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Nokia SReXperts 25: Key Takeaways
2025 has been a pivotal year for Nokia, headlined by the acquisition of Infinera, the rollout of highly-anticipated hardware updates and an all-new Documentation AI Assistant. The 2025 SReXperts conference provided key updates on these developments and more.
SRv6 - Key Concepts for Engineers
This learning path will introduce you to the fundamental concepts of SRv6 uSID with L3VPN over an IPv6 transport. Segment Routing over IPv6 (SRv6) is the successor to SR-MPLS. It natively utilizes the IPv6 data plane to deliver Segment Routing capabilities, simplifying network deployments. SRv6 uses the IPv6 Routing Extension Header to carry multiple IPv6 addresses, including multiple SRv6 SIDs. SRv6 uSID extends this concept by allowing a single 128-bit IPv6 destination address to carry up to six individual SIDs, or MPLS labels. By eliminating the need for MPLS label shims and transporting SRv6 SIDs as IPv6 addresses, any IPv6-capable router can forward an SRv6 packet. This enables the deployment of SRv6 services over any IPv6-enabled infrastructure.
Network Service Management and Orchestration
Managing and automating services across networks and infrastructure to scale.
Understanding IPv6 Addressing
The rapid growth of devices has exhausted IPv4 addresses, hindering expansion. Transitioning to IPv6, with its vast address space, eliminates the need for complex techniques like NAT, enhances security and supports emerging technologies. Embracing IPv6 future-proofs networks, ensuring seamless connectivity and efficient address allocation.
Intro to Segment Routing Lab
MPLS has been around for over two decades and is the cornerstone of Service Provider Networks and many enterprise, utility and federal networks. MPLS delivers mission-critical applications and services. Segment Routing has taken the stage to replace MPLS because it accomplishes the same as MPLS but is less complex, extremely robust and can be scaled without limitations. This lab will introduce you to the basics of Segment Routing.
What's new
SRv6 uSID Lab
SRv6 utilizes the IPv6 data plane natively to deliver Segment Routing capabilities which dramatically simplifies network deployments. By eliminating the need for MPLS label shims and transporting SRv6 SIDs as IPv6 addresses, any IPv6 capable router can forward an SRv6 packet. This means that you can run SRv6 services over any IPv6-enabled infrastructure. This lab will introduce you to the basics of SRv6 with L3VPN over a purely IPv6 transport.
SRv6 - Key Concepts for Engineers
This learning path will introduce you to the fundamental concepts of SRv6 uSID with L3VPN over an IPv6 transport. Segment Routing over IPv6 (SRv6) is the successor to SR-MPLS. It natively utilizes the IPv6 data plane to deliver Segment Routing capabilities, simplifying network deployments. SRv6 uses the IPv6 Routing Extension Header to carry multiple IPv6 addresses, including multiple SRv6 SIDs. SRv6 uSID extends this concept by allowing a single 128-bit IPv6 destination address to carry up to six individual SIDs, or MPLS labels. By eliminating the need for MPLS label shims and transporting SRv6 SIDs as IPv6 addresses, any IPv6-capable router can forward an SRv6 packet. This enables the deployment of SRv6 services over any IPv6-enabled infrastructure.
Deploying IPv6 with ISIS
Organizations have relied on IPv4 for decades, but transitioning from IPv4 to IPv6 is necessary to accommodate the growing number of devices and the increasing demand for IP addresses. Most organizations have exhausted their IPv4 address space. Transitioning to IPv6 allows network engineers to future-proof their networks against the inevitable exhaustion of IPv4 addresses.
Segment Routing Technical Training Module 4 - TI-LFA
What is Segment Routing? This video series provides an overview of the technology, the different types of Segment Routing, the advantages over MPLS and how it can be used to optimize bandwidth.
Segment Routing Technical Training Module 6 - SRv6
What is Segment Routing? This video series provides an overview of the technology, the different types of Segment Routing, the advantages over MPLS and how it can be used to optimize bandwidth.
Segment Routing Technical Training Module 2 - Segment Types
What is Segment Routing? This video series provides an overview of the technology, the different types of Segment Routing, the advantages over MPLS and how it can be used to optimize bandwidth.
Segment Routing Inter-Op Lab With Cisco & Juniper
Service providers and other large organizations rely on MPLS quite often on multiple platforms to deliver mission critical applications and services. Segment Routing is the next generation technology that replaces MPLS, and here we look at implementing L3VPN's with Segmenting Routing on both Cisco and Juniper Routers.
Segment Routing Technical Training Module 3 - SR and LDP Coexistence
What is Segment Routing? This video series provides an overview of the technology, the different types of Segment Routing, the advantages over MPLS and how it can be used to optimize bandwidth.
MPLS and Segment Routing Briefing
Multiprotocol Label Switching (MPLS) and Segment Routing (SR) technologies are critical to Carrier Networks today, and will continue to become more and more critical into the future. These technologies provide organizations with the ability to transport various types and classifications of traffic across an IP network and to do it with future-facing automation & orchestration. In addition, Segment Routing makes the network far more robust through fast reroute and enhanced traffic engineering capabilities. As new paradigms such as 5G and the Internet-of-Things (IoT) rapidly change the landscape, the importance of MPLS and SR will continue to expand within many industry verticals.
Cisco EPNM Routing: Provisioning MPLS Tunnels With EPNM
Routing operations for provisioning of MPLS Traffic Engineering tunnels
How SR-MPLS Is Changing the Way We Think About IP Networking
Learn how SR-MPLS, or Segment Routing Multiprotocol Label Switching, changes the way we think about traditional IP networking.
Segment Routing Technical Training Module 5 - Traffic Engineering
What is Segment Routing? This video series provides an overview of the technology, the different types of Segment Routing, the advantages over MPLS and how it can be used to optimize bandwidth.
Segment Routing Technical Training Module 1 - Overview
What is Segment Routing? This video series provides an overview of the technology, the different types of Segment Routing, the advantages over MPLS and how it can be used to optimize bandwidth.
Segment Routing Workshop
The Segment Routing Workshop is an interactive, customized 4-hour experience that will provide the relevant information that's necessary to make informed business and technical decisions to help you decide if Segment Routing is right for your network.
Converged Optical & Packet Networking Briefing
Within the past five years, there have been tremendous advancements in both optical and routing technologies. These advancements present a compelling technical solution and a strong business case to combine, or converge, Optical and Routing architectures into one platform.
SR-MPLS With Flex-Algo Lab
Service providers and other large organizations rely on MPLS on multiple platforms to deliver mission-critical applications and services. Segment Routing is the next-generation technology that replaces MPLS, and here we look at SR-MPLS along with an advanced feature called Flexible Algorithm (Flex-Algo). Segment Routing with Flex-Algo enables the router to assign a user-defined algorithm to the IGP that is implemented dynamically and on-demand.
Converged Optical & Packet Networking Workshop
The Converged Optical & Packet Networking Workshop is an interactive, customized 4-hour experience that will provide the relevant information necessary to make informed business and technical decisions.
Intro to Segment Routing With OSPF Lab
This article provides a concise overview of the solution, including both hardware and software components.
SR-MPLS and the Optical Network
Meet Segment Routing + MPLS (SR-MPLS), the software enabling the optical and routed layers to become one.
Segment Routing or SD-WAN? How About Both?
Want to hear more about how segment routing and SD-WAN can not only coexist but can can complement each other? WWT's Mike DiVincenzo and Ryan Makelky dispel the myths surrounding these two solutions. Check out the full episode by clicking here.