Hardware overview

The 7250 IXR platforms deliver capabilities that include IP routing, Layer 2 Ethernet, QoS, router security, scalable telemetry and model-driven programmability. Flexible traffic management includes big buffering, and per-port queuing, shaping and policing.

Each chassis uses an orthogonal direct cross-connect architecture, with Integrated Media Modules (IMMs) connecting in front and switch fabrics and fans connecting at the rear. The lack of a backplane, midplane, or midplane connector system provides a compact chassis design, optimal cooling, and easy capacity upgrades.

The 7250 IXR chassis include fan trays, Power Supply Units (PSUs), Control Processing Modules (CPMs), Switch Fabric Modules (SFMs), and IMMs. The chassis vary in system capacity, height, and number of IMM slots. 7250 IXR series specifications summarizes the differences between the platform variants.

The system uses a complete Faraday Cage design to ensure EMI containment, a critical requirement for platform evolution that will support next-generation Application-Specific Integrated Circuits (ASICs). The routers are high-density, high-performance modular devices that are designed for data spine deployments. They provide hardware support for 400GE, 100GE, 40GE, 25GE, and 10GE interfaces for intra-fabric and server connectivity.

The 7250 IXR platforms can be AC or DC powered with hot-swappable and load-sharing PSUs. The PSUs are N+M power redundant, and each PSU is cooled by a fan independent of the chassis fans. The IXR-6 has a maximum of 6 PSUs, and the IXR-10 has a maximum of 12 PSUs. The IXR-6e has a maximum of 9 PSUs, and the IXR-10e has a maximum of 12 PSUs.

The chassis have dual fans that support front-to-back airflow. The fan design uses a stainless-steel orthogonal mesh honeycomb placed in front of the line card for air intake. The perforation rate in the honeycomb is approximately 90%, which allows a large surface area that is exposed to cool air, causing a reduction in power consumption.

The 7220 IXR-D series routers are high-performance, high-density, fixed configuration devices designed for data center leaf-spine deployments. The 7220 IXR-D series platforms deliver capabilities including IP routing, Layer 2 switching, QoS, router security, scalable telemetry, and model-driven management.

The 7220 IXR-D chassis vary in system capacity. 7220 IXR-D series specifications compares the differences between 7220 IXR-D1, 7220 IXR-D2, 7220 IXR-D3, 7220 IXR-D4, and 7220 IXR-D5. They provide high-density QSFPDD, QSFP28, QSFP+, SFP28, SFP+, SFP, and RJ-45 ports. The router supports native 400GE, 100GE, 50GE, 40GE, 25GE, 10GE, and 1GE port options.

The 7220 IXR-D series chassis can be powered by either dual removable AC PSUs or DC PSUs. The chassis support two PSUs with 1+1 redundancy.

The chassis are equipped with N+1 hot-swappable fans with front-to-back or back-to-front airflow for cooling. The 7220 IXR-D1 has three fan modules, IXR-D2 has four fan modules, IXR-D3 has five fan modules, and the IXR-D4 and IXR-D5 each have six fan modules.

The 7220 IXR-DL series routers are high-performance, high-density, fixed configuration devices designed for data center leaf-spine deployments. The 7220 IXR-DL series platforms deliver capabilities including IP routing, Layer 2 switching, QoS, router security, scalable telemetry, and model-driven management.

The 7220 IXR-DL series chassis vary in system capacity. 7220 IXR-DL series specifications compares the differences between the 7220 IXR-D2L and 7220 IXR-D3L. They provide high-density QSFP28, SFP28, SFP+, and RJ-45 ports. The router supports native 100GE, 40GE, 25GE, 10GE, and 1GE port options.

The 7220 IXR-DL series chassis can be powered by either dual removable AC PSUs or DC PSUs. The chassis support two PSUs with 1+1 redundancy.

The 7220 IXR-DL series chassis are equipped with N+1 hot-swappable fans with front-to-back or back-to-front airflow for cooling. The chassis each have six fan modules.

The 7220 IXR-H series routers are high-performance, high-density, fixed configuration devices designed for data center leaf-spine deployments. The 7220 IXR-H series platforms deliver capabilities including IP routing, Layer 2 switching, QoS, router security, scalable telemetry, and model-driven management.

The 7220 IXR-H chassis vary in system height. 7220 IXR-H specifications compares the differences between 7220 IXR-H2, 7220 IXR-H3, and 7220 IXR-H4. They provide high-density QSFPDD, QSFP28, SFP+, and RJ-45 ports. The router supports native 400GE, 200GE, 100GE, 50GE, 40GE, 25GE, and 10GE port options.

The 7220 IXR-H series chassis can be powered by either removable AC PSUs or DC PSUs. The 7220 IXR-H2 supports four PSUs with 2+2 redundancy. The 7220 IXR-H3 and 7220 IXR-H4 each support two PSUs with 1+1 redundancy.

The chassis are equipped with N+1 hot-swappable fans. The 7220 IXR-H2 has eight fan modules, the 7220 IXR-H3 has six fan modules, and the 7220 IXR-H4 has four fan modules. The 7220 IXR-H2 and 7220 IXR-H3 support front-to-back or back-to-front airflow for cooling. The 7220 IXR-H4 supports front-to-back airflow only.