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AMA-CUCM Troubleshooting: Best Practices for Reading Trace Files

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Contributor

CM 7.0, publisher and subcriber

  Hi everybody.

Plase consider the following questions:

ipphones---------sw-----------cm 7.0 publisher

1 )Can we use CM 7.0 publisher as a stand alone CM so our ip phones can register with it ?

2)Can we use CM 7.0 subscriber server as as standalone CM so our ipphones can register with it ?

3)Publisher and subcriber are just mode of operation , we can configure our CM 7.0 as publisher or subscriber.  Am i correct ?

Thanks and have a great day.

2 ACCEPTED SOLUTIONS

Accepted Solutions
Hall of Fame Cisco Employee

Re: CM 7.0, publisher and subcriber

Yes

No, a SUB CANNOT exist if theres not a PUB in first place

Yes, upon install you choose which one it will be

Sent from Cisco Technical Support iPad App

HTH

java

if this helps, please rate
Advocate

CM 7.0, publisher and subcriber

In add of the information provided from Jaime (+5)

Publisher and Subscriber describe the administration and Database funtionality of CUCM within a cluster.

Publisher: is the CUCM server that do the main administration of the CUCM cluster where you can do the system changes and configurations, Publisher is also responsible for database replication. All administration related database are replicated from Publisher to all other Subscribers. Publisher is the license manager of your cluster and the license file is only uploaded to the Publisher. In any CUCM Cluster you can have only one Publisher server (the first CUCM server you install is always your Publisher) its always recommended by Cisco to provide a dedicated Publisher Server when you have more than 1000 IP Phone (the Dedicated Publisher is a server that doesn't do any call processing. you do that by disabling the Call Manager call processing services, and by removing the Publisher from any CUCM group from System- Cisco Unified CM Groups)

Subscriber: the rest of your CUCM servers are all considers Subscribers when we are talking about administration, those server take their configuration from the Publisher through the Database replication. the only Data that is replicated between these servers with each other directly are things like the SMDR or CDR (call details record).

When you have two servers only in your cluster, the first server you install is your Publisher and the second one is your Subscriber. your Publisher most likely is going to be your TFTP server, and your MOH server, So as your first server is already utilized; I only recommend you having only one Cisco Unified CM group where your Subscriber is the Primary Server and your Publisher is the Secondary. I don't recommend the Publisher being the Primary for any CUCM Group as this will require a lot of Processor resources and you don't want your Publisher server to crash, remember that as recommended by Cisco to provide a dedicated Publisher Server when you have more than 1000 IP Phone (the Dedicated Publisher is a server that doesn't do any call processing. you do that by disabling the Call Manager call processing services, and by removing the Publisher from any CUCM group

I hope this help

Cheers
Bruno Rangel

"Se você quiser alguém em quem confiar, confie em si mesmo. Quem acredita sempre alcança"
Renato Russo

Cheers
Bruno Rangel

Please remember to rate helpful responses using the stars bellow and identify helpful or correct answers
7 REPLIES 7
Hall of Fame Cisco Employee

Re: CM 7.0, publisher and subcriber

Yes

No, a SUB CANNOT exist if theres not a PUB in first place

Yes, upon install you choose which one it will be

Sent from Cisco Technical Support iPad App

HTH

java

if this helps, please rate
Contributor

CM 7.0, publisher and subcriber

Thanks Jaime

Advocate

CM 7.0, publisher and subcriber

In add of the information provided from Jaime (+5)

Publisher and Subscriber describe the administration and Database funtionality of CUCM within a cluster.

Publisher: is the CUCM server that do the main administration of the CUCM cluster where you can do the system changes and configurations, Publisher is also responsible for database replication. All administration related database are replicated from Publisher to all other Subscribers. Publisher is the license manager of your cluster and the license file is only uploaded to the Publisher. In any CUCM Cluster you can have only one Publisher server (the first CUCM server you install is always your Publisher) its always recommended by Cisco to provide a dedicated Publisher Server when you have more than 1000 IP Phone (the Dedicated Publisher is a server that doesn't do any call processing. you do that by disabling the Call Manager call processing services, and by removing the Publisher from any CUCM group from System- Cisco Unified CM Groups)

Subscriber: the rest of your CUCM servers are all considers Subscribers when we are talking about administration, those server take their configuration from the Publisher through the Database replication. the only Data that is replicated between these servers with each other directly are things like the SMDR or CDR (call details record).

When you have two servers only in your cluster, the first server you install is your Publisher and the second one is your Subscriber. your Publisher most likely is going to be your TFTP server, and your MOH server, So as your first server is already utilized; I only recommend you having only one Cisco Unified CM group where your Subscriber is the Primary Server and your Publisher is the Secondary. I don't recommend the Publisher being the Primary for any CUCM Group as this will require a lot of Processor resources and you don't want your Publisher server to crash, remember that as recommended by Cisco to provide a dedicated Publisher Server when you have more than 1000 IP Phone (the Dedicated Publisher is a server that doesn't do any call processing. you do that by disabling the Call Manager call processing services, and by removing the Publisher from any CUCM group

I hope this help

Cheers
Bruno Rangel

"Se você quiser alguém em quem confiar, confie em si mesmo. Quem acredita sempre alcança"
Renato Russo

Cheers
Bruno Rangel

Please remember to rate helpful responses using the stars bellow and identify helpful or correct answers
Contributor

CM 7.0, publisher and subcriber

Thanks Bruno

Advocate

CM 7.0, publisher and subcriber

Any time,

thank you for the  nice rating

Cheers
Bruno Rangel

"Se você quiser alguém em quem confiar, confie em si mesmo. Quem acredita sempre alcança"
Renato Russo

Cheers
Bruno Rangel

Please remember to rate helpful responses using the stars bellow and identify helpful or correct answers
Contributor

CM 7.0, publisher and subcriber

Just out of curosity 

"Se você quiser alguém em quem confiar, confie em si mesmo. Quem acredita sempre alcança"

Renato Russo

What does it mean ?

Advocate

Re: CM 7.0, publisher and subcriber

This is part of a music in Brazil , written in Portuguese of the band called Legiao Urbana

Mean anything in english like:

" If you want someone who you can trust, trusts in yourself , who believe always reaches"

Renato Russo is the author/composer

Cheers
Bruno Rangel

"Se você quiser alguém em quem confiar, confie em si mesmo. Quem acredita sempre alcança"
Renato Russo

Cheers
Bruno Rangel

Please remember to rate helpful responses using the stars bellow and identify helpful or correct answers
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