CHAPTER 8
Switch Fabric Components and
Descriptions
•
M120 Forwarding Engine Boards (FEBs) Description on page 75
•
M120 Forwarding Engine Boards (FEBs) LEDs on page 77
M120 Forwarding Engine Boards (FEBs) Description
The M120 router provides redundant Forwarding Engine Boards (FEBs). The FPC (the
board that hosts the PICs) is separate from the FEB (the board that handles the packets).
FEBs provide route lookup and forwarding functions from FPCs and CFPCs. FPCs and
CFPCs are located on the front of the chassis, and provide power and management to
the PICs through the midplane. The midplane relays signals to the FEB (inserted from
the rear of the chassis, which processes the packets.
The midplane architecture allows any FEB to carry traffic for any FPC. You can configure
the mapping of FPCs to FEBs. If a FEB fails, a backup FEB can quickly take over packet
forwarding.
75
Copyright © 2018, Juniper Networks, Inc.
Summary of Contents for M120
Page 12: ...Copyright 2018 Juniper Networks Inc xii M120 Multiservice Edge Router Hardware Guide ...
Page 20: ...Copyright 2018 Juniper Networks Inc xx M120 Multiservice Edge Router Hardware Guide ...
Page 26: ...Copyright 2018 Juniper Networks Inc xxvi M120 Multiservice Edge Router Hardware Guide ...
Page 28: ...Copyright 2018 Juniper Networks Inc 2 M120 Multiservice Edge Router Hardware Guide ...
Page 32: ...Copyright 2018 Juniper Networks Inc 6 M120 Multiservice Edge Router Hardware Guide ...
Page 44: ...Copyright 2018 Juniper Networks Inc 18 M120 Multiservice Edge Router Hardware Guide ...
Page 76: ...Copyright 2018 Juniper Networks Inc 50 M120 Multiservice Edge Router Hardware Guide ...
Page 104: ...Copyright 2018 Juniper Networks Inc 78 M120 Multiservice Edge Router Hardware Guide ...
Page 106: ...Copyright 2018 Juniper Networks Inc 80 M120 Multiservice Edge Router Hardware Guide ...
Page 118: ...Copyright 2018 Juniper Networks Inc 92 M120 Multiservice Edge Router Hardware Guide ...
Page 136: ...Copyright 2018 Juniper Networks Inc 110 M120 Multiservice Edge Router Hardware Guide ...
Page 144: ...Copyright 2018 Juniper Networks Inc 118 M120 Multiservice Edge Router Hardware Guide ...
Page 154: ...Copyright 2018 Juniper Networks Inc 128 M120 Multiservice Edge Router Hardware Guide ...
Page 176: ...Copyright 2018 Juniper Networks Inc 150 M120 Multiservice Edge Router Hardware Guide ...
Page 204: ...Copyright 2018 Juniper Networks Inc 178 M120 Multiservice Edge Router Hardware Guide ...
Page 208: ...Copyright 2018 Juniper Networks Inc 182 M120 Multiservice Edge Router Hardware Guide ...
Page 220: ...Copyright 2018 Juniper Networks Inc 194 M120 Multiservice Edge Router Hardware Guide ...
Page 238: ...Copyright 2018 Juniper Networks Inc 212 M120 Multiservice Edge Router Hardware Guide ...
Page 264: ...Copyright 2018 Juniper Networks Inc 238 M120 Multiservice Edge Router Hardware Guide ...
Page 280: ...Copyright 2018 Juniper Networks Inc 254 M120 Multiservice Edge Router Hardware Guide ...
Page 286: ...Copyright 2018 Juniper Networks Inc 260 M120 Multiservice Edge Router Hardware Guide ...
Page 288: ...Copyright 2018 Juniper Networks Inc 262 M120 Multiservice Edge Router Hardware Guide ...
Page 308: ...Copyright 2018 Juniper Networks Inc 282 M120 Multiservice Edge Router Hardware Guide ...
Page 320: ...Copyright 2018 Juniper Networks Inc 294 M120 Multiservice Edge Router Hardware Guide ...
Page 322: ...Copyright 2018 Juniper Networks Inc 296 M120 Multiservice Edge Router Hardware Guide ...
Page 336: ...Copyright 2018 Juniper Networks Inc 310 M120 Multiservice Edge Router Hardware Guide ...
Page 344: ...Copyright 2018 Juniper Networks Inc 318 M120 Multiservice Edge Router Hardware Guide ...
Page 354: ...Copyright 2018 Juniper Networks Inc 328 M120 Multiservice Edge Router Hardware Guide ...
Page 382: ...Copyright 2018 Juniper Networks Inc 356 M120 Multiservice Edge Router Hardware Guide ...