Junos Segment Routing with SRv6 Micro-SIDs

This three-day course provides an in-depth introduction to segment routing (SR), otherwise known as Source Packet Routing in Networking (SPRING). The course focuses on using IS-IS and BGP to deploy SRv6 micro-SIDs, which encodes multiple instructions into a single IPv6 address in the data plane.

After exploring the features and use cases for SRv6 with micro-SIDs, students are introduced to the fundamentals of a segment-routed network. This includes locator blocks, locator prefixes, and a variety of BGP service functions such as uDT4 and uDT6 segments. This also includes VPN configuration, with a focus on Layer 3 VPNs and the MPLS label transposition process.

Students are then taught how an SRv6 micro-SID network can encode multiple segments into a single address, and the segment popping process that takes place across a path. Students configure End and End. X transport segments to test this, which acts as a starting point to deploy a variety of backup paths with Topology-Independent Loop-Free Alternate (TI-LFA). Finally, students consider multitopology designs with Flex Algo, including Classful Transport and the BGP color community. A brief self-study section then follows that considers classic SRv6.

Students also briefly learn the most fundamental concepts of SR-MPLS. This knowledge enables students to compare and contrast the two SR methods.