1-9
Cisco 7206 Installation and Configuration Guide
OL-5102-02
Chapter 1 Product Overview
Field-Replaceable Units
The network processing engines perform the following system management functions:
•
Sending and receiving routing protocol updates
•
Managing tables, caches, and buffers
•
Monitoring interface and environmental status
•
Providing Simple Network Management Protocol (SNMP) management through the console and
Telnet interface
•
Accounting for and switching of data traffic
•
Booting and reloading images
•
Managing port adapters (recognition and initialization during online insertion and removal)
Figure 1-4
shows the NPE-100,
Figure 1-5
shows the NPE-150,
Figure 1-6
shows the NPE-175,
Figure 1-7
shows the NPE-200, and
Figure 1-8
shows the NPE-225.
Figure 1-4
NPE-100
H8822
System
controller
Temperature
sensor
Temperature
sensor
Handle
Midplane
connectors
U12
Bank 1
DRAM SIMMs
U4
U25
U18
R4700
microprocessor
Captive
installation
screw
Bank 0
NETWORK PROCESSING ENGINE-100
