Hardware Component Overview
FPCs, while the second forwards notification of routing decisions to the
I/O Manager ASICs.
One Internet Processor II ASIC—Performs route lookups and makes routing
decisions.
Parity-protected SSRAM—Stores the forwarding table.
Processor subsystem—Manages SFM functions and handles exception packets.
The processor has the following components:
One PowerPC 603e processor
Parity-protected Level 2 cache
Parity-protected DRAM
EEPROM—Stores the serial number and revision level.
Offline button—Prepares the SFM for removal from the router when pressed.
Two LEDs—Indicate SFM status. There is a green one labeled
OK
and an amber
one labeled
FAIL
. Table 7 describes the LED states.
Ejector handles and locking tabs—Control the locking system that secures the
SFM in the chassis.
NOTE:
For specific information about SFM components (for example, the amount of
SSRAM and DRAM), issue the
show chassis sfm detail
command.
Figure 8: Switching and Forwarding Module
1184
Offline button
Ejector handle
Ejector locking tab
LEDs
Packet Forwarding Engine
21
Содержание Internet Router M160
Страница 12: ...M160 Internet Router Hardware Guide xii Table of Contents ...
Страница 16: ...M160 Internet Router Hardware Guide xvi List of Figures ...
Страница 18: ...M160 Internet Router Hardware Guide xviii List of Tables ...
Страница 24: ...M160 Internet Router Hardware Guide xxiv Requesting Support ...
Страница 26: ...2 Product Overview ...
Страница 30: ...M160 Internet Router Hardware Guide 6 Safety Requirements Warnings and Guidelines ...
Страница 66: ...M160 Internet Router Hardware Guide 42 Cable Management System ...
Страница 80: ...M160 Internet Router Hardware Guide 56 Routing Engine Architecture ...
Страница 82: ...58 Initial Installation ...
Страница 104: ...M160 Internet Router Hardware Guide 80 Unpacking the Router ...
Страница 148: ...M160 Internet Router Hardware Guide 124 Configuring the JUNOS Internet Software ...
Страница 150: ...126 Hardware Maintenance Replacement and Troubleshooting Procedures ...
Страница 242: ...M160 Internet Router Hardware Guide 218 Troubleshooting the Power System ...
Страница 244: ...220 Appendixes ...
Страница 292: ...M160 Internet Router Hardware Guide 268 Packing Components for Shipment ...
Страница 301: ...Part 5 Index Index 277 ...
Страница 302: ...278 Index ...