></b></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"status" : "SUCCESS"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> }<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u> <u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> ]<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> }<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Would this be acceptable?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Youcef<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><a name="13b24ce5dfa231e0__MailEndCompose"></a><span style="color:#1f497d"><u></u> <u></u></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""> Mellquist, Peter [mailto:<a href="mailto:peter.mellquist@hp.com" target="_blank">peter.mellquist@hp.com</a>]
<br>
<b>Sent:</b> Wednesday, November 21, 2012 11:17 AM<br>
<b>To:</b> OpenStack Development Mailing List<br>
<b>Subject:</b> [openstack-dev] Quantum LBaaS Health Monitor Failure Detection<u></u><u></u></span></p>
</div>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Hi LBaaS’ers,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">With the current capability to associate multiple health monitors with a pool, it does not seem possible to see which specific health monitor has detected an issue. For example, If I have a PING and HTTP monitor and the HTTP monitor fails
how can the user or admin have visibility into the specific failure?<u></u><u></u></p>
<p><span lang="EN" style="font-family:"Arial","sans-serif"">“When a pool has several monitors associated with it, each member of the pool is monitored by all these monitors. If any monitor declares the member as unhealthy, then the
member status is changed to INACTIVE and the member won't participate in its pool's load balancing. In other words, ALL monitors must declare the member to be healthy for it to stay ACTIVE. “<u></u><u></u></span></p>
<p>Member status changing to INACTIVE does not describe the reason why. Would it make sense to have a member status reason with the reference to the health monitor id in this case? We could then see which health monitor is failing and allow
the user or admin to take appropriate action.<u></u><u></u></p>
<p><u></u> <u></u></p>
<p>Peter.<u></u><u></u></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"member"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> : {<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"id"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"c57f581b-c834-408f-93fa-30543cf30618"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"tenant_id"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"310df60f-2a10-4ee5-9554-98393092194c"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"pool_id"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"cfc6589d-f949-4c66-99d2-c2da56ef3764"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"address"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"192.168.224.31"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"port"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#0080c0">8080</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> </span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"weight"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">
: </span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#0080c0">1</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"admin_state_up"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><b><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:teal">true</span></b><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"status"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"INACTIVE",<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080"> "status_reason"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"f3eeab00-8367-4524-b662-55e64d4cacb5"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> }</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#1f497d">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u><u></u></span></p>
<p><u></u> <u></u></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">{<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"health_monitor"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> {<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"id"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"f3eeab00-8367-4524-b662-55e64d4cacb5"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"type"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"HTTP"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"delay"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#0080c0">20</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"timeout"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#0080c0">10</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"max_retries"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#0080c0">3</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"http_method"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"GET"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"url_path"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"/"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"expected_codes"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"> :
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"200,202"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"admin_state_up"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><b><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:teal">true</span></b><span lang="EN" style="font-size:10.0pt;font-family:Courier">,<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"status"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier">:
</span><span lang="EN" style="font-size:10.0pt;font-family:Courier;color:#004080">"ACTIVE"</span><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"> }<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier">}<u></u><u></u></span></p>
<p class="MsoNormal" style="background:#f3f5f7"><span lang="EN" style="font-size:10.0pt;font-family:Courier"><u></u> <u></u></span></p>
<p><u></u> <u></u></p>
<p><span lang="EN" style="font-family:"Arial","sans-serif""><u></u> <u></u></span></p>
<p><span lang="EN" style="font-family:"Arial","sans-serif""><u></u> <u></u></span></p>
<p><span lang="EN" style="font-family:"Arial","sans-serif""><u></u> <u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div></div></div>
</div>
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