module ietf-bfd-lag { namespace "urn:ietf:params:xml:ns:yang:ietf-bfd-lag"; // replace with IANA namespace when assigned prefix "bfd-lag"; import ietf-bfd-types { prefix "bfd-types"; } import ietf-bfd { prefix "bfd"; } import ietf-interfaces { prefix "if"; } import ietf-inet-types { prefix "inet"; } import ietf-routing { prefix "rt"; } organization "IETF BFD Working Group"; contact "WG Web: WG List: Editors: Reshad Rahman (, Lianshu Zheng, Mahesh Jethanandani ("; description "This module contains the YANG definition for BFD over LAG interfaces as per RFC7130. Copyright (c) 2017 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents ( This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; revision 2017-10-30 { description "Initial revision."; reference "RFC XXXX: A YANG data model for BFD over LAG"; } // RFC Ed.: replace XXXX with actual RFC number and remove this // note augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/bfd:bfd" { description "BFD augmentation for LAG"; container lag { description "BFD over LAG top level container"; container micro-bfd-ipv4-session-statistics { description "Micro-BFD IPv4 session counters"; uses bfd-types:session-statistics; } container micro-bfd-ipv6-session-statistics { description "Micro-BFD IPv6 session counters"; uses bfd-types:session-statistics; } list sessions { key "lag-name"; description "A LAG interface on which BFD is running"; leaf lag-name { type if:interface-ref ; description "Name of the LAG"; } leaf ipv4-dest-addr { type inet:ipv4-address; description "IPv4 address of the peer, for IPv4 micro-BFD."; } leaf ipv6-dest-addr { type inet:ipv6-address; description "IPv6 address of the peer, for IPv6 micro-BFD."; } uses bfd-types:common-cfg-parms; leaf use-ipv4 { type boolean; description "Using IPv4 micro-BFD."; } leaf use-ipv6 { type boolean; description "Using IPv6 micro-BFD."; } list member-links { key "member-link"; config false; description "Micro-BFD over LAG. This represents one member link"; leaf member-link { type if:interface-ref; description "Member link on which micro-BFD is running"; } container micro-bfd-ipv4 { when "../../use-ipv4 = 'true'" { description "Needed only if IPv4 is used."; } description "Micro-BFD IPv4 session state on member link"; uses bfd-types:all-session; } container micro-bfd-ipv6 { when "../../use-ipv6 = 'true'" { description "Needed only if IPv6 is used."; } description "Micro-BFD IPv6 session state on member link"; uses bfd-types:all-session; } } } } } notification lag-notification { description "Notification for BFD over LAG session state change. " + "An implementation may rate-limit notifications, e.g. when a" + "session is continuously changing state."; uses bfd-types:notification-parms; leaf lag-name { type if:interface-ref; description "LAG interface name"; } leaf member-link { type if:interface-ref; description "Member link on which BFD is running"; } } }