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Segment Routing (SR) will revolutionize routing in the MPLS backbone. By extending the routing protocols to include label distribution with global significance, the use of an additional protocol such as LDP can be dispensed with. However, this alone would not be a reason to replace LDP. SR also promises to eliminate the many disadvantages of classic MPLS traffic engineering (TE) with RSVP signalling and, in conjunction with SDN controllers, to make TE scalable, optimized and manageable. In addition, an SR network has the ability to guarantee fast rerouting (FRR) for all links in the backbone and can be seamlessly integrated into an existing MPLS backbone. However, SR can also score points outside the MPLS backbone with its simple and scalable source routing concept with application options for service chaining or egress load sharing.
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Course Contents
-
- Motivation and comparison with the classic MPLS solution
- SR architecture with MPLS data plane
- SR architecture with IPv6 data plane
- SR integration in IS-IS, OSPF and BGP
- Interaction of classic LDP with SR (migration phase)
- Effects on existing services such as L2 or L3 MPLS VPNs
- Topology Independent Fast Rerouting (TI FRR) with SR
- Comparison of classic MPLS-TE with RSVP to TE
- TE via an SDN controller
- The Path Computation Element (PCE)
- Extracting topology information with BGP-LS
- Setting up and monitoring TE paths with PCEP
- Application examples and use cases also outside the MPLS backbone
Practical exercises in a test network with Cisco IOS XR are used to illustrate the relationships. A suitable SDN controller is used to illustrate a PCE.
The detailed digital documentation package, consisting of an e-book and PDF, is included in the price of the course.
Premium Course Documents
In addition to the digital documentation package, the exclusive Premium Print Package is also available to you.
- High-quality color prints of the ExperTeach documentation
- Exclusive folder in an elegant design
- Document pouch in backpack shape
- Elegant LAMY ballpoint pen
- Practical notepad
The Premium Print Package can be added during the ordering process for € 150,- plus VAT (only for classroom participation).
-
Target Group
-
The event is aimed at network planners and administrators who want to learn about the possibilities of SR and gain the necessary knowledge to integrate SR into their own network.
-
Knowledge Prerequisites
-
Good knowledge of IP and MPLS networks and especially routing with IS-IS or OSPF and BGP is required. Experience with LDP and RSVP in an MPLS backbone is advantageous.
| 1 | Introduction and Motivation |
| 1.1 | Overlay Networks |
| 1.2 | MPLS |
| 1.3 | The Protocols LDP and RSVP |
| 1.3.1 | LDP |
| 1.3.2 | RSVP-TE |
| 1.4 | The New Variant: Segment Routing MPLS |
| 2 | SR—Definitions and Function |
| 2.1 | Basic Terms of MPLS |
| 2.1.1 | The MPLS Header |
| 2.1.2 | Label Operations |
| 2.1.3 | The Label Stack |
| 2.1.4 | The Label-Forwarding Information Base |
| 2.1.5 | Classic Label Distribution |
| 2.2 | Basic Terms of Segment Routing |
| 2.2.1 | PUSH, CONTINUE, and NEXT |
| 2.3 | Segment Routing with MPLS Labels as SIDs |
| 2.3.1 | The Segment Routing Global Block (SRGB) |
| 2.3.2 | SID—Index or Absolute Value |
| 2.3.3 | Behavior with Differing SRGBs |
| 2.3.4 | The IGP Prefix Segment |
| 2.3.5 | The Adjacency Segment |
| 2.3.6 | The Anycast Segment |
| 2.3.7 | The BGP Prefix Segment |
| 2.3.8 | The BGP Peering Segments |
| 2.3.9 | The Binding Segment |
| 2.4 | IS-IS Extensions for SR |
| 2.4.1 | IS-IS Router Capability TLV |
| 2.4.2 | IS-IS-TLV Extended IPv4 Reachability |
| 2.4.3 | IS-IS-TLV Extended IS Reachability |
| 2.4.4 | IS-IS SID/Label Binding TLV |
| 2.5 | SRv6 |
| 2.5.1 | SID with SRv6 |
| 2.5.2 | The SR Header |
| 2.5.3 | Encapsulation Options |
| 2.5.4 | Use Cases |
| 3 | Application Scenarios |
| 3.1 | MPLS Backbone without LDP (Migration) |
| 3.1.1 | Advantages of the SR MPLS Backbone |
| 3.1.2 | Migration from LDP to SR |
| 3.1.3 | Completely without LDP? |
| 3.2 | IP Fast Rerouting—TI-LFA |
| 3.2.1 | Loop Free Alternate (LFA) |
| 3.2.2 | Drops and Micro-loops |
| 3.2.3 | P-Space |
| 3.2.4 | Extended P-Space |
| 3.2.5 | Q-Space |
| 3.2.6 | PQ-Space |
| 3.2.7 | FRR Repair Path |
| 3.2.8 | P-not-Q |
| 3.2.9 | Link Protection, Node Protection, SRLGs |
| 3.3 | MPLS VPNs |
| 3.3.1 | Modern L3-MPLS VPNs with SR |
| 3.3.2 | Traditional MPLS L2-VPNs |
| 3.3.3 | Modern MPLS L2-VPNs with SR |
| 3.3.4 | More VPN Control Planes |
| 3.4 | Segment Routing Traffic Engineering (SR-TE) |
| 3.4.1 | TE Topology |
| 3.4.2 | SR-TE Policy |
| 3.4.3 | SR-Policy Candidate Path |
| 3.4.4 | Path Selection and SR Policy Binding SID |
| 3.4.5 | SR Policy Forwarding |
| 3.4.6 | SR Policy Binding SID Forwarding |
| 3.4.7 | BGP and SR-TE |
| 3.4.8 | Facility Backup |
| 3.4.9 | Flex-Algo |
| 4 | SDN and Segment Routing |
| 4.1 | Software-Defined Networking |
| 4.1.1 | SDN and MPLS |
| 4.2 | BGP-LS |
| 4.2.1 | Several IGP Domains |
| 4.2.2 | Example: IOS XE by Cisco |
| 4.3 | Path Computation Element Protocol (PCEP) |
| 4.3.1 | Stateless vs. Stateful PCE |
| 4.3.2 | Disjoint Path |
| 4.3.3 | Bidirectional Corouted LSPs |
| 4.3.4 | Bandwidth Management |
| 4.3.5 | Circuit Style SR-TE |
| 4.4 | Use Case: Cross-Domain SR TE |
| A | List of Abbreviations |
-
Classroom training
- Do you prefer the classic training method? A course in one of our Training Centers, with a competent trainer and the direct exchange between all course participants? Then you should book one of our classroom training dates!
-
Online training
- You wish to attend a course in online mode? We offer you online course dates for this course topic. To attend these seminars, you need to have a PC with Internet access (minimum data rate 1Mbps), a headset when working via VoIP and optionally a camera. For further information and technical recommendations, please refer to.
-
Tailor-made courses
-
You need a special course for your team? In addition to our standard offer, we will also support you in creating your customized courses, which precisely meet your individual demands. We will be glad to consult you and create an individual offer for you.
You can find the complete description of this course with dates and prices ready for download at as PDF.-
Segment Routing (SR) will revolutionize routing in the MPLS backbone. By extending the routing protocols to include label distribution with global significance, the use of an additional protocol such as LDP can be dispensed with. However, this alone would not be a reason to replace LDP. SR also promises to eliminate the many disadvantages of classic MPLS traffic engineering (TE) with RSVP signalling and, in conjunction with SDN controllers, to make TE scalable, optimized and manageable. In addition, an SR network has the ability to guarantee fast rerouting (FRR) for all links in the backbone and can be seamlessly integrated into an existing MPLS backbone. However, SR can also score points outside the MPLS backbone with its simple and scalable source routing concept with application options for service chaining or egress load sharing.
-
Course Contents
-
- Motivation and comparison with the classic MPLS solution
- SR architecture with MPLS data plane
- SR architecture with IPv6 data plane
- SR integration in IS-IS, OSPF and BGP
- Interaction of classic LDP with SR (migration phase)
- Effects on existing services such as L2 or L3 MPLS VPNs
- Topology Independent Fast Rerouting (TI FRR) with SR
- Comparison of classic MPLS-TE with RSVP to TE
- TE via an SDN controller
- The Path Computation Element (PCE)
- Extracting topology information with BGP-LS
- Setting up and monitoring TE paths with PCEP
- Application examples and use cases also outside the MPLS backbone
Practical exercises in a test network with Cisco IOS XR are used to illustrate the relationships. A suitable SDN controller is used to illustrate a PCE.
The detailed digital documentation package, consisting of an e-book and PDF, is included in the price of the course.
Premium Course Documents
In addition to the digital documentation package, the exclusive Premium Print Package is also available to you.
- High-quality color prints of the ExperTeach documentation
- Exclusive folder in an elegant design
- Document pouch in backpack shape
- Elegant LAMY ballpoint pen
- Practical notepad
The Premium Print Package can be added during the ordering process for € 150,- plus VAT (only for classroom participation).
-
Target Group
-
The event is aimed at network planners and administrators who want to learn about the possibilities of SR and gain the necessary knowledge to integrate SR into their own network.
-
Knowledge Prerequisites
-
Good knowledge of IP and MPLS networks and especially routing with IS-IS or OSPF and BGP is required. Experience with LDP and RSVP in an MPLS backbone is advantageous.
| 1 | Introduction and Motivation |
| 1.1 | Overlay Networks |
| 1.2 | MPLS |
| 1.3 | The Protocols LDP and RSVP |
| 1.3.1 | LDP |
| 1.3.2 | RSVP-TE |
| 1.4 | The New Variant: Segment Routing MPLS |
| 2 | SR—Definitions and Function |
| 2.1 | Basic Terms of MPLS |
| 2.1.1 | The MPLS Header |
| 2.1.2 | Label Operations |
| 2.1.3 | The Label Stack |
| 2.1.4 | The Label-Forwarding Information Base |
| 2.1.5 | Classic Label Distribution |
| 2.2 | Basic Terms of Segment Routing |
| 2.2.1 | PUSH, CONTINUE, and NEXT |
| 2.3 | Segment Routing with MPLS Labels as SIDs |
| 2.3.1 | The Segment Routing Global Block (SRGB) |
| 2.3.2 | SID—Index or Absolute Value |
| 2.3.3 | Behavior with Differing SRGBs |
| 2.3.4 | The IGP Prefix Segment |
| 2.3.5 | The Adjacency Segment |
| 2.3.6 | The Anycast Segment |
| 2.3.7 | The BGP Prefix Segment |
| 2.3.8 | The BGP Peering Segments |
| 2.3.9 | The Binding Segment |
| 2.4 | IS-IS Extensions for SR |
| 2.4.1 | IS-IS Router Capability TLV |
| 2.4.2 | IS-IS-TLV Extended IPv4 Reachability |
| 2.4.3 | IS-IS-TLV Extended IS Reachability |
| 2.4.4 | IS-IS SID/Label Binding TLV |
| 2.5 | SRv6 |
| 2.5.1 | SID with SRv6 |
| 2.5.2 | The SR Header |
| 2.5.3 | Encapsulation Options |
| 2.5.4 | Use Cases |
| 3 | Application Scenarios |
| 3.1 | MPLS Backbone without LDP (Migration) |
| 3.1.1 | Advantages of the SR MPLS Backbone |
| 3.1.2 | Migration from LDP to SR |
| 3.1.3 | Completely without LDP? |
| 3.2 | IP Fast Rerouting—TI-LFA |
| 3.2.1 | Loop Free Alternate (LFA) |
| 3.2.2 | Drops and Micro-loops |
| 3.2.3 | P-Space |
| 3.2.4 | Extended P-Space |
| 3.2.5 | Q-Space |
| 3.2.6 | PQ-Space |
| 3.2.7 | FRR Repair Path |
| 3.2.8 | P-not-Q |
| 3.2.9 | Link Protection, Node Protection, SRLGs |
| 3.3 | MPLS VPNs |
| 3.3.1 | Modern L3-MPLS VPNs with SR |
| 3.3.2 | Traditional MPLS L2-VPNs |
| 3.3.3 | Modern MPLS L2-VPNs with SR |
| 3.3.4 | More VPN Control Planes |
| 3.4 | Segment Routing Traffic Engineering (SR-TE) |
| 3.4.1 | TE Topology |
| 3.4.2 | SR-TE Policy |
| 3.4.3 | SR-Policy Candidate Path |
| 3.4.4 | Path Selection and SR Policy Binding SID |
| 3.4.5 | SR Policy Forwarding |
| 3.4.6 | SR Policy Binding SID Forwarding |
| 3.4.7 | BGP and SR-TE |
| 3.4.8 | Facility Backup |
| 3.4.9 | Flex-Algo |
| 4 | SDN and Segment Routing |
| 4.1 | Software-Defined Networking |
| 4.1.1 | SDN and MPLS |
| 4.2 | BGP-LS |
| 4.2.1 | Several IGP Domains |
| 4.2.2 | Example: IOS XE by Cisco |
| 4.3 | Path Computation Element Protocol (PCEP) |
| 4.3.1 | Stateless vs. Stateful PCE |
| 4.3.2 | Disjoint Path |
| 4.3.3 | Bidirectional Corouted LSPs |
| 4.3.4 | Bandwidth Management |
| 4.3.5 | Circuit Style SR-TE |
| 4.4 | Use Case: Cross-Domain SR TE |
| A | List of Abbreviations |
-
Classroom training
- Do you prefer the classic training method? A course in one of our Training Centers, with a competent trainer and the direct exchange between all course participants? Then you should book one of our classroom training dates!
-
Online training
- You wish to attend a course in online mode? We offer you online course dates for this course topic. To attend these seminars, you need to have a PC with Internet access (minimum data rate 1Mbps), a headset when working via VoIP and optionally a camera. For further information and technical recommendations, please refer to.
-
Tailor-made courses
-
You need a special course for your team? In addition to our standard offer, we will also support you in creating your customized courses, which precisely meet your individual demands. We will be glad to consult you and create an individual offer for you.
You can find the complete description of this course with dates and prices ready for download at as PDF.