Cisco CRS Hardware Components

AB.

In a Cisco Carrier Routing System (CRS), the system can be partitioned into multiple independent systems using Service Separation Architecture (SSA). Each system is managed by a separate Route Processor (RP), and each RP can have multiple Switch Fabric Cards (SFCs) and Line Card Chassis (LCCs). The RP and its associated SFCs and LCCs form a System Domain Router (SDR) that operates as an independent system.

If a CRS system is partitioned into multiple SDRs, one of the RPs is designated as the owner and manages the system configuration and resources. The other RPs are designated as non-owners and operate as clients of the owner. Non-owner SDRs do not have direct access to the system resources, and they rely on the owner SDR to provide access to the resources they need.

Regarding the hardware components associated with non-owner SDR systems, the answer options are:

A. DRP: The Distributed Route Processor (DRP) is a redundant RP that provides additional processing power and redundancy for the owner RP. Non-owner SDRs do not have a DRP, so this option is not associated with non-owner SDR systems.

B. Line card: The Line Card Chassis (LCC) is a component that houses the line cards that provide the interfaces for the traffic. Both the owner and non-owner SDRs have LCCs, so this option is not specific to non-owner SDR systems.

C. Switch Fabric Cards (SFCs): The Switch Fabric Cards (SFCs) provide the interconnection between the line cards and the RPs. Both the owner and non-owner SDRs have SFCs, so this option is not specific to non-owner SDR systems.

D. FCC: There is no hardware component in a Cisco CRS system called the FCC. Therefore, this option is incorrect.

E. LCC: The Line Card Chassis (LCC) is a component that houses the line cards that provide the interfaces for the traffic. Both the owner and non-owner SDRs have LCCs, so this option is not specific to non-owner SDR systems.

Therefore, the correct answers are A. DRP and D. FCC.