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IF-CAP-STACK-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, mib-2
FROM SNMPv2-SMI -- [RFC2578]
TruthValue
FROM SNMPv2-TC -- [RFC2579]
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF -- [RFC2580]
ifStackGroup2, ifStackHigherLayer, ifStackLowerLayer
FROM IF-MIB -- [RFC2863]
ifInvStackGroup
FROM IF-INVERTED-STACK-MIB -- [RFC2864]
;
ifCapStackMIB MODULE-IDENTITY
LAST-UPDATED "200711070000Z" -- November 07, 2007
ORGANIZATION "IETF Ethernet Interfaces and Hub MIB Working Group"
CONTACT-INFO
"WG charter:
http://www.ietf.org/html.charters/OLD/hubmib-charter.html
Mailing Lists:
General Discussion: hubmib@ietf.org
To Subscribe: hubmib-request@ietf.org
In Body: subscribe your_email_address
Chair: Bert Wijnen
Postal: Alcatel-Lucent
Schagen 33
3461 GL Linschoten
Netherlands
Phone: +31-348-407-775
EMail: bwijnen@alcatel-lucent.com
Editor: Edward Beili
Postal: Actelis Networks Inc.
25 Bazel St., P.O.B. 10173
Petach-Tikva 10173
Israel
Phone: +972-3-924-3491
EMail: edward.beili@actelis.com"
DESCRIPTION
"The objects in this MIB module are used to describe
cross-connect capabilities of stacked (layered) interfaces,
complementing ifStackTable and ifInvStackTable defined in
IF-MIB and IF-INVERTED-STACK-MIB, respectively.
Copyright (C) The IETF Trust (2007). This version
of this MIB module is part of RFC 5066; see the RFC
itself for full legal notices."
REVISION "200711070000Z" -- November 07, 2007
DESCRIPTION "Initial version, published as RFC 5066."
::= { mib-2 166 }
-- Sections of the module
-- Structured as recommended by [RFC4181], see
-- Appendix D: Suggested OID Layout
ifCapStackObjects OBJECT IDENTIFIER ::= { ifCapStackMIB 1 }
ifCapStackConformance OBJECT IDENTIFIER ::= { ifCapStackMIB 2 }
-- Groups in the module
--
-- ifCapStackTable group
--
ifCapStackTable OBJECT-TYPE
SYNTAX SEQUENCE OF IfCapStackEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table, modeled after ifStackTable from IF-MIB,
contains information on the possible 'on-top-of'
relationships between the multiple sub-layers of network
interfaces (as opposed to actual relationships described in
ifStackTable). In particular, it contains information on
which sub-layers MAY possibly run 'on top of' which other
sub-layers, as determined by cross-connect capability of the
device, where each sub-layer corresponds to a conceptual row
in the ifTable. For example, when the sub-layer with ifIndex
value x can be connected to run on top of the sub-layer with
ifIndex value y, then this table contains:
ifCapStackStatus.x.y=true
The ifCapStackStatus.x.y row does not exist if it is
impossible to connect between the sub-layers x and y.
Note that for most stacked interfaces (e.g., 2BASE-TL)
there's always at least one higher-level interface (e.g., PCS
port) for each lower-level interface (e.g., PME) and at
least one lower-level interface for each higher-level
interface, that is, there is at least a single row with a
'true' status for any such existing value of x or y.
This table is read-only as it describes device capabilities."
REFERENCE
"IF-MIB, ifStackTable"
::= { ifCapStackObjects 1 }
ifCapStackEntry OBJECT-TYPE
SYNTAX IfCapStackEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information on a particular relationship between two
sub-layers, specifying that one sub-layer MAY possibly run
on 'top' of the other sub-layer. Each sub-layer corresponds
to a conceptual row in the ifTable (interface index for
lower and higher layer, respectively)."
INDEX {
ifStackHigherLayer,
ifStackLowerLayer
}
::= { ifCapStackTable 1 }
IfCapStackEntry ::= SEQUENCE {
ifCapStackStatus TruthValue
}
ifCapStackStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The status of the 'cross-connect capability' relationship
between two sub-layers. The following values can be returned:
true(1) - indicates that the sub-layer interface,
identified by the ifStackLowerLayer MAY
be connected to run 'below' the sub-layer
interface, identified by the
ifStackHigherLayer index.
false(2) - the sub-layer interfaces cannot be
connected temporarily due to
unavailability of the interface(s), e.g.,
one of the interfaces is located on an
absent pluggable module.
Note that lower-layer interface availability per higher-layer,
indicated by the value of 'true', can be constrained by
other parameters, for example, by the aggregation capacity of
a higher-layer interface or by the lower-layer interface in
question being already connected to another higher-layer
interface. In order to ensure that a particular sub-layer can
be connected to another sub-layer, all respective objects
(e.g., ifCapStackTable, ifStackTable, and efmCuPAFCapacity for
EFMCu interfaces) SHALL be inspected.
This object is read-only, unlike ifStackStatus, as it
describes a cross-connect capability."
::= { ifCapStackEntry 1 }
ifInvCapStackTable OBJECT-TYPE
SYNTAX SEQUENCE OF IfInvCapStackEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table containing information on the possible relationships
between the multiple sub-layers of network interfaces. This
table, modeled after ifInvStackTable from
IF-INVERTED-STACK-MIB, is an inverse of the ifCapStackTable
defined in this MIB module.
In particular, this table contains information on which
sub-layers MAY run 'underneath' which other sub-layers, where
each sub-layer corresponds to a conceptual row in the ifTable.
For example, when the sub-layer with ifIndex value x MAY be
connected to run underneath the sub-layer with ifIndex value
y, then this table contains:
ifInvCapStackStatus.x.y=true
This table contains exactly the same number of rows as the
ifCapStackTable, but the rows appear in a different order.
This table is read-only as it describes a cross-connect
capability."
REFERENCE
"IF-INVERTED-STACK-MIB, ifInvStackTable"
::= { ifCapStackObjects 2 }
ifInvCapStackEntry OBJECT-TYPE
SYNTAX IfInvCapStackEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information on a particular relationship between two sub-
layers, specifying that one sub-layer MAY run underneath the
other sub-layer. Each sub-layer corresponds to a conceptual
row in the ifTable."
INDEX { ifStackLowerLayer, ifStackHigherLayer }
::= { ifInvCapStackTable 1 }
IfInvCapStackEntry ::= SEQUENCE {
ifInvCapStackStatus TruthValue
}
ifInvCapStackStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The status of the possible 'cross-connect capability'
relationship between two sub-layers.
An instance of this object exists for each instance of the
ifCapStackStatus object, and vice versa. For example, if the
variable ifCapStackStatus.H.L exists, then the variable
ifInvCapStackStatus.L.H must also exist, and vice versa. In
addition, the two variables always have the same value.
The ifInvCapStackStatus object is read-only, as it describes
a cross-connect capability."
REFERENCE
"ifCapStackStatus"
::= { ifInvCapStackEntry 1 }
--
-- Conformance Statements
--
ifCapStackGroups OBJECT IDENTIFIER ::=
{ ifCapStackConformance 1 }
ifCapStackCompliances OBJECT IDENTIFIER ::=
{ ifCapStackConformance 2 }
-- Units of Conformance
ifCapStackGroup OBJECT-GROUP
OBJECTS {
ifCapStackStatus,
ifInvCapStackStatus
}
STATUS current
DESCRIPTION
"A collection of objects providing information on the
cross-connect capability of multi-layer (stacked) network
interfaces."
::= { ifCapStackGroups 1 }
-- Compliance Statements
ifCapStackCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities, which provide
information on the cross-connect capability of multi-layer
(stacked) network interfaces, with flexible cross-connect
between the sub-layers."
MODULE -- this module
MANDATORY-GROUPS {
ifCapStackGroup
}
OBJECT ifCapStackStatus
SYNTAX TruthValue { true(1) }
DESCRIPTION
"Support for the false(2) value is OPTIONAL for
implementations supporting pluggable interfaces."
OBJECT ifInvCapStackStatus
SYNTAX TruthValue { true(1) }
DESCRIPTION
"Support for the false(2) value is OPTIONAL for
implementations supporting pluggable interfaces."
MODULE IF-MIB
MANDATORY-GROUPS {
ifStackGroup2
}
MODULE IF-INVERTED-STACK-MIB
MANDATORY-GROUPS {
ifInvStackGroup
}
::= { ifCapStackCompliances 1 }
END