Juniper JNP10003-LC2103 Multi-Rate Line Card for MX10003

The Juniper JNP10003-LC2103 is a multi-rate QSFP28 line card for the Juniper MX10003 Universal Routing Platform — the JNP-prefix alphanumeric equivalent to MX10003-LC2103, providing 6-port 100GbE QSFP28 capacity in a single MX10003 chassis slot for service provider core routing, peering, and MPLS backbone deployments.

Key Features

• 6 x QSFP28 ports supporting 100GbE multi-rate interfaces per MX10003 line card slot
• JNP-prefix alphanumeric part number — functionally equivalent to MX10003-LC2103
• Full Junos OS MPLS, segment routing, and L2/L3 VPN feature support
• Hot-plug capable for non-disruptive line card changes in active MX10003 chassis
• Supports 4x25GbE per-port breakout via QSFP28 to 4xSFP28 breakout cables

Product Specifications

• Part Number: JNP10003-LC2103
• Manufacturer: Juniper Networks
• Component Type: Line Card Module (MPC)
• Compatible System: Juniper MX10003
• Ports: 6 x QSFP28 (100GbE)
• Chassis Slots: 1 slot
• Hot-Plug: Yes

Switch & Port Specifications

• Port Speed: 100GbE per QSFP28 port
• Breakout: 4x25GbE per port via QSFP28 to 4xSFP28 breakout
• Total Capacity: Up to 600 Gbps per line card
• Max Ports (3 slots): 18 x 100GbE (1.8 Tbps)

Network & Protocol Specifications

• MPLS: RSVP-TE, LDP, Segment Routing (SR-MPLS, SRv6)
• VPN: L3VPN, L2VPN, EVPN, VPLS
• Multicast: PIM SM/SSM, multicast VPN
• QoS: Hierarchical QoS, traffic shaping and policing
• Management: Junos OS CLI, NETCONF, Juniper Paragon Automation

Use Cases

• Service provider MX10003 core routing with 100GbE QSFP28 port capacity
• Internet peering and transit at IXPs using MX10003 with JNP10003-LC2103 line cards
• MPLS and segment routing backbone line card for high-scale SP deployments
• 4x25GbE breakout for aggregation of 25G server or access connections at core scale

Compatibility

• Juniper MX10003 Universal Routing Platform only
• Functionally interchangeable with MX10003-LC2103 on the same MX10003 chassis
• Accepts standard QSFP28 100G optical transceivers and DAC/AOC cables
• Verify MX10003 Junos OS version for JNP10003-LC2103 line card support

Frequently Asked Questions

What is the difference between JNP10003-LC2103 and MX10003-LC2103?

JNP10003-LC2103 and MX10003-LC2103 are equivalent part numbers for the same 6-port QSFP28 MX10003 line card. Juniper uses both JNP and MX prefix designations across different ordering and documentation systems — both refer to the identical hardware and are interchangeable in the MX10003 chassis.

How many JNP10003-LC2103 cards fit in the MX10003 chassis?

The MX10003 supports up to 3 line card slots. With three JNP10003-LC2103 cards installed, the chassis provides 18 x 100GbE ports and 1.8 Tbps of total interface capacity.

Can JNP10003-LC2103 and MX10003-LC2103 be mixed in the same MX10003 chassis?

Yes — since both part numbers refer to the same hardware, they are fully interchangeable and can coexist in the same MX10003 chassis without any configuration or operational differences.

The Juniper JNP10003-LC2103 delivers 6-port 100GbE QSFP28 line card capacity for the MX10003 Universal Routing Platform under Juniper's JNP alphanumeric part number designation — providing the same core routing, MPLS, and segment routing capability as the MX10003-LC2103 for service provider deployments that reference the JNP prefix ordering system.