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    <title>Manually Initiating a Switchover </title>
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<a name="wp1065359"> </a><h1 class="pTitle">
Manually Initiating a Switchover

</h1>
<a name="wp1096712"> </a><p class="pBody">
To manually initiate a switchover from an active supervisor module to a standby supervisor module, use 
the active supervisor module using Device Manager. After you enter this command, another switchover 
process cannot be started on the same switch until a stable standby supervisor module is available.

</p>
<a name="wp1124399"> </a><p class="pBody">
To perform a switchover using Device Manager, follow these steps:

</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">
<a name="wp1124400"> </a><li class="pSmartList1">Ensure that an HA switchover is possible by selecting <span style="font-weight: bold">Physical &gt; Modules</span> to verify the presence of 
multiple modules. 
</li>
<a name="wp1124411"> </a><li class="pSmartList1">In the main Device Manager screen, select <b class="cBold">Admin</b> &gt; <b class="cBold">Reset Switch</b>.
</li>
<a name="wp1124417"> </a><li class="pSmartList1">Click <b class="cBold">Switch to Standby</b>.
</li>
</ol></div>
<a name="wp1096895"> </a><p class="pBody">
The following conditions identify when automatic synchronization is possible:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1096896"> </a><li class="pSmartList1">If the internal state of one supervisor module is Active with HA standby and the other supervisor 
module is HA standby, the switch is operationally HA and can do automatic synchronization.
</li>
<a name="wp1096897"> </a><li class="pSmartList1">If the internal state of one of the supervisor modules is none, the switch cannot do automatic 
synchronization.
</li>
</ul></div>
<a name="wp1096902"> </a><p class="pBody">
<a href="ha6.html#wp1096909">Table&#160;8-1</a> lists the possible values for the redundancy states.

</p>
<a name="wp1096948"> </a><p class="pBodyRelative">
</p><div>
<table border="2" cellpadding="2" id="wp1096909table1096903">
  <caption><a name="wp1096909"> </a><div class="pTableTitle">
Table&#160;8-1	Redundancy States&#160;

</div>
</caption>
  <tr bgcolor="#CCCCCC" align="left" valign="middle">    <th><a name="wp1096913"> </a><p class="pCellHeading">
State

</p>
</th>
    <th><a name="wp1096915"> </a><p class="pCellHeading">
Description

</p>
</th>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096917"> </a><p class="pBody">
Not present

</p>
</td>
    <td><a name="wp1096919"> </a><p class="pBody">
The supervisor module is not present or is not plugged into the chassis.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096921"> </a><p class="pBody">
Initializing

</p>
</td>
    <td><a name="wp1096923"> </a><p class="pBody">
The diagnostics have passed and the configuration is being downloaded. 

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096925"> </a><p class="pBody">
Active

</p>
</td>
    <td><a name="wp1096927"> </a><p class="pBody">
The active supervisor module and the switch is ready to be configured.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096929"> </a><p class="pBody">
Standby

</p>
</td>
    <td><a name="wp1096931"> </a><p class="pBody">
A switchover is possible.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096933"> </a><p class="pBody">
Failed

</p>
</td>
    <td><a name="wp1096935"> </a><p class="pBody">
The switch detects a supervisor module failure on initialization and automatically 
attempts to power-cycle the module three (3) times. After the third attempt it 
continues to display a failed state.

</p>
<a name="wp1123561"> </a><p class="pListNote1">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> You should try to initialize the supervisor module until it comes up as 
HA-standby. This state is a temporary state.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096937"> </a><p class="pBody">
Offline

</p>
</td>
    <td><a name="wp1096939"> </a><p class="pBody">
The supervisor module is intentionally shut down for debugging purposes. 

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096941"> </a><p class="pBody">
At BIOS

</p>
</td>
    <td><a name="wp1096943"> </a><p class="pBody">
The switch has established connection with the supervisor and the supervisor 
module is performing diagnostics.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1096945"> </a><p class="pBody">
Unknown

</p>
</td>
    <td><a name="wp1096947"> </a><p class="pBody">
The switch is in an invalid state. If it persists, call TAC.

</p>
</td>
</tr>
</table>
</div>
<p class="pBodyRelative">
</p>
<a name="wp1096953"> </a><p class="pBody">
<a href="ha6.html#wp1068484">Table&#160;8-2</a> lists the possible values for the supervisor module states.

</p>
<a name="wp1096958"> </a><p class="pBodyRelative">
</p><div>
<table border="2" cellpadding="2" id="wp1068484table1068477">
  <caption><a name="wp1068484"> </a><div class="pTableTitle">
Table&#160;8-2	Supervisor States&#160;

</div>
</caption>
  <tr bgcolor="#CCCCCC" align="left" valign="middle">    <th><a name="wp1068488"> </a><p class="pCellHeading">
State

</p>
</th>
    <th><a name="wp1068490"> </a><p class="pCellHeading">
Description

</p>
</th>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068492"> </a><p class="pBody">
Active

</p>
</td>
    <td><a name="wp1068495"> </a><p class="pBody">
The active supervisor module in the switch is ready to be configured.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068497"> </a><p class="pBody">
HA standby

</p>
</td>
    <td><a name="wp1068500"> </a><p class="pBody">
A switchover is possible.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068502"> </a><p class="pBody">
Offline

</p>
</td>
    <td><a name="wp1068504"> </a><p class="pBody">
The switch is intentionally shut down for debugging purposes. 

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068506"> </a><p class="pBody">
Unknown

</p>
</td>
    <td><a name="wp1068508"> </a><p class="pBody">
The switch is in an invalid state and requires a support call to TAC.

</p>
</td>
</tr>
</table>
</div>
<p class="pBodyRelative">
</p>
<a name="wp1068513"> </a><p class="pBody">
<a href="ha6.html#wp1068521">Table&#160;8-3</a> lists the possible values for the internal redundancy states.

</p>
<a name="wp1096963"> </a><p class="pBodyRelative">
</p><div>
<table border="2" cellpadding="2" id="wp1068521table1068514">
  <caption><a name="wp1068521"> </a><div class="pTableTitle">
Table&#160;8-3	Internal States&#160;

</div>
</caption>
  <tr bgcolor="#CCCCCC" align="left" valign="middle">    <th><a name="wp1068525"> </a><p class="pCellHeading">
State

</p>
</th>
    <th><a name="wp1068527"> </a><p class="pCellHeading">
Description

</p>
</th>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068529"> </a><p class="pBody">
HA standby

</p>
</td>
    <td><a name="wp1068533"> </a><p class="pBody">
The HA switchover mechanism in the standby supervisor module is 
enabled (see the <a href="ha4.html">&quot;Synchronizing Supervisor Modules&quot; topic</a>). 

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068538"> </a><p class="pBody">
Active with no standby

</p>
</td>
    <td><a name="wp1068541"> </a><p class="pBody">
A switchover is not possible.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068543"> </a><p class="pBody">
Active with HA standby

</p>
</td>
    <td><a name="wp1068546"> </a><p class="pBody">
The active supervisor module in the switch is ready to be configured. The 
standby module is in the HA-standby state.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068548"> </a><p class="pBody">
Shutting down

</p>
</td>
    <td><a name="wp1068550"> </a><p class="pBody">
The switch is being shut down.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068552"> </a><p class="pBody">
HA switchover in 
progress

</p>
</td>
    <td><a name="wp1068554"> </a><p class="pBody">
The switch is in the process of changing over to the HA switchover 
mechanism.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068556"> </a><p class="pBody">
Offline

</p>
</td>
    <td><a name="wp1068558"> </a><p class="pBody">
The switch is intentionally shut down for debugging purposes. 

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068560"> </a><p class="pBody">
HA synchronization in 
progress

</p>
</td>
    <td><a name="wp1068562"> </a><p class="pBody">
The standby supervisor module is in the process of synchronizing its state 
with the active supervisor modules.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068564"> </a><p class="pBody">
Standby (failed)

</p>
</td>
    <td><a name="wp1068566"> </a><p class="pBody">
The standby supervisor module is not functioning.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068568"> </a><p class="pBody">
Active with failed 
standby

</p>
</td>
    <td><a name="wp1068571"> </a><p class="pBody">
The active supervisor module and the second supervisor module is present 
but is not functioning. 

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1068573"> </a><p class="pBody">
Other

</p>
</td>
    <td><a name="wp1068575"> </a><p class="pBody">
The switch is in a transient state. If it persists, call TAC.

</p>
</td>
</tr>
</table>
</div>
<p class="pBodyRelative">
</p>
<a name="wp1096071"> </a><p class="pBody">


</p>
<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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