Cisco Cisco IPCC Web Option 维护手册
Single failures are typically caused by system crashes, operating system failures, or disk failures.
However, LAN outages and IP router failures can also cause single failures. The following
figure shows five possible Central Controller failure scenarios.
However, LAN outages and IP router failures can also cause single failures. The following
figure shows five possible Central Controller failure scenarios.
Figure 3: Central Controller Failure Scenarios
Each of these failures affects system functions differently:
•
Single Logger. If a single Logger (whether historical or configuration Logger) goes off-line,
the system software runs without interruption. All call routing and reporting functions remain
available. The CallRouters continue to operate as a synchronized pair. The remaining Logger
runs simplexed. When the failed Logger returns to service, the Loggers return to synchronized
execution.
the system software runs without interruption. All call routing and reporting functions remain
available. The CallRouters continue to operate as a synchronized pair. The remaining Logger
runs simplexed. When the failed Logger returns to service, the Loggers return to synchronized
execution.
Administration Guide for Cisco Unified ICM/Contact Center Enterprise & Hosted Release 8.x
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Chapter 2: Fault Tolerance
Central Controller