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Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01
Chapter 1 Cisco 12010, Cisco 12410, and Cisco 12810 Series Router Overview
Switch Fabric and Alarm Card Overview
Switch Fabric and Alarm Card Overview
The switch fabric provides synchronized gigabit-speed connections between line
cards and the route processor. The 9-slot switch fabric and alarm card cage
contain:
•
2 clock scheduler cards (CSCs)
•
5 switch fabric cards (SFCs)
•
2 alarm cards
Note
The two alarm cards that are located in the switch fabric and alarm card
cage are not part of the switch fabric.
One CSC and four SFCs are required for an active switch fabric; the second CSC
and the fifth SFC provide redundancy. The combination of CSCs and SFCs make
up the 2.5-Gbps, 10-Gbps, or 40-Gbps per-slot switch fabric.
Routers are identified by the switch fabrics they use:
•
Cisco 12010: 2.5-Gbps switch fabric
•
Cisco 12410: 10-Gbps switch fabric
•
Cisco 12810: 40-Gbps switch fabric
Each SFC or CSC provides a 2.5-Gbps, 10-Gbps, or 40-Gbps full-duplex
connection to each line card in the system. For example, in a Cisco 12410 router
with 8 line cards, each with 2 x 10 Gbps capacity (full duplex), the system
switching bandwidth is 8 x 20 Gbps = 160 Gbps.
shows the slot configuration in the switch fabric and alarm card cage.
The labeling identifies the type of card for each slot and can only be seen when
the air filter door is opened.
Note
Cisco 12000 series routers support online insertion and removal (OIR), allowing
you to remove and replace a card while the router remains powered on.
Summary of Contents for 12010 series
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