From: Dan Shechter (danshtr@yahoo.com)
Date: Tue Jul 06 2004 - 13:46:35 GMT-3
TiuN Hong Leng wrote:
>Hi,
>
>http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12120ea2/3550cr/cli2.htm#wp2490739
>
>When checking the "switchport voice vlan" command in the command
>reference, the first line in the usage guidelines says:
>
>"You should configure voice VLAN on access ports."
>
>What does this "access ports" mean?
>
>Shouldn't the IP phone be on a 802.1q trunk port?
>
>_______________________________________________________________________
>Please help support GroupStudy by purchasing your study materials from:
>http://shop.groupstudy.com
>
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
>
>
>
When connection to Cisco phone there is no need to configure manual
trunking.
The Cisco phone uses CDP for several purposes:
* The switch can learn that it is connected to a Cisco phone
* The switch can tell the phone what VLan tag use for voice, or tell
the phone to use dot1p to "tag" voice frames
So with Cisco phones no need to configure trunks.
HTH,
Dan
This archive was generated by hypermail 2.1.4 : Sun Aug 01 2004 - 10:11:47 GMT-3