@techreport{hu-lsr-igp-link-mtu-03, number = {draft-hu-lsr-igp-link-mtu-03}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-hu-lsr-igp-link-mtu/03/}, author = {Zhibo Hu and Shuping Peng and Xing Xi}, title = {{IGP Extensions for Link MTU}}, pagetotal = 10, year = 2024, month = jul, day = 30, abstract = {Segment routing (SR) leverages the source routing mechanism. It allows for a flexible definition of end-to-end paths within IGP topologies by encoding paths as sequences of topological sub-paths which are called segments. These segments are advertised by the link-state routing protocols (IS-IS and OSPF). Unlike the MPLS, SR does not have the specific path construction signaling so that it cannot support the Path MTU. 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.}, }