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Home > Archive > Voice over IP Cisco > December 2007 > Sizing Callmanager Server
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| Author |
Sizing Callmanager Server
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| Reto Gassmann 2007-12-07, 7:11 am |
| Hello
we run our Callmanager 4.2(3) on HP DL 380 G4 Servers (MCS-7854 H2). We have the
phones configured on two servers. So there are about 2550 Phones per server. If
one server fails the phones change to the other and the phones sum up to over
5000 phones on this single server.
In Service Parameters Configuration / cisco CallManager I found an entry called
Maximum Number of Registered Devices* and the value is 5000. So what happens if
I have more than 5000 phones??
According to the SRND the 7845 can handle up to 7500 devices. Has any one an
experience what happens to this if I enable cluster security?
Thanks for help
Reto
| |
| Jonathan Charles 2007-12-07, 1:11 pm |
| If you have 5000 phones, you should have at least 3 servers, with 2500
registered to each of the two subs and the pub backing up each.
However, I would recommend 4, with three subs, with one sub backing up
another and the pub backing up the other sub.
Jonathan
On Dec 7, 2007 6:51 AM, Reto Gassmann <voip@mrga.ch> wrote:
> Hello
> we run our Callmanager 4.2(3) on HP DL 380 G4 Servers (MCS-7854 H2). We have the
> phones configured on two servers. So there are about 2550 Phones per server. If
> one server fails the phones change to the other and the phones sum up to over
> 5000 phones on this single server.
> In Service Parameters Configuration / cisco CallManager I found an entry called
> Maximum Number of Registered Devices* and the value is 5000. So what happens if
> I have more than 5000 phones??
>
> According to the SRND the 7845 can handle up to 7500 devices. Has any one an
> experience what happens to this if I enable cluster security?
>
> Thanks for help
> Reto
>
>
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
| |
| Reto Gassmann 2007-12-07, 1:11 pm |
| Hi Jonathan
thanks for help.
We have six Callmanagers running (1 Pub and 5 Sub) and two of the handle the
phones and three handle CTI. THen there is the Publisher.
Reto
Zitat von Jonathan Charles <jonvoip@gmail.com>:
> If you have 5000 phones, you should have at least 3 servers, with 2500
> registered to each of the two subs and the pub backing up each.
>
> However, I would recommend 4, with three subs, with one sub backing up
> another and the pub backing up the other sub.
>
>
>
> Jonathan
>
> On Dec 7, 2007 6:51 AM, Reto Gassmann <voip@mrga.ch> wrote:
> have the
> server. If
> over
> called
> happens if
> an
>
| |
|
| Reto,
For the MCS to go up to 7500, *officially* you need an extra license. =
Jean-Francois Guay, ing.
Bell Solutions T.I.C
=
=
-----Original Message-----
From: Reto Gassmann [mailto:voip@mrga.ch] =
Sent: 7 d=E9cembre 2007 07:52
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] Sizing Callmanager Server
Hello
we run our Callmanager 4.2(3) on HP DL 380 G4 Servers (MCS-7854 H2). We hav=
e the
phones configured on two servers. So there are about 2550 Phones per server=
.. If
one server fails the phones change to the other and the phones sum up to ov=
er
5000 phones on this single server.
In Service Parameters Configuration / cisco CallManager I found an entry ca=
lled
Maximum Number of Registered Devices* and the value is 5000. So what happen=
s if
I have more than 5000 phones??
According to the SRND the 7845 can handle up to 7500 devices. Has any one an
experience what happens to this if I enable cluster security?
Thanks for help
Reto
| |
| Jonathan Charles 2007-12-07, 1:11 pm |
| Well, it is 4.2, so the server will have no idea...
J
On Dec 7, 2007 8:03 AM, <jean-francois.guay@bell.ca> wrote:
> Reto,
>
> For the MCS to go up to 7500, *officially* you need an extra license.
>
>
> Jean-Francois Guay, ing.
> Bell Solutions T.I.C
>
>
>
>
> -----Original Message-----
> From: Reto Gassmann [mailto:voip@mrga.ch]
> Sent: 7 d=E9cembre 2007 07:52
> To: cisco-voip@puck.nether.net
> Subject: [cisco-voip] Sizing Callmanager Server
>
> Hello
> we run our Callmanager 4.2(3) on HP DL 380 G4 Servers (MCS-7854 H2). We h=
ave the
> phones configured on two servers. So there are about 2550 Phones per serv=
er. If
> one server fails the phones change to the other and the phones sum up to =
over
> 5000 phones on this single server.
> In Service Parameters Configuration / cisco CallManager I found an entry =
called
> Maximum Number of Registered Devices* and the value is 5000. So what happ=
ens if
> I have more than 5000 phones??
>
> According to the SRND the 7845 can handle up to 7500 devices. Has any one=
an
> experience what happens to this if I enable cluster security?
>
> Thanks for help
> Reto
>
>
>
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
| |
| Jonathan Charles 2007-12-07, 1:11 pm |
| OK, then you should be fine...
If a sub fails, then the pub will take over that chunk of 2500, and
you shouldn't get overloaded...
The question is, are your CallManager groups set up so that the phones
are balanced between the servers...
Jonathan
On Dec 7, 2007 7:59 AM, Reto Gassmann <voip@mrga.ch> wrote:
> Hi Jonathan
>
> thanks for help.
> We have six Callmanagers running (1 Pub and 5 Sub) and two of the handle the
> phones and three handle CTI. THen there is the Publisher.
>
> Reto
>
> Zitat von Jonathan Charles <jonvoip@gmail.com>:
>
>
>
>
>
>
>
| |
| Lelio Fulgenzi 2007-12-07, 1:11 pm |
| You should be able to run more than 2500 phones on each server, but the
problem you will run into is when they start to register, it might take a
bit longer. You definately need a backup subscriber, but this can be your
TFTP server. If you're in a financial pinch you can probably get away with 1
pub, 1 sub and 1 TFTP server to act as a backup sub.
----- Original Message -----
From: "Jonathan Charles" <jonvoip@gmail.com>
To: "Reto Gassmann" <voip@mrga.ch>
Cc: <cisco-voip@puck.nether.net>
Sent: Friday, December 07, 2007 8:46 AM
Subject: Re: [cisco-voip] Sizing Callmanager Server
> If you have 5000 phones, you should have at least 3 servers, with 2500
> registered to each of the two subs and the pub backing up each.
>
> However, I would recommend 4, with three subs, with one sub backing up
> another and the pub backing up the other sub.
>
>
>
> Jonathan
>
> On Dec 7, 2007 6:51 AM, Reto Gassmann <voip@mrga.ch> wrote:
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
| |
| Wes Sisk 2007-12-07, 1:11 pm |
| Hi Reto,
CM Capacity Planning Tool:
http://www.cisco.com/cgi-bin/CT/CCMCT/ct.cgi
The 5000 is an enforced limit. It also includes 'virtual devices' such
as software MTP, MoH server, Route Lists, etc. Once the CM process on
the server observes 5000 concurrent registrations it will begin
rejecting registration requests.
For supporting evidence take a look at CSCsa81331 and CSCeg62328 in bug
toolkit on Cisco.com
/Wes
Reto Gassmann wrote:
> Hello
> we run our Callmanager 4.2(3) on HP DL 380 G4 Servers (MCS-7854 H2). We have the
> phones configured on two servers. So there are about 2550 Phones per server. If
> one server fails the phones change to the other and the phones sum up to over
> 5000 phones on this single server.
> In Service Parameters Configuration / cisco CallManager I found an entry called
> Maximum Number of Registered Devices* and the value is 5000. So what happens if
> I have more than 5000 phones??
>
> According to the SRND the 7845 can handle up to 7500 devices. Has any one an
> experience what happens to this if I enable cluster security?
>
> Thanks for help
> Reto
>
>
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
| |
| Lelio Fulgenzi 2007-12-07, 1:11 pm |
| i think this tool is available to partners only. 
sure would be nice for us to be able to use it.
----- Original Message -----
From: "Wes Sisk" <wsisk@cisco.com>
To: "Reto Gassmann" <voip@mrga.ch>
Cc: <cisco-voip@puck.nether.net>
Sent: Friday, December 07, 2007 10:00 AM
Subject: Re: [cisco-voip] Sizing Callmanager Server
> Hi Reto,
>
> CM Capacity Planning Tool:
> http://www.cisco.com/cgi-bin/CT/CCMCT/ct.cgi
>
> The 5000 is an enforced limit. It also includes 'virtual devices' such
> as software MTP, MoH server, Route Lists, etc. Once the CM process on
> the server observes 5000 concurrent registrations it will begin
> rejecting registration requests.
>
> For supporting evidence take a look at CSCsa81331 and CSCeg62328 in bug
> toolkit on Cisco.com
> /Wes
>
> Reto Gassmann wrote:
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
| |
| Wes Sisk 2007-12-07, 1:11 pm |
| Have you requested access? /wes
Lelio Fulgenzi wrote:[vbcol=seagreen]
> i think this tool is available to partners only.
>
> sure would be nice for us to be able to use it.
>
> ----- Original Message ----- From: "Wes Sisk" <wsisk@cisco.com>
> To: "Reto Gassmann" <voip@mrga.ch>
> Cc: <cisco-voip@puck.nether.net>
> Sent: Friday, December 07, 2007 10:00 AM
> Subject: Re: [cisco-voip] Sizing Callmanager Server
>
>
| |
| Lelio Fulgenzi 2007-12-07, 1:11 pm |
| who would i request it from?
----- Original Message -----
From: "Wes Sisk" <wsisk@cisco.com>
To: "Lelio Fulgenzi" <lelio@uoguelph.ca>
Cc: "Reto Gassmann" <voip@mrga.ch>; <cisco-voip@puck.nether.net>
Sent: Friday, December 07, 2007 10:24 AM
Subject: Re: [cisco-voip] Sizing Callmanager Server
> Have you requested access? /wes
>
> Lelio Fulgenzi wrote:
>
| |
| Wes Sisk 2007-12-07, 7:11 pm |
| email web-help@cisco.com
/Wes
Lelio Fulgenzi wrote:[vbcol=seagreen]
> who would i request it from?
>
> ----- Original Message ----- From: "Wes Sisk" <wsisk@cisco.com>
> To: "Lelio Fulgenzi" <lelio@uoguelph.ca>
> Cc: "Reto Gassmann" <voip@mrga.ch>; <cisco-voip@puck.nether.net>
> Sent: Friday, December 07, 2007 10:24 AM
> Subject: Re: [cisco-voip] Sizing Callmanager Server
>
>
| |
| Jim McBurnett 2007-12-09, 1:11 pm |
| Any word on when the 7816 and the 7825h/i-3 will be added?
The 7816 is bigger than the 15 and nearly half the 25-- but still not mirrored..
Just a thought..
Thanks,Jim
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Wes Sisk
Sent: Friday, December 07, 2007 4:37 PM
To: Lelio Fulgenzi
Cc: cisco-voip@puck.nether.net
Subject: Re: [cisco-voip] Sizing Callmanager Server
email web-help@cisco.com
/Wes
Lelio Fulgenzi wrote:[vbcol=seagreen]
> who would i request it from?
>
> ----- Original Message ----- From: "Wes Sisk" <wsisk@cisco.com>
> To: "Lelio Fulgenzi" <lelio@uoguelph.ca>
> Cc: "Reto Gassmann" <voip@mrga.ch>; <cisco-voip@puck.nether.net>
> Sent: Friday, December 07, 2007 10:24 AM
> Subject: Re: [cisco-voip] Sizing Callmanager Server
>
>
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