Event ID - 2903

Event Id2903
SourceAvWm
Description<Exchange server name> has gone offline (AvCsMgr:3982)
Note:
The <Exchange server name> is replaced with the name of the Exchange server that is detected to be in the down state. In the above example, AvCsMgr:3982 represents the name of the Cisco Unity service that detected the server to be offline, and the process ID of that service.
Event InformationAccording to Cisco <brSolution
The AvWm component within Cisco Unity is responsible for determining the state of the Exchange servers with which it interacts. The AvWm component periodically tests each Exchange server being monitored by Cisco Unity at 15-second intervals.
The AVWm component test process has two steps:
Open the Service Control Manager on each Exchange server.
Query the status of the MSExchange services (MSExchangeIS and MSExchangeDS services for Exchange 5.5, and the MSExchangeIS service for Exchange 2000) to determine if the services are in the running state.
While this test is not an absolute indication of Exchange server status, it does give a good glimpse of the health of both the network connectivity to the Exchange server and the Exchange server itself
.
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