Chapter 6 Line Card Components And Descriptions; Interface Modules-Dpcs; Mx240 Dense Port Concentrator (Dpc) Description - Juniper mx240 Hardware Manual

CHAPTER 6
Line Card Components and Descriptions
Interface Modules—DPCs

MX240 Dense Port Concentrator (DPC) Description

Copyright © 2016, Juniper Networks, Inc.
Interface Modules—DPCs on page 47
Interface Modules—FPCs and PICs on page 54
Interface Modules—MPCs and MICs on page 60
MX240 Dense Port Concentrator (DPC) Description on page 47
MX240 DPC Port and Interface Numbering on page 49
MX240 Dense Port Concentrator (DPC) LEDs on page 52
DPCs Supported on MX240, MX480, and MX960 Routers on page 52
A Dense Port Concentrator (DPC) is optimized for Ethernet density and supports up to
40 Gigabit Ethernet or four 10-Gigabit Ethernet ports (see
combinations of Gigabit Ethernet and 10-Gigabit ports are available in various DPC
models. For more information about these models, see the
Reference
The DPC assembly combines packet forwarding and Ethernet interfaces on a single
board, with either two or four 10-Gbps Packet Forwarding Engines. Each Packet Forwarding
Engine consists of one I-chip for Layer 3 processing and one Layer 2 network processor.
The DPCs interface with the power supplies and Switch Control Boards (SCBs).
The router has two dedicated line card slots for DPCs, MPCs, or FPCs. DPCs install
horizontally in the front of the router (see
numbered supports either one DPC or one SCB. The DPC slots are numbered
1/0
and , bottom to top. A DPC can be installed in any slot on the router that supports DPCs.
2
You can install any combination of DPC types in the router.
DPCs are hot-removable and hot-insertable. When you install a DPC in an operating
router, the Routing Engine downloads the DPC software, the DPC runs its diagnostics,
and the Packet Forwarding Engines housed on the DPC are enabled. Forwarding on other
DPCs continues uninterrupted during this process.
Figure 19 on page
MX Series Interface Module
Figure 19 on page 48). One multifunction slot
48). Other
, ,
1/0 1
47