Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


Gigabit Ethernet MIC with 256b-AES MACsec

Figure 1: 20-Port Gigabit Ethernet MIC with MACsec20-Port Gigabit Ethernet MIC with MACsec
PIC0 ports
PIC1 ports (Ports 8 and 9 are 10-Gbps ports)

Software release

  • Junos 18.3R1 and later

For information on which MPCs support this MIC, see MIC/MPC Compatibility. For information on which MICs are supported on MX Series routers, see MICs Supported by MX Series Routers.


  • 20 Gigabit Ethernet ports

  • Typical power requirement: 1A @ 48V (48 W) Maximum power requirement: 1.25A @ 48V (60 W)

  • Weight: 1.7 lb (0.77 kg)

  • Model number: MIC-MACSEC-20GE

  • Name in the CLI (MIC): 2x10GE SFPP/20x10GE SFP MACSEC

    Name in the CLI (PIC): 1x10GE SFPP/10x1 GE SFP MACSEC


FPCs in the MX240, MX480, MX960 routers and the FEB in the MX80 and MX104 routers undergo an automatic bounce or a reboot when the port speed alternates between 1-Gbps and 10-Gbps.

Hardware features

  • 20 SFP ports supporting 20 SFP optics modules operating in 1-Gbps mode or two SFP+ ports supporting 2 SFP+ optics modules operating in 10-Gbps mode.


    The MIC can operate either in 2x10 - Gbps mode or in 20x1-Gbps mode. Mixed mode (1x10G + 10x1G) is not supported.

  • Up to 20-Gbps of full-duplex traffic

  • Maximum transmission units (MTUs) of up to 9192 bytes


Software features

  • Optical diagnostics and related alarms

  • Virtual Router Redundancy Protocol (VRRP) support

  • IEEE 802.1Q virtual LANs (VLANs) support

  • Source MAC learning

  • MAC accounting and policing—Dynamic local address learning of source MAC addresses

  • Flexible Ethernet encapsulation

  • Multiple tag protocol identifiers (TPID)

  • Media Access Control Security (MACsec)


Syntax: ge-fpc/pic/port where:

  • fpc: Slot in the router where the MPC is installed. The MPCs are represented in the CLI as FPC0 through FPC9.

  • pic: The logical pics in MIC0 are 0 and 1, while in MIC1, they are 2 and 3. Figure 2, illustrates the port numbering for the Gigabit Ethernet MIC with MACsec installed in the MX960.

  • port: 0 through 9.

For example, ge-3/1/0 is the interface for port 0 in PIC 1 on the MPC installed in slot 3.

Figure 2, illustrate the port numbering for the MIC-MACSEC-20GE installed in an MX960.


When the MIC is operating in the 10-Gbps mode, all the other 1-Gbps ports are disabled.

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;=All&pf;=MX+Series.


OK/FAIL LED, one bicolor:

  • Green—MIC is functioning normally.

  • Red—MIC has failed.

Green Status LED, one per port:

  • Off—Not enabled.

  • On steadily—Port is online with no alarms or failures.

Figure 2: Port Numbering for the MIC-MACSEC-20GE Port Numbering for the MIC-MACSEC-20GE

In the 10-Gbps mode, the last two ports of the MIC which are marked as 10G ( [1 / 3] / 8 and [1 / 3] / 9) can be used as 10-Gbps ports.


When the MIC is operating in the 10-Gbps mode, all the other 1-Gbps ports are disabled.