Juniper MIC-3D-20GE-SFP-E 20-Port GbE SFP MIC for MX Series

The Juniper MIC-3D-20GE-SFP-E is a 20-port 1GbE SFP Modular Interface Card (MIC) for the Juniper MX Series Universal Routing Platforms — providing high-density GbE SFP interface capacity within MX MPC slots for service provider access aggregation, enterprise core, and multi-service edge deployments requiring large 1G port counts per chassis slot.

Key Features

• 20 x 1GbE SFP ports per MIC for high-density GbE aggregation in MX MPC slots
• Junos 3D Enhanced feature support for L2/L3, MPLS, and subscriber management
• Installs in MPC MIC slots — compatible with MPC2E, MPC3E, and MPC4E generations
• Supports standard 1GbE SFP transceivers (SX, LX, copper) for flexible fiber/copper connectivity
• Hot-plug capable for non-disruptive MIC replacement in active MX chassis

Product Specifications

• Part Number: MIC-3D-20GE-SFP-E
• Manufacturer: Juniper Networks
• Ports: 20 x 1GbE SFP
• Component Type: Modular Interface Card (MIC)
• Compatible Systems: Juniper MX240, MX480, MX960 (via MPC slots)
• Junos Feature Set: 3D Enhanced
• Hot-Plug: Yes

Switch & Port Specifications

• Port Speed: 1GbE per SFP port
• Total Bandwidth: Up to 20 Gbps per MIC
• Transceiver Support: Standard 1GbE SFP (SX, LX, T) transceivers
• MIC Slot: Installs in MPC MIC slots (occupies 1 MIC slot)
• Redundancy: Chassis redundant via MX SCB and RE

Network & Protocol Specifications

• MPLS: LDP, RSVP-TE, static LSPs
• VPN: L2VPN, L3VPN, VPLS for subscriber aggregation
• Subscriber: DHCP, PPPoE, RADIUS subscriber management
• QoS: Hierarchical QoS, traffic shaping per subscriber
• Management: Junos OS CLI, NETCONF

Use Cases

• High-density 1GbE subscriber aggregation for broadband access on MX-series BNG
• Enterprise or SP access edge 1GbE SFP port density expansion via MX MPC slots
• L2VPN and VPLS 1GbE service termination on MX240/MX480/MX960
• Replacing lower-density GbE MICs to increase 1G port count per MPC slot

Compatibility

• Compatible with MPC2E, MPC3E, MPC4E, and MPC-3D series MPCs in MX240/MX480/MX960
• Accepts standard Juniper 1GbE SFP transceivers (SX, LX, T variants)
• Verify MPC generation and Junos OS version for MIC-3D-20GE-SFP-E support
• Not compatible with MX104 or MX10003 (platform-specific MIC form factors)

Frequently Asked Questions

What does the -E suffix in MIC-3D-20GE-SFP-E indicate?

The -E suffix denotes the Enhanced variant with Junos 3D Enhanced feature support, providing additional L2/L3 and subscriber management capabilities compared to the base MIC-3D-20GE-SFP. The Enhanced variant is required for advanced Junos features including H-QoS and subscriber management on MX BNG deployments.

How many MIC-3D-20GE-SFP-E modules can an MPC slot support?

Most MPC generations provide 2 MIC slots per MPC card. Installing one MIC-3D-20GE-SFP-E per MIC slot provides 20 GbE ports per slot, and two MICs per MPC provide 40 GbE ports — with up to 8 MPCs in MX960 providing up to 320 x 1GbE ports in a single chassis.

Can MIC-3D-20GE-SFP-E be hot-swapped in an active MX chassis?

Yes — MX-series MICs support online insertion and removal (OIR) for non-disruptive replacement. Traffic on other MICs in the same MPC continues uninterrupted during MIC-3D-20GE-SFP-E insertion or removal.

The Juniper MIC-3D-20GE-SFP-E delivers 20-port 1GbE SFP density per MIC slot with Junos 3D Enhanced features — providing the high-density GbE aggregation capacity that MX-series subscriber access, L2VPN service delivery, and broadband edge deployments require within a flexible, hot-pluggable MIC form factor.