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LDP Extensions for Multi Topology Routing

This document discusses the necessary extensions to the Label Distribution Protocol (LDP) to enable Multi-Topology (MT) routing within MPLS networks. These enhancements are crucial for IP networks utilizing MT-aware IGP protocols. The document also outlines the current status of draft-ietf-mpls-ldp-multi-topology-04, incorporating feedback from implementations, updates on error handling, and potential use cases. Final reviews from implementers are anticipated as we prepare for the Last Call. The main goal is to provide stable and efficient MT routing solutions.

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LDP Extensions for Multi Topology Routing

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  1. LDP Extensions for Multi Topology Routing Q. Zhao – Huawei E. Chen - Huawei L. Fang – Cisco C. Zhou – Cisco K. Kamran – Cisco L. Li – China Mobile Et al. D. King – Old Dog Consulting IETF 84 - Vancouver

  2. Motivation • Multi-Topology (MT) routing is supported in IP networks with the use of MT aware IGP protocols. • In order to provide MT routing within Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) networks new extensions are required. • This document describes the LDP protocol extensions required to support MT routing in an MPLS environment. IETF 84 - Vancouver

  3. Current Status & Next Steps • draft-ietf-mpls-ldp-multi-topology-04 • Reduced text, moved Requirements and Use Cases to Appendix. • Implementation feedback has been blended into the document. • Recently updated error handling & use cases. • Document is relatively stable. • Next Steps • We would like final reviews from other implementers. • Use Cases • Procedures • Error Handling • Looking to Last Call next month. IETF 84 - Vancouver

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