%% You should probably cite draft-ietf-rift-rift-21 instead of this revision. @techreport{ietf-rift-rift-12, number = {draft-ietf-rift-rift-12}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-rift-rift/12/}, author = {Tony Przygienda and Alankar Sharma and Pascal Thubert and Bruno Rijsman and Dmitry Afanasiev}, title = {{RIFT: Routing in Fat Trees}}, pagetotal = 163, year = 2020, month = may, day = 26, abstract = {This document defines a specialized, dynamic routing protocol for Clos and fat-tree network topologies optimized towards minimization of configuration and operational complexity. The protocol o deals with no configuration, fully automated construction of fat- tree topologies based on detection of links, o minimizes the amount of routing state held at each level, o automatically prunes and load balances topology flooding exchanges over a sufficient subset of links, o supports automatic disaggregation of prefixes on link and node failures to prevent black-holing and suboptimal routing, o allows traffic steering and re-routing policies, o allows loop-free non-ECMP forwarding, o automatically re-balances traffic towards the spines based on bandwidth available and finally o provides mechanisms to synchronize a limited key-value data-store that can be used after protocol convergence to e.g. bootstrap higher levels of functionality on nodes.}, }