Nokia 7250 Ixr X1 Installation Guide !exclusive! May 2026

The Nokia 7250 IXR-X1 is a high-density, 1RU fixed-configuration interconnect router designed for data center, WAN, and edge computing environments. This guide provides the essential steps for physical installation, cabling, and initial setup based on official hardware documentation. 1. Hardware Overview & Specifications 7250 IXR-X1

is part of the IXR-X series, offering high-performance throughput in a compact form factor. Form Factor: 1RU (4.5 cm / 1.75 in height). System Capacity: Up to 9.6 Tb/s (Half Duplex). Interface Ports: 4 x 400GE QSFP-DD ports. 32 x 100/40GE QSFP28/QSFP+ ports.

Control Interfaces: Console, management port, USB, and an internal SD/SSD slot for booting.

Redundancy: Dual hot-swappable Power Supply Units (1+1) and three modular replaceable fans. 2. Pre-Installation Requirements

Before beginning the physical installation, ensure the following site requirements are met:

Power: Modular AC (200V to 240V) or DC (-48V to -60V) power feeds.

Cooling: The unit supports both front-to-back and back-to-front airflow options. Ensure the rack provides adequate ventilation for the selected airflow direction. Space: Standard 19-inch rack mounting space is required. 3. Physical Installation Steps

For detailed chassis-specific instructions, refer to the Nokia 7250 IXR-X Chassis Installation Guide . Mounting the Chassis:

Attach the provided mounting brackets to the sides of the IXR-X1 chassis.

Lift and slide the chassis into the rack, securing it with rack screws. Grounding the Unit:

Connect a grounding cable to the designated grounding lug on the rear of the chassis to prevent electrical damage. Installing Power Supplies (PSUs):

Insert the modular AC or DC PSUs into the rear slots until they click into place.

Connect the power cords to the PSUs and secure them using the built-in clips. Connecting Management and Console: nokia 7250 ixr x1 installation guide

Plug a standard RJ-45 console cable into the Console port for initial CLI access.

Connect the Management port to your out-of-band management network. 4. Initial Software Setup & Booting 7250 IXR-X1 typically boots SR Linux from an internal SSD. 7250 IXR Hardware Documentation Hub

The IXR-X1 is typically installed in standard 19-inch equipment racks. Physical Dimensions : 1RU, 4.5 cm (1.75 in). : 44.45 cm (17.5 in). : 54.6 cm (21.5 in). Environmental Requirements

: Front-to-back cooling with three modular replaceable fans (n+1 redundancy). Temperature

: Sustained operating range of 0°C to +40°C (32°F to +104°F). : Supports operation up to 13,123 ft (4000 m). Power Supply Supports dual modular power supplies (1+1 redundancy). : High-voltage AC (200V–240V) or DC (-48V/-60V). Software Installation & Boot Process

Unlike standard 7250 IXR models that boot from internal SD cards, the IXR-X series (including the X1) boots from an internal 80GB SSD Nokia Documentation Center Initial Software Loading Preparation : Download the appropriate image from the Nokia Documentation Center SSD Boot Recovery

: If a fresh installation or recovery is needed, an external recovery SD card containing the SR Linux rescue image is used.

Insert the recovery SD card into the external SD slot of the Control Plane Module (CPM). Connect to the console port and reboot.

Interrupt the boot process at the Nokia banner (up arrow key) to enter the BIOS boot menu

Select the USB/SD device as the boot option; the system will then automatically install the image from the SD card onto the internal SSD. Nokia Documentation Center Configuration & Control Interfaces

For local management and initial setup, the IXR-X1 provides several physical interfaces: Console Port

: Used for direct terminal access during boot and initial IP configuration. Management Port : Dedicated Ethernet port for out-of-band management. Additional Ports The Nokia 7250 IXR-X1 is a high-density, 1RU

: Includes USB, an SD slot with a security cover, and Bluetooth connectivity for wireless management options. Alcatel-Lucent Enterprise Official Documentation Links

For detailed step-by-step chassis mounting and cabling, refer to the following official Nokia resources: 7250 IXR Hardware Documentation Hub

: Central resource for chassis installation guides and data sheets. SR Linux 7250 IXR-X Chassis Installation Guide

: Specifically covers the physical mounting and grounding of the X-series. Software Installation Guide

: Detailed procedures for ZTP (Zero Touch Provisioning) and manual software deployment. Nokia Documentation Center process or the specific cabling requirements for the 400GE ports? 7250 IXR Hardware Documentation Hub

4.2 DC PSU Steps (if applicable)

Ensure DC circuit breaker is OFF.
Slide DC PSU into slot.
Strip 12 mm of insulation from DC wires (black = –48V RTN, blue = –48V, green/yellow = ground).
Insert wires into the terminal block: negative on left, positive on right, ground in center.
Torque terminal screws to 1.0 N·m (9 in-lb).
Turn on DC breaker.

Conclusion

You have successfully installed and initially configured a Nokia 7250 IXR X1 router. This guide covered mechanical mounting, power and grounding, console access, basic network setup, and verification. For advanced features (BGP EVPN, segment routing, telemetry), refer to the Nokia 7250 IXR Configuration Guide specific to your OS version.

Always download the latest firmware from the Nokia Support Portal before deploying to production. Remember to register your device for warranty and support.

Conclusion

The Nokia 7250 IXR X1 is a dense, powerful, and reliable platform for modern high-speed networks. Following this installation guide ensures hardware integrity, safety, and a smooth initial configuration. Always refer to Nokia’s official documentation for country-specific electrical requirements and firmware updates before placing the router into production.

This guide is accurate as of SR Linux release 24.3. Always verify against your specific hardware revision.

Installation Guide for the Nokia 7250 IXR-X1 The Nokia 7250 IXR-X1 is a high-performance, 1RU (Rack Unit) interconnect router designed for high-density 10GE to 400GE aggregation in data center and 5G networks. This guide provides a summary of the physical installation and initial setup procedures. 1. Site Preparation and Safety

Before installing the chassis, ensure the environment meets the following requirements: Space: Reserve 1RU of space in a standard 19-inch rack.

Cooling: Ensure clear airflow for the three modular replaceable fans. The system supports both front-to-back and back-to-front airflow options. Ensure DC circuit breaker is OFF

Temperature: Maintain a sustained operating temperature between 0°C to +40°C (32°F to +104°F).

Safety: Always use qualified personnel for installation to prevent equipment damage and voiding warranties. 2. Physical Installation

Unpack and Inspect: Check the chassis and components for any shipping damage.

Mounting: Secure the rack-mount brackets to the chassis. Install the router into the rack and tighten the screws.

Grounding: Connect the chassis to the rack’s ground according to local electrical codes. 3. Power and Cabling The 7250 IXR-X1 supports redundant power configurations: Power Options: HV AC: 200V AC to 240V AC (50/60 Hz). DC: -48V DC to -60V DC.

Data Cabling: Connect optical fibers to the appropriate ports. The IXR-X1b variant typically features 12 x 400G QSFP-DD and 24 x 100G QSFP28 connectors.

Control Interfaces: Connect to the console, management, or USB ports as needed for initial configuration. 4. Software Boot and Initialization

The system typically runs Nokia SR Linux or SR OS, booting from an internal SSD.

Initial Boot: Power on the chassis. The system will boot the pre-installed image from the internal storage.

Manual Boot (Recovery): If a manual bootstrap is required, you can use a recovery SD card or USB device to boot the system into the BIOS and select the appropriate boot source.

Management: Initial access is gained via the Console port (typically RJ-45) to perform basic system configuration, such as setting management IP addresses.

For detailed step-by-step instructions and specific command-line procedures, refer to the official 7250 IXR Hardware Documentation Hub. 7250 IXR Hardware Documentation Hub

1.1 Safety Precautions

ESD (Electrostatic Discharge) Precautions: Always wear an ESD wrist strap connected to an ESD grounding point.
Weight: The fully loaded chassis weighs approximately 8.5 kg (18.7 lbs). Use two-person lift if required.
Environment: Ensure ambient temperature between 0°C and 40°C (32°F to 104°F) with 5% to 85% non-condensing humidity.

5. Basic Configuration (First Steps)

The Nokia 7250 runs the SR OS (Service Router Operating System). The installation guide usually provides a "Quick Start" configuration snippet.

BoF (Boot Options File): You may need to configure the BoF to point to a TFTP/FTP server to load the main software image.

Configuring the Management IP:

# Example SR OS CLI commands
configure system name "Router-X1"
configure system management-interface interface "mgmt" address <IP-ADDRESS/MASK>
configure system management-interface interface "mgmt" gateway <GATEWAY-IP>
admin save

Configure management interface (MGMT)

set interface mgmt0 admin-state enable set interface mgmt0 ipv4 address 192.168.1.2/24 set interface mgmt0 ipv4 destination 192.168.1.1