Quidway® NetEngine 40E Core Router Switch and Route Processing Unit
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Quidway® NetEngine 40E Core Router
Switch and Route Processing Unit
Overview
The Switch and Route Processing Unit (SRU) is the core of the Quidway® NetEngine 40E Core
Router (“NE40E” hereinafter).
The NE40E has altogether 12 slots, two of which are for SRUs. The SRU supports hot plugging.
Each NE40E must be configured with one or two SRUs. It is recommended that two SRUs be
configured to implement redundant backup and raise the system reliability. Each SRU must be
configured with one or two Compact Flash (CF) cards (512MB) and memory cards(1GB). It is
recommended that two CF cards and two memory cards be configured to enhance the overall
performance of the system.
CR52-SRUA
The SRU mainly consists of the Main Processing Unit (MPU) and the Switch Fabric Unit (SFU). In
addition, it integrates the synchronous clock module (SYN), the line clock module (CLK), the
management communication module (MCX) and the CF card module. It is an integration of multiple
functional modules. As the system control and management center, and the system clock source
and maintenance&management unit, the SRU board completes control plane and system
maintenance plane functions.
The detailed functions are as follows:
1. System control and management center
z
Routing protocol execution
All the routing protocol packets are sent by the forwarding engine to the SRU board for
processing. The SRU board also broadcasts and filters routing packets and executes routing
policies.
