module hc2vpp-ietf-mpls { namespace "urn:ietf:params:xml:ns:yang:ietf-mpls"; prefix "mpls"; /* TODO: changed to modified version of ietf-routing that we use Set back to ietf-routing after HC2VPP-253 is resolved. */ import hc2vpp-ietf-routing { prefix "rt"; } import ietf-interfaces { prefix "if"; } import ietf-routing-types { prefix "rt-types"; } organization "IETF MPLS Working Group"; contact "WG Web: WG List: WG Chair: Loa Andersson WG Chair: Ross Callon WG Chair: George Swallow Editor: Tarek Saad Editor: Kamran Raza Editor: Rakesh Gandhi Editor: Xufeng Liu Editor: Vishnu Pavan Beeram Editor: Himanshu Shah Editor: Igor Bryskin Editor: Xia Chen Editor: Raqib Jones Editor: Bin Wen "; description "This YANG module defines the essential components for the management of the MPLS subsystem."; revision "2017-07-02" { description "Latest revision: - Addressed MPLS-RT review comments"; reference "RFC 3031: A YANG Data Model for base MPLS"; } /* Identities */ /* added "-identity" to resolve class naming conflicts bug in mdsal reported here: https://jira.opendaylight.org/browse/MDSAL-332 TODO(HC2VPP-298): remove "-identity" postfix when resolved */ identity mpls { base rt:address-family-identity; description "This identity represents the MPLS address family."; } identity label-block-alloc-mode { description "Base identity label-block allocation mode"; } identity label-block-alloc-mode-manager { base label-block-alloc-mode; description "Label block allocation on reserved block is managed by label manager"; } identity label-block-alloc-mode-application { base label-block-alloc-mode; description "Label block allocation on reserved block is managed by application"; } typedef nhlfe-role { type enumeration { enum PRIMARY { description "Next-hop acts as primary traffic carrying"; } enum BACKUP { description "Next-hop acts as backup"; } enum PRIMARY_AND_BACKUP { description "Next-hop acts as primary and backup simultaneously"; } } description "The next-hop role"; } grouping nhlfe-simple-contents { description "MPLS simple NHLFE contents"; list remote-labels { key "index"; description "Remote label list"; leaf index { type uint8 { range "0..255"; } description "Index of the label. Index 0 indicates top of the label stack"; } leaf label { type rt-types:mpls-label; description "The outgoing MPLS labels to impose"; } } } grouping nhlfe-contents { description "MPLS NHLFE contents"; leaf index { type string; description "A user-specified identifier utilised to uniquely reference the next-hop entry in the next-hop list. The value of this index has no semantic meaning other than for referencing the entry."; } leaf backup-index { type string; description "A user-specified identifier utilised to uniquely reference the backup next-hop entry in the NHLFE list. The value of this index has no semantic meaning other than for referencing the entry."; } leaf loadshare { type uint16; description "This value is used to compute a loadshare to perform un-equal load balancing when multiple outgoing next-hop(s) are specified. A share is computed as a ratio of this number to the total under all next-hops(s)."; } leaf role { type nhlfe-role; description "NHLFE role"; } uses nhlfe-simple-contents; } grouping interface-mpls_config { description "MPLS interface contents grouping"; leaf enabled { type boolean; description "'true' if mpls encapsulation is enabled on the interface. 'false' if mpls encapsulation is enabled on the interface."; } leaf mtu { type uint32; description "MPLS Maximum Transmission Unit (MTU)"; } } grouping interfaces-mpls { description "List of MPLS interfaces"; list interface { key "name"; description "List of MPLS interfaces"; leaf name { type if:interface-ref; description "The name of a configured MPLS interface"; } container config { description "Holds intended configuration"; uses interface-mpls_config; } container state { config false; description "Holds inuse configuration"; uses interface-mpls_config; } } } grouping label-block_config { description "Label-block configuration items"; leaf index { type string; description "A user-specified identifier utilised to uniquely reference the next-hop entry in the next-hop list. The value of this index has no semantic meaning other than for referencing the entry."; } leaf start-label { type rt-types:mpls-label; description "Label-block start"; } leaf end-label { type rt-types:mpls-label; description "Label-block end"; } leaf block-allocation-mode { type identityref { base label-block-alloc-mode; } description "Label-block allocation mode"; } } grouping label-block_state { description "Label-block state items"; leaf free-labels-count { when "../block-allocation-mode = 'label-block-alloc-mode-manager'"; type uint32; description "Label-block free labels count"; } leaf inuse-labels-count { when "../block-allocation-mode = 'label-block-alloc-mode-manager'"; type uint32; description "Label-block inuse labels count"; } } grouping globals_config { description "MPLS global configuration leafs grouping"; leaf ttl-propagate { type boolean; default 'true'; description "Propagate TTL between IP and MPLS"; } } grouping globals { description "MPLS global configuration grouping"; container config { description "Holds intended configuration"; uses globals_config; } container state { config false; description "Holds inuse configuration"; uses globals_config; } } grouping label-blocks { description "Label-block allocation grouping"; container label-blocks { description "Label-block allocation container"; list label-block { must "start-label >= end-label" { error-message "start-label can not be less than end-label"; } key index; unique "start-label end-label"; leaf index { type leafref { path "../config/index"; } description "Label-block index"; } leaf start-label { type leafref { path "../config/start-label"; } description "Label-block start label reference"; } leaf end-label { type leafref { path "../config/end-label"; } description "Label-block end label reference"; } description "List of MPLS label-blocks"; container config { description "Holds intended configuration"; uses label-block_config; } container state { config false; description "Holds inuse configuration"; uses label-block_config; uses label-block_state; } } } } augment "/rt:routing" { description "MPLS augmentation."; container mpls { description "MPLS container, to be used as an augmentation target node other MPLS sub-features config, e.g. MPLS static LSP, MPLS LDP LSPs, and Trafic Engineering MPLS LSP Tunnels, etc."; uses globals; uses label-blocks; uses interfaces-mpls; } } /* State data */ augment "/rt:routing-state/rt:ribs/rt:rib/rt:routes/rt:route" { description "This leaf augments an IPv4 unicast route."; leaf local-label { type rt-types:mpls-label; description "MPLS local label."; } } augment "/rt:routing-state/rt:ribs/rt:rib/rt:routes/rt:route/" + "rt:next-hop/rt:next-hop-options/rt:simple-next-hop" { description "Augment 'simple-next-hop' case in IPv4 unicast routes."; uses nhlfe-simple-contents; } augment "/rt:routing-state/rt:ribs/rt:rib/rt:routes/rt:route/" + "rt:next-hop/rt:next-hop-options/rt:next-hop-list/" + "rt:next-hop-list/rt:next-hop" { description "This leaf augments the 'next-hop-list' case of IPv4 unicast routes."; uses nhlfe-contents; } /* TODO(HC2VPP-298): action augmentation does not work: https://jira.opendaylight.org/browse/MDSAL-300 augment "/rt:routing-state/rt:ribs/rt:rib/rt:active-route/rt:input" { description "This augment adds the input parameter of the 'active-route' action."; uses nhlfe-contents; } augment "/rt:routing-state/rt:ribs/rt:rib/rt:active-route/" + "rt:output/rt:route" { description "This augment adds the destination prefix to the reply of the 'active-route' action."; uses nhlfe-contents; } */ }