Discover the latest news on Segment Routing


Highlights of the SRv6 Conference in Paris, April 2024

The MPLS SD & AI Net World Congress in Paris, April 2024, gave a special highlight on network performance with a special focus on Integrated Performance Measurement. IPv6 only networks will also be given a large echo, through a debate and a rich set of service providers experience reports.

April 09, 2024 – Conferences – SRv6

Colt: Routing Correlated Analytics

At the MPLS SD & AI Net World Congress in Paris, April 2024, Bart Janssens, Colt, presented "Routing Correlated Analytics." Integrating the performance measurement data and routing information.

April 09, 2024 – Conferences – SRv6

Verizon: Design Experience of an SRv6 uSID Data Center

At the MPLS SD & AI Net World Congress in Paris, April 2024, Gyan Mishra, Verizon, presented "Design Experience of an SRv6 uSID Data Center." Exploring the challenges and innovative solutions encountered but also highlighting the transformative potential of this technology.

April 09, 2024 – Conferences – SRv6

Alibaba: SONiC Readiness for SRv6 uSID deployment

At the MPLS SD & AI Net World Congress in Paris, April 2024, Eddie Ruan, Alibaba, presented "SONiC Readiness for SRv6 uSID deployment." Building and deploying a whitebox router using SONiC in their new backbone network.

April 09, 2024 – Conferences – SRv6


At APRICOT 2024 in Bangkok, February 2024, Clarence Filsfils of Cisco Systems presented SRv6 uSID

February 29, 2024 – Conferences – SRv6

SRv6 uSID and IPM Roadshow in Bangkok, Thailand

After Dubai, Tokyo, NYC, and Rome, the SRv6 uSID roadshow got back to Asia to celebrate the many deployments in the region and provide an update on SRv6 uSID and IPM solutions. The SRv6 uSID solution provides a unified solution across various network segments, outperforming legacy silo solutions. It allows to build stateless end-to-end programs encompassing overlay, underlay and service chaining requirements. The IPM solution provides the scale required to monitor the network experience of all clients (3 to 4 orders of magnitude higher scale than legacy solutions). It drastically reduces CAPEX and OPEX. It provides richer metrics (latency histograms). It correlates measurement with routing analytics. It provides a formidable opportunity for AI.

February 28, 2024 – Conferences – SRv6

uSID is the best SRv6 Compression

In networking, the efficiency, flexibility, and scalability of data routing are paramount. Segment Routing over IPv6 (SRv6) stands at the forefront of this evolution, offering innovative solutions for simplifying operations and enhancing network performance. Among these solutions, uSID and GSID represent two compression approaches with distinct characteristics and capabilities. Today, we delve into why IPv6 uSID emerges as the superior choice over GSID, focusing on its advantages in terms of compression efficiency, encapsulation simplicity, flexibility, interoperability, and open-source ecosystem support.

February 26, 2024 – Blogs – SRv6

Revolutionizing Data Center Networks: Alibaba’s SONiC Journey (

This case study highlights Alibaba Cloud’s transformation of its data center infrastructure using SONiC, an open and mature network operating system. Alibaba has reached the 100.000 whiteboxes milestone. Explore how Alibaba achieved substantial cost savings, enhanced network quality, and accelerated innovation across both AI and standard cloud compute/storage architectures, with a commitment to ongoing collaboration within the SONiC community for continuous advancements in network technologies.

January 29, 2024 – News – SRv6

Implementation of SRv6 uSID in Telefonica VIVO’s Infrastructure (

Technological evolution does not stop, and telecommunications networks are at the forefront of this transformation. VIVO, one of the giants in the industry, is adopting innovative strategies to optimize its operations and improve the user experience. In this blog, we will explore the implementation of SRv6 uSID, a revolutionary approach, in Telefonica VIVO’s infrastructure. This relentless evolution drives the transformation of telecommunications networks, adopting innovative strategies to enhance services and operations with a focus on user experience.

January 24, 2024 – News – SRv6


Driving Innovation: Alibaba and Cisco Co-dev SRv6 SONiC Router (

In the world of networking, collaboration between industry leaders is crucial to drive innovation and develop cutting-edge solutions to resolve critical biz problems. This blog post highlights the industry collaboration between Alibaba Cloud and Cisco in developing and deploying an SRv6 SONiC whitebox router to support Alibaba Cloud’s ‘Predictable Network’ vision, which supports all Alibaba Cloud services. We explore the value proposition of SRv6 as a unified protocol across different domains, the full-stack solution developed by the joint-forces of the community, and the results in deploying the solution in the production network of Alibaba.

October 27, 2023 – News – SRv6

SRv6 uSID Roadshow in Rome, Italy

SRv6 continue to gain momentum in the networking industry as more operators are adopting the technology. After Japan, the Middle-East and NYC, we gathered in Rome with operators to foster SRv6 uSID and Integrated Performance Measurement deployments in Europe. With more than 70 attendees representing 30 different EMEA customers, 6 testimonial and a total of 100+ participants we gathered in a magnificent auditorium in the center of Rome for two days of technology updates, TOIs and sharing of customers experiences. After the two days and listening to the testimonials talks, the benefit of SRv6 uSID as unified solution to deliver any kind of service end-to-end across the various network segments was evident. The benefits are always translated into lower cost and higher efficiency and reliability.

October 04, 2023 – Conferences – SRv6

Kickstart your journey to IPv6 with Segment Routing over IPv6 (SRv6) (

IPv6, as stated in Office of Management and Budget (OMB) mandate, is the new IP standard for the US Federal Government. IPv6 provides the additional addressing and foundation towards a Zero Trust enabled infrastructure.
Combining Segment Routing with IPv6, known as SRv6, lays the foundation for end-to-end services and zero trust security across an entire organization/enterprise.
Learn more about the benefits of SRv6 and how it aligns with your IPv6 strategy in this blog.

September 27, 2023 – News – SRv6

TPG collaborates with Cisco in Australian-first SRv6 tech (

TPG Telecom has collaborated with Cisco to deploy a new networking technology known as segment routing over IPv6 (SRv6) to help it more efficiently manage and direct traffic over its 5G and fixed-line networks.

SRv6 simplifies network management by giving traffic instructions in advance, reducing the need to send data through multiple routers. According to the telco, this is an Australian first.

August 09, 2023 – News – SRv6

Building an SRv6 uSID Data Center Fabric with SONiC

Discover how the decoupled architecture of SONiC, combined with SRv6 uSID, offers operational simplicity, unified forwarding, and cost-effectiveness for network deployments. This blog provides insights into the proof-of-concept testing and the potential for highly automated, plug-and-play fabrics in data centers. Explore the configurations, benefits, and real-world examples of SRv6 uSID in SONiC, showcasing its capabilities in traffic engineering and service chaining.

June 02, 2023 – Blogs – SRv6

Highlights of the SRv6 Conference in Paris, April 2023

The MPLS SD & AI Net World Congress in Paris, April 2023, paid particular attention to SRv6: Technical Progress, Interop, and next steps. Moreover, an impressive set of service providers describe current deployments and introduce some exciting innovations.

April 19, 2023 – Conferences – SRv6

Colt: Building an Hyper-scale PCE

At the MPLS SD & AI Net World Congress in Paris, April 2023, Bart Janssens, Colt, presented "Building an Hyper-scale PCE". New requirements, HS-PCE technology, use case experience.

April 19, 2023 – Conferences – SRv6

Rakuten: Using SRv6 Traffic Accounting

At the MPLS SD & AI Net World Congress in Paris, April 2023, Amit Dhamija, Rakuten, presented "Using SRv6 Traffic Accounting"

April 19, 2023 – Conferences – SRv6

Verizon: SRv6 DC Use Case Study

At the MPLS SD & AI Net World Congress in Paris, April 2023, Gyan Mishra, Verizon, presented "SRv6 DC Use Case Study"

April 19, 2023 – Conferences – SRv6

Czech Education and Scientific is First NREN to deploy SRv6 uSID

It’s an exciting milestone for Cisco and our customer Czech Education and Scientific NETwork (CESNET) who is the first national research and education network (NREN) to deploy Segment Routing over IPv6 (SRv6) micro-segment (uSID) to simplify its network architecture. Being the first NREN to deploy SRv6 uSID demonstrates CESNET’s leadership as an innovative NREN operator in the Czech Republic.

CESNET is a developer and operator of national e-infrastructure for science, research, development, and education in Czech Republic. CESNET is an early adopter of SRv6 technology and simplifies its network with SRv6 uSID for improved SLA services to CESNET members and customers

We are excited that CESNET selected Cisco to be the first NREN deployed using SRv6 uSID based on our industry leadership with SRv6 and applaud the customer on its tremendous industry-first milestone!

April 18, 2023 – News – SRv6

Segment routing for low-latency enterprise Ethernet (

To satisfy the need for low-latency, diverse Ethernet services on a global scale, Arelion has implemented segment routing based on the lowest latency paths across their multi-vendor network.
Arelion created a low-latency routing plane using Flex-Algo with link-delay metrics. Combined with Topology Independent Loop-Free Alternate (TI-LFA) they can offer their customers resilient low-latency connectivity.

March 29, 2023 – News – SRMPLS

Swisscom: “Introducing SRv6 to an existing network”

Martin Gysi of Swisscom presents the introduction of SRv6 in their existing network. Sharing Swisscom's experience of introducing SRv6 into their existing network, emphasizing the simplicity and scalability of the SRv6 design. Discussing the migration process, outlining the steps taken to introduce SRv6 in different service domains.

February 10, 2023 – Conferences – SRv6

Rakuten - SRv6 uSID with network slicing use cases

Amit Dhamija of Rakuten presents "Rakuten - SRv6 uSID with network slicing use cases". Exploring the benefits of deploying SRv6 uSID, the application of slicing and key learnings.

January 26, 2023 – Conferences – SRv6

SRv6 Deployment at SoftBank

Takumi Torii of SoftBank presents "SRv6 Deployment at SoftBank". Exploring the reasons why SoftBank has deployed SRv6, the benefits that they have gained from the deployment, and the details of their deployment.

January 25, 2023 – Conferences – SRv6


SRv6 uSID is mainline in FRR (Free Range Routing) Stack. (

The support for SRv6 uSID has been merged in FRR.  FRR has now full support of SRv6 uSID based L3VPN BGP services. It supports both IPv4 and IPv6 address families either using a separate SRv6 Service SID for each address family (End.DT4 and End.DT6) or using a single SRv6 Service SID (End.DT46) for both.

The SRv6 uSID implementation in FRR has been developed by Carmine Scarpitta from the university of Rome tor Vergata.

November 14, 2022 – News – SRv6

Network Evolution for Voice and Data Service With Cisco Segment Routing (

iBASIS Customers experience the benefits of Segment routing across the iBASIS next generation IPX core network with the realization of accelerated increases in data capacity as their business demands, combined with routing redundancy that secures successful delivery of their traffic during peak periods. As the market evolves, this advanced technology with centralized path determination that enables a simplified iBASIS network architecture with redundant and scalable routing capabilities positions iBASIS to successfully deliver new 5G and IoT services for our customers.

Segment routing traffic engineering powered by Cisco provides the scale, agility, and cost effectiveness that iBASIS requires to exceed customer expectations and remain a leader in our industry.

October 28, 2022 – News – SRv6, SRMPLS

Path Tracing at RIPE85

Pablo Camarillo from Cisco presents Path Tracing and Analytics at RIPE85.

October 26, 2022 – Conferences – SRv6, PT

SRv6 Network Programming in Linux Kernel

Ahmed Abdelsalam from Cisco together with Daniel Bernier (Bell Canada), Reshma Sudarshan (Intel), Stefano Salsano (University of Rome Tor Vergata), Andrea Mayer (University of Rome Tor Vergata), Carmine Scarpitta (University of Rome Tor Vergata) presented SRv6 Network Programming the Linux Netdev 0x16 conference.

October 24, 2022 – Conferences – SRv6, PT

Introducing the SRv6 Service Engine (

Intel, Lanner and NoviFlow presented as part of Intel’s Network Builder series a webinar introducing the SRv6 Service Engine.

SRv6 Service Engine simplifies the deployment of 5G network infrastructure and makes it easier to scale and move services to the network edge by delivering Segment Routing over IPv6. The solution reduces carrier network services cost by up to 90%, hardware footprint by 75%, and power consumption by as much as 66%, using an open, programmable architecture built on Intel technology including the P4-based Intel® Tofino™.

- John Demay, Business Development Manager, Intel
- Sven Freudenfeld, CTO Lanner Electronics
- Jesper Ericsson, VP Product Management, NoviFlow

July 12, 2022 – News – SRv6

NANOG85 Path Tracing

At NANOG85, June 2022, Mike Valentine (Goldman Sachs) presented "Path Tracing". Path Tracing is a new solution that reveals all the unknows about ECMP.

June 08, 2022 – Conferences – SRMPLS, SRv6, PT

Path Tracing Introduction

Path Tracing allows operator to deterministically detect ECMP paths. It is implemented in HW at linerate in the normal forwarding pipeline and provides an Ultra-MTU-Efficiency.

May 09, 2022 – PT

DKNOG12 SRv6 Technology and Deployment Update

At DKNOG12 in Copenhagen, May 2022, Pablo Camarillo (Cisco) presented "SRv6 Technology and Deployment Update". Reviewing the IETF status, the latest deployments and introducing some exciting innovations.

May 06, 2022 – Conferences – SRv6, PT

Highlights of the SRv6 Conference in Paris, April 2022

The MPLS WC 2022 Conference in Paris paid particular attention to SRv6: Technical Progress, Interop, and next steps. Moreover, an impressive set of service providers describe current deployments and introduce some exciting innovations.

April 06, 2022 – Conferences – SRv6

MPLS WC 2022 - Softbank: SRv6 Mobile User Plane (MUP)

At the MPLS WC in Paris, April 2022, Satoru Matsushima, SoftBank, presented "Softbank SRv6 MUP: Evolution of Mobile Network Enabled by SRv6". Introducing the Segment Routing IPv6 Mobile User Plane (SRv6 MUP) architecture.

April 06, 2022 – Conferences – SRv6

MPLS WC 2022 - Alibaba: Full Stack SRv6 Deployment

At the MPLS WC in Paris, April 2022, Yuanchao Su, Alibaba, presented "Alibaba: Full stack SRv6 towards a 'Predictable Network'". Unified SRv6 dataplane from socket to peering link.

April 06, 2022 – Conferences – SRv6

SRv6 ultra-scale - Imposition of 26 SRv6 uSIDs at Linerate

Rakuten, Bell Canada and Cisco Systems are happy to report the successful validation of line rate insertion of 26 SRv6 uSIDs on the NCS 5700 Series platforms running Cisco IOS XR. Watch the video or read the demo report here.

March 29, 2022 – Demos, Blogs – SRv6


Rakuten Mobile deploys SRv6 with Cisco for 5G and IoT Services (

Cisco and Rakuten Mobile, Inc. announced a major milestone for Rakuten Mobile’s network infrastructure in support of efforts to build a better, more inclusive internet for the future.
- Rakuten Mobile using Segment Routing over IPv6 and Cisco Routed Optical Networking to simplify its network architecture and lower costs.
- The synergy of SRv6 and Cisco Routed Optical Networking will provide Rakuten Mobile with unmatched operational flexibility, network simplicity, speed-to-market and a path to profitability.
- Cisco Customer Experience (CX) will manage the architecture design for the network enhancements to help Rakuten Mobile speed time to market with new services and applications.

June 25, 2021 – News – SRv6

SFR uses Segment Routing to strengthen its network for upcoming 5G and IoT services in France (

Cisco and SFR announced major updates to SFR’s network infrastructure to help businesses in France speed their digitization plans and best prepare for a better, stronger internet for the future.
SFR uses Cisco’s newest ASR 9000 routers, along with segment routing to strengthen its backbone to support upcoming 5G and IoT services.
Businesses looking to accelerate digitization plans and cloud ambitions need network resiliency.
SFR continues to invest in its high-speed broadband network spanning fiber, 4G and 5G to support increased demands for always on connections.

April 15, 2021 – News – SRMPLS


The state of SRv6 - Webinar

In this webinar, representatives from LightReading, Cisco and Bell Canada explore the state of SRv6 (SR with IPv6 data plane) and explain how it enhances all SR MPLS capabilities – simplification, resiliency, traffic engineering.

October 23, 2020 – News – SRv6

Take Control of the Packet Path with Segment Routing Traffic Engineering (

Segment Routing Traffic Engineering or SR-TE in conjunction with Automated Steering dramatically simplifies the Traffic Engineering configuration model and eliminates the RSVP soft state requirement, in favor of a Source Packet Routing model also known as SPRING.
In this blog, Mike DiVincenzo, Technical Solutions Architect MPLS/Segment Routing at WWT, decribes how Segment Routing Traffic Engineering drives scalability and network intelligence while improving capacity utilization and reducing costs.

October 22, 2020 – News – SRMPLS

The state of SRv6 - Webinar

In this webinar, representatives from LightReading, Cisco and Bell Canada explore the state of SRv6 (SR with IPv6 data plane) and explain how it enhances all SR MPLS capabilities – simplification, resiliency, traffic engineering.

October 13, 2020 – Conferences – SRv6, SRMPLS

Pick Your Path: Maximize Agility with Segment Routing with Flexible Algorithm (

Segment Routing with Flexble Algorithm (Flex-Algo) enables the router to assign a user-defined algorithm to the IGP that can be implemented dynamically and on demand.
In this blog, Mike DiVincenzo, Technical Solutions Architect MPLS/Segment Routing at WWT, decribes a selection of the possible use-cases of Flexible Algorithms in combination with dynamic delay measurement.

October 13, 2020 – News – SRMPLS

Internet2, Cisco Team Up To Deliver Advanced Networking Technology for Research and Education Network (

Internet2 announced a strategic alliance with Cisco to deliver next-generation capabilities and software solutions across the U.S. research and education (R&E) infrastructure that enables scientific collaboration at a global scale.
Internet2 will deploy Cisco’s latest 8200 series routing platform powered by Cisco Silicon One ASICs, running IOS® XR7 and Network Services Orchestration (NSO) software as part of the packet infrastructure upgrade to its national backbone.
A move to segment routing with multiprotocol label switching (SR-MPLS) and Ethernet virtual private network (EVPN) will allow researcher applications to eventually claim up to an entire 400G link for a particular application while other network uses are dynamically moved to other paths.

October 07, 2020 – News – SRMPLS

Dennis Cai of Alibaba talks about Segment Routing SRv6 - Podcast (

In this podcast, Dennis Cai, Chief Architect of Network Infrastructure at Alibaba talks about Segment Routing SRv6.
- Alibaba's key factors driving SRv6 adoption.
- The use-cases Alibaba plans to address with SRv6.
- SRv6 micro-instructions.
- Alibaba recommends particulars to ensure successful SRv6 implementation.

July 27, 2020 – News – SRv6

Segment Routing Deep Dive with Bertrand Duvivier - Podcast (

Segment Routing is the term widely used in the industry to refer to Source Packet Routing In Networking (SPRING), as defined by the Internet Engineering Task Force (IETF). Cisco has pioneered Segment Routing since 2012 and has led the standardization efforts with the support of a group of lead operators, resulting in few RFCs and over 50 active internet-drafts.
In this podcast today, we’re going to deep dive into some technical aspects with Bertrand Duvivier, Principal Engineer from Cisco.

July 12, 2020 – News – SRv6, SRMPLS

Colt talks about Segment Routing - Podcast (

COLT has been an early adopter of Segment Routing MPLS. Joining us for this podcast are Aaron Partouche, 5G & Edge – New Business Development Director & Bart Janssens – Senior Specialist Packet Network Engineering.
In this podcast they provide a few insights on COLT's network infrastructure, describe the key factors for SRMPLS adoption and discuss how Segment Routing help to speed up adoption in Private 4G/5G networks.

July 08, 2020 – News – SRMPLS

US Federal Government plans for IPv6-only readiness (

On 2 March 2020, the United States Federal Government released a statement about their plan to transition the majority of U.S. Government networks and services to IPv6-only networks inside the next five years. The new draft requires that "at least 80% of IP-enabled assets on federal networks are IPv6-only by the end of fiscal 2025".
In this blog, John Curran, President and CEO at ARIN, indicates that "Now is the time to begin your IPv6 planning and deployment, if you haven’t already."

July 01, 2020 – News – SRv6

100% by 2025: China getting serious about IPv6 (

With close to three quarters of a billion Internet users and billions of Internet of Things devices expected to connect to the Internet in the next five years, it’s little wonder why China is accelerating IPv6 deployment.
The Chinese government issued an ‘Action Plan for the Large-scale Deployment of IPv6’ in November 2017, which seeks to build the world’s largest IPv6 business network in the coming eight years. By the end of 2025, all networks and websites in China, with more than a billion users, will be running IPv6.
In this blog, Yuedong Zhang, Assistant Director of the System Operations, IP Business, Technical Administration at CNNIC, discusses the current state of the IPv6 deployment and gives some insight in what they expect to see in the next years.

June 20, 2020 – News – SRv6

ROSE - Research on Open SRv6 Ecosystem (

The ROSE project tackles multiple aspects of the SRv6 technology: Data Plane, Control Plane, SRv6 host networking stack, integration with applications, integration with Cloud/Data Center Infrastructures. ROSE builds up and maintain a Linux based Open Ecosystem for SRv6, composed of several sub-projects, like SRPerf (performance evaluation of SRv6 implementations), SRv6 SDN (gRPC based API for controlling SRv6 Linux routers), SRv6 uSID implementation in Linux and P4 and several others. The ROSE project home page provides a full list of projects, code repositories and scientific papers that have been published.

June 10, 2020 – News – SRv6

Segment Routing and 5G - Podcast (

5G brings in significant changes to the mobile architecture. It relies heavily on virtualization and containerization, splits the mobile control and user plane and introduces network slicing. In the radio space new spectrum is available and the Radio Access Network infrastructure has been de-aggregated into three discrete components that can be integrated into a single unit or split across different locations.
This podcast is going to concentrate on the transport network and how segment routing can address the new requirements and changes brought in by the 5G mobile architecture.
Ray interviews Distinguished Consulting Engineer at Cisco Simon Spraggs

May 28, 2020 – News – SRv6, SRMPLS

SRv6 micro-instructions (

Network programming is seminal to the Segment Routing over IPv6 data plane (SRv6) solution. It allows for expressing any end-to-end service in a stateless manner as a set of 16-byte instructions (Segment ID, or SID) encoded in the packet header. These instructions may express TE, FRR, VPN behaviours, as well as application behaviours.
In this post, we introduce a straightforward extension to the SRv6 network program: each 16-byte instruction may contain up to six micro-instructions. The SRv6 Segment Routing Extension Header (SRH) data plane (RFC 8754) and the SRv6 control plane are leveraged without any change.

May 15, 2020 – News – SRv6

SRv6: Deployed use-cases (

As of 2019, Segment Routing over IPv6 data plane (SRv6) has been deployed in eight large-scale networks; supported by more than 25 hardware implementations at line rate; implemented in 11 open-source platforms/applications; and, importantly, is undergoing IETF standardization (RFC 8402, RFC 8754).
In this post, we will go through the numerous use cases that have been deployed as of February 2019.

May 08, 2020 – News – SRv6

What is SRv6 network programming? (

Since the start of the Segment Routing over IPv6 dataplane (SRv6) project in 2017, the ecosystem has grown unabated.
SRv6 has been deployed in eight public, large-scale commercial networks, including Softbank, Iliad, China Telecom, LINE Corporation, China Unicom, CERNET2, China Bank and Uganda MTN.

May 01, 2020 – News – SRv6

Cisco to Optimize NTT DOCOMO’s 5G Mobile Backhaul for Simpler, More Flexible and Scalable Network Operation (

NTT DOCOMO selected Cisco NCS routers and Segment Routing technology for network slicing to help optimize its 5G mobile backhaul in preparation for the commercial service.
Mobile backhaul is the transport network that connects the 5G radio (in the cell tower) to the core network that feeds into the data centers. DOCOMO needed a blueprint for more cost effective transport to meet its future 5G base station facility plan capable of achieving 400 Gigabit Ethernet (GE) speeds.

February 25, 2020 – News – SRv6, SRMPLS

SRv6 Updates February 2020

Clarence Filsfils presents the newest SRv6 developments in the series "SRv6 Technology and Deployment use-cases"

February 12, 2020 – Conferences – SRv6

Cisco Architects Innovation Forum 2020 - Japan

SRv6 was one of the topics of the "Cisco Architects Innovation Forum 2020" in Japan, a forum that discusses latest technologies and future architectural changes.

January 26, 2020 – Conferences – SRv6


SRv6 is coming (

Segment Routing MPLS customer adoption is truly outstanding. As of today, we count more than 30 live deployments and about 80 deployments are planned. Kevin Wollenweber, Vice President Of Product Management at Cisco Systems, explains why the pace of adoption for SRv6 will be even faster.

December 10, 2019 – News – SRv6, SRMPLS

SRv6 Acceleration Using Intel FPGA Programmable Acceleration Card N3000 (

The Intel FPGA Programmable Accelerator Card (PAC) N3000, an FPGA-based solution, can be programmed to handle almost any type of functionality – including networking functions – thus improving network and server performance. HCL Technologies and Intel have co-authored a White Paper titled “Segment Routing Over IPv6 Acceleration Using Intel FPGA Programmable Acceleration Card N3000” that describes a solution to hardware-based SRv6 using FPGA technology to improve network performance.

November 06, 2019 – News – SRv6

Report: How Segment Routing is Changing the Limitations in US Federal Network Architectures (

Agencies that continue to operate legacy systems can achieve greater IT performance and versatility, lower their operating costs and enhance their security controls simply by taking advantage of newer networking capabilities.
This promise comes through the segment routing architecture, which is gaining rapid adoption among large-scale network operators and architects, according to a new report. This report highlights the key benefits of segment routing and explains that it is designed to work with legacy systems too.

October 29, 2019 – News – SRv6, SRMPLS

South Slope Boosts Bandwidth Speeds with Cisco To Accommodate Over Three Terabytes (

South Slope, a rural independent telecommunications cooperative, has deployed the Cisco NCS5500 series platform to meet growing capacity demands, using its existing network to deliver voice, data, and video services along with a variety of business ethernet and cellular backhaul services to its customers throughout eastern Iowa. To facilitate the transition, increase the power of the underlying transport network, and reduce operational complexity, Cisco and South Slope created a converged solution based on the Cisco NCS5500 router series. South Slope has also deployed Cisco Segment Routing with Multi-Protocol Label Switching (MPLS) and Ethernet VPN (EVPN).

September 26, 2019 – News – SRMPLS

SRv6 Flexible Algorithm

Jakub Horn demonstrates SRv6 Flexible Algorithm. Flexible Algorithm enables an operator to create network slices mapping to specific transport SLA requirements such as low-delay.

September 03, 2019 – Demos – SRv6

PacketFabric Secures $75M Joint Venture Funding With Digital Alpha Advisors Supporting Connectivity Advances for Next-Generation Networking Platforms (

PacketFabric has secured a joint venture funding with Digital Alpha Advisors to advance the development of innovate network connection technologies that meet the needs of enterprises deploying next generation networks. As part of this investment, the network will evolve towards a more flexible and scalable Segment Routing (SR-MPLS) architecture.

August 27, 2019 – News – SRMPLS

SRv6- A new approach for the evolution of IP Networks

Segment Routing is now a well-accepted evolution path for simplifying IP/MPLS networks and for providing a solution to address the emerging requirements of 5G/IoT and service virtualization. We believe SR-MPLS and SRv6 will be increasingly deployed in service provider, enterprise, and data center networks. However, it is still early days for SRv6, and there is still a lot of work ahead to develop the vendor ecosystem and get to standardized, interoperable implementations of key features and services.

August 06, 2019 – News – SRv6, SRMPLS

Using SR-TE IGP Flex-Algo in the Multiplanar Backbone design (

This whitepaper describes the drivers, use cases, and design of the multiplanar backbone.
Given stringent financial controls, flat CapEx and OpEx budgets, and being asked to do more with the same or less, network operators are limited in their ability to create new services and new revenue streams.
The concept of a multiplanar design, or multiplanar backbone (MPBB), which this document introduces, can be used to deliver the next generation of services and support as well as increase reliability and performance over today’s current network designs.
The MPBB design leverages the flexibility and simplicity of SR-TE IGP Flex-Algo. Read this document to find out how Flex-Algo helps realizing the MPBB goals.

August 01, 2019 – News – SRMPLS

Equinix Segment Routing-powered network delivers increased value to its customers (

In this blog Muhammad Durrani, leading Global Network Architecture and Engineering at Equinix, explains how SR builds value to their customers. As the world’s global data center interconnection leader, Equinix is constantly innovating on behalf of its customers to help them grow their businesses. At the core of the Equinix interconnection value proposition is a global network infrastructure that offers multiple network services to both Service Providers and Enterprises alike. To offer new and differentiated value-added services and to provide a second-to-none customer experience, Equinix is implementing Segment Routing in their next-generation network infrastructure.

July 02, 2019 – News – SRv6, SRMPLS

SoftBank Started operation of “SRv6 (segment routing IPv6)” in mobile IP network (

Softbank Corporation announced that they introduced SRv6 and began full-scale operation on a commercial network from April 2019.
Softbank aims to further enhance the efficiency and functionality of the network by introducing the latest technologies such as SRv6, and aims to realize a highly reliable mobile network that can cope with the future traffic for the age of 5G and IoT.
Click here for an English translation.

April 24, 2019 – News – SRv6

EANTC Multi-Vendor Interoperability Test 2019 (

EANTC AG, the European Advanced Networking Test Center published the results of the latest massive multi-vendor interoperability test with 174 successful test combinations involving 68 device types from 19 vendors.
The multi-vendor event focuses on the interoperability of the full range of next-generation wide-area transport solutions, network management and clock synchronization. Segment Routing MPLs and SRv6, Flex-Algo, and SR-TE are among the tested solutions.
Click here to access the EANTC whitepaper PDF.

April 09, 2019 – News – SRv6, SRMPLS

Etisalat and Cisco have successfully deployed the first segment routing technology in the region (

DUBAI, UAE: Etisalat and Cisco have successfully deployed the first segment routing technology in the region over its international network with closed-loop automation, introducing automation and software-defined networking (SDN) to the service provider’s Emirates Internet Exchange (EMIX) network, deploying cutting-edge technologies that set the foundation for new opportunities and business models.

March 25, 2019 – News – SRMPLS

NANOG75 SR Flexible Algorithms

Jose Liste presents SR IGP Flexible Algorithms, the flexible tool in the SR-TE toolkit. Its functionality and its use-cases

March 22, 2019 – Conferences – SRv6, SRMPLS

Cisco Supports SoftBank on First Segment Routing IPv6 (SRv6) Deployment in Prep for 5G (

At the Mobile World Congress in Barcelona, Cisco announced its collaboration with SoftBank on the world's first Segment Routing IPv6 (SRv6) deployment. With the anticipation of the coming 5G era, Cisco has been assisting SoftBank to deploy state-of-the-art Segment Routing IPv6 (SRv6) networks nationwide to build a future network architecture that is extremely scalable, with improved reliability, flexibility and agility, all while helping to reduce CapEx and OpEx.

February 24, 2019 – News – SRv6

Cisco Live Barcelona 2019

Clarence Filsfils presents Segment Routing Technology deep-dive and advanced use cases: SR-TE and SRv6. Demos from Anton Karneliuk (Vodafone) and Jose Liste (Cisco).

January 30, 2019 – Conferences – SRv6

Forefront of SRv6 at JANOG43

Clarence Filsfils, Miya Kohno, Satoru Matsushima, Kentaro Ebisawa, Chunghan Lee and Teppei Kamata presenting the latest SRv6 updates.

January 23, 2019 – Conferences – SRv6

Cisco SP Nails It at NFDx (

The topic-du-jour was definitely Segment Routing, and Cisco delivered great presentations on both SR-TE (Segment Routing – Tunnel Engineering) with SR Flexible Algorithm, and SRv6 (Segment Routing for IPv6).

January 15, 2019 – News – SRv6, SRMPLS


CNSM 2018 - SRv6 keynote

Clarence Filsfils: SRv6 solution, use-cases, deployments and research opportunities

November 06, 2018 – Conferences – SRv6

SRv6 - Building Next-Gen Programmable Network Infrastructure (

Segment routing is not a new concept in the networking industry and it has gained great popularity among service providers around the globe. While service providers are adopting it for the multiprotocol label switching (MPLS) data plane that is deployed extensively in existing networks, there is an increased interest to use segment routing with the IPv6 data plane for network programming (SRv6 network programming). There are many use cases that can benefit from the SRv6 network programming concept. Today, 5G is the main driver for fast-paced development of SRv6 standards to simplify the user plane and network plane. With Ixia’s IxNetwork SRv6 solution, customers can simulate SRv6 networks with many nodes to validate device under test (DUT) functions in different roles (ingress node, intermediate node, and egress node) and assess the performance for both control- and data-plane...

October 10, 2018 – News – SRv6

ACG Research Paper: Segment Routing (

Service providers and large enterprises face stiff challenges: the network infrastructure and their operations are growing at tremendous pace and becoming complex. IP/MPLS networks have become operation intensive because of their complex implementations. Service providers feel the added pressure of falling revenues and stiff competition by the over-the-top providers as well as the challenge to innovate. These drivers make the network owners think about a transport technology that can provide convergence across layers, domains and offload the complexities in the networks today. One of these technologies is Segment Routing (SR), which has caught the attention of the network planners because of its potential to ...

August 29, 2018 – News – SRv6, SRMPLS

Celebrating Segment Routing’s 5th Birthday (

With the explosive growth of network traffic, there is more pressure than ever on the network to operate with simplicity, speed, scale and resiliency. Since the emergence of Segment Routing (SR) five years ago, more and more customers have turned to this technology to help address the challenges of digitization and to accelerate the network transformation necessary to meet those challenges.

June 26, 2018 – News – SRv6, SRMPLS

SR @ MPLS WC 2018 interop (

Read Jose Liste’s blog documenting the prominent role that SR played at MPLS WC 2018 interop. This event provides the latest proof-point of overwhelming multi-vendor support for SR.

May 08, 2018 – News – SRMPLS

CO Orchestration using SR-VTS

Demonstration on SP Central Office Fabric Orchestration using Cisco VTS with Segment Routing.

April 18, 2018 – Demos – SRv6, SRMPLS

MPLS World Congress 2018

Arkadiy Guiko: Flexible Algorithms in IGP, a Distributed SR-TE Solution

April 12, 2018 – Conferences – SRMPLS

Colt Fast-Tracks the Delivery of New Services with Cisco Segment Routing and Ethernet VPN (

Cisco and Colt Technology Services announced today that they have successfully achieved a key milestone in upgrading Colt's pan-European, U.S. and Asian packet network. This lays the foundation for the Colt IQ Network to deliver further differentiated, high-bandwidth connectivity solutions. Colt's next-generation packet network uses end-to-end segment routing technology to simplify and automate network operation and significantly reduce operating costs. With the quality, speed, capacity and flexibility to meet application-specific service quality requirements, Colt’s customers will benefit from an infrastructure designed for enabling digital businesses.

April 05, 2018 – News – SRv6, SRMPLS

SR IGP Flex Algo

In this presentation Clarence Filsfils explains in detail the SR IGP Flexible Algorithm and how it complements SR TE.

February 07, 2018 – Conferences – SRv6, SRMPLS

SR MPLS Perf Monitoring

In this presentation Clarence Filsfils explains in detail the SR MPLS Performance Monitoring solution and its benefits.

February 06, 2018 – Conferences – SRMPLS

ACG HotSeat: Sumeet Arora

Sumeet Arora, SVP, Cisco, and Ray Mota, CEO of ACG Research, talk about segment routing and how it leverages the distributed intelligence of the network and centralized optimization to enable applications.

February 05, 2018 – Conferences – SRv6, SRMPLS

MENOG 2018

Rasoul Mesghali presented SR at the Middle East Network Operator Group.

February 05, 2018 – Conferences – SRv6, SRMPLS

Flexible Algorithm makes Segment Routing Traffic Engineering even more agile (

As more and more Service Providers and Enterprises operate a single network infrastructure to support an ever-increasing number of services, the ability to custom fit transport to application needs is critically important. In that respect, network operators have been exploring Traffic Engineering techniques for some years now but have obviously run into many scaling issues preventing them from having an end-to-end, fine-grained control over the myriad services they offer. We firmly believe Segment Routing Traffic Engineering (SR TE) has changed the game and has become the undisputed solution to deliver Traffic Engineering capabilities at scale. What makes SR Flexible Algorithm a noteworthy addition to SR TE solution?

January 25, 2018 – News – SRv6, SRMPLS



Watch Jakub Horn demonstrate the benefits of Tree-SID.

December 26, 2017 – Demos – SRv6, SRMPLS

Packet Pushers podcast on SRv6 (

Today on the Packet Pushers Weekly Show we talk about control. Imagine being able to control every flow in your data center in a granular way, and not just based on the best path your routing protocol decides or the random hashing your ECMP comes up with. How do you get beyond the forwarding we’re used to? By manipulating flows with modern tools. One such tool is IPv6 segment routing (SRv6). Cisco, along with network architects from Bell Canada and LinkedIn, discuss just how IPv6 Segment Routing makes the network programmable in this sponsored episode.

December 15, 2017 – News – SRv6

Bell Canada implements Cisco Segment Routing (

Over the past few weeks, Bell Canada has successfully rolled out Segment Routing in its next-generation core network, marking a milestone as the first Canadian carrier to actively use this innovative technology for network automation and software-defined networking (SDN) capabilities.

December 04, 2017 – News – SRv6, SRMPLS

NANOG 2017

Gaurav Dawra gives an overview of SRv6 and the concept of network as a computer. He also reviews the deployment use-cases with Comcast.

October 05, 2017 – Conferences – SRv6

Simplifying Networks through Segment Routing (

The networking industry is going through an incredibly dynamic time of change and opportunity. Global IP traffic will increase nearly threefold over the next five years and 127-fold from 2005 to 2021. The number of devices connected to IP networks by 2021 will be three times higher than the global population. On top of that, the diversity of applications has never been greater, with each having its own set of requirements and hurdles. This unprecedented growth requires Service Providers to transform their networks, and Segment Routing is becoming one of the keys to successfully paving the way to that transformation.

September 27, 2017 – News – SRv6, SRMPLS

SD-WAN Summit 2017

Watch Clarence Filsfils at the SD-WAN Summit 2017 explaining the benefits of SRv6 for the SD-WAN!

September 26, 2017 – Conferences – SRv6

Mass Scale Networking with SRv6

In this cisco webinar Clarence Filsfils gives an overview on how Segment Routing for IPv6 helps Mass Scale Networking.

September 12, 2017 – Conferences – SRv6

Segment Routing IPv6 — Interoperability demo is already there! (

Who would have bet on a SRv6 interoperability demonstration at SIGCOMM 2017 conference this summer? Very few of us actually… For those who are not familiar with the SIGCOMM 2017 conference, this is a highly respected conference where key networking innovations and orientations are being discussed every year by leading vendors, major web and service providers, and academic researchers.

September 07, 2017 – News – SRv6

Segment Routing — Ready to Surf the v6 Wave? (

Segment Routing has crossed the chasm — "Early Adopters" have already embraced it, and now the "Early Majority" is adopting it. Interestingly, at the very same time the industry is surfing the Segment Routing MPLS wave, the next wave is already coming in and will even be more disruptive to the way you design and engineer your network infrastructure – this is the Segment Routing IPv6 (SRv6) wave.

July 19, 2017 – News – SRv6

SRv6 VPN and TE on NCS 5500

Watch this demo that showcases the first hardware implementation of SRv6 VPN and TE. The hardware-based forwarding is demonstrated on Cisco NCS 5500 Series.

May 15, 2017 – Demos – SRv6

Demo: SRv6 VPN and TE on NCS 5500

Watch this demo that showcases the first hardware implementation of SRv6 VPN and TE. The hardware-based forwarding is demonstrated on Cisco NCS 5500 Series.

May 15, 2017 – Conferences – SRv6

Add a dollop of XTC to your network infrastructure (

Google XTC and you find out it was an English rock band formed in 1972 and active till 2006... It probably does not ring a bell to most of you — at least for me, I can’t recall any of their songs. XTC had another connotation in the 1980’s, but that’s not the point here either.

May 10, 2017 – News – SRv6, SRMPLS


Cisco Pioneer Awards 2016

Segment Routing is the winner of the Cisco Pioneer Award 2016 in the category "Core Technology". The Pioneer is Cisco’s highest engineering award recognizing the pioneering spirit of innovation.

November 25, 2016 – Conferences – SRv6, SRMPLS

SR Now and into the Future

Watch Bertrand Duvivier, Cisco's Principal Engineer, on the genesis and future for Segment Routing

November 23, 2016 – Conferences – SRv6, SRMPLS

SR is the de-facto SDN Network Architecture

Watch Colin Kincaid, Cisco's SP CTO, views on how virtualization is transforming Service Providers and the role played by IPv6 and Segment Routing as the de-facto next-gen architecture.

November 20, 2016 – Conferences – SRv6

SRv6 Spray use-case

Watch Jose Liste's demonstration of the SRv6 "spray" multicast use case. Learn how to leverage SRv6 to transport multicast traffic on an IPv6 unicast-only network.

November 09, 2016 – Demos – SRv6

SR On-Demand Next Hops (ODN)

Watch Jose Liste's demonstration of SR ODN. Learn how SR enables end-to-end SLA from datacenter to metro to backbone at scale.

November 08, 2016 – Demos – SRv6, SRMPLS

Topology Independent - Loop Free Alternate (TI-LFA)

Watch Kris Michielsen's demonstration of TI-LFA. TI-LFA provides automated sub-50msec FRR in any topology, along the optimum backup path, against link, node or SRLG failure.

November 07, 2016 – Demos – SRv6, SRMPLS

Microloop Avoidance

Watch Kris Michielsen's demonstration of Microloop Avoidance. Experience first hand how SR eliminates microloops, a day-1 problem of IP networks.

November 06, 2016 – Demos – SRv6, SRMPLS

Cisco Live 2016, Las Vegas

At Cisco Live 2016, Las Vegas, USA, Steve Braaten (Cisco) presents Segment Routing advanced use cases

October 06, 2016 – Conferences – SRv6, SRMPLS

Why I care about Segment Routing (

As a WAN guy by chance and opportunity, and a service provider engineer and architect by choice (and also chance and opportunity), segment routing (SR) is one of those wonderful new technologies that keeps rearing its head over and over in recent days – and it’s already playing in the big leagues.

October 03, 2016 – News – SRv6, SRMPLS

What is Segment Routing? (

Do you remember source routing, used in token ring bridging networks? If you're relatively new to networking, you may not know about it. In source routing, the hosts determine the path to take through the network and build a frame header that specifies the forwarding nodes that the frame should pass through as it goes from source to destination.

September 22, 2016 – News – SRv6, SRMPLS

Bringing Segment Routing and IPv6 together (

You may be pretty familiar with Segment Routing and I bet you’re likely tying it to MPLS as the industry at large has been mainly focused on driving awareness and adoption of MPLS Segment Routing. But did you know Segment Routing could work in a native IPv6 environment? Sounds interesting to you?

August 30, 2016 – News – SRv6, SRMPLS

Supercharge Your Network with Segment Routing Innovations! (

2016 is clearly an inflection point in Segment Routing adoption. Enterprise and Service Providers have tested and validated the technology and are ready to roll out the technology in live networks. Customers now fully understand the benefits of the technology - it's all about bringing simplicity and scalability to the network. No RSVP, no midpoint state, no tunnel to configure!

May 24, 2016 – News – SRv6, SRMPLS


MPLS/SDN World Congress 2014

MPLS/SDN world Congress 2014, Paris: Segment Routing based Traffic Engineering Introduction.

September 26, 2014 – Conferences – SRMPLS


SGNOG2: Segment Routing

SGNOG2 (Singapore Network Operator's Group): Segment Routing Overview

September 26, 2013 – Conferences – SRv6, SRMPLS