Explains how uSIDs improve SRv6 scalability by encoding multiple instructions within a SID carrier and guides users through allocation, deployment, configuration, and supported services.
Micro-segments offers a simplified approach to network segmentation. By leveraging the principles of Segment Identifiers (SIDs) and the network programming model of SRv6, micro-segments enable greater flexibility and scalability in modern networks.
This chapter explains the functionality of uSIDs, highlighting how they enhance the efficiency of SRv6 routing while reducing header overhead. It also explores their key benefits, limitations, and provides guidance for their implementation and configuration.
This chapter refers to SRv6 micro-segment as uSID.
SRv6 micro-segments
Explains how uSIDs encode multiple micro-instructions within a 128-bit SID carrier to reduce header overhead and improve scalability while retaining the SRv6 programming model.
Key concepts of SRv6 uSID
Defines the terminology and carrier structure used to encode, organize, and process micro-instructions within an SRv6 packet.
Benefits of uSID
Describes how uSIDs improve encoding efficiency, scalability, hardware utilization, deployment flexibility, and security while reducing the MTU overhead of source-routed paths.
Limitations for uSID
Identifies the endpoint behaviors, encapsulation options, packet attributes, and hardware capabilities supported or restricted when deploying uSIDs.
SRv6 uSID allocation within a uSID block
Explains how global and local uSIDs are assigned within a uSID block and provides guidelines for selecting the appropriate allocation method.
Configure SRv6
Guides users through configuring SRv6 locators, IS-IS, BGP services, and locator algorithms and verifying the resulting SRv6 state and SID allocations.
SRv6 uSID features
Summarizes the routing, traffic-engineering, VPN, service-chaining, monitoring, programmability, and assurance capabilities available for deploying uSIDs in underlay and overlay networks.