Segment Routing & Traffic-Engineering (SR/SR-TE)

Name: Segment Routing & Traffic-Engineering (SR/SR-TE)
Rating: 4.8 (166 reviews)

Navigate the future of networking with Segment Routing technology

Created byOvidiu Roset (2*CCIE DC & SP #66024) | ping-factory.com

Last updated 3/2024

English

What you'll learn

EVE-NG topology, PPT presentation, PNG topology and configuration files included
Students will able to implement and troubleshoot SR in a live network
Understand the benefits of SR over alternatives (LDP/RSVP)
Deepdive into the details (flags, fields, etc)
Learn how to migrate LDP to SR
Master SR/SR-TE configuration
Course covers about 90% of the exam (lab and written) curriculum
Learn topics like SID, SRGB, SRMS, SR OAM, AS, ODN, Flex-Algo, BGP-EPE, BGP-LS, PCEP, SR-PCE, etc

Course content

5 sections • 68 lectures • 9h 42m total length

1.1 Intro2:19
1.2 Resources0:53
Get the software image from here: https://s.go.ro/dfpuuawk | password: 943772

This "All files.rar" is an archive with all the resources of this course. Some files have a specific ID (e.g.: 2.4, 2.9, 3.1, etc) which is the course's ID number. That is because the resource applies to that video specifically.
1.3 Agenda3:24
1.4 EVE-NG integration14:08
1.5 Topology10:35

2.1 What is Segment Routing5:31
2.2 Why use Segment Routing9:53
2.3 How does Segment Routing work9:06
2.5 ISIS SR configuration9:58
2.4 ISIS configuration10:12
SR ISIS config done file contains the configuration applied in videos 2.4 and 2.5.
Use it if you don't want to configure everything by yourself.

NOTE: if you don't see all ISIS neighbors, check if the "apply-group ISIS" command is applied under the ISIS process!
2.6 Segment Routing Global Block (SRGB)19:38
2.7 Prefix-SID - part 17:28
Explore how the prefix set in segment routing guides traffic to the advertised prefix along the shortest path using the associated MPLS label.
2.8 Prefix-SID - part 216:02
2.9 Anycast-SID10:53
Explore anycast in segment routing by advertising the same prefix from multiple nodes, using adjacency sets in ISIS, and clearing the N flag to ensure precise SR-TE path selection.
2.10 Adjacency-SID21:34
2.11 Segment Routing Local Block (SRLB)12:18
2.12 Router Capability TLV7:48
2.13 TI-LFA - part 110:44
2.14 TI-LFA - part 211:16
2.15 SR and LDP interworking - part 19:12
Demonstrates interworking of segment routing and mpls ldp, showing ldp label binding, label preference, and how to configure sr preference to influence imposition across edge and core routers.
2.16 SR and LDP interworking - part 213:58
Learn how segment routing and LDP interwork across two domains, with R3 as the segment routing mapping server, to form end-to-end LSP and merge LDP and SR forwarding.
2.17 Segment Routing Mapping Server (SRMS)13:36
2.18 Classic ping and traceroute16:08
2.19 Classic traceroute in MPLS PCAP11:42
2.20 MPLS ping and traceroute5:19
2.21 MPLS traceroute PCAP9:54
Capture and analyze MPLS traceroute PCAPs from R1 to 7.7.7.one, revealing TTL-based hops, downstream mapping, FIB next hops, and multipath equal-cost paths.
2.22 Segment Routing Operation and Maintenance (SR OAM)4:06
Explore troubleshooting segment routing with practical lab tests using ping, traceroute, and MPLS traceroute to verify labels and data plane behavior across routers three, five, and seven.
2.23 Nil FEC5:55
2.24 Broken LSP troubleshoot4:43
Breaks end-to-end to observe route changes after forcing a 1000 cost on R3–R5 and disabling segment routing, exposing ip-only paths, unlabeled interfaces, and the need to rollback SR with traceroute.
2.25 Traceroute multipath discovery5:51

3.1 SR-TE Intro3:29
SR-TE day 1 contains only the VPNv4 configuration applied.
Use this if you want to configure with me in parallel.

SR-TE full config contains the whole configuration I'm doing during this chapter.
Use this if you only want to go through the show commands.
3.2 SR-TE Theory8:23
Explore segment routing traffic engineering with color extended communities attached to VPNv4 routes. Use policies to match color and next hop and select lowest-delay or shortest-path paths.
3.3 Automated Steering14:45
3.4 On Demand Nexthop8:40
3.5 Wrap up1:27
3.6 SR-TE Paths Intro5:38
Explore segment routing with sr-te paths, comparing dynamic and explicit paths, with metrics like IGP and delay, and constraints such as affinity, srlg, and disjointness, plus load-balanced explicit paths.
3.7 Dynamic path - ECMP3:54
3.8 Dynamic path - metric types12:13
3.9 Dynamic path - affinity constraint19:32
3.10 Dynamic path - other constraints3:55
3.11 Explicit path15:04
Explore explicit path in segment routing traffic engineering, building segment lists from IP addresses or labels to direct traffic from R1 to R7 via hops, using policy and trace routes.
3.12 Explicit path - WECMP4:35
3.13 Explicit path - Adj-SID usage5:12
3.14 Explicit path - observations6:14
3.15 Preference2:54
3.16 SR-TE Outro2:14
3.17 Flex-Algo - part 16:08
3.18 Flex-Algo - part 218:04

4.1 Multi-domain Intro6:01
SR multi-domain day 1 contains only the ISIS and basic BGP configuration.
Use this if you want to configure with me in parallel.

SR full-config contains most of the configuration applied during this chapter like:
BGP EPE
BGP LS
MTE TE on the interconnection links
PCE/PCC
Disjoint paths configuration
Use this if you only want to go through the show commands.
4.2 Multi-domain topology8:28
4.3 Inter-domain LSP1:29
4.4 BGP Egress Peering Engineering (BGP EPE)6:51
4.5 Explicit path - Option 111:50
4.6 Dynamic path - Option 21:24
Understand how dynamic path works across two routing domains using BGP link state and segment routing, with a path computation element delivering segment lists for end-to-end LSP.
4.7 BGP Link State (BGP LS)25:21
4.8 BGP LS requirements4:59
4.9 SR Path Computation Element (SR PCE)13:53
4.10 SR PCE instantiation6:30
4.11 Disjoint paths4:31
Configure disjoint paths in segment routing traffic engineering to prevent node sharing between color 10 and color 20 policies, using a group ID and node-disjointness constraint.
4.12 Multi-domain Outro2:24
4.13 Binding-SID - Option 319:03

Requirements

MPLS fundamentals
ISIS, OSPF and BGP knowledge

Description

In this comprehensive course, you will learn how to implement Cisco IOS XR Segment Routing (SR/SR-TE) in your network, allowing you to optimize network performance, reduce operational complexity, and enhance network scalability. Through a combination of lectures, demonstrations, and hands-on lab exercises, you will gain an in-depth understanding of the Segment Routing architecture and its key components, including Topology Independent Loop Free Alternate (TI-LFA), Segment Routing Mapping Server (SRMS), Segment Routing Traffic Engineering (SR-TE), Segment Routing Path Computation Element (SR-PCE). You will also learn how to configure and troubleshoot Segment Routing policies, topologies using real-world scenarios and best practices.

By the end of the course, you will be able to:

Understand the fundamentals of Cisco IOS XR Segment Routing and its use cases
Configure and troubleshoot Segment Routing policies, topologies, and services
Optimize network performance and reduce operational complexity through SR-TE
Enhance network scalability and flexibility with Flex-Algo and the SR PCE
Apply best practices and real-world scenarios to your own network environment

This course is ideal for network engineers, administrators, and architects who are seeking to expand their knowledge and skills in the field of networking, and specifically in the area of Segment Routing. Basic knowledge of networking technologies is recommended.

Who this course is for:

Network engineers that operate live telecom networks
Students who want to understand the future of MPLS networks
Anyone else who is interested in the subject

Segment Routing & Traffic-Engineering (SR/SR-TE)

What you'll learn

Explore related topics

Course content

Introduction5 lectures • 31min

Segment Routing (SR)25 lectures • 4hr 23min

Segment Routing Traffic Engineering (SR-TE)18 lectures • 2hr 22min

Multi-domain scenario13 lectures • 1hr 53min

SR OSPF7 lectures • 34min

Requirements

Description

Who this course is for: