The Alcatel-Lucent 7950 XRS (Extensible Routing System) is a high-capacity, carrier-grade IP core router designed to deliver the performance, scale, and efficiency required for modern IP/MPLS networks. Built on a unique and highly efficient architecture, the 7950 XRS enables service providers, data center operators, and large enterprises to manage explosive traffic growth while reducing operational complexity and energy consumption.
The 7950 XRS supports terabit-scale routing with industry-leading port density and system throughput, making it ideal for core network environments, peering points, and high-performance data centers. Its advanced software capabilities, including robust QoS, full IPv4 and IPv6 support, and integrated network virtualization, allow operators to deliver high-value services with precision and reliability.
At Carritech, we provide comprehensive support for the Alcatel-Lucent 7950 platform, offering fully tested and refurbished systems, line cards, and replacement parts to extend the life of your network infrastructure. With a focus on quality, sustainability, and cost-efficiency, we help our clients maintain mission-critical systems while avoiding the high cost of complete hardware refreshes.
Whether you are looking to expand your current deployment, replace failed components, or build network resilience with critical spares, Carritech’s specialist team is here to assist with expert knowledge and fast global delivery.
Massive Scalability – Supports multi-terabit capacity with up to 32 Tbps of system throughput in a single chassis.
High Port Density – Offers ultra-high density 10GE, 40GE, and 100GE interfaces for efficient bandwidth aggregation and core routing.
Advanced IP/MPLS Services – Delivers Layer 2 and Layer 3 VPNs, traffic engineering, segment routing, and seamless IP/MPLS integration.
Carrier-Grade Reliability – Redundant control, fabric, and power components ensure high availability and in-service upgrades.
Energy Efficiency – Built with a focus on power-to-performance ratio, delivering high capacity with lower energy consumption per bit.
Flexible System Architecture – Modular design with support for multiple chassis configurations (e.g., XRS-16, XRS-20, XRS-40) to meet varying network needs.
Comprehensive QoS – Offers deep traffic classification, policing, shaping, and scheduling to ensure service-level performance.
IPv4 & IPv6 Support – Dual-stack routing with full transition features for modernizing legacy networks.
Network Virtualization Support – Includes features for network slicing, virtual routers, and cloud-scale deployments.
Robust Management – Centralized and distributed control options, supported by CLI, SNMP, and network management platforms like NSP (Network Services Platform).
The Alcatel-Lucent 7950 XRS is engineered to meet the core routing requirements of the most demanding service provider and data center networks. Below is a summary of its key technical specifications and capabilities:
Models Available:
7950 XRS-16 – Mid-sized core router supporting up to 16 slots
7950 XRS-20 – Large-scale configuration with up to 20 slots
7950 XRS-40 – Flagship model with 40 slots for maximum scalability
Fabric Design:
Distributed switch fabric
In-service fabric upgrades and replacements
Control Plane:
Dual redundant route processors (control shelf)
Based on the SR OS (Service Router Operating System)
Total System Capacity: Up to 32 Tbps (XRS-40)
Interface Options:
10 Gigabit Ethernet (10GE)
40 Gigabit Ethernet (40GE)
100 Gigabit Ethernet (100GE)
CFP, QSFP+, and QSFP28 optics supported
Line Cards: High-density cards available for all Ethernet speeds
IP Protocols: Full support for IPv4, IPv6, dual-stack
Routing Protocols: OSPF, IS-IS, BGP, RIP, Segment Routing
MPLS Capabilities:
Label Distribution Protocol (LDP)
RSVP-TE for traffic engineering
VPLS, VPWS, L3VPN support
Segment routing (SR-MPLS)
Hierarchical QoS: 4-level scheduling with per-flow control
Traffic Management:
Traffic shaping and policing
Extensive classification and queuing mechanisms
Carrier-Grade SLA Enforcement: End-to-end service quality guarantees
Management Interfaces: CLI, SNMPv2/v3, NETCONF, SSH, Telnet
Network Management Tools: Compatible with Nokia Network Services Platform (NSP)
Security Features:
Control plane protection
Access control lists (ACLs)
User authentication via RADIUS, TACACS+
Integrated DDoS mitigation features
Power Options: Redundant DC and/or AC input options
Cooling: Front-to-back or back-to-front airflow, field-replaceable fans
Operating Temperature: 0°C to +45°C
Mounting: Standard 19″ rackmount; floor-standing chassis for large models
| Period | Owner / Marketer | Notes |
|---|---|---|
| Circa 2012 – 2016 | Alcatel‑Lucent | Launched the 7950 XRS family—including XRS‑16c, XRS‑20, XRS‑40 core routers—as a high-capacity IP/MPLS routing platform (up to 32 Tb/s, 160 × 100GE ports). Released through SR OS firmware R13.0 series. |
| 2016 – Present | Nokia | Following Nokia’s acquisition of Alcatel‑Lucent, the 7950 XRS continues under Nokia branding—enhanced with FP4/FP5 silicon, support for 400 GE and higher firmware (R23+), and ongoing documentation & parts support. |
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From expert maintenance and repair to reliable part sourcing and technical consultation, we provide comprehensive support for every stage of your network’s lifecycle. Whether you’re extending the life of legacy systems or integrating with modern infrastructure, our team ensures seamless, efficient, and cost-effective solutions—so you can focus on performance, not problems.