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Enhanced mode provided strong performance for core aggregation.
MX10003-LC2103-E
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JNP1003/MX10003 Modular Port Concentrator, 6xQSFP+, 1 MIC Sl...
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MX10003-LC2103-E
- Description:
- JNP1003/MX10003 Modular Port Concentrator, 6xQSFP+, 1 MIC Slot - E (Enhanced) Mode
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- Brand:
- Juniper
- GTIN:
- 832938042070
- Condition:
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MX10003-LC2103-E Overview
MX10003-LC2103-E is a high-performance Ethernet module engineered for data centers and enterprise networks. Designed to deliver up to 10Gbps of data rate via its SFP+ connector, this PCIe form factor network card ensures seamless integration with routers, switches, and servers while efficiently supporting TCP/IP protocol communications.
Built for reliability and speed, MX10003-LC2103-E is ideal for upgrading network interfaces and expanding data center capacity. Its robust design offers features such as auto-negotiation, Wake-on-LAN, jumbo frames, and QoS support, making it a perfect choice for critical network applications and high-speed connectivity requirements.
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Request bulk order quote for MX10003-LC2103-E for additional pricing. Browse the full Juniper Router Mx10000 Modules & Cards series or explore all Juniper products.
MX10003-LC2103-E Specifications
- Product Type
- Network Card
- Module Type
- Ethernet
- Data Rate
- 10G
- Connector Type
- SFP+
- Supported Protocols
- TCP/IP
- Form Factor
- PCIe
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Arista / Dell / HP
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS
- Power Consumption
- 15W
- Interface Ports
- Ethernet / SFP+
- Expansion Slots
- N/A
- Product Name
- MX10003-LC2103-E
- Height
- 1.2 inches
- Width
- 5.5 inches
- Depth
- 0.8 inches
- Weight
- 1.5 lbs
MX10003-LC2103-E Use Case
High-Density Data Center Spine Aggregation with MX10003-LC2103-E-JNP1003
In hyperscale data centers requiring seamless 600GbE spine aggregation, the MX10003-LC2103-E-JNP1003 delivers 6xQSFP+ ports and 1 MIC slot in Enhanced mode. This use case consolidates multiple 100GbE uplinks into a single modular unit, reducing rack space and power consumption while boosting inter-rack throughput by up to 30%. Outcome: optimized bandwidth utilization, lower OPEX/CAPEX, and scalable platform growth.
Ultra-Low-Latency Financial Trading Network with MX10003-LC2103-E-JNP1003
In high-frequency trading environments where nanoseconds can impact profitability, deploying the MX10003-LC2103-E-JNP1003 in Enhanced mode ensures sub-100ns latency across 6xQSFP+ 100GbE links. Traders benefit from deterministic forwarding and congestion avoidance, leading to faster order execution. Outcome: enhanced transactional performance, reduced market risk, and improved ROI for financial institutions.
Multi-Tenant Cloud Edge Aggregation Using MX10003-LC2103-E-JNP1003
Cloud service providers leverage the MX10003-LC2103-E-JNP1003 modular port concentrator at edge PoPs to onboard multiple tenants over 6x100Gbps QSFP+ ports. Enhanced mode enables dynamic bandwidth provisioning, per-tenant QoS, and real-time telemetry via the MIC slot. Outcome: SLA-compliant performance, simplified multi-tenant management, and accelerated service delivery across distributed cloud edges.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| MX10003-LC2103-E |  JNP10K-RE1-LT-R |  MX10K-LC2101-E |  MX10K-LC2101-R |  MX10K-LC2101-EQ | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Juniper | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP |
| Connector Type | SFP+ | SFP+ | SFP+ | SFP+ | SFP+ |
| Data Rate | 10G | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Depth | 0.8 inches | 7.0 inches | N/A | 4.5 inches | 0.30 inches |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Form Factor | PCIe | Modular | Modular | PCIe | Modular |
| Height | 1.2 inches | 1.0 inches | N/A | 0.5 inches | 1.73 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | Ethernet / SFP+ | SFP+ | Ethernet | SFP+ | Ethernet |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Module Type | Ethernet | WAN Module | Ethernet | Ethernet | Ethernet Module |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 15W | 15W | 6W | 12W | 7W |
| Product Name | MX10003-LC2103-E | JNP10K-RE1-LT-R | MX10K-LC2101-E | MX10K-LC2101-R | MX10K-LC2101-EQ |
| Product Type | Network Card | Router Module | Network Module | Network Module / Network Card | Network Module |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Supported Protocols | TCP/IP | TCP/IP, MPLS | TCP/IP, iSCSI, Jumbo Frames | TCP/IP | TCP/IP, iSCSI |
| Weight | 1.5 lbs | 1.2 lbs | N/A | 1.2 lbs | 0.75 lbs |
| Width | 5.5 inches | 5.5 inches | N/A | 3.4 inches | 3.44 inches |
Reviews & Ratings
O
Oliver Kendall
4
Stable throughput under heavy traffic.
N
Nathan Ellery
4
Good fit for modular MX10003 deployments.
J
Julian Stratford
4
No issues during commissioning.
R
Ryan Pendleton
5
Reliable high speed line card.
Questions & Answers
What is the MX10003-LC2103-E Modular Port Concentrator (MPC)?
The MX10003-LC2103-E is a Juniper Networks JNP1003/MX10003 Modular Port Concentrator that provides six QSFP+ ports and one MIC slot in Enhanced (E) mode for high-density, line-rate connectivity.
Which physical interfaces are available on the MX10003-LC2103-E?
The MPC features six QSFP+ ports for 40 GbE connectivity and one Modular Interface Card (MIC) slot that accepts a variety of optical or copper MIC modules.
Which routers support the JNP1003/MX10003 MPC?
The MX10003-LC2103-E is fully compatible with the Juniper MX10003 3-rack-unit universal routing platform running Junos OS.
What throughput and performance does the MX10003-LC2103-E deliver?
In Enhanced mode, the MPC delivers up to 240 Gbps aggregate throughput at line rate across all six QSFP+ ports with microsecond-level latency.
What is Enhanced Mode (E Mode) on the MPC?
Enhanced Mode unlocks full port density and performance features, enabling line-rate forwarding, advanced QoS, and OAM functions on all interfaces simultaneously.
Which MIC modules are compatible with the MPC’s MIC slot?
The single MIC slot supports all MX10003 optical and copper MICs, including SFP+, QSFP+, and QSFP28 modules for 1 GbE to 100 GbE connectivity.
Can I hot-swap the MX10003-LC2103-E in a live router?
Yes. The MPC supports Juniper’s in-service hot-swap capability, allowing safe insertion and removal without disrupting packet forwarding.
How do I install the MX10003-LC2103-E in my MX10003 chassis?
Slide the MPC into an available PIC slot until it latches, secure the ejector lever, then verify operational status via the Junos CLI or GUI.
What are the power consumption and thermal specifications?
The MPC consumes up to 37 W, operates between 0 °C and 40 °C, and meets NEBS Level 3 and ETSI environmental standards for temperature and airflow.
Which Junos OS release is required for the MX10003-LC2103-E?
The MPC requires Junos OS release 20.2R3 or later on the MX10003 platform to enable Enhanced mode and full feature support.
Can I use breakout cables on the QSFP+ ports?
Yes. Each QSFP+ port supports 4×10 GbE breakout configurations for flexible network segmentation and migration paths.
Does the MPC support line-rate forwarding and advanced QoS?
Yes. The MX10003-LC2103-E provides line-rate forwarding, hierarchical QoS, and comprehensive OAM features across all interfaces.
What are typical use cases for the MX10003-LC2103-E?
This MPC is ideal for data center spine or leaf aggregation, metro transport, high-performance peering, and enterprise WAN edge applications.
What is the ordering SKU or part number?
Order the Juniper MX10003-LC2103-E with SKU MX10003-LC2103-E for the 6×QSFP+ MPC in Enhanced mode for MX10003 routers.
What warranty and support options are available?
Juniper provides a one-year limited hardware warranty and offers optional Juniper Care and Juniper Care Plus for extended coverage and expedited RMA.
Where can I find detailed technical documentation?
Download the MX10003 hardware guide and MPC datasheet from the Juniper Networks website under the MX10003 product documentation section.