total gateway registrations to gatekeeper

Unanswered Question
May 12th, 2008

Is there a limit on how mnay gateways you can register to a single gatekeeper? or how many e.164 numbers can be registered to gatekeeper?

I have this problem too.
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gpulos Mon, 05/12/2008 - 08:29

Gatekeeper limitations/recommendations are as follows: (some limitations are mandated by hardware type & memory available)

max CCM Clusters Supported: 100

max Local Zones: not to exceed 100

max Remote Zones - Directory GK: not exceed 10,000 (if does not handle local registrations; requires 4MB additional)

max Zones (GK handles local registrations and e.164 calls): not to exceed 200

max Zones (GK handles h323-ID calls): not to exceed 200

mrugeshpatel_2 Mon, 05/12/2008 - 08:31

This information is useful, but my question still remains as to how many gateways can you register?

I am only doing one zone gatekeeper

gpulos Mon, 05/12/2008 - 08:36

no limit except for the limitations previously posted.

e.164s can have upto 10,000 for a DGK. i'd keep your local router/GK at 5,000 or below if it does all registrations and e.164 calls.

(should be a fast router; slower/smaller routers keep 2,000 or below)

gpulos Mon, 05/12/2008 - 08:36

Gatekeeper limitations/recommendations are as follows: (some limitations are mandated by hardware type & memory available)

max CCM Clusters Supported: 100

max Local Zones: not to exceed 100

max Remote Zones - Directory GK: not exceed 10,000 (if does not handle local registrations; requires 4MB additional)

max Zones (GK handles local registrations and e.164 calls): not to exceed 200

max Zones (GK handles h323-ID calls): not to exceed 200

dezoconnor Mon, 05/12/2008 - 10:47

Hi Greg, if you don't mind me asking which reference doc did you find this info on?

Cheers. Darren

Michael Owuor Mon, 05/12/2008 - 11:34

For gatekeeper performance data, we generally recommend that you solicit the help of your Cisco SE because the answer depends to a very large extent on what application the gatekeeper is supporting. That might also explain why there's little customer facing documentation on the subject.

A 3845 gatekeeper with 10 gateway endpoints registered to it and handling 5 calls per second would be under much less stress than one with 10 gateway endpoints registered to it and handling 50 calls per second.

Obviously the number of calls per second is an important factor when determining gatekeeper performance. Also important is the number of concurrent calls.

The guideline for a 3845 is a maximum capacity of 100 Calls per second, and 15000 active calls.

The CCM SRND states the following:

'The choice of gatekeeper platform is based on the number of calls per second and the number of concurrent calls. A higher number of calls per second requires a more powerful CPU, such as a Cisco 3700, 3800, or 7200 Series Router. A higher number of concurrent calls requires more memory. For the latest information on platform selection, contact your Cisco partner or Cisco Systems Engineer (SE).'

Hope this helps.

Regards,

Michael.

MehmetKaya Fri, 10/07/2011 - 09:42

Hello,

The the limitation  of gateways listed below;

Platform

Registered Endpoints

CPS

2801

Not recommended for   production GK applications

2811

5000

10

2821

7500

20

2851

10000

30

3825

10000

60

3845

15000

70

AS5000XM

15000

100

2901

5000

10

2911

7500

20

2921

10000

40

2951

10000

60

3925

15000

120

3945

15000

140

3925E

15000

200

3945E

15000

250

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