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Delivering reliable IT hardware solutions since 2009.
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Part Number: MX10003-LC2103
Description: JNP10003/MX10003 MPC.6XQSFP+.1 MIC SLOT
Category: Juniper Router Modules & Cards, Juniper Routers, Line Cards, Routers
and more
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
Terms & Conditions*
The Juniper MX10003-LC2103 is a high-performance modular port concentrator (MPC) designed specifically for the MX10003 router platform. As a critical component in the Juniper MX10003 ecosystem, the MX10003-LC2103 line card delivers exceptional performance, flexibility, and reliability for modern network deployments across various environments from enterprise data center to service provider infrastructure.
The MX10003-LC2103 features an advanced packet forwarding engine that delivers high throughput and low latency for demanding network applications. This powerful line card significantly enhances the capabilities of the MX10003 router, enabling it to handle complex routing and switching functions with exceptional efficiency. The MX10003-LC2103 supports multiple high-speed interfaces simultaneously, making it ideal for high-density network deployments requiring maximum performance.
Each MX10003-LC2103 modular port concentrator is engineered to provide consistent packet processing with minimal latency, ensuring that even during peak traffic periods, the network maintains optimal performance. With support for advanced traffic management capabilities, the MX10003-LC2103 enables network operators to implement sophisticated quality of service policies that prioritize critical applications.
The Juniper MX10003-LC2103 provides exceptional flexibility through its support for diverse interface modules and modular interface cards. Network administrators can configure the MX10003-LC2103 with various combinations of connectivity options to meet specific deployment requirements. This adaptability makes the MX10003-LC2103 suitable for a wide range of network environments.
When installed in the MX10003 router’s slot, the LC2103 MX10003 MPC enables network operators to implement customized port configurations that align with their specific connectivity needs. The modular design of the JNP10003-LC2103 allows for easy upgrades as network requirements evolve, protecting the initial investment while providing a path for future expansion.
The MX10003-LC2103 is designed to operate reliably across a wide operating temperature range, making it suitable for deployment in various environmental conditions. Its robust hardware construction ensures long-term durability even in challenging deployment scenarios. The MX10003-LC2103 integrates seamlessly with the MX10003’s redundancy features, contributing to overall network resilience.
Working in conjunction with the MX10003’s control boards, the MX10003-LC2103 maintains stable operation even during heavy processing loads. The line card is designed to support hot-swappable installation, allowing for component replacement without disrupting network operations. This well-engineered approach to hardware design reflects Juniper’s commitment to reliability in critical network infrastructure.
The MX10003-LC2103 supports a comprehensive suite of advanced networking features, including segment routing, which enables more efficient traffic engineering and simplified network operations. The line card works seamlessly with Junos OS to deliver powerful automation capabilities that reduce operational complexity while enhancing network agility.
Through its support for sophisticated routing protocols and services, the MX10003-LC2103 enables network operators to build highly scalable and flexible network architectures. The MX10003 MPC integrates smoothly with Juniper’s automation framework, allowing for programmatic control of network resources and simplified management of complex configurations.
The Juniper MX10003-LC2103 delivers impressive technical specifications that position it as a premium modular port concentrator for high-performance network environments. Its capabilities are designed to meet the demands of today’s most challenging network deployments.
| Feature | Specification |
| Part Number | JNP10003-LC2103 |
| Form Factor | Modular Line Card for MX10003 |
| Slot Compatibility | MX10003 Router Chassis |
| Dimensions (W x H x D) | 15.25″ x 1.75″ x 20.25″ |
| Weight | 14.7 lbs (6.7 kg) |
| Power Consumption | 800W (maximum) |
| Operating Temperature | 32° to 104°F (0° to 40°C) |
| Relative Humidity | 5% to 90% (non-condensing) |
The MX10003-LC2103 is designed for installation in the Juniper MX10003 router chassis. When ordering, the exact part number JNP10003-LC2103 should be specified to ensure compatibility. The line card occupies one slot in the MX10003 chassis, allowing for flexible configuration based on network requirements.
The MX10003-LC2103 delivers exceptional performance metrics:
The MX10003-LC2103 modular port concentrator achieves this high throughput while maintaining consistent performance across all interfaces. Its advanced packet forwarding engine architecture ensures that even complex traffic patterns are processed efficiently without compromising overall system performance.
The MX10003-LC2103 supports a variety of interface types through compatible modular interface cards:
Network operators can select the appropriate combination of interfaces to meet their specific connectivity requirements. This flexibility allows the MX10003-LC2103 to be adapted for diverse deployment scenarios, from data center interconnect to carrier edge applications.
The MX10003-LC2103 is fully compatible with Junos OS, providing access to comprehensive routing and switching features:
Through its integration with Junos OS, the MX10003-LC2103 enables sophisticated network services while maintaining operational consistency with other Juniper platforms. This compatibility simplifies network management and reduces operational complexity for organizations with multi-platform Juniper deployments.
While the initial price of the MX10003-LC2103 may appear higher than some alternatives, the total cost of ownership tells a different story. The line card’s high density design reduces the number of chassis slots required, lowering power consumption and rack space costs. Its exceptional throughput (up to 1.6 Tbps) means fewer components are needed to handle the same traffic volume compared to lower-performance options. Organizations typically find that the MX10003-LC2103’s advanced packet forwarding engine capabilities and operational efficiency provide substantial long-term savings that offset the initial investment, especially in growing networks where scalability is critical.
The MX10003-LC2103 modular port concentrator is designed for straightforward deployment in compatible MX10003 routers. The line card is hot-swappable, allowing installation without powering down the chassis. Configuration follows standard Junos OS procedures, making it familiar for existing Juniper users. For network administrators transitioning from other vendors, Juniper provides comprehensive documentation with step-by-step examples and configuration templates. Most organizations find that after initial setup, ongoing management is streamlined through Juniper’s automation capabilities, reducing operational complexity compared to maintaining multiple discrete components with equivalent capacity.
The MX10003-LC2103 operates under the same Junos OS environment used across Juniper’s routing portfolio, minimizing additional training requirements for staff familiar with other Juniper products. For teams new to Juniper, the learning curve is generally shorter than expected due to Junos OS’s consistent command structure and intuitive interface. Juniper offers various training options, from self-paced online courses to comprehensive certification programs. Most organizations find that network engineers with general routing experience can become productive with the MX10003-LC2103 within days, with proficiency developing over a few weeks of regular use.
The MX10003-LC2103 is engineered for exceptional reliability in demanding environments. It undergoes rigorous testing across its specified operating temperature range and features built-in redundancy at the component level. The hardware has an impressive mean time between failures (MTBF) rating, and when deployed in a redundant configuration with multiple line cards, provides robust protection against hardware failures. Field data shows that networks properly designed with redundant MX10003-LC2103 modules consistently achieve 99.999% uptime. The line card’s support for in-service software upgrades and graceful routing engine switchover further enhances system availability by minimizing maintenance downtime.
The MX10003-LC2103’s modular architecture provides exceptional adaptability for evolving networks. Its support for diverse interface modules means connectivity options can be adjusted without replacing the entire line card. The powerful packet forwarding engine provides performance headroom to accommodate traffic growth. As new routing protocols and technologies emerge, Junos OS updates extend the line card’s capabilities, protecting your investment. Organizations particularly appreciate that the MX10003-LC2103 supports advanced automation features, allowing network functions to be programmatically adjusted as requirements change. This combination of hardware flexibility and software extensibility makes the MX10003-LC2103 an ideal foundation for networks that anticipate significant evolution over time.
At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.
For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.
Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.
Our team of professionals are experts in networking hardware configurations and can assist you at any time during your purchasing process. We always recommend great price-performance alternatives based on current market price and availability. In need of assistance or looking for a specific part number? Request a quote today or chat with one of our IT specialists.
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