You are taking a hardware inventory to track which hardware components are installed in which router, along with serial numbers.
The following command lists all the hardware components installed in the router:
aviva@router1> show chassis hardware Hardware inventory: Item Version Part number Serial number Description Chassis 25688 M20 Backplane REV 03 710-002334 BB9683 M20 Backplane Power Supply A REV 06 740-001465 005169 AC Power Supply Display REV 04 710-001519 BA4667 M20 FPM Board Routing Engine 0 REV 06 740-003239 9000016755 RE-2.0 Routing Engine 1 REV 06 740-003239 9001018324 RE-2.0 SSB slot 0 REV 02 710-001951 AZ8025 Internet Processor IIv1 SSB slot 1 N/A N/A N/A Backup FPC 0 REV 03 710-003308 BB5185 E-FPC PIC 0 REV 08 750-002303 BB5887 4x F/E, 100 BASE-TX PIC 1 REV 07 750-004745 BC9318 2x CT3-NxDS0 PIC 2 FPC 1 REV 03 710-003308 BF7478 E-FPC PIC 0 REV 03 750-002914 BC0119 2x OC-3 ATM, MM
When you need to find out what hardware is installed in the router, use the show chassis hardware command. The first column of the output lists each hardware component installed in the router, starting with the chassis, which is the router itself. This router, an M20 system, has one power supply, two Routing Engines, one switching board (the SSB), and two FPCs with a total of four PICs. PICs are the network interface cards in the router. All these items are field-replaceable units (FRUs), so you or a service technician can replace them in the field.
The next three columns list the revision number, the Juniper Networks manufacturing part number, and the serial number. This information is very useful if you are tracking what router hardware you have and if you need to replace or return a defective piece of hardware.
The last column has a brief description of each hardware component. This is especially useful for finding out which PICs are installed on which FPC and in which location on the FPC. You need this information when you are configuring the router's interfaces because you must specify the FPC number and the PIC location to identify the interface (see Chapter 7). Most M-series and T-series routers have either four or eight slots for FPCs, and each FPC typically has four locations for PICs. The FPCs are numbered 0 through 7 (or 0 through 3), and the PICs are numbered 0 through 3. The numbering is always indicated on the router chassis itself, but if your routers are in a secured room, you likely don't have physical access to them.
The J-series router is a smaller router and has fewer hardware components:
aviva@RouterA> show chassis hardware Hardware inventory: Item Version Part number Serial number Description Chassis JN002648AA J2300 Routing Engine REV 07 750-009992 AA04451163 RE-J.1 FPC 0 REV 04 750-010739 AC04430335 FPC PIC 0 2x FE, 2x Serial
You can also get information about the memory storage areas on the router:
aviva@router1> show chassis hardware detail Hardware inventory: Item Version Part number Serial number Description Chassis 25708 M20 Backplane REV 03 710-002334 BB9738 M20 Backplane Power Supply A REV 06 740-001465 005234 AC Power Supply Display REV 04 710-001519 BA4681 M20 FPM Board Routing Engine 0 REV 06 740-003239 1000224893 RE-2.0 Routing Engine 0 58000007348d9a01 RE-2.0 ad0 91 MB SanDisk SDCFB-96 i3238140903 Compact Flash ad1 11513 MB IBM-DARA-212000 AH0AHGN1017 Hard Disk Routing Engine 1 REV 06 740-003239 9000022146 RE-2.0 Routing Engine 1 d800000734745701 RE-2.0 ad0 91 MB SanDisk SDCFB-96 ggbsc410020 Compact Flash ad1 8063 MB TOSHIBA MK2016GAP Y0T39909T Hard Disk SSB slot 0 REV 02 710-001951 AZ8112 Internet Processor IIv1 SSRAM bank 0 REV 02 710-001385 242525 2 Mbytes SSRAM bank 1 REV 02 710-001385 242741 2 Mbytes SSRAM bank 2 REV 02 710-001385 242886 2 Mbytes SSRAM bank 3 REV 02 710-001385 242482 2 Mbytes SSB slot 1 N/A N/A N/A Backup FPC 0 REV 03 710-003308 BD8455 E-FPC SSRAM REV 02 710-001385 241669 2 Mbytes SDRAM bank 0 REV 01 710-000099 0003409 64 Mbytes SDRAM bank 1 REV 01 710-000099 0003408 64 Mbytes PIC 0 REV 08 750-002303 AZ5310 4x F/E, 100 BASE-TX PIC 1 REV 07 750-004745 BC9368 2x CT3-NxDS0 PIC 2 REV 03 750-002965 HC9279 4x CT3 FPC 1 REV 03 710-003308 BB9032 E-FPC SSRAM REV 01 710-001385 V00818 2 Mbytes SDRAM bank 0 REV 01 710-000099 0003803 64 Mbytes SDRAM bank 1 REV 01 710-000099 0003847 64 Mbytes PIC 0 REV 03 750-002914 BC0131 2x OC-3 ATM, MM
Router Configuration and File Management
Basic Router Security and Access Control
Routing Policy and Firewall Filters