Cisco 7200 VXR User Manual page 13

Chapter 1 Cisco 7200 VXR Product Overview
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Two environmental sensors for monitoring the cooling air as it leaves the chassis
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• Boot ROM for storing sufficient code for booting the Cisco IOS software; the NPE-G1, NSE-1,
NPE-400, NPE-300, NPE-225, NPE-200, and NPE-175 have boot ROM.
The network processing engines and network services engine perform the following system management
functions:
Sending and receiving routing protocol updates
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Managing tables, caches, and buffers
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Monitoring interface and environmental status
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• Providing Simple Network Management Protocol (SNMP) management through the console and
Telnet interface
Accounting for and switching of data traffic
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• Booting and reloading images
• Managing port adapters (recognition and initialization during online insertion and removal)
The following figures and memory tables provide information about your NPE or NSE:
• NPE-G1 is represented by
lists memory configurations.
• NSE-1 is represented by
lists memory configurations.
• The NPE-400 is represented by
Table 1-7
NPE-300 is represented by
•
Table 1-9
NPE-225 is represented by
•
Table 1-11
78-5469-04 B0
The NPE-400 has three levels of cache: a primary and a secondary cache that are internal to the
microprocessor, and a tertiary 4-MB external cache that provides additional high-speed storage
for data and instructions.
The NPE-300 has three levels of cache: a primary and a secondary cache that are internal to the
microprocessor, and a tertiary 2-MB external cache that provides additional high-speed storage
for data and instructions.
The NPE-225 has two levels of cache: a primary cache that is internal to the processor and a
secondary 2-MB external cache that provides additional high-speed storage for data and
instructions.
The NPE-200 has unified cache SRAM that functions as the secondary cache for the
microprocessor. (The primary cache is within the microprocessor.)
The NPE-175 has two levels of cache: a primary cache that is internal to the processor and a
secondary 2-MB external cache that provides additional high-speed storage for data and
instructions.
The NPE-150 has unified cache SRAM that functions as the secondary cache for the
microprocessor. (The primary cache is within the microprocessor.)
The NPE-100 has unified cache SRAM that functions as the secondary cache for the
microprocessor. (The primary cache is within the microprocessor.)
Figure
Figure
lists memory configurations.
Figure
lists memory configurations.
Figure
lists memory configurations.
1-5. Table 1-2 lists NPE-G1 memory specifications, and
1-6. Table 1-4 lists NSE-1 memory specifications, and
Figure 1-7. Table 1-6 lists NPE-400 memory specifications, and
1-8. Table 1-8 lists NPE-300 memory specifications, and
1-9. Table 1-10 lists NPE-225 memory specifications, and
Cisco 7200 VXR Installation and Configuration Guide
Field-Replaceable Units
Table 1-3
Table 1-5
1-13