<div>You can use any of the two options depending on the type of catalyst switch that you are using to connect the ipphones.Second option was used more with older 3500 XL series switches where you had to define the port as a trunk , the first option is used with the newer switches like 3560 ,3650. In any case this port is a special type of
801.q trunk in the first case as well. when you issue the command sh int switchport you can see that it is working like a trunk.<br> </div>
<div>Thanks</div>
<div>Aman<br> </div>
<div><span class="gmail_quote">On 11/24/06, <b class="gmail_sendername">omar parihuana</b> <<a href="mailto:omar.parihuana@gmail.com">omar.parihuana@gmail.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi,<br><br>I prefer the second option, it's more explicit, indeed How can one single cable carry Data VLAN and Voice VLAN if there isn't a trunk? in this way
802.1Q / 802.1p is clear. <br><br>see: <a onclick="return top.js.OpenExtLink(window,event,this)" href="http://www.javvin.com/protocol8021P.html" target="_blank">http://www.javvin.com/protocol8021P.html</a><br><br>Rgds.<br>
<br>
<div><span class="gmail_quote">On 11/24/06, <b class="gmail_sendername">Ruben Montes (Europe)</b> <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:Ruben.Montes@eu.didata.com" target="_blank">Ruben.Montes@eu.didata.com
</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<div>
<p>Hello,</p>
<p>I have always configured the switch IOS ports where IP phones are connected this way:</p>
<p>int fa0/1</p>
<p>switchport access vlan DATA</p>
<p>switchport voice vlan VOICE</p>
<p>switchport mode access</p>
<p>spanning-tree portfast</p>
<p> </p>
<p>But I've seen in the CCVP courses that the configuration is different:</p><font face="Helv" size="2">
<p>interface fastethernet 0/1</p>
<p>switchport trunk encapsulation dot1q</p>
<p>switchport trunk native vlan DATA</p>
<p>switchport mode trunk</p>
<p>switchport voice vlan VOICE</p>
<p>spanning-tree portfast</p>
<p>Can anybody explain me the differences between them and if any of them have any advantage respect the other one? I prefer the first one rather than the second, I don't like to configure a trunk to connect a phone, but I want to understand why Cisco recommends the second configuration respect the first one?
</p>
<p>Thanks in advance,</p>
<p>Ruben</p></font></div><br>_______________________________________________<br>cisco-voip mailing list<br><a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:cisco-voip@puck.nether.net" target="_blank">
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<br><br><br></blockquote></div><br><br clear="all"><br>-- <br>Omar E.P.T<br>-----------------<br>Certified Networking Professionals make better Connections!<br><br><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://omarept.blogspot.com/" target="_blank">
http://omarept.blogspot.com/</a><br><br> Usysnet Corp<br>Open Source Solutions<br><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://www.usysnet.com.pe/" target="_blank">www.usysnet.com.pe</a> <br>_______________________________________________
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