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MX10K-LC2101 Line Card

The MX10K-LC2101 line card is a fixed configuration MPC. It does not contain separate slots for Modular Interface Cards (MICs). The MX10004 routers support four and the MX10008 routers support eight MX10K-LC2101 MPCs. The line card provides a maximum bandwidth of 2.4Tbps and has six Packet Forwarding Engines, each providing a maximum bandwidth of up to 400 Gbps. The line card plugs in to the MX10004, MX10008, and MX10016 routers horizontally at the front of the chassis.


OFFLINE button


Lane LEDs




Port LEDs

Software release

  • Junos OS Release 18.2R1 and later when installed in MX10008 and Mx10016.

  • Junos OS Release 22.3R1 and later when installed in MX10004.


  • Weight: 31.57 lb (14.32 kg)

  • Model number: JNP10K-LC2101

  • Name in the CLI: JNP10K-LC2101

  • Dimensions: Height = 1.89 in. (48.01 mm), Width = 17.2 in (436.88 mm), Depth = 19.05 in. (484 mm) (Excluding FRU ejector)

Hardware features

  • Fixed-configuration MPC with 10-Gbps, 40-Gbps, and 100-Gbps port speeds.

  • All the ports are Multi-Rate ports. Each port is capable of supporting either 100 Gbps or 40 Gbps or 10 Gbps (4x10-Gbps with breakout cable).

  • Line-rate throughput of up to 2.4 Tbps.

  • Six Packet Forwarding Engines, each providing a maximum bandwidth of 400 Gbps.

  • EA chipsets for increased scaling for bandwidth, subscribers, and services.

  • Supports the Switch Fabric Boards, JNP10004-SF2, JNP10008-SF, JNP10008-SF2, and JNP10016-SF.

  • Supports maximum transmission units (MTUs) from 256 bytes through 16,000 bytes for transit traffic, and from 256 bytes through 9,500 bytes for host-bound packets.

Software features

  • Supports rate selectability at the port level.

  • By default, the ports are configured as 10-Gigabit Ethernet ports.

  • Optical diagnostics and related alarms.

Power requirements

Line-rate throughput of 2.4 Tbps:

  • Power consumption at different temperatures:

    25° C: 1335 W

    40° C: 1425 W



  • Steady green—MPC is functioning normally.

  • Yellow—MPC has failed.

Port LED—Link

  • Off—Port is not enabled.

  • Green—Port link is up with no alarms or failures.

  • Red—Port link is down with alarms.


When a QSFP+ port is configured for the 10-Gigabit mode with a breakout cable, the link status for the 10-Gigabit port is indicated with the addition of four LEDs provided on the line card. The lane LEDs for the corresponding port indicates the port status.

Like the port status LED, each individual lane LED supports four states as: OFF, AMBER, GREEN, RED. See MPC and MIC Lane LED Scheme Overview for more details.

For the 40-Gigabit mode the lane number LED is not applicable. The port LED indicates the port status, irrespective of whichever lane number LED is ON.

Cables and connectors


You can use the Hardware Compatibility Tool to find information about the pluggable transceivers supported on your Juniper Networks device.

The list of supported transceivers for the MX Series is located at MX Series Supported Transceivers.