Hardware overview

The SR Linux software supports the following hardware platforms:

  • 7250 IXR-6
  • 7250 IXR-6e
  • 7250 IXR-10
  • 7250 IXR-10e
  • 7220 IXR-D1
  • 7220 IXR-D2
  • 7220 IXR-D3
  • 7220 IXR-D5
  • 7220 IXR-D2L
  • 7220 IXR-D3L
  • 7220 IXR-H2
  • 7220 IXR-H3

The sections that follow describe the specifications of each platform. Each router series has a dedicated installation guide containing complete specifications, recommendations for preparing the installation site, and procedures to install and ground the routers. See the respective chassis installation guides listed in SR Linux documentation for more information.

7250 IXR series

SR Linux is supported on the 7250 IXR-6, 7250 IXR-10, 7250 IXR-6e, and 7250 IXR-10e hardware platforms. The following table summarizes the specifications of each product.

Table 1. 7250 IXR series specifications
Parameter 7250 IXR-6 7250 IXR-10 7250 IXR-6e 7250 IXR-10e
Height 7 RU 13 RU 10 RU 16 RU
Depth 81.28 cm 81.28 cm 92.2 cm 92.2 cm
Number of IMM slots 4 8 4 8
Slot capacity (full duplex) 9.6T 9.6T 14.4T 14.4T
Maximum system capacity per chassis (half duplex) 76.1T or 115.2T HD with local switching 153.6T or 230.4T with local switching 115.2T 230.4T

Architecture

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.

Chassis components

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.

Power and cooling

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.

7220 IXR-D series

SR Linux is supported by the 7220 IXR-D1, 7220 IXR-D2, 7220 IXR-D3, and 7220 IXR-D5 platforms. All platform variants are 1 RU in height. The following table summarizes the features of these routers.

Table 2. 7220 IXR-D series specifications
Parameter 7220 IXR-D1 7220 IXR-D2 7220 IXR-D3 7220 IXR-D5
Depth 40 cm 46 cm 46 cm 59 cm
System Capacity (FD) 88G 2T 3.2T 12.8T
Module connectors 48T 4SFP+ 48SFP28 8QSFP28 32QSFP28 2SFP+ 32QSFPDD 2SFP+

Architecture

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.

Chassis components

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, 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.

Power and cooling

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-D5 has six fan modules.

7220 IXR-DL series

SR Linux is supported by the 7220 IXR-D2L and 7220 IXR-D3L platforms. All platform variants are 1 RU in height. The following table summarizes the features of these routers.

Table 3. 7220 IXR-DL series specifications
Parameter 7220 IXR-D2L 7220 IXR-D3L
Depth 53.6 cm 51.5 cm
System Capacity (FD) 2T 3.2T
Module connectors 48SFP28 8QSFP28 2SFP+ 32QSFP28 2SFP+

Architecture

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.

Chassis components

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.

Power and cooling

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.

7220 IXR-H series

SR Linux is supported by the 7220 IXR-H2 and 7220 IXR-H3 platforms. The following table summarizes the features of these routers.

Table 4. 7220 IXR-H specifications

Parameter

7220 IXR-H2

7220 IXR-H3

Height

4 RU

1 RU

Depth

55 cm

55 cm

System Capacity (FD)

12.8T

12.8T

Module connectors 128 QSFP28 32QSFPDD 2SFP+

Architecture

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.

Chassis components

The 7220 IXR-H chassis vary in system height. 7220 IXR-H specifications compares the differences between 7220 IXR-H2 and 7220 IXR-H3. 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.

Power and cooling

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, and the 7220 IXR-H3 supports 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-H2 has eight fan modules, and the 7220 IXR-H3 has six fan modules.