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switching board (the SSB), and two FPCs with a total of four PICs. PICs are the network<br />

interface cards in the router. All these items are field-replaceable units (FRUs),<br />

so you or a service technician can replace them in the field.<br />

The next three columns list the revision number, the Juniper Networks manufacturing<br />

part number, and the serial number. This information is very useful if you are<br />

tracking what router hardware you have and if you need to replace or return a defective<br />

piece of hardware.<br />

The last column has a brief description of each hardware component. This is especially<br />

useful for finding out which PICs are installed on which FPC and in which<br />

location on the FPC. You need this information when you are configuring the<br />

router’s interfaces because you must specify the FPC number and the PIC location to<br />

identify the interface (see Chapter 7). Most M-series and T-series routers have either<br />

four or eight slots for FPCs, and each FPC typically has four locations for PICs. The<br />

FPCs are numbered 0 through 7 (or 0 through 3), and the PICs are numbered 0<br />

through 3. The numbering is always indicated on the router chassis itself, but if your<br />

routers are in a secured room, you likely don’t have physical access to them.<br />

The J-series router is a smaller router and has fewer hardware components:<br />

aviva@RouterA> show chassis hardware<br />

Hardware inventory:<br />

Item Version Part number Serial number Description<br />

Chassis JN002648AA J2300<br />

Routing Engine REV 07 750-009992 AA04451163 RE-J.1<br />

FPC 0 REV 04 750-010739 AC04430335 FPC<br />

PIC 0<br />

2x FE, 2x Serial<br />

You can also get information about the memory storage areas on the router:<br />

aviva@router1> show chassis hardware detail<br />

Hardware inventory:<br />

Item Version Part number Serial number Description<br />

Chassis 25708 M20<br />

Backplane REV 03 710-002334 BB9738 M20 Backplane<br />

Power Supply A REV 06 740-001465 005234 AC Power Supply<br />

Display REV 04 710-001519 BA4681 M20 FPM Board<br />

Routing Engine 0 REV 06 740-003239 1000224893 RE-2.0<br />

Routing Engine 0<br />

58000007348d9a01 RE-2.0<br />

ad0 91 MB SanDisk SDCFB-96 i3238140903 Compact Flash<br />

ad1 11513 MB IBM-DARA-212000 AH0AHGN1017 Hard Disk<br />

Routing Engine 1 REV 06 740-003239 9000022146 RE-2.0<br />

Routing Engine 1<br />

d800000734745701 RE-2.0<br />

ad0 91 MB SanDisk SDCFB-96 ggbsc410020 Compact Flash<br />

ad1 8063 MB TOSHIBA MK2016GAP Y0T39909T Hard Disk<br />

SSB slot 0 REV 02 710-001951 AZ8112 Internet Processor IIv1<br />

SSRAM bank 0 REV 02 710-001385 242525 2 Mbytes<br />

SSRAM bank 1 REV 02 710-001385 242741 2 Mbytes<br />

SSRAM bank 2 REV 02 710-001385 242886 2 Mbytes<br />

SSRAM bank 3 REV 02 710-001385 242482 2 Mbytes<br />

SSB slot 1 N/A N/A N/A Backup<br />

Gathering Hardware Inventory Information | 59<br />

This is the Title of the Book, eMatter Edition<br />

Copyright © 2008 O’Reilly & Associates, Inc. All rights reserved.

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