ASR 5000 Hardware Platform Overview
▀ ASR 5000 Application Cards
▄ Cisco ASR 5000 Series Product Overview
Event logs at the Informational level are generated for normal situations:
Disk partition completion
RAID discovery results without overwriting
RAID construction completion
RAID disk added or removed
File system initialization
NFS service start
Files copied/removed from CDR module to RAID disk
The hard disk supports SNMP notifications. These are described in the SNMP MIB Manual.
Packet Processing Cards: PSC, PSC2, and PPC
The Packet Services Cards, PSC and PSC2, and Packet Processing Card (PPC) are used with the System Management
Card (SMC) in the ASR 5000 hardware platform. These cards provide the packet processing and forwarding capabilities
within a system. Each packet processing card type supports multiple contexts, which allows you to overlap or assign
duplicate IP address ranges in different contexts.
Important: For Release 9.0, the PPC card is limited to CDMA and HA functionality.
Specialized hardware engines support parallel distributed processing for compression, classification, traffic scheduling,
forwarding, packet filtering, and statistics.
The packet processing cards use control processors to perform packet-processing operations, and a dedicated high-speed
network processing unit (NPU). The NPU does the following:
Provides ―Fast-path‖ processing of frames using hardware classifiers to determine each packet‘s processing
requirements
Receives and transmits user data frames to and from various physical interfaces
Performs IP forwarding decisions (both unicast and multicast)
Provides per interface packet filtering, flow insertion, deletion, and modification
Manages traffic and traffic engineering
Modifies, adds, or strips datalink/network layer headers
Recalculates checksums
Maintains statistics
Manages both external line card ports and the internal connections to the data and control fabrics
The following sections describe the differences between the PSC and PSC2 cards.
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