Cisco Reman Packet SVC Card PSC3 64G

The PSC3 provides increased aggregate throughput and performance and a higher number of subscriber sessions than other ASR 5000 packet processing cards. Specialized hardware engines support parallel distributed processing for compression, classification, traffic scheduling, forwarding, packet filtering, and statistics. The PSC3 features two 6-core CPUs and 64 GB of RAM. These processors run a single copy of the operating system. The operating system running on the PSC3 treats the two core processors as a 6-way multi-processor. To optimize network efficiency and minimize down time, the system supports 1: n redundancy for PSC3s. If session recovery is enabled, the minimum number of PSC3s per chassis increases from one to four cards. Three PSC3s are active and one PSC3 is standby (redundant). This minimum configuration protects against software failures only. In addition to increased hardware requirements, session recovery may reduce subscriber session capacity, performance, and data throughput. In the event of PSC3 failure, tasks are migrated from the active PSC3 to the standby card. The line card installed behind the PSC3 that was formerly active maintains the interfaces to the external network equipment. Redundancy Crossbar Cards (RCCs) provide a path for signaling and data traffic between the line card and the now active packet processing card.