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    <title>About Broadcast Zoning </title>
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<a name="wp1078125"> </a><h1 class="pTitle">
About Broadcast Zoning

</h1>
<a name="wp1078126"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> Broadcast zoning is not supported on the Cisco Fabric Switch for HP c-Class BladeSystem and the Cisco 
Fabric Switch for IBM BladeCenter.

</p>
<a name="wp1078127"> </a><p class="pBody">
You can configure broadcast frames in the basic zoning mode. By default, broadcast zoning is disabled 
and broadcast frames are sent to all Nx ports in the VSAN. When enabled, broadcast frames are only 
sent to Nx ports in the same zone, or zones, as the sender. Enable broadcast zoning when a host or storage 
device uses this feature.

</p>
<a name="wp1078131"> </a><p class="pBody">
<a href="zone14.html#wp1078135">Table&#160;17-2</a> identifies the rules for the delivery of broadcast frames.

</p>
<a name="wp1078174"> </a><p class="pBodyRelative">
</p><div>
<table border="2" cellpadding="2" id="wp1078135table1078132">
  <caption><a name="wp1078135"> </a><div class="pTableTitle">
Table&#160;17-2	Broadcasting Requirements

</div>
</caption>
  <tr bgcolor="#CCCCCC" align="left" valign="middle">    <th><a name="wp1078143"> </a><p class="pCellHeading">
Active Zoning?

</p>
</th>
    <th><a name="wp1078145"> </a><p class="pCellHeading">
Broadcast Enabled?

</p>
</th>
    <th><a name="wp1078147"> </a><p class="pCellHeading">
Frames Broadcast?

</p>
</th>
    <th><a name="wp1078149"> </a><p class="pCellHeading">
Comments

</p>
</th>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1078151"> </a><p class="pBody">
Yes

</p>
</td>
    <td><a name="wp1078153"> </a><p class="pBody">
Yes

</p>
</td>
    <td><a name="wp1078155"> </a><p class="pBody">
Yes

</p>
</td>
    <td><a name="wp1078157"> </a><p class="pBody">
Broadcast to all Nx ports that share a 
broadcast zone with the source of 
broadcast frames.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1078159"> </a><p class="pBody">
No

</p>
</td>
    <td><a name="wp1078161"> </a><p class="pBody">
Yes

</p>
</td>
    <td><a name="wp1078163"> </a><p class="pBody">
Yes

</p>
</td>
    <td><a name="wp1078165"> </a><p class="pBody">
Broadcast to all Nx ports.

</p>
</td>
</tr>
  <tr align="left" valign="top">    <td><a name="wp1078167"> </a><p class="pBody">
Yes

</p>
</td>
    <td><a name="wp1078169"> </a><p class="pBody">
No

</p>
</td>
    <td><a name="wp1078171"> </a><p class="pBody">
No

</p>
</td>
    <td><a name="wp1078173"> </a><p class="pBody">
Broadcasting is disabled.

</p>
</td>
</tr>
</table>
</div>
<p class="pBodyRelative">
</p>
<a name="wp1078175"> </a><p class="pBodyAutonumRel">
<strong>Tip	&nbsp;&nbsp;&nbsp;</strong> If any NL port attached to an FL port shares a broadcast zone with the source of the broadcast frame, 
then the frames are broadcast to all devices in the loop.

</p>
<a name="wp1078176"> </a><p class="pCaution">
<table border="0">
<tr>
<td>
<strong>Caution	&nbsp;&nbsp;&nbsp;</strong>
</td>
<td>
<p>If broadcast zoning is enabled on a switch, you cannot configure the interop mode in that VSAN.
</p>
</td>
</tr>
</table>

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

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