EachDPC includeseither twoor fourPacketForwardingEngines. Each PacketForwarding
Engine enables a throughput of 10 Gbps. Many types of DPCs are available. For a list of
the DPCs supported, see the MX Series Interface Module Reference.
The MX480 supports up to 3 FPCs containing up to 6 PICs or up to 6 MPCs containing
up to 12 MICs. For a list of the supported line cards, see the MX Series Interface Module
Reference.
Three SCBs are available for the MX480 routers—the SCB, the SCBE, and the SCBE2.
Table 4 on page 4 lists the MX480 SCBs.
Table 4: SCB Comparison
Switch Fabric CapacityDescriptionModel Number
5.76 Tbps (half-duplex)Enhanced MX Switch Control Board (SCBE2)SCBE2- MX-BB
2.72 TbpsEnhanced Switch Control Board (SCBE)SCBE-MX-BB
1.44 TbpsSwitch Control Board (SCB)SCB-MX-BB
The connections between DPCs, FPCs, MPCs, and SCBs are organized in three groups:
•
Switch fabric—Connects the interface cards and provides for packet transport between
DPCs, FPCs, and MPCs.
•
Control plane—Gigabit Ethernet links between the combined SCBs/Routing Engines
and each DPC, FPC, or MPC. All board-to-board information is passed over Ethernet
except for low-level status and commands.
•
Management signals—Provide for low-level status diagnostic support.
Related
Documentation
• MX480 Component Redundancy on page 11
• MX480 Chassis Description on page 9
• MX480 Host Subsystem Description on page 25
• MX480 Craft Interface Description on page 14
• MX480 Power System Description on page 99
• MX480 Cooling System Description on page 21
• MX480 Router Physical Specifications on page 119
Copyright © 2017, Juniper Networks, Inc.4
MX480 3D Universal Edge Router Hardware Guide
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