What is the role of a private network in UCCE/PCCE?

In UCCE/PCCE architectures, the private network is a dedicated, high-speed network connection between the duplexed components (Side A and Side B). Its primary role is to transmit state transfer and synchronization messages, ensuring that both sides of the duplex pair remain perfectly in sync. This synchronization is critical for fault tolerance, allowing seamless failover without dropping active calls if one side of the system fails.

A: Configuration updates from the Logger to the Administration & Data Server (AW) occur over the visible (public) network, not the private network. C: Communication between the Peripheral Gateway (PG) and the Call Router occurs over the visible network. D: The visible network handles communication with external components and the public network, whereas the private network is strictly for internal duplex synchronization.

1. Cisco Unified Contact Center Enterprise Design Guide, Release 12.5(1). Section: "Network Architecture" and "Private Network."

2. Cisco Packaged Contact Center Enterprise Design Guide, Release 12.5(1). Section: "Fault Tolerance and Network Requirements."