Tutorial
1. IETF105 Path MTU in BGP & BGP-LS
Publication URL: PDF - IETF105 Path MTU in BGP & BGP-LS
Introduction:
This document introduce the BGP and BGP-LS extension for Path Segment.
IETF
1. Segment Routing Path MTU in BGP
Publication URL: https://datatracker.ietf.org/doc/html/draft-ietf-idr-sr-policy-path-mtu
Introduction:
This document defines extensions to BGP to distribute path MTU information within SR policies.
2. Signaling Maximum Transmission Unit (MTU) using BGP-LS
Publication URL: https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-ls-link-mtu
Introduction:
This document specify the extension to BGP Link State (BGP-LS) to carry maximum transmission unit (MTU) messages of link. The PCE/SDN calculates the Path MTU while completing the service path calculation based on the information transmitted by the BGP-LS.
3. Support for Path MTU (PMTU) in the Path Computation Element Communication Protocol (PCEP)
Publication URL: https://datatracker.ietf.org/doc/html/draft-ietf-pce-pcep-pmtu
Introduction:
This document specify the extension to PCE communication protocol (PCEP) to carry path (MTU) in the PCEP messages.
4. IGP Extensions for Path MTU
Publication URL: https://datatracker.ietf.org/doc/html/draft-hu-lsr-igp-link-mtu
Introduction:
This draft provides the necessary IS-IS and OSPF extensions about the Path MTU that need to be used on SR. Here, the term “OSPF” means both OSPFv2 and OSPFv3.
5. Path MTU (PMTU) for Segment Routing Policy
Publication URL: https://datatracker.ietf.org/doc/html/draft-peng-spring-pmtu-sr-policy
Introduction:
This document defines the Path MTU (PMTU) for SR Policy (called SR-PMTU) and it applies to both SRv6 and SR-MPLS. The framework of SR-PMTU for SR Policy is specified, including link MTU collection, SR-PMTU Computation, SR-PMTU Enforcement, and Handling behaviors on the headend.