module ietf-interface-protection {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-interface-protection";
prefix ifprot;
import ietf-interfaces {
prefix if;
reference "RFC8343";
}
organization
"Internet Engineering Task Force (IETF) CCAMP WG";
contact
"WG List: <mailto:ccamp@ietf.org>
ID-draft editors:
Jonas Ahlberg (jonas.ahlberg@ericsson.com);
Min Ye (amy.yemin@huawei.com);
Xi Li (Xi.Li@neclab.eu);
Daniela Spreafico (daniela.spreafico@nokia.com)
Marko Vaupotic (Marko.Vaupotic@aviatnet.com)";
description
"This is a module for the entities in
a generic interface protection mechanism.
Copyright (c) 2018 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.
Copyright (c) 2018 IETF Trust and the persons identified as
authors of the code. All rights reserved.";
revision 2018-10-03 {
description "Initial revision.";
reference "RFC XXXX: A YANG Data Model for Microwave Radio Link";
}
/*
* Protection architecture type identities
*/
identity protection-architecture-type {
description
"protection architecture type";
reference "ITU-T G.808.1";
}
identity one-plus-one-type {
base protection-architecture-type;
description
"1+1, One interface protects
another one interface.";
reference "ITU-T G.808.1";
}
identity one-to-n-type {
base protection-architecture-type;
description
"1:N, One interface protects
n other interfaces.";
reference "ITU-T G.808.1";
}
/*
* Protection states identities
*/
identity protection-states {
description
"Identities describing the status of the protection,
in a group of interfaces configured in
a protection mode.";
}
identity unprotected {
base protection-states;
description "Not protected";
}
identity protected {
base protection-states;
description "Protected";
}
identity unable-to-protect {
base protection-states;
description "Unable to protect";
}
/*
* Protection Groups
*/
grouping protection-groups {
description
"Configuration of protected groups (1+1) of interfaces
providing protection for each other. More than one protected
group per higher-layer-interface is allowed.";
list protection-group {
key "name";
description
"List of protected groups of interfaces
in a higher-layer-interface.";
leaf name {
type string;
description
"Name used for identification of the protection group";
}
leaf protection-architecture-type {
type identityref {
base protection-architecture-type;
}
default "ifprot:one-plus-one-type";
description
"The type of protection architecture used, e.g. one
interface protecting one or several other interfaces.";
reference "ITU-T G.808.1";
}
leaf-list members {
type if:interface-ref;
min-elements 2;
description
"Association to a group of interfaces configured for
protection and used by a higher-layer-interface.";
}
leaf operation-type {
type enumeration {
enum "non-revertive" {
description
"In non revertive operation, the traffic does not
return to the working interface if the switch requests
are terminated.";
reference "ITU-T G.808.1";
}
enum "revertive" {
description
"In revertive operation, the traffic always
returns to (or remains on) the working interface
if the switch requests are terminated.";
reference "ITU-T G.808.1";
}
}
default "non-revertive";
description
"The type of protection operation, i.e. revertive
or non-revertive operation.";
}
leaf-list working-entity {
when "../operation-type = 'revertive'";
type if:interface-ref;
min-elements 1;
description
"The interfaces over which the traffic normally should
be transported over when there is no need to use the
protecting interface.";
}
leaf revertive-wait-to-restore {
when "../operation-type = 'revertive'";
type uint16;
units "seconds";
default "0";
description
"The time to wait before switching back to the working
interface if operation-type is revertive.";
reference "ITU-T G.808.1";
}
leaf hold-off-timer {
type uint16;
units "milliseconds";
default "0";
description
"Time interval after the detection of a fault and its
confirmation as a condition requiring the protection
switching procedure.";
reference "ITU-T G.808.1";
}
leaf status {
type identityref {
base protection-states;
}
config false;
description
"Status of the protection, in a group of interfaces
configured in a protection mode.";
reference "ITU-T G.808.1";
}
action manual-switch-working {
description
"A switch action initiated by an operator command.
It switches normal traffic signal to the working
transport entity.";
reference "ITU-T G.808.1";
}
action manual-switch-protection {
description
"A switch action initiated by an operator command.
It switches normal traffic signal to the protection
transport entity.";
reference "ITU-T G.808.1";
}
action forced-switch {
description
"A switch action initiated by an operator command.
It switches normal traffic signal to the protection
transport entity and forces it to remain on that
entity even when criteria for switching back to
the original entity are fulfilled.";
reference "ITU-T G.808.1";
}
action lockout-of-protection {
description
"A switch action temporarily disables access to the
protection transport entity for all signals.";
reference "ITU-T G.808.1";
}
action freeze {
description
"A switch action temporarily prevents any switch action
to be taken and, as such, freezes the current state.
Until the freeze is cleared, additional near-end external
commands are rejected and fault condition changes and
received APS messages are ignored..";
reference "ITU-T G.808.1";
}
action exercise {
description
"A switch action to test if the APS communication is
operating correctly. It is lower priority than any 'real'
switch request..";
reference "ITU-T G.808.1";
}
action clear {
description
"An action clears all switch commands.";
reference "ITU-T G.808.1";
}
}
}
}