module ietf-segment-routing-common {
namespace "urn:ietf:params:xml:ns:yang:ietf-segment-routing-common";
prefix sr-cmn;
import ietf-inet-types {
prefix inet;
}
organization
"IETF SPRING - SPRING Working Group";
contact
"WG Web:
WG List:
Editor: Stephane Litkowski
Editor: Yingzhen Qu
Author: Acee Lindem
Author: Pushpasis Sarkar
Author: Jeff Tantsura
";
description
"The YANG module defines a collection of types and groupings for
Segment routing.
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
(http://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
reference "RFC XXXX";
revision 2017-07-01 {
description
"
*Conform to RFC6087BIS Appendix C
";
reference "RFC XXXX: YANG Data Model for Segment Routing.";
}
revision 2017-03-10 {
description
"
* Add support of SRLB
";
reference "RFC XXXX: YANG Data Model for Segment Routing.";
}
revision 2016-10-28 {
description
"
* Add support of MSD (Maximum SID Depth)
* Update contact info
";
reference "RFC XXXX: YANG Data Model for Segment Routing.";
}
revision 2016-10-24 {
description
"Initial";
reference "RFC XXXX: YANG Data Model for Segment Routing.";
}
feature sid-last-hop-behavior {
description
"Configurable last hop behavior.";
}
identity segment-routing-transport {
description
"Base identity for segment routing transport.";
}
identity segment-routing-transport-mpls {
base segment-routing-transport;
description
"This identity represents MPLS transport for segment
routing.";
}
identity segment-routing-transport-ipv6 {
base segment-routing-transport;
description
"This identity represents IPv6 transport for segment
routing.";
}
identity prefix-sid-algorithm {
description
"Base identity for prefix-sid algorithm.";
}
identity prefix-sid-algorithm-shortest-path {
base prefix-sid-algorithm;
description
"The default behavior of prefix-sid algorithm.";
}
identity prefix-sid-algorithm-strict-spf {
base prefix-sid-algorithm;
description
"This algorithm mandates that the packet is forwared
according to ECMP-aware SPF algorithm.";
}
grouping srlr {
description
"Grouping for SR Label Range configuration.";
leaf lower-bound {
type uint32;
description
"Lower value in the block.";
}
leaf upper-bound {
type uint32;
description
"Upper value in the block.";
}
}
grouping srgb-cfg {
description
"Grouping for SR Label Range configuration.";
list srgb {
key "lower-bound upper-bound";
ordered-by user;
description
"List of global blocks to be
advertised.";
uses srlr;
}
}
grouping srlb-cfg {
description
"Grouping for SR Local Block range configuration.";
list srlb {
key "lower-bound upper-bound";
ordered-by user;
description
"List of SRLBs.";
uses srlr;
}
}
grouping sid-value-type {
description
"Defines how the SID value is expressed.";
leaf value-type {
type enumeration {
enum "index" {
description
"The value will be
interpreted as an index.";
}
enum "absolute" {
description
"The value will become
interpreted as an absolute
value.";
}
}
default "index";
description
"This leaf defines how value
must be interpreted.";
}
}
grouping ipv4-sid-cfg {
description
"This grouping defines cfg of prefix SID.";
leaf prefix {
type inet:ipv4-prefix;
description
"connected prefix sid.";
}
uses prefix-sid-attributes;
}
grouping ipv6-sid-cfg {
description
"This grouping defines cfg of prefix SID.";
leaf prefix {
type inet:ipv6-prefix;
description
"connected prefix sid.";
}
uses prefix-sid-attributes;
}
grouping last-hop-behavior {
description
"Defines last hop behavior";
leaf last-hop-behavior {
if-feature "sid-last-hop-behavior";
type enumeration {
enum "explicit-null" {
description
"Use explicit-null for the SID.";
}
enum "no-php" {
description
"Do no use PHP for the SID.";
}
enum "php" {
description
"Use PHP for the SID.";
}
}
description
"Configure last hop behavior.";
}
}
grouping node-capabilities {
description
"Containing SR node capabilities.";
container node-capabilities {
config false;
description
"Shows the SR capability of the node.";
list transport-planes {
key "transport-plane";
description
"List of supported transport planes.";
leaf transport-plane {
type identityref {
base segment-routing-transport;
}
description
"Transport plane supported";
}
}
leaf readable-label-stack-depth {
type uint8;
description
"Number of MPLS labels that
can be read in the stack.";
}
}
}
grouping prefix-sid-attributes {
description
"Containing SR attributes for a prefix.";
uses sid-value-type;
leaf start-sid {
type uint32;
mandatory true;
description
"Value associated with
prefix. The value must
be interpreted in the
context of value-type.";
}
leaf range {
type uint32;
description
"Describes how many SIDs could be
allocated.";
}
leaf algorithm {
type identityref {
base prefix-sid-algorithm;
}
description
"Prefix-sid algorithm.";
}
}
}