CDP has nothing to do with inline power, it is L2 proprietary protocol
for negotiation of voice vlan between phone and switch,
so you don't need to set what vlan number phone should use for voice and
what is for connected pc data.
if you disable cdp on switch, phone will still working, except you
should set voice vlan manually through phone menu.
PJ
William McCloskey wrote:
Layer 2 switches support all the basic switching functionality. QoS,
SNMP, POE, VLANs, Etc... depending on the model and features. Layer 3
switches are essentialy basic routers with a switch built in.
One thing about Cisco CDP and a lot of POE switches is you can get CDP
support with a custom Ethernet cable, just swap pins 4-5 with 7-8 (This
is how I'm running Cisco 7940G's with a Dell POE Switch).
---------------------------------
William J McCloskey
Information Technology Manager
[EMAIL PROTECTED]
503-827-8141
503-228-6747 fax
www.timbercon.com
---------------------------------
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Cory
Andrews
Sent: Monday, December 11, 2006 7:32 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [asterisk-users] Re: Recommendations for QoS, PoE Switches
Edgewater Networks markets a 24 port switch, with PoE (both Cisco CDP
and 802.3af supported), and Layer 2/3 management features that retails
for less than $1500. The model is EC-2402POE-01
Cory Andrews
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Patrick
May
Sent: Monday, December 11, 2006 10:22 AM
To: [email protected]
Subject: Re: [asterisk-users] Re: Recommendations for QoS, PoE Switches
On Mon, Dec 11, 2006 at 09:53:53AM -0500, Zeeshan Zakaria wrote:
What's the price for these HP switches?
And also I someone can give me a link to some document where I can
read about Layer 2 and Layer 3, how they help in VoIP traffic, it'll
be helpful.
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CDW's retail price was about $7,000.
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