Getting Started with iControl > Key Concepts > Lookup Services > About the Alarm Publication Lookup Table
 
About the Alarm Publication Lookup Table
 

NOTE: The current version of iControl has a built-in feature called multi-GSM that eliminates the need for specifying alarm publication lookup locations. The description below and procedures being kept in this User Guide in support of legacy iControl installations. Please consult with Grass Valley Technical Support before making any modifications to your Alarm publication lookup table (click HERE).

In a basic iControl configuration, services such as the Densité Manager or the Imagestore Manager will automatically detect—and begin publishing alarm status information to—the GSM(s) on their own subnet.
If, however, you wish to have these services connect to GSMs running on Application Servers on other subnets, you must explicitly specify the GSM locations. You do this by typing the IP address of the target Application Server (on the remote subnet) in the Alarm publication lookup table of the Application Server running the Densité, Imagestore, or other service on the local subnet.
If the remote GSM is registered in a lookup service on another Application Server in its subnet, you can use the IP address of that server instead.
For example, let’s say you want a Densité frame to publish its alarms and status information to GSMs on two different subnets. The table below describes a possible configuration:

[ Table ]

 
 
Device
Services
Subnet
IP Address
Densité Frame
--
10.10.03
10.10.03.99
Application Server 1 (AS1)
Densité Manager
10.10.03
10.10.03.11
Application Server 2 (AS2)
Lookup Service, GSM
10.10.03
10.10.03.22
Application Server 3 (AS3)
Lookup Service
10.10.04
10.10.04.33
Application Server 4 (AS4)
GSM
10.10.04
10.10.04.44
When Application Server 1 (AS1) starts up, its Densité Manager service will discover the enabled Alarm publication lookup table on AS2 automatically, and begin publishing to the GSM on AS2, because they are on the same subnet. In order to have the Densité Manager publish to the GSM on AS4, you must include one of the following in the Alarm publication lookup table of AS1:
the IP address of AS4, in which case the Densité Manager will publish to GSMs on AS2 and AS4
the IP address of AS3, in which case the Densité Manager will publish to the GSM on AS2 and any other GSM on subnet 10.10.04 that is registered in the lookup service on AS3