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Shortest Path Bridging (SPB)

MPLS-like VPN services that are significantly simpler to deploy and maintain with a lower total cost of ownership

1
protocol (IS-IS) vs multiple for MPLS
Edge
only provisioning, no core changes
802.1aq
IEEE standardized
Shortest Path Bridging (SPB)

Shortest Path Bridging (SPB) delivers traffic on the shortest path available and enables network virtualization in carrier grade networks and data centres.

802.1aq SPB is an IEEE networking standard with a primary focus on addressing STP challenges. However, SPB is more than just an STP evolution and unlike MPLS, which requires a “stack” of protocols (for example: LDP, OSPF, MP-BGP, among others), SPB relies on a single protocol to provide this functionality: IS-IS (Intermediate System to Intermediate System).

Alcatel-Lucent Enterprise Intelligent Fabric (iFab) provides further simplification by automating network node provisioning, client device attachment, and dynamic service instantiation. With this simplicity and automation, an ALE-powered SPB solution offers high-end services for a lower TCO.

Shortest Path Bridging (SPB)

Key capabilities

01

Scalable Multi-Path Fabric

Fast-converging multi-path fabric with multi-tenancy support, IEEE 802.1aq and RFC 6329 standardization ensuring multi-vendor compatibility and future-proof investment.

02

Dynamic Service Instantiation

Edge-only provisioning with automatic configuration reduces human error and accelerates service deployment — no core changes needed when adding new services.

03

Micro-Segmentation

Non-IP core capabilities and loop-free topology without blocking links — providing native network segmentation that simplifies security architecture.

04

Cloud-Ready Data Center

Cloud-ready data center transformation with efficient load sharing across all physical connections, sub-second convergence, and reduced time for VM management tasks.

Resources & Downloads

6 resources available

Secure and efficient Industrial IoT deployment
Solution SheetDEESFRITKOPL
Last Updated
Sep 21, 2026
Industry
Manufacturing
Solution
Harsh Environments, Industrial Networks, Mission Critical Networks, Shortest Path Bridging
Cloud, communications and networking solutions portfolio
Last Updated
Aug 24, 2026
Solution
Autonomous Network, Cloud Communications, Connected Solutions and Devices, Data Center, Digital Age Communications, Digital Age Networking, Distributed Wi-Fi Control Architecture, Industrial Networks, Intelligent Fabric, IoT, Mission Critical Networks, Networking As a Service, OmniFabric, Optical Network Solution, Purple on Demand, Rainbow, Security, Shortest Path Bridging, Unified Access, Unified Communications, Video Surveillance, WiFi Solutions
Ruggedized Ethernet Switches
BrochureESITZH
Last Updated
Jul 28, 2026
Industry
Energy and Utilities, Government › USA Federal, Manufacturing
Solution
Autonomous Network, Industrial Networks, Mission Critical Networks, Shortest Path Bridging
Short Path Bridging Architecture Design Guide
Tech Brief
Last Updated
Jun 25, 2026
Industry
Government › USA Federal
Solution
Shortest Path Bridging
Shortest Path Bridging: Versatile, simple and reliable
Solution GuideDEESFR
Last Updated
Oct 6, 2024
Solution
Autonomous Network, Mission Critical Networks, Shortest Path Bridging
dan-for-its-whitepaper-en.pdf
Whitepaper
Last Updated
Oct 4, 2020
Industry
Transportation › ITS
Solution
Digital Age Networking, Shortest Path Bridging

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