Cisco Systems XR 12410 manual Switch Fabric and Alarm Card Overview

Chapter 1 Cisco XR 12410 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 10-Gbps per-slot switch fabric.

Each SFC or CSC provides a 10-Gbps full-duplex connection to each line card in the system. For example, in a Cisco XR 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.

Figure 1-2shows 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 XR 12410 router support online insertion and removal (OIR), which allows you to remove and replace a card while the router remains powered on.

	Cisco XR 12410 Router Installation Guide
OL-13832-01		1-9