[cisco-voip] HP Switches

[Tim Smith]

Just out of curiosity... why dont you use the PC port?
You have phones where you dont have pc's? or you run 2 cables, and sets of
switches?

As far as I know with Cisco.. DHCP will not help config your VLAN on the
phone. A lot of 3rd party systems have this capability though. They boot in
a data vlan, get a DHCP lease from the data scope, and some custom DHCP
option tells them which vlan to use, and then they reboot themselves with
this config using separate voice and data vlans.

Manual config comes in when you want to use the pc port in the phone, and
you want to run separate voice and data vlans..
If you didnt have Cisco switches with CDP v2.. the switch could not tell the
phone which vlan to use for which port automatically.
So to configure your phone to use the voice vlan, you could manually set it
from the phone interface itself. (Lots of work on a large deployment)

Now there is LLDP-MED, there is talk of this in Cisco, and I've seen support
on phone config pages in CCM... but I'm not sure if it can be used /
deployed the same way yet. Would be interesting to know if it is possible.

Personally Cisco is still my favourite, and Cisco on Cisco is probably
always going to be the easiest.. but I do like the HP gear, and where budget
doesnt allow, i think it's certainly a worthy contender...

Same can be said for the Nortel stuff too... you had stacking and layer 2
meshing without blocking links (and between multiple physical chassis!) long
before 3750's, stackwise, cross stack etherchannel and virtualisation came
out.....

I'm going to wash my mouth out now... i feel a bit dirty :) I hope John
Chambers is not reading this forum..

Cheers,

Tim


On 7/18/08, Bill Simon <bills at psu.edu> wrote:
>
> We use (have used but are phasing out) HP Procurve on the voice network.
>  No problem.  But note:  we have a logically-separated voice network, do not
> use the phone's PC port (thus no need for VLAN) and have had to deal with
> power insertion because our HP switches are not powered.
>
> CDP is not needed.  I don't understand what you mean about hard-code the
> configuration.  DHCP provides the options the phone needs to contact Call
> Manager.
>
> I was watching the other thread about Adtran and some of the stuff people
> said seems quite like FUD.  Cisco appreciates this scare-tactic marketing
> but the truth is that you can use any LAN switch.  Using Cisco gear will
> make your life easier though.
>
> Voice Noob wrote:
>
>> I saw someone post about HP switches in a different e-mail but thought I
>> would start a new thread. I have a customer that has a significant
>> investment in HP switches. Has anyone used these in a Cisco IPT network? I
>> understand about the CDP issue but what if I hard code the configuration or
>> can I set it as a DHCP option like an Avaya IP phone? anyone tried?
>>
>
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