EZ5 MIB Catalog

IF-CAP-STACK-MIB

2007-11-07

Download IF-CAP-STACK-MIB.txt Open IF-CAP-STACK-MIB.txt in a new tab

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.

TABLES (2)

Tables (2)

NameOID
ifCapStackTable1.3.6.1.2.1.166.1.1
ifInvCapStackTable1.3.6.1.2.1.166.1.2

END OF TOC

Table details

ifCapStackTable

1.3.6.1.2.1.166.1.1

Index: ifStackHigherLayer · ifStackLowerLayer

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.

from IF-MIB

ifStackHigherLayer

InterfaceIndexOrZeroThis textual convention is an extension of the InterfaceIndex convention. The latter defines a greater than zero value used to identify an interface or interface sub-layer in the managed system. This extension permits the additional value of zero. the value zero is object-specific and must therefore be defined as part of the description of any object which uses this syntax. Examples of the usage of zero might include situations where interface was unknown, or when none or all interfaces need to be referenced. (0..2147483647) · Integer32 · hint d

The value of ifIndex corresponding to the higher sub-layer of the relationship, i.e., the sub-layer which runs on 'top' of the sub-layer identified by the corresponding instance of ifStackLowerLayer. If there is no higher sub-layer (below the internetwork layer), then this object has the value 0.

ifStackLowerLayer

InterfaceIndexOrZeroThis textual convention is an extension of the InterfaceIndex convention. The latter defines a greater than zero value used to identify an interface or interface sub-layer in the managed system. This extension permits the additional value of zero. the value zero is object-specific and must therefore be defined as part of the description of any object which uses this syntax. Examples of the usage of zero might include situations where interface was unknown, or when none or all interfaces need to be referenced. (0..2147483647) · Integer32 · hint d

The value of ifIndex corresponding to the lower sub-layer of the relationship, i.e., the sub-layer which runs 'below' the sub-layer identified by the corresponding instance of ifStackHigherLayer. If there is no lower sub-layer, then this object has the value 0.

ifCapStackStatus

1.3.6.1.2.1.166.1.1.1.1

TruthValue1 = true2 = falseRepresents a boolean value. · Integer32

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.

ifInvCapStackTable

1.3.6.1.2.1.166.1.2

Index: ifStackLowerLayer · ifStackHigherLayer

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.

from IF-MIB

ifStackLowerLayer

InterfaceIndexOrZeroThis textual convention is an extension of the InterfaceIndex convention. The latter defines a greater than zero value used to identify an interface or interface sub-layer in the managed system. This extension permits the additional value of zero. the value zero is object-specific and must therefore be defined as part of the description of any object which uses this syntax. Examples of the usage of zero might include situations where interface was unknown, or when none or all interfaces need to be referenced. (0..2147483647) · Integer32 · hint d

The value of ifIndex corresponding to the lower sub-layer of the relationship, i.e., the sub-layer which runs 'below' the sub-layer identified by the corresponding instance of ifStackHigherLayer. If there is no lower sub-layer, then this object has the value 0.

ifStackHigherLayer

InterfaceIndexOrZeroThis textual convention is an extension of the InterfaceIndex convention. The latter defines a greater than zero value used to identify an interface or interface sub-layer in the managed system. This extension permits the additional value of zero. the value zero is object-specific and must therefore be defined as part of the description of any object which uses this syntax. Examples of the usage of zero might include situations where interface was unknown, or when none or all interfaces need to be referenced. (0..2147483647) · Integer32 · hint d

The value of ifIndex corresponding to the higher sub-layer of the relationship, i.e., the sub-layer which runs on 'top' of the sub-layer identified by the corresponding instance of ifStackLowerLayer. If there is no higher sub-layer (below the internetwork layer), then this object has the value 0.

ifInvCapStackStatus

1.3.6.1.2.1.166.1.2.1.1

TruthValue1 = true2 = falseRepresents a boolean value. · Integer32

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.

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