[cisco-voip] Monitoring DHCP utilization rates on UCM

Tue Sep 15 11:40:34 EDT 2009

Translation.... Don't use the CUCM built-in DHCP server.  There are a million other ones out there including the embedded one in IOS.

Dennis Heim
Network Voice Engineer
CDW  Advanced Technology Services
11711 N. Meridian Street, Suite 225
Carmel, IN  46032

317.569.4255 Office
317.569.4201 Fax
317.694.6070 Cell
dennis.heim at cdw.com<mailto:dennis.heim at cdw.com>
www.berbee.com<http://www.berbee.com/>

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Wes Sisk
Sent: Tuesday, September 15, 2009 11:25 AM
To: Cristobal Priego
Cc: Craig Staffin; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Monitoring DHCP utilization rates on UCM

<from my previous post>
The DHCP server is marginally functional and has no serviceability, see

CSCsc75796    DHCP Server that is part of CCM should provide additional information
There should be a way of finding out which IP address is allocated to which phone, how many addresses are currently allocated etc. General management statistis for the DHCP service. Can't see anything in the GUI or RTMT that addresses this.

CSCso60222    After DHCP Monitor service is stopped, IP is given to DHCP clients

It is not a very effective DHCP server.

/Wes

On Friday, September 11, 2009 12:59:00 PM, Cristobal Priego <cristobalpriego at gmail.com><mailto:cristobalpriego at gmail.com> wrote:

Cisco recommends using the CUCUM DHCP server if you have no more than 1000 devices registering to it. if you have more than 1000 devices you must use an external DHCP server.

2009/9/10 Craig Staffin <cmstaffin at gmail.com<mailto:cmstaffin at gmail.com>>
Cisco strongly discourages using UCM for DHCP.

The only reason it is there is because the windows side had it.

If you need DHCP you have a voice router somewhere in the environment that will give you far more options and flexibility.

Craig

On Sep 10, 2009, at 4:46 PM, Lelio Fulgenzi wrote:

I usually start with "file list activelog *", but I don't see anything.

---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"Bad grammar makes me [sic]" - Tshirt

----- Original Message -----
From: "Cristobal Priego" <cristobalpriego at gmail.com<mailto:cristobalpriego at gmail.com>>
To: "Lelio Fulgenzi" <lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>>
Cc: "Robert Kulagowski" <rkulagow at gmail.com<mailto:rkulagow at gmail.com>>, cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Sent: Thursday, September 10, 2009 5:29:47 PM GMT -05:00 US/Canada Eastern
Subject: Re: [cisco-voip] Monitoring DHCP utilization rates on UCM

While I was on the boot camp 1 month ago.
it was one of the questions when we started the bootcamp and Vik couldn't find the query or the command on the cli to see the bindings. i've been trying to find the command i went to every command on the cli and i couldn't find it

if you happen to find it, it would be a great feedback

2009/9/10 Lelio Fulgenzi <lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>>
That's the impression I got as well.

I'm just looking at the v7 interface now and there is two options for DHCP. Create/start/stop DHCP servers and Create/start/stop DHCP subnets.

There might be a way to use the CLI and "file view" commands to see the logs, etc. But that would hurt so much.

---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"Bad grammar makes me [sic]" - Tshirt

----- Original Message -----
From: "Robert Kulagowski" <rkulagow at gmail.com<mailto:rkulagow at gmail.com>>
To: "Ccie" <pav.ccie at gmail.com<mailto:pav.ccie at gmail.com>>
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Sent: Thursday, September 10, 2009 5:05:32 PM GMT -05:00 US/Canada Eastern
Subject: Re: [cisco-voip] Monitoring DHCP utilization rates on UCM

Ccie wrote:
> UCM 7.0
> Does anybody know if there is a way to monitor the DHCP server
> integrated into UCM.
> I am trying to get a list of bindings/ measure utilization rate and
> curious if there Is a way to do it on UCM / RTMT

I'm 99% sure that I saw in this forum that using the built-in DHCP server
is strongly discouraged, with the above being one of the things that it lacks.
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