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module openconfig-interfaces {
yang-version "1";
// namespace
namespace "http://openconfig.net/yang/interfaces";
prefix "oc-if";
// import some basic types
import ietf-interfaces { prefix ietf-if; }
import ietf-yang-types { prefix yang; }
import openconfig-extensions { prefix oc-ext; }
// meta
organization "OpenConfig working group";
contact
"OpenConfig working group
[email protected]";
description
"Model for managing network interfaces and subinterfaces. This
module also defines convenience types / groupings for other
models to create references to interfaces:
base-interface-ref (type) - reference to a base interface
interface-ref (grouping) - container for reference to a
interface + subinterface
interface-ref-state (grouping) - container for read-only
(opstate) reference to interface + subinterface
This model reuses data items defined in the IETF YANG model for
interfaces described by RFC 7223 with an alternate structure
(particularly for operational state data) and and with
additional configuration items.";
oc-ext:openconfig-version "1.0.1";
revision "2016-04-12" {
description
"OpenConfig public release";
reference "1.0.1";
}
// typedef statements
typedef base-interface-ref {
type leafref {
path "/oc-if:interfaces/oc-if:interface/oc-if:name";
}
description
"Reusable type for by-name reference to a base interface.
This type may be used in cases where ability to reference
a subinterface is not required.";
}
typedef interface-id {
type string;
description
"User-defined identifier for an interface, generally used to
name a interface reference. The id can be arbitrary but a
useful convention is to use a combination of base interface
name and subinterface index.";
}
// grouping statements
grouping interface-ref-common {
description
"Reference leafrefs to interface / subinterface";
leaf interface {
type leafref {
path "/oc-if:interfaces/oc-if:interface/oc-if:name";
}
description
"Reference to a base interface. If a reference to a
subinterface is required, this leaf must be specified
to indicate the base interface.";
}
leaf subinterface {
type leafref {
path "/oc-if:interfaces/" +
"oc-if:interface[oc-if:name=current()/../interface]/" +
"oc-if:subinterfaces/oc-if:subinterface/oc-if:index";
}
description
"Reference to a subinterface -- this requires the base
interface to be specified using the interface leaf in
this container. If only a reference to a base interface
is requuired, this leaf should not be set.";
}
}
grouping interface-ref-state-container {
description
"Reusable opstate w/container for a reference to an
interface or subinterface";
container state {
config false;
description
"Operational state for interface-ref";
uses interface-ref-common;
}
}
grouping interface-ref {
description
"Reusable definition for a reference to an interface or
subinterface";
container interface-ref {
description
"Reference to an interface or subinterface";
container config {
description
"Configured reference to interface / subinterface";
uses interface-ref-common;
}
uses interface-ref-state-container;
}
}
grouping interface-ref-state {
description
"Reusable opstate w/container for a reference to an
interface or subinterface";
container interface-ref {
description
"Reference to an interface or subinterface";
uses interface-ref-state-container;
}
}
grouping interface-common-config {
description
"Configuration data data nodes common to physical interfaces
and subinterfaces";
leaf name {
type string;
description
"[adapted from IETF interfaces model (RFC 7223)]
The name of the interface.
A device MAY restrict the allowed values for this leaf,
possibly depending on the type of the interface.
For system-controlled interfaces, this leaf is the
device-specific name of the interface. The 'config false'
list interfaces/interface[name]/state contains the currently
existing interfaces on the device.
If a client tries to create configuration for a
system-controlled interface that is not present in the
corresponding state list, the server MAY reject
the request if the implementation does not support
pre-provisioning of interfaces or if the name refers to
an interface that can never exist in the system. A
NETCONF server MUST reply with an rpc-error with the
error-tag 'invalid-value' in this case.
The IETF model in RFC 7223 provides YANG features for the
following (i.e., pre-provisioning and arbitrary-names),
however they are omitted here:
If the device supports pre-provisioning of interface
configuration, the 'pre-provisioning' feature is
advertised.
If the device allows arbitrarily named user-controlled
interfaces, the 'arbitrary-names' feature is advertised.
When a configured user-controlled interface is created by
the system, it is instantiated with the same name in the
/interfaces/interface[name]/state list.";
reference
"RFC 7223: A YANG Data Model for Interface Management";
}
leaf description {
type string;
description
"[adapted from IETF interfaces model (RFC 7223)]
A textual description of the interface.
A server implementation MAY map this leaf to the ifAlias
MIB object. Such an implementation needs to use some
mechanism to handle the differences in size and characters
allowed between this leaf and ifAlias. The definition of
such a mechanism is outside the scope of this document.
Since ifAlias is defined to be stored in non-volatile
storage, the MIB implementation MUST map ifAlias to the
value of 'description' in the persistently stored
datastore.
Specifically, if the device supports ':startup', when
ifAlias is read the device MUST return the value of
'description' in the 'startup' datastore, and when it is
written, it MUST be written to the 'running' and 'startup'
datastores. Note that it is up to the implementation to
decide whether to modify this single leaf in 'startup' or
perform an implicit copy-config from 'running' to
'startup'.
If the device does not support ':startup', ifAlias MUST
be mapped to the 'description' leaf in the 'running'
datastore.";
reference
"RFC 2863: The Interfaces Group MIB - ifAlias";
}
leaf enabled {
type boolean;
default "true";
description
"[adapted from IETF interfaces model (RFC 7223)]
This leaf contains the configured, desired state of the
interface.
Systems that implement the IF-MIB use the value of this
leaf in the 'running' datastore to set
IF-MIB.ifAdminStatus to 'up' or 'down' after an ifEntry
has been initialized, as described in RFC 2863.
Changes in this leaf in the 'running' datastore are
reflected in ifAdminStatus, but if ifAdminStatus is
changed over SNMP, this leaf is not affected.";
reference
"RFC 2863: The Interfaces Group MIB - ifAdminStatus";
}
}
grouping interface-phys-config {
description
"Configuration data for physical interfaces";
leaf type {
type identityref {
base ietf-if:interface-type;
}
mandatory true;
description
"[adapted from IETF interfaces model (RFC 7223)]
The type of the interface.
When an interface entry is created, a server MAY
initialize the type leaf with a valid value, e.g., if it
is possible to derive the type from the name of the
interface.
If a client tries to set the type of an interface to a
value that can never be used by the system, e.g., if the
type is not supported or if the type does not match the
name of the interface, the server MUST reject the request.
A NETCONF server MUST reply with an rpc-error with the
error-tag 'invalid-value' in this case.";
reference
"RFC 2863: The Interfaces Group MIB - ifType";
}
leaf mtu {
type uint16;
description
"Set the max transmission unit size in octets
for the physical interface. If this is not set, the mtu is
set to the operational default -- e.g., 1514 bytes on an
Ethernet interface.";
}
uses interface-common-config;
}
grouping interface-phys-holdtime-config {
description
"Configuration data for interface hold-time settings --
applies to physical interfaces.";
leaf up {
type uint32;
units milliseconds;
default 0;
description
"Dampens advertisement when the interface
transitions from down to up. A zero value means dampening
is turned off, i.e., immediate notification.";
}
leaf down {
type uint32;
units milliseconds;
default 0;
description
"Dampens advertisement when the interface transitions from
up to down. A zero value means dampening is turned off,
i.e., immediate notification.";
}
}
grouping interface-phys-holdtime-state {
description
"Operational state data for interface hold-time.";
}
grouping interface-phys-holdtime-top {
description
"Top-level grouping for setting link transition
dampening on physical and other types of interfaces.";
container hold-time {
description
"Top-level container for hold-time settings to enable
dampening advertisements of interface transitions.";
container config {
description
"Configuration data for interface hold-time settings.";
uses interface-phys-holdtime-config;
}
container state {
config false;
description
"Operational state data for interface hold-time.";
uses interface-phys-holdtime-config;
uses interface-phys-holdtime-state;
}
}
}
grouping interface-common-state {
description
"Operational state data (in addition to intended configuration)
at the global level for this interface";
leaf ifindex {
type uint32;
description
"System assigned number for each interface. Corresponds to
ifIndex object in SNMP Interface MIB";
reference
"RFC 2863 - The Interfaces Group MIB";
}
leaf admin-status {
type enumeration {
enum UP {
description
"Ready to pass packets.";
}
enum DOWN {
description
"Not ready to pass packets and not in some test mode.";
}
enum TESTING {
//TODO: This is generally not supported as a configured
//admin state, though it's in the standard interfaces MIB.
//Consider removing it.
description
"In some test mode.";
}
}
//TODO:consider converting to an identity to have the
//flexibility to remove some values defined by RFC 7223 that
//are not used or not implemented consistently.
mandatory true;
description
"[adapted from IETF interfaces model (RFC 7223)]
The desired state of the interface. In RFC 7223 this leaf
has the same read semantics as ifAdminStatus. Here, it
reflects the administrative state as set by enabling or
disabling the interface.";
reference
"RFC 2863: The Interfaces Group MIB - ifAdminStatus";
}
leaf oper-status {
type enumeration {
enum UP {
value 1;
description
"Ready to pass packets.";
}
enum DOWN {
value 2;
description
"The interface does not pass any packets.";
}
enum TESTING {
value 3;
description
"In some test mode. No operational packets can
be passed.";
}
enum UNKNOWN {
value 4;
description
"Status cannot be determined for some reason.";
}
enum DORMANT {
value 5;
description
"Waiting for some external event.";
}
enum NOT_PRESENT {
value 6;
description
"Some component (typically hardware) is missing.";
}
enum LOWER_LAYER_DOWN {
value 7;
description
"Down due to state of lower-layer interface(s).";
}
}
//TODO:consider converting to an identity to have the
//flexibility to remove some values defined by RFC 7223 that
//are not used or not implemented consistently.
mandatory true;
description
"[adapted from IETF interfaces model (RFC 7223)]
The current operational state of the interface.
This leaf has the same semantics as ifOperStatus.";
reference
"RFC 2863: The Interfaces Group MIB - ifOperStatus";
}
leaf last-change {
type yang:timeticks;
description
"Date and time of the last state change of the interface
(e.g., up-to-down transition). This corresponds to the
ifLastChange object in the standard interface MIB.";
reference
"RFC 2863: The Interfaces Group MIB - ifLastChange";
}
}
grouping interface-counters-state {
description
"Operational state representing interface counters
and statistics. Some of these are adapted from RFC 7223";
//TODO: we may need to break this list of counters into those
//that would appear for physical vs. subinterface or logical
//interfaces. For now, just replicating the full stats
//grouping to both interface and subinterface.
container counters {
description
"A collection of interface-related statistics objects.";
reference
"RFC 7223 - A YANG Data Model for Interface
Management";
leaf in-octets {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
The total number of octets received on the interface,
including framing characters.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifHCInOctets";
}
leaf in-unicast-pkts {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
The number of packets, delivered by this sub-layer to a
higher (sub-)layer, that were not addressed to a
multicast or broadcast address at this sub-layer.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifHCInUcastPkts";
}
leaf in-broadcast-pkts {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
The number of packets, delivered by this sub-layer to a
higher (sub-)layer, that were addressed to a broadcast
address at this sub-layer.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB -
ifHCInBroadcastPkts";
}
leaf in-multicast-pkts {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
The number of packets, delivered by this sub-layer to a
higher (sub-)layer, that were addressed to a multicast
address at this sub-layer. For a MAC-layer protocol,
this includes both Group and Functional addresses.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB -
ifHCInMulticastPkts";
}
leaf in-discards {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
Changed the counter type to counter64.
The number of inbound packets that were chosen to be
discarded even though no errors had been detected to
prevent their being deliverable to a higher-layer
protocol. One possible reason for discarding such a
packet could be to free up buffer space.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifInDiscards";
}
leaf in-errors {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
Changed the counter type to counter64.
For packet-oriented interfaces, the number of inbound
packets that contained errors preventing them from being
deliverable to a higher-layer protocol. For character-
oriented or fixed-length interfaces, the number of
inbound transmission units that contained errors
preventing them from being deliverable to a higher-layer
protocol.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifInErrors";
}
leaf in-unknown-protos {
type yang:counter32;
description
"[adapted from IETF interfaces model (RFC 7223)]
Changed the counter type to counter64.
For packet-oriented interfaces, the number of packets
received via the interface that were discarded because
of an unknown or unsupported protocol. For
character-oriented or fixed-length interfaces that
support protocol multiplexing, the number of
transmission units received via the interface that were
discarded because of an unknown or unsupported protocol.
For any interface that does not support protocol
multiplexing, this counter is not present.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifInUnknownProtos";
}
leaf out-octets {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
Changed the counter type to counter64.
The total number of octets transmitted out of the
interface, including framing characters.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifHCOutOctets";
}
leaf out-unicast-pkts {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
The total number of packets that higher-level protocols
requested be transmitted, and that were not addressed
to a multicast or broadcast address at this sub-layer,
including those that were discarded or not sent.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifHCOutUcastPkts";
}
leaf out-broadcast-pkts {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
The total number of packets that higher-level protocols
requested be transmitted, and that were addressed to a
broadcast address at this sub-layer, including those
that were discarded or not sent.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB -
ifHCOutBroadcastPkts";
}
leaf out-multicast-pkts {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
Changed the counter type to counter64.
The total number of packets that higher-level protocols
requested be transmitted, and that were addressed to a
multicast address at this sub-layer, including those
that were discarded or not sent. For a MAC-layer
protocol, this includes both Group and Functional
addresses.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB -
ifHCOutMulticastPkts";
}
leaf out-discards {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
Changed the counter type to counter64.
The number of outbound packets that were chosen to be
discarded even though no errors had been detected to
prevent their being transmitted. One possible reason
for discarding such a packet could be to free up buffer
space.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifOutDiscards";
}
leaf out-errors {
type yang:counter64;
description
"[adapted from IETF interfaces model (RFC 7223)]
Changed the counter type to counter64.
For packet-oriented interfaces, the number of outbound
packets that could not be transmitted because of errors.
For character-oriented or fixed-length interfaces, the
number of outbound transmission units that could not be
transmitted because of errors.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
'discontinuity-time'.";
reference
"RFC 2863: The Interfaces Group MIB - ifOutErrors";
}
leaf last-clear {
type yang:date-and-time;
description
"Indicates the last time the interface counters were
cleared.";
}
}
}
// data definition statements
grouping sub-unnumbered-config {
description
"Configuration data for unnumbered subinterfaces";
leaf enabled {
type boolean;
default false;
description
"Indicates that the subinterface is unnumbered. By default
the subinterface is numbered, i.e., expected to have an
IP address configuration.";
}
}
grouping sub-unnumbered-state {
description
"Operational state data unnumbered subinterfaces";
}
grouping sub-unnumbered-top {
description
"Top-level grouping unnumbered subinterfaces";
container unnumbered {
description
"Top-level container for setting unnumbered interfaces.
Includes reference the interface that provides the
address information";
container config {
description
"Configuration data for unnumbered interface";
uses sub-unnumbered-config;
}
container state {
config false;
description
"Operational state data for unnumbered interfaces";
uses sub-unnumbered-config;
uses sub-unnumbered-state;
}
uses oc-if:interface-ref;
}
}
grouping subinterfaces-config {
description
"Configuration data for subinterfaces";
leaf index {
type uint32;
default 0;
description
"The index of the subinterface, or logical interface number.
On systems with no support for subinterfaces, or not using
subinterfaces, this value should default to 0, i.e., the
default subinterface.";
}
uses interface-common-config;
}
grouping subinterfaces-state {
description
"Operational state data for subinterfaces";
uses interface-common-state;
uses interface-counters-state;
}
grouping subinterfaces-top {
description
"Subinterface data for logical interfaces associated with a
given interface";
container subinterfaces {
description
"Enclosing container for the list of subinterfaces associated
with a physical interface";
list subinterface {
key index;
description
"The list of subinterfaces (logical interfaces) associated
with a physical interface";
leaf index {
type leafref {
path "../oc-if:config/oc-if:index";
}
description
"The index number of the subinterface -- used to address
the logical interface";
}
container config {
description
"Configurable items at the subinterface level";
uses subinterfaces-config;
}
container state {
config false;
description
"Operational state data for logical interfaces";
uses subinterfaces-config;
uses subinterfaces-state;
}
}
}
}
grouping interfaces-top {
description
"Top-level grouping for interface configuration and
operational state data";
container interfaces {
description
"Top level container for interfaces, including configuration
and state data.";
list interface {
key name;
description
"The list of named interfaces on the device.";
leaf name {
type leafref {
path "../oc-if:config/oc-if:name";
}
description
"References the configured name of the interface";
//TODO: need to consider whether this should actually
//reference the name in the state subtree, which
//presumably would be the system-assigned name, or the
//configured name. Points to the config/name now
//because of YANG 1.0 limitation that the list
//key must have the same "config" as the list, and
//also can't point to a non-config node.
}
container config {
description
"Configurable items at the global, physical interface
level";
uses interface-phys-config;
}
container state {
config false;
description
"Operational state data at the global interface level";
uses interface-phys-config;
uses interface-common-state;
uses interface-counters-state;
}
uses interface-phys-holdtime-top;
uses subinterfaces-top;
}
}
}
uses interfaces-top;
}
