Adding OpenConfig YANG models.
Change-Id: I0a2fdd5826e80933cf4b9ae939ff3051acec02aa
diff --git a/models/openconfig/src/main/yang/policy-forwarding/openconfig-policy-forwarding.yang b/models/openconfig/src/main/yang/policy-forwarding/openconfig-policy-forwarding.yang
new file mode 100644
index 0000000..63dbf78
--- /dev/null
+++ b/models/openconfig/src/main/yang/policy-forwarding/openconfig-policy-forwarding.yang
@@ -0,0 +1,119 @@
+module openconfig-policy-forwarding {
+ yang-version "1";
+
+ namespace "http://openconfig.net/yang/policy-forwarding";
+
+ prefix "oc-pf";
+
+ import openconfig-extensions { prefix "oc-ext"; }
+
+ // Include submodules.
+ include openconfig-pf-forwarding-policies;
+ include openconfig-pf-path-groups;
+ include openconfig-pf-interfaces;
+
+ organization
+ "OpenConfig working group";
+
+ contact
+ "OpenConfig working group
+ www.openconfig.net";
+
+ description
+ "This module defines configuration and operational state data
+ relating to policy-based forwarding. Policy-based forwarding is
+ utilised when a system chooses how to forward packets (including
+ applying data-plane operations such as encapsulation or
+ decapsulation) based on policies other than destination L2 or L3
+ header. Typically, systems may implement:
+
+ - IP policy-based routing, where routing may be done based on the
+ source plus destination of an IP packet; information within the
+ L4 header; or some combination of both.
+ - Encapsulation or decapsulation based on certain policy
+ information - for example, matching particular IP destinations
+ and decapsulating GRE headers.
+ - Class-based selection of egress routes - such as class-based
+ selection of an egress MPLS path.
+
+ The policies that are defined in this model are applied to a
+ particular ingress context of a network element (e.g., interface)
+ and are defined to apply following other interface policy such as
+ QoS classification and access control lists.
+
+ This module defines:
+
+ - policy-forwarding
+ |
+ |--- policies
+ | |-- policy
+ | |-- [match criteria] How packets are defined to
+ | | match policy.
+ | |-- [forwarding-action] How packets matching should
+ | be forwarded.
+ |--- interfaces
+ | |-- interfaces
+ | | -- apply-forwarding-policy Forwarding policy to
+ | used on the interface.
+ |--- path-selection-groups
+ |-- path-selection-group A group of forwarding resources
+ that are grouped for purposes
+ of next-hop selection.
+
+ A forwarding-policy specifies the match criteria that it intends
+ to use to determine the packets that it reroutes - this may
+ consist of a number of criteria, such as DSCP. The action of the
+ policy results in a forwarding action being applied to matching
+ packets. For example, decapsulating the packet from a GRE header.
+ In order to enact the policy based on particular interfaces - the
+ forwarding-policy is applied to an interface via referencing it
+ within an 'apply-forwarding-policy' statement associated with an
+ interface.
+
+ In some cases (e.g., Class-Based Tunnel Selection) the forwarding
+ action does not resolve to a single egress action, and rather
+ normal forwarding rules are to be applied but considering a subset
+ of forwarding resources. In these cases, a path-selection-group
+ can be created, referencing the subset of forwarding paths that
+ should be used for the egress selection. In the case that a subset
+ of MPLS LSPs are eligible for, say, DSCP 46 marked packets, a
+ path-selection-group is created, referencing the subset of LSPs.
+ The forwarding action of the corresponding policy is set to
+ PATH_GROUP and references the configured group of LSPs.";
+
+ oc-ext:openconfig-version "0.2.0";
+
+ revision "2017-06-21" {
+ description
+ "Amend policy forwarding model based on ACL changes.";
+ reference "0.2.0";
+ }
+
+ revision "2017-02-28" {
+ description
+ "Initial public release of policy forwarding.";
+ reference "0.1.0";
+ }
+
+ revision "2016-11-08" {
+ description
+ "Initial revision.";
+ reference "0.0.1";
+ }
+
+
+ grouping policy-forwarding-top {
+ description
+ "Top-level grouping for Policy Forwarding";
+
+ container policy-forwarding {
+ description
+ "Configuration and operational state relating to policy-forwarding within
+ a network instance.";
+
+ uses pf-forwarding-policy-structural;
+ uses pf-interfaces-structural;
+ uses pf-path-groups-structural;
+ }
+ }
+}