Re: Cisco Call Manager & HP Switches

[Peter Mauro <>]

FYI - I am forwarding this reply from one of our engineers.

-------- Original Message --------
Subject: Re: [Fwd: RE: Cisco Call Manager & HP Switches]
Date: 17 May 2002 09:59:55 -0400
From: Chris Griffin 
<>
To: 


Just FYI,
 The PIP does not do CDP.  Its not an Ethernet device.  It measures the
impedance across several pairs to determine if its a device capable of
accepting power.

You might want to ask them how they are assigning a different VLAN to
the voip traffic, or if they are even doing that...

Chris


"Bastian, Tim" wrote:

> Barry (and others who may be interested),  here is what we are using at Penn
> State for our VoIP deployment:
>
> HP ProCurve 4000m switches:
> http://www.hp.com/rnd/products/switches/switch4000/overview.htm
>  - 100bF uplinks used to redundant routers
>  - MAC address locking used to prevent unauthorized devices/moves
>  - redundant power supplies to allow UPS maintenance outages
>  - CDP mapping
>
> Cisco Power Insertion Panels:
> http://www.cisco.com/warp/public/cc/so/neso/vvda/iptl/cippp_ds.htm
>  - UL and IEC safety measures to prevent fires on wiring errors
>  - High Density solution
>  - Cisco supported solution for inline power (warranty on phones)
>  - does not break 100m wire length rule
>
> The PIP does Cisco Discovery Protocol (CDP). This is what the PIP uses to
> query the Ethernet device to determine if it is a phone. The phone code may
> be upgraded in the future to work with 802.3af (inline power), but for now
> it uses a proprietary Cisco algorithm that is part of CDP.
>
> We are not using the CDP mapping feature (to find out where a particular
> phone unit is plugged into the network) in the HP switches.
>
> -----Original Message-----
> From: Wray, Barry A 
> [mailto:]
> Sent: Thursday, May 16, 2002 5:33 PM
> To: 
> ''
> Subject: Cisco Call Manager & HP Switches
>
> We are looking at deploying Call Mgr with HP (new, need CDP and inline pwr)
> switches as a possibility.  Does anyone have any success stories or failures
> in which you would like to share?
>
> Barry A. Wray
> State Networks Voice Engineer
> Indiana Higher Education
> Telecommunication System
> 714 N. Senate Ave
> Indianapolis, IN 46202
> Phone: 317-263-8934
> Fax: 317-263-8831
> 
> www.ihets.org
>

--

*************************************
Peter J. Mauro /  Sr Network Engineer
Northeast Regional Data Center
University of Florida

Telephone: (352) 392-2061
*************************************


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