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Community Member

Use Publisher as primary IPMA Server

Dear Expert,

I would like to khnow if the fact of using my publisher (on a cluster of three nodes) as a primary IPMA server is a deviation of the best practice of Cisco or it can implémented without any issue. Thank you in advance.

Nizar Houichi

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Red

Use Publisher as primary IPMA Server

Hi Nizar,

The "best practice" as outlined in the attached link and excerpt from the SRND

recommends using a Primary-standby "pair" of Subscriber servers to support

the IPMA service in a redundant fashion.

As shown in Figure 19-9 Unified CM Assistant functionality is primarily dependent on the Cisco IP Manager Assistant service and the Cisco CTIManager service. In both cases, redundancy is automatically built-in using a primary and backup mechanism. Up to three pairs of active and backup Unified CM Assistant servers (nodes running the Cisco IP Manager service) can be defined, for a total of six Unified CM Assistant servers within a single cluster. Active and backup Unified CM Assistant server pairs are configured using the Cisco IPMA Server IP Address, Pool 2 Cisco IPMA Server IP Address, and Pool 3 Cisco IPMA Server IP Address service parameters. With the configuration of these parameters, the required Cisco IP Manager service is made redundant. Given a failure of any of the primary Unified CM Assistant servers, the backup or standby Unified CM Assistant servers are able to handle Unified CM Assistant service requests. For each pair of Unified CM Assistant servers, only one Unified CM Assistant server can be active and handling request at a given time, while the other Unified CM Assistant server will be in a standby state and will not handle requests unless the active server fails.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/cmapps.html#wp1043843

That being said, you can include the Publisher here (perhaps as a standby)

as second choice so that the Pub can be left primarily for call processing tasks

Cheers!

Rob

2 REPLIES
Hall of Fame Super Red

Use Publisher as primary IPMA Server

Hi Nizar,

The "best practice" as outlined in the attached link and excerpt from the SRND

recommends using a Primary-standby "pair" of Subscriber servers to support

the IPMA service in a redundant fashion.

As shown in Figure 19-9 Unified CM Assistant functionality is primarily dependent on the Cisco IP Manager Assistant service and the Cisco CTIManager service. In both cases, redundancy is automatically built-in using a primary and backup mechanism. Up to three pairs of active and backup Unified CM Assistant servers (nodes running the Cisco IP Manager service) can be defined, for a total of six Unified CM Assistant servers within a single cluster. Active and backup Unified CM Assistant server pairs are configured using the Cisco IPMA Server IP Address, Pool 2 Cisco IPMA Server IP Address, and Pool 3 Cisco IPMA Server IP Address service parameters. With the configuration of these parameters, the required Cisco IP Manager service is made redundant. Given a failure of any of the primary Unified CM Assistant servers, the backup or standby Unified CM Assistant servers are able to handle Unified CM Assistant service requests. For each pair of Unified CM Assistant servers, only one Unified CM Assistant server can be active and handling request at a given time, while the other Unified CM Assistant server will be in a standby state and will not handle requests unless the active server fails.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/cmapps.html#wp1043843

That being said, you can include the Publisher here (perhaps as a standby)

as second choice so that the Pub can be left primarily for call processing tasks

Cheers!

Rob

Community Member

Use Publisher as primary IPMA Server

I'd steer clear of IPMA! Divert Overrirde is so much less headache.

Just my two pence/cents worth.

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