Network Processor Card - Cisco 7120 Series User Manual

Functional Overview

Network Processor Card

The network processor card resides inside the chassis and is shown in
processor card provides the following features:
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The network processor card also performs the following system management functions:
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Note Instructions for removing and replacing memory components on the network processor card, such as the
SDRAM DIMMs, are contained in the
Routers
Cisco 7100 Series VPN Router Installation and Configuration Guide
1-34
Senses OIR of the port adapters
Bridges the PCI buses from the interfaces to packet memory
Arbitrates traffic across the PCI buses
Generates the clock signals for the interfaces on each PCI bus
Sending and receiving routing protocol updates
Managing tables, caches, and buffers
Monitoring interface and environmental status
Providing Simple Network Management Protocol (SNMP) management and the console or Telnet
interface
Accounting and switching of data traffic
Booting and reloading images
Managing port adapters (recognition and initialization during OIR)
document available online and on the Documentation CD.
Installing Field-Replaceable Units in Cisco 7100 Series VPN
Chapter 1 Overview
Figure 1-33. The network
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