Cisco Cisco Packet Data Interworking Function (PDIF) Documentation Roadmaps
ST16 Hardware Platform Overview
▀ ST16 Chassis Descriptions
▄ Cisco ASR 5000 Series Product Overview
OL-22937-01
Item
Description
5
Chassis slot number 17: upper right-most line card slot.
6
Chassis slot number 48: lower left-most line card slot
The following sections provide descriptions for each bus:
320 Gbps Switch Fabric
Hosted on the Switch Processor Card (SPC), this IP-based, or packetized, switch fabric provides a transport path for
user data throughout the system. The 320 Gbps switch fabric establishes inter-card communication between the SPC(s)
and other application cards within the chassis, and their respective line cards.
user data throughout the system. The 320 Gbps switch fabric establishes inter-card communication between the SPC(s)
and other application cards within the chassis, and their respective line cards.
32 Gbps Control Bus
The Control Bus features redundant 32 Gbps Ethernet paths that interconnect all control and management processors
within the system. The bus uses a full-duplex Gigabit Ethernet (GE) switching hierarchy from both SPCs to each of the
14 application card slots in the chassis. Each application card is provisioned with a GE switch to meet its specific needs.
This bus also interconnects the two SPC modules.
within the system. The bus uses a full-duplex Gigabit Ethernet (GE) switching hierarchy from both SPCs to each of the
14 application card slots in the chassis. Each application card is provisioned with a GE switch to meet its specific needs.
This bus also interconnects the two SPC modules.
System Management Bus
The System Management Bus supports management access to each component within the chassis. It provides a
communication path from each SPC to every card in the system supporting a 1 Mbps transfer rate to each card. This
allows the SPCs to manage several low-level system functions, such as supplying power, monitoring temperature, board
status, pending card removals, and data path errors, and controlling redundant/secondary path switchovers, card resets,
and other failover features. Additionally, the System Management Bus monitors and controls the fan trays, power filter
units, and alarming functions.
communication path from each SPC to every card in the system supporting a 1 Mbps transfer rate to each card. This
allows the SPCs to manage several low-level system functions, such as supplying power, monitoring temperature, board
status, pending card removals, and data path errors, and controlling redundant/secondary path switchovers, card resets,
and other failover features. Additionally, the System Management Bus monitors and controls the fan trays, power filter
units, and alarming functions.
280 Gbps Redundancy Bus
The Redundancy Bus consists of multiple, full-duplex serial links providing PAC-to-line card redundancy through the
chassis‘ Redundancy Crossbar Cards (RCCs) as shown below.
chassis‘ Redundancy Crossbar Cards (RCCs) as shown below.
Figure 15. Logical View of RCC Links for Failover
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Each RCC facilitates 28 links:
One link with each of the 14 PAC slots