RFC1382 - SNMP MIB Extension for the X.25 Packet Layer

Network Working Group D. Throop, Editor
Request for Comments: 1382 Data General Corporation
November 1992
SNMP MIB Extension for the X.25 Packet Layer
Status of this Memo
This RFCspecifies an IAB standards track protocol for the Internet
community, and requests discussion and suggestions for improvements.
Please refer to the current edition of the "IAB Official Protocol
Standards" for the standardization state and status of this protocol.
Distribution of this memo is unlimited.
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in TCP/IP-based internets.
In particular, it defines objects for managing the Packet Layer of
X.25. The objects defined here, along with the objects in the "SNMP
MIB Extension for LAPB" [9] and the "Definitions of Managed Objects
for RS-232-like Hardware Devices" [8], combine to allow management of
an X.25 protocol stack.
Table of Contents
1. The Network Management Framework ....................... 2
2. Objects ................................................ 2
2.1 Format of Definitions ................................. 3
3. Overview ............................................... 3
3.1 Informal Overview ..................................... 3
3.2 Textual Conventions ................................... 4
3.3 StrUCture of MIB ...................................... 4
3.4 Tables ................................................ 5
3.5 Table Usage ........................................... 6
3.6 Conformance ........................................... 6
4. Object Definitions ..................................... 7
5. Appendix: Revision History ............................. 62
July 30 1992 ........................................... 62
June 26 1992 ........................................... 62
June 1992 .............................................. 63
April 1992 ............................................. 63
February 1992 .......................................... 65
October 1991 ........................................... 65
June 1991 .............................................. 66
April 1991 ............................................. 66
6. Acknowledgements ....................................... 66
7. References ............................................. 67
8. Security Considerations ................................ 68
9. Author"s Address ....................................... 69
1. The Network Management Framework
The Internet-standard Network Management Framework consists of three
components. These components give the rules for defining objects,
the definitions of objects, and the protocol for manipulating
objects.
The network management framework structures objects in an abstract
information tree. The branches of the tree name objects and the
leaves of the tree contain the values manipulated to effect
management. This tree is called the Management Information Base or
MIB. The concepts of this tree are given in STD 16/RFC1155, "The
Structure of Management Information" or SMI [1]. The SMI defines the
trunk of the tree and the types of objects used when defining the
leaves. STD 16/RFC1212, "Towards Concise MIB Definitions" [4],
defines a more concise description mechanism that preserves all the
principals of the SMI.
The core MIB definitions for the Internet suite of protocols can be
found in RFC1156 [2] "Management Information Base for Network
Management of TCP/IP-based internets". STD 17/RFC1213 [5] defines
MIB-II, an evolution of MIB-I with changes to incorporate
implementation eXPerience and new operational requirements.
STD 15/RFC1157 [3] defines the SNMP protocol itself. The protocol
defines how to manipulate the objects in a remote MIB.
The tree structure of the MIB allows new objects to be defined for
the purpose of experimentation and evaluation.
2. Objects
The definition of an object in the MIB requires an object name and
type. Object names and types are defined using the subset of
Abstract Syntax Notation One (ASN.1) [6] defined in the SMI [1].
Objects are named using ASN.1 object identifiers, administratively
assigned names, to specify object types. The object name, together
with an optional object instance, uniquely identifies a specific
instance of an object. For human convenience, we often use a textual
string, termed the OBJECT DESCRIPTOR, to also refer to objects.
Objects also have a syntax that defines the abstract data structure
corresponding to that object type. The ASN.1 language [6] provides
the primitives used for this purpose. The SMI [1] purposely
restricts the ASN.1 constructs which may be used for simplicity and
ease of implementation. The encoding of an object type simply
describes how to represent an object using ASN.1 encoding rules [7],
for purposes of dealing with the SNMP protocol.
2.1. Format of Definitions
Section 4 contains the specification of all object types defined in
this MIB module. The object types are defined using the conventions
defined in the SMI, as amended by the extensions specified in
"Towards Concise MIB Definitions" [4].
3. Overview
3.1. Informal Overview
This section describes how the objects defined below relate with
other MIBs. This section is only informational to help understand
how the pieces fit together.
The objects defined below are used in conjunction with MIB-II and
other MIBs such as the LAPB MIB [9]. A system with a complete X.25
stack running over a synchronous line will have at least two
interfaces in the ifTable defined in MIB-II. There will be an
interface for LAPB and another interface for the packet layer of
X.25. There will also be objects defined in the RS-232-like MIB for
the physical sync line.
Each software interface identifies the layer below it used to send
and receive packets. The X.25 MIB object, defined below,
x25OperDataLinkId, specifies an instance of lapbAdmnIndex for the
LAPB interface under that X.25. The LAPB object, lapbOperPortId,
identifies an instance of the rs232PortIndex for the the Sync line
used by LAPB.
For X.25 running over LAPB over Ethernet, the lapbOperPortId would
identify the instance of ifIndex for the Ethernet interface.
Each X.25 subnetwork will have separate entries in the ifTable. Thus
a system with two X.25 lines would have two ifTable entries for the
two X.25 packet layers and two other entries for the two LAPB
interfaces. Each X.25 Packet Layer MIB would identify the instance of
the LAPB MIB for the interface below it. Each LAPB MIB would identify
the Sync line below it. The system would also have two entries in the
rs232PortTable and rs232SyncPortTable for the two physical lines.
Since the ifTable as defined in MIB-II is device independent, it
doesn"t have anything specific for any type of interface. The
objects below define the X.25 packet layer specific information for
an interface of type X.25. Different X.25 interfaces can also be
differentiated by matching the values of ifIndex with x25AdmnIndex.
3.2. Textual Conventions
This MIB introduces a new data type as a textual convention for use
with X.25. This textual convention enhances the readability of the
specification and can ease comparison with other specifications if
appropriate. It should be noted that the introduction of such
textual conventions has no effect on either the syntax nor the
semantics of any managed objects. These conventions are merely an
artifact of the explanatory method used. Objects defined in terms of
one of these methods are always encoded by means of the rules that
define the primitive type. Hence, no changes to the SMI or the SNMP
are necessary to accommodate these textual conventions which are
adopted merely for the convenience of readers and writers in pursuit
of the elusive goal of clear, concise, and unambiguous MIB documents.
This MIB introduces the data type of:
X121Address
3.3. Structure of MIB
Instances of the objects defined below represent attributes of an
X.25 Packet Layer interface. At present these interfaces are
identified by an ifType object in the Internet-standard MIB-II [5]
of:
ddn-x25(4), and
rfc887-x25(5).
For these interfaces, the value of the ifSpecific variable in the
MIB-II [5] has the OBJECT IDENTIFIER value:
x25 OBJECT IDENTIFIER ::= { transmission 5 }
The objects defined below are similar to those defined in a draft ISO
document for X.25 management [11]. Some object definitions also
reference the ISO specification for X.25 [10] to specify the section
that will give the reader additional information about the object.
Access to those documents maybe useful (but isn"t essential) to
understand the names and semantics of some objects. The similarity
of these objects with the ISO objects minimizes the instrumentation
required by those systems that support both OSI and TCP/IP management
protocols.
Since the objects defined here are extensions to the Internet
Standard MIB [2] and thus also an extension of the second version,
MIB-II [5], the objects defined here explicitly do not duplicate
objects defined in existing standards. In some instances
clarification of how to apply those objects has been given.
The relationship between an X.25 Packet Layer interface and an
interface in the context of the Internet-standard MIB [5] is one-to-
one. As such, the value of an ifIndex object instance can be directly
used to identify corresponding instances of the objects defined
below.
3.4. Tables
The objects below form several tables. These tables are:
x25AdmnTable
x25OperTable
x25StatTable
x25ChannelTable
x25CircuitTable
x25ClearedCircuitTable
x25CallParmTable
The x25AdmnTable defines objects for the parameters of an X.25
interface which the administrator can read and set. These objects
are used at interface initialization time to start the interface.
Once the interface has started, changes to the objects in the
Administration table may not take affect until the interface is re-
initialized.
The x25OperTable defines objects that report the current parameters
used by a running interface. These objects are read-only.
The x25StatTable defines objects that report operational statistics
for an X.25 interface. These are read-only counters of events that
occurred at the interface.
The x25ChannelTable defines objects to allow the administrator to
manage the division of channel numbers.
The x25CircuitTable defines objects that return information about
existing X.25 circuits. These entries result from calls placed or
answered by the PLE or from PVCs.
The x25ClearedCircuitTable contains objects for recording the
termination information from circuits that cleared abnormally.
The x25CallParmTable defines the call parameters used to call other
systems. This table contains call parameter entries which are
referenced by other tables. For example, the x25AdmnTable has one
object that identifies the entry in the table for the default PLE
parameters. The x25CircuitTable has one object that identifies the
entry in the x25CallParmTable for the parameters in use by that
circuit. Other MIBs may also reference entries to identify call
parameters to use to make X.25 calls.
3.5. Table Usage
Different tables provide different functions. The administrator sets
the starting X.25 parameters in the x25AdmnTable for the X.25 PLE;
these objects include a reference to the x25CallParmTable entry to
identify the default call parameters for the PLE. Once all the
parameters are set, the administrator initializes the interface. As
part of initializing the interface, the operating parameters are
copied into the interface from the x25AdmnTable; these parameters are
viewable by getting the objects in the x25OperTable. (The interface
maybe started by setting the value of ifAdminStatus to up.) If any
PVCs are configured, their parameters can be set in the the
x25CircuitTable before initializing the interface; this should be
done in conjunction with configuring higher layer entities to use the
PVCs via the MIBs for those entities.
Once the PLE completes initialization, it makes additional entries in
the x25circuitTable for calls placed or answered. When a circuit is
cleared, the status of the entry for the circuit is set to closed
and, if the clear is abnormal, an entry will also be made in the
x25ClearedCircuitTable. An entry in the x25CircuitTable with a
status of closed maybe deleted by the agent at its convenience. A
closed entry will always be reused at the time the PLE re-allocates
the channel number of the entry for another call. The call
parameters used for a circuit can be found by looking in the
x25CircuitTable and following the x25CircuitCallParamId pointer to
the entry in the x25CallParmTable that contains the parameters.
There are no mechanisms in the X.25 MIB for telling the PLE to place
an X.25 call. Such mechanisms belong in the MIBs for the higher layer
entities that use the X.25 circuits.
3.6. Conformance
All the objects defined here are mandatory. To claim conformance with
this MIB an implementation must support all objects. However some
objects pertain to features that are optional. There are values
defined for those objects that indicate the implementation does not
support the optional feature. The agent for such an implementation
must support reading the object and return the value that indicates
the optional feature isn"t supported and reject set requests to
change the object.
Some optional features have more than one object that pertain to it
(window rotation has a timer, a count, and a counter for timer
runouts). In such case, any object which indicates the optional
feature isn"t supported is sufficient to indicate the feature isn"t
supported and the values of the other objects relative to that
feature are undefined.
4. Object Definitions
RFC1382-MIB DEFINITIONS ::= BEGIN
IMPORTS
Counter, Gauge, TimeTicks
FROM RFC1155-SMI
OBJECT-TYPE
FROM RFC-1212
DisplayString, transmission
FROM RFC1213-MIB
TRAP-TYPE
FROM RFC-1215
EntryStatus
FROM RFC1271-MIB
PositiveInteger,
IfIndexType
FROM RFC1381-MIB;
x25 OBJECT IDENTIFIER ::= { transmission 5 }
-- Support of the X25 suBTree and all subtrees under it
-- is mandatory for all agents of system that implement X.25.
X121Address ::= OCTET STRING (SIZE(0..17))
-- 0 to 17 bytes in length containing the ASCII
-- characters [0-9], each octet contains one digit
-- of the address.
-- ###########################################################
-- X.25 Administration Table
-- ###########################################################
x25AdmnTable OBJECT-TYPE
SYNTAX SEQUENCE OF X25AdmnEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"This table contains the administratively
set configuration parameters for an X.25
Packet Level Entity (PLE).
Most of the objects in this table have
corresponding objects in the x25OperTable.
This table contains the values as last set
by the administrator. The x25OperTable
contains the values actually in use by an
X.25 PLE.
Changing an administrative value may or may
not change a current operating value. The
operating value may not change until the
interface is restarted. Some
implementations may change the values
immediately upon changing the administrative
table. All implementations are required to
load the values from the administrative
table when initializing a PLE."
::= { x25 1 }
x25AdmnEntry OBJECT-TYPE
SYNTAX X25AdmnEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entries of x25AdmnTable."
INDEX { x25AdmnIndex }
::= { x25AdmnTable 1 }
X25AdmnEntry ::= SEQUENCE {
x25AdmnIndex
IfIndexType,
x25AdmnInterfaceMode
INTEGER,
x25AdmnMaxActiveCircuits
INTEGER,
x25AdmnPacketSequencing
INTEGER,
x25AdmnRestartTimer
PositiveInteger,
x25AdmnCallTimer
PositiveInteger,
x25AdmnResetTimer
PositiveInteger,
x25AdmnClearTimer
PositiveInteger,
x25AdmnWindowTimer
PositiveInteger,
x25AdmnDataRxmtTimer
PositiveInteger,
x25AdmnInterruptTimer
PositiveInteger,
x25AdmnRejectTimer
PositiveInteger,
x25AdmnRegistrationRequestTimer
PositiveInteger,
x25AdmnMinimumRecallTimer
PositiveInteger,
x25AdmnRestartCount
INTEGER,
x25AdmnResetCount
INTEGER,
x25AdmnClearCount
INTEGER,
x25AdmnDataRxmtCount
INTEGER,
x25AdmnRejectCount
INTEGER,
x25AdmnRegistrationRequestCount
INTEGER,
x25AdmnNumberPVCs
INTEGER,
x25AdmnDefCallParamId
OBJECT IDENTIFIER,
x25AdmnLocalAddress
X121Address,
x25AdmnProtocolVersionSupported
OBJECT IDENTIFIER
}
x25AdmnIndex OBJECT-TYPE
SYNTAX IfIndexType
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The ifIndex value for the X.25 Interface."
::= { x25AdmnEntry 1 }
x25AdmnInterfaceMode OBJECT-TYPE
SYNTAX INTEGER {
dte (1),
dce (2),
dxe (3)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Identifies DCE/DTE mode in which the
interface operates. A value of dxe
indicates the mode will be determined by XID
negotiation."
REFERENCE "10733 5.9 interfaceMode"
::= { x25AdmnEntry 2 }
x25AdmnMaxActiveCircuits OBJECT-TYPE
SYNTAX INTEGER (0..4096)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The maximum number of circuits this PLE can
support; including PVCs."
REFERENCE "10733 5.9 maxActiveCircuits;
See ISO 8208, Section 3.7"
::= { x25AdmnEntry 3 }
x25AdmnPacketSequencing OBJECT-TYPE
SYNTAX INTEGER {
modulo8 (1),
modulo128 (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The modulus of the packet sequence number
space."
REFERENCE "10733 extendedPacketSequencing;
See ISO 8208 Section 7.1.1"
::= { x25AdmnEntry 4 }
x25AdmnRestartTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T20 restart timer in milliseconds."
REFERENCE "10733 5.9 restartTime
See ISO 8208 Section 4.1, table 26"
::= { x25AdmnEntry 5 }
x25AdmnCallTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T21 Call timer in milliseconds."
REFERENCE "10733 callTime;
See ISO 8208 Section 5.2.1, table 26"
::= { x25AdmnEntry 6 }
x25AdmnResetTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T22 Reset timer in milliseconds."
REFERENCE "10733 resetTime;
See ISO 8208 Section 8.1, table 26"
::= { x25AdmnEntry 7 }
x25AdmnClearTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T23 Clear timer in milliseconds."
REFERENCE "10733 clearTime;
See ISO 8208 Section 5.5.1, table 26"
::= { x25AdmnEntry 8 }
x25AdmnWindowTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T24 window status transmission timer in
milliseconds. A value of 2147483647
indicates no window timer in use."
REFERENCE "10733 5.10.1 windowTime (opt);
See ISO 8208 Section 11.2.2, table 26"
::= { x25AdmnEntry 9 }
x25AdmnDataRxmtTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T25 data retransmission timer in
milliseconds. A value of 2147483647
indicates no data retransmission timer in
use."
REFERENCE "10733 5.10.1 dataRetransmissionTime (opt);
See ISO 8208 Section 11.2.1, table 26"
::= { x25AdmnEntry 10 }
x25AdmnInterruptTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T26 interrupt timer in milliseconds. A
value of 2147483647 indicates no interrupt
timer in use."
REFERENCE "10733 interruptTime;
See ISO 8208 Section 6.8.1, table 26"
::= { x25AdmnEntry 11 }
x25AdmnRejectTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T27 Reject retransmission timer in
milliseconds. A value of 2147483647
indicates no reject timer in use."
REFERENCE "10733 5.10.1 dataRejectTime (opt);
See ISO 8208 Section 13.4.1, table 26"
::= { x25AdmnEntry 12 }
x25AdmnRegistrationRequestTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The T28 registration timer in milliseconds.
A value of 2147483647 indicates no
registration timer in use."
REFERENCE "10733 5.8.1 registrationRequestTime (opt)
See ISO 8208 Section 13.1.1.1, table 26"
::= { x25AdmnEntry 13 }
x25AdmnMinimumRecallTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Minimum time interval between unsuccessful
call attempts in milliseconds."
REFERENCE "10733 5.9 minimum RecallTimer"
::= { x25AdmnEntry 14 }
x25AdmnRestartCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The R20 restart retransmission count."
REFERENCE "10733 5.9 restartCount;
See ISO 8208 Section 4.1, table 27"
::= { x25AdmnEntry 15 }
x25AdmnResetCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The r22 Reset retransmission count."
REFERENCE "10733 resetCount;
See section ISO 8208 8.1, table 27"
::= { x25AdmnEntry 16 }
x25AdmnClearCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The r23 Clear retransmission count."
REFERENCE "10733 clearCount;
See ISO 8208 Section 5.5.1, table 27"
::= { x25AdmnEntry 17 }
x25AdmnDataRxmtCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The R25 Data retransmission count. This
value is irrelevant if the
x25AdmnDataRxmtTimer indicates no timer in
use."
REFERENCE "10733 5.10.1 dataRetransmissionCount (opt)
See ISO 8208 Section 11.2.1, table 27"
::= { x25AdmnEntry 18 }
x25AdmnRejectCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The R27 reject retransmission count. This
value is irrelevant if the
x25AdmnRejectTimer indicates no timer in
use."
REFERENCE "10733 5.10.1 dataRejectCount (opt)"
::= { x25AdmnEntry 19 }
x25AdmnRegistrationRequestCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The R28 Registration retransmission Count.
This value is irrelevant if the
x25AdmnRegistrationRequestTimer indicates no
timer in use."
REFERENCE "10733 5.8.1 registrationRequestCount (opt);
See ISO 8208 Section 13.1.1.1, table 27"
::= { x25AdmnEntry 20 }
x25AdmnNumberPVCs OBJECT-TYPE
SYNTAX INTEGER (0..4096)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The number of PVC configured for this PLE.
The PVCs use channel numbers from 1 to this
number."
::= { x25AdmnEntry 21 }
x25AdmnDefCallParamId OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This identifies the instance of the
x25CallParmIndex for the entry in the
x25CallParmTable which contains the default
call parameters for this PLE."
::= { x25AdmnEntry 22 }
x25AdmnLocalAddress OBJECT-TYPE
SYNTAX X121Address
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The local address for this PLE subnetwork.
A zero length address maybe returned by PLEs
that only support PVCs."
REFERENCE "10733 5.9 localDTEAddress"
::= { x25AdmnEntry 23 }
x25AdmnProtocolVersionSupported OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Identifies the version of the X.25 protocol
this interface should support. Object
identifiers for common versions are defined
below in the x25ProtocolVersion subtree."
REFERENCE "10733 5.9 protocolVersionSupported"
::= { x25AdmnEntry 24 }
-- ###########################################################
-- X.25 Operational Table
-- ###########################################################
x25OperTable OBJECT-TYPE
SYNTAX SEQUENCE OF X25OperEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The operation parameters in use by the X.25
PLE."
::= { x25 2 }
x25OperEntry OBJECT-TYPE
SYNTAX X25OperEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entries of x25OperTable."
INDEX { x25OperIndex }
::= { x25OperTable 1 }
X25OperEntry ::= SEQUENCE {
x25OperIndex
IfIndexType,
x25OperInterfaceMode
INTEGER,
x25OperMaxActiveCircuits
INTEGER,
x25OperPacketSequencing
INTEGER,
x25OperRestartTimer
PositiveInteger,
x25OperCallTimer
PositiveInteger,
x25OperResetTimer
PositiveInteger,
x25OperClearTimer
PositiveInteger,
x25OperWindowTimer
PositiveInteger,
x25OperDataRxmtTimer
PositiveInteger,
x25OperInterruptTimer
PositiveInteger,
x25OperRejectTimer
PositiveInteger,
x25OperRegistrationRequestTimer
PositiveInteger,
x25OperMinimumRecallTimer
PositiveInteger,
x25OperRestartCount
INTEGER,
x25OperResetCount
INTEGER,
x25OperClearCount
INTEGER,
x25OperDataRxmtCount
INTEGER,
x25OperRejectCount
INTEGER,
x25OperRegistrationRequestCount
INTEGER,
x25OperNumberPVCs
INTEGER,
x25OperDefCallParamId
OBJECT IDENTIFIER,
x25OperLocalAddress
X121Address,
x25OperDataLinkId
OBJECT IDENTIFIER,
x25OperProtocolVersionSupported
OBJECT IDENTIFIER
}
x25OperIndex OBJECT-TYPE
SYNTAX IfIndexType
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The ifIndex value for the X.25 interface."
::= { x25OperEntry 1 }
x25OperInterfaceMode OBJECT-TYPE
SYNTAX INTEGER {
dte (1),
dce (2),
dxe (3)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Identifies DCE/DTE mode in which the
interface operates. A value of dxe
indicates the role will be determined by XID
negotiation at the Link Layer and that
negotiation has not yet taken place."
REFERENCE "10733 5.9 interfaceMode"
::= { x25OperEntry 2 }
x25OperMaxActiveCircuits OBJECT-TYPE
SYNTAX INTEGER (0..4096)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Maximum number of circuits this PLE can
support."
REFERENCE "10733 5.9 maxActiveCircuits
See ISO 8208, Section 3.7"
::= { x25OperEntry 3 }
x25OperPacketSequencing OBJECT-TYPE
SYNTAX INTEGER {
modulo8 (1),
modulo128 (2)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The modulus of the packet sequence number
space."
REFERENCE "10733 extendedPacketSequencing;
See ISO 8208 Section 7.1.1"
::= { x25OperEntry 4 }
x25OperRestartTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T20 restart timer in milliseconds."
REFERENCE "10733 5.9 restartTime;
See ISO 8208 Section 4.1, table 26"
::= { x25OperEntry 5 }
x25OperCallTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T21 Call timer in milliseconds."
REFERENCE "10733 callTime;
See ISO 8208 Section 5.2.1, table 26"
::= { x25OperEntry 6 }
x25OperResetTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T22 Reset timer in milliseconds."
REFERENCE "10733 resetTime;
See ISO 8208 Section 8.1, table 26"
::= { x25OperEntry 7 }
x25OperClearTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T23 Clear timer in milliseconds."
REFERENCE "10733 clearTime;
See ISO 8208 Section 5.5.1, table 26"
::= { x25OperEntry 8 }
x25OperWindowTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T24 window status transmission timer
milliseconds. A value of 2147483647
indicates no window timer in use."
REFERENCE "10733 5.10.1 windowTime (opt);
See ISO 8208 Section 11.2.2, table 26"
::= { x25OperEntry 9 }
x25OperDataRxmtTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T25 Data Retransmission timer in
milliseconds. A value of 2147483647
indicates no data retransmission timer in
use."
REFERENCE "10733 5.10.1 dataRetransmissionTime (opt);
See ISO 8208 Section 11.2.1, table 26"
::= { x25OperEntry 10 }
x25OperInterruptTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T26 Interrupt timer in milliseconds. A
value of 2147483647 indicates interrupts are
not being used."
REFERENCE "10733 interruptTime;
See ISO 8208 Section 6.8.1, table 26"
::= { x25OperEntry 11 }
x25OperRejectTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T27 Reject retransmission timer in
milliseconds. A value of 2147483647
indicates no reject timer in use."
REFERENCE "10733 5.10.1 dataRejectTime (opt);
See ISO 8208 Section 13.4.1, table 26"
::= { x25OperEntry 12 }
x25OperRegistrationRequestTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The T28 registration timer in milliseconds.
A value of 2147483647 indicates no
registration timer in use."
REFERENCE "10733 5.8.1 registrationRequestTime (opt);
See ISO 8208 Section 13.1.1.1, table 26"
::= { x25OperEntry 13 }
x25OperMinimumRecallTimer OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Minimum time interval between unsuccessful
call attempts in milliseconds."
REFERENCE "10733 5.9 minimum RecallTimer"
::= { x25OperEntry 14 }
x25OperRestartCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The R20 restart retransmission count."
REFERENCE "10733 5.9 restartCount
See ISO 8208 Section 4.1, table 27"
::= { x25OperEntry 15 }
x25OperResetCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The r22 Reset retransmission count."
REFERENCE "10733 resetCount;
See section ISO 8208 8.1, table 27"
::= { x25OperEntry 16 }
x25OperClearCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The r23 Clear retransmission count."
REFERENCE "10733 clearCount;
See ISO 8208 Section 5.5.1, table 27"
::= { x25OperEntry 17 }
x25OperDataRxmtCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The R25 Data retransmission count. This
value is undefined if the
x25OperDataRxmtTimer indicates no timer in
use."
REFERENCE "10733 5.10.1 dataRetransmissionCount (opt);
See ISO 8208 Section 11.2.1, table 27"
::= { x25OperEntry 18 }
x25OperRejectCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The R27 reject retransmission count. This
value is undefined if the x25OperRejectTimer
indicates no timer in use."
REFERENCE "10733 5.10.1 dataRejectCount (opt)"
::= { x25OperEntry 19 }
x25OperRegistrationRequestCount OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The R28 Registration retransmission Count.
This value is undefined if the
x25OperREgistrationRequestTimer indicates no
timer in use."
REFERENCE "10733 5.8.1 registrationRequestCount (opt);
See ISO 8208 Section 13.1.1.1, table 27"
::= { x25OperEntry 20 }
x25OperNumberPVCs OBJECT-TYPE
SYNTAX INTEGER (0..4096)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of PVC configured for this PLE.
The PVCs use channel numbers from 1 to this
number."
::= { x25OperEntry 21 }
x25OperDefCallParamId OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This identifies the instance of the
x25CallParmIndex for the entry in the
x25CallParmTable that contains the default
call parameters for this PLE."
::= { x25OperEntry 22 }
x25OperLocalAddress OBJECT-TYPE
SYNTAX X121Address
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The local address for this PLE subnetwork.
A zero length address maybe returned by PLEs
that only support PVCs."
REFERENCE "10733 5.9 localDTEAddress"
::= { x25OperEntry 23 }
x25OperDataLinkId OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This identifies the instance of the index
object in the first table of the most device
specific MIB for the interface used by this
PLE."
::= { x25OperEntry 24 }
x25OperProtocolVersionSupported OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Identifies the version of the X.25 protocol
this interface supports. Object identifiers
for common versions are defined below in the
x25ProtocolVersion subtree."
REFERENCE "10733 5.9 protocolVersionSupported"
::= { x25OperEntry 25 }
-- MIB-II also provides:
-- ifDescr:
-- On an X.25 interface this must include sufficient
-- information to enable the system"s administrator
-- to determine the appropriate configuration
-- information on a system having multiple X.25
-- subnetworks.
-- ifType: ddn-x25 or rfc877-x25
-- an interface of type ddn-x25 will use an algorithm to
-- translate between X.121 address and IP addresses.
-- An interface of type rfc877-x25 will use a
-- configuration table to translate between X.121
-- addresses and IP addresses.
-- ifMtu: the maximum PDU a higher layer can pass to X.25 or
-- receive from X.25
-- ifSpeed:
-- This will be the value of the local clock for this line.
-- A value of zero indicates external clocking.
-- ifAdminStatus:
-- ifOperStatus
-- ifLastChange
-- ###########################################################
-- X.25 Statistics Table
-- ###########################################################
x25StatTable OBJECT-TYPE
SYNTAX SEQUENCE OF X25StatEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Statistics information about this X.25
PLE."
::= { x25 3 }
x25StatEntry OBJECT-TYPE
SYNTAX X25StatEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entries of the x25StatTable."
INDEX { x25StatIndex }
::= { x25StatTable 1 }
X25StatEntry ::= SEQUENCE {
x25StatIndex
IfIndexType,
x25StatInCalls
Counter,
x25StatInCallRefusals
Counter,
x25StatInProviderInitiatedClears
Counter,
x25StatInRemotelyInitiatedResets
Counter,
x25StatInProviderInitiatedResets
Counter,
x25StatInRestarts
Counter,
x25StatInDataPackets
Counter,
x25StatInAccusedOfProtocolErrors
Counter,
x25StatInInterrupts
Counter,
x25StatOutCallAttempts
Counter,
x25StatOutCallFailures
Counter,
x25StatOutInterrupts
Counter,
x25StatOutDataPackets
Counter,
x25StatOutgoingCircuits
Gauge,
x25StatIncomingCircuits
Gauge,
x25StatTwowayCircuits
Gauge,
x25StatRestartTimeouts
Counter,
x25StatCallTimeouts
Counter,
x25StatResetTimeouts
Counter,
x25StatClearTimeouts
Counter,
x25StatDataRxmtTimeouts
Counter,
x25StatInterruptTimeouts
Counter,
x25StatRetryCountExceededs
Counter,
x25StatClearCountExceededs
Counter
}
x25StatIndex OBJECT-TYPE
SYNTAX IfIndexType
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The ifIndex value for the X.25 interface."
::= { x25StatEntry 1 }
x25StatInCalls OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of incoming calls received."
::= { x25StatEntry 2 }
x25StatInCallRefusals OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of incoming calls refused. This
includes calls refused by the PLE and by
higher layers. This also includes calls
cleared because of restricted fast select."
::= { x25StatEntry 3 }
x25StatInProviderInitiatedClears OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of clear requests with a cause
code other than DTE initiated."
REFERENCE "10733 providerInitiatedDisconnect"
::= { x25StatEntry 4 }
x25StatInRemotelyInitiatedResets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of reset requests received with
cause code DTE initiated."
REFERENCE "10733 remotelyInitiatedResets"
::= { x25StatEntry 5 }
x25StatInProviderInitiatedResets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of reset requests received with
cause code other than DTE initiated."
REFERENCE "10733 ProviderInitiatedResets"
::= { x25StatEntry 6 }
x25StatInRestarts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of remotely initiated (including
provider initiated) restarts experienced by
the PLE excluding the restart associated
with bringing up the PLE interface. This
only counts restarts received when the PLE
already has an established connection with
the remove PLE."
REFERENCE "10733 5.9 remotelyInitiatedRestarts"
::= { x25StatEntry 7 }
x25StatInDataPackets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of data packets received."
REFERENCE "10733 5.9 dataPacketsReceived."
::= { x25StatEntry 8 }
x25StatInAccusedOfProtocolErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of packets received containing a
procedure error cause code. These include
clear, reset, restart, or diagnostic
packets."
REFERENCE "CD 10733 5.9 accusedOfProtocolError"
::= { x25StatEntry 9 }
x25StatInInterrupts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of interrupt packets received by
the PLE or over the PVC/VC."
REFERENCE "10733 interruptPacketsReceived"
::= { x25StatEntry 10 }
x25StatOutCallAttempts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of calls attempted."
REFERENCE "10733 5.9 callAttempts"
::= { x25StatEntry 11 }
x25StatOutCallFailures OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of call attempts which failed.
This includes calls that were cleared
because of restrictive fast select."
::= { x25StatEntry 12 }
x25StatOutInterrupts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of interrupt packets send by the
PLE or over the PVC/VC."
REFERENCE "10733 InterruptPacketsSent"
::= { x25StatEntry 13 }
x25StatOutDataPackets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of data packets sent by this
PLE."
REFERENCE "10733 dataPacketSent"
::= { x25StatEntry 14 }
x25StatOutgoingCircuits OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of active outgoing circuits.
This includes call requests sent but not yet
confirmed. This does not count PVCs."
::= { x25StatEntry 15 }
x25StatIncomingCircuits OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of active Incoming Circuits.
This includes call indications received but
not yet acknowledged. This does not count
PVCs."
::= { x25StatEntry 16 }
x25StatTwowayCircuits OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of active two-way Circuits.
This includes call requests sent but not yet
confirmed. This does not count PVCs."
::= { x25StatEntry 17 }
x25StatRestartTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T20 restart timer
expired."
REFERENCE "10733 5.9 restartTimeouts"
::= { x25StatEntry 18 }
x25StatCallTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T21 call timer
expired."
REFERENCE "10733 5.9 callTimeouts"
::= { x25StatEntry 19 }
x25StatResetTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T22 reset timer
expired."
REFERENCE "10733 5.9 resetTimeouts"
::= { x25StatEntry 20 }
x25StatClearTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T23 clear timer
expired."
REFERENCE "10733 5.9 clearTimeouts"
::= { x25StatEntry 21 }
x25StatDataRxmtTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T25 data timer
expired."
REFERENCE "10733 5.9 dataRetransmissionsTimerExpiries"
::= { x25StatEntry 22 }
x25StatInterruptTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T26 interrupt timer
expired."
REFERENCE "10733 5.9 interruptTimerExpires"
::= { x25StatEntry 23 }
x25StatRetryCountExceededs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times a retry counter was
exhausted."
REFERENCE "10733 5.9 retryCountsExceeded"
::= { x25StatEntry 24 }
x25StatClearCountExceededs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the R23 clear count was
exceeded."
REFERENCE "10733 5.9 clearCountsExceeded"
::= { x25StatEntry 25 }
-- MIB-II also contains:
-- ifInOctets: Number of data octets delivered to upper
-- layer entities.
-- ifInUcastPkts: Number of packets with a clear M-bit
-- delivered to higher layer entities.
-- ifDiscards: Number of packets dropped for lack of buffering
-- ifInErrors: Number of packets received containing errors
-- REFERENCE ProtocolErrorsDetectedLocally
-- ifInUnknownProtos: Number of packets with unknown circuit
-- identifier.
-- ifOutOctets: Number of data octets delivered by
-- X.25 to upper layers.
-- ifOutUcastPkts: Number of packets with a clear M-bit
-- received from higher layer entities.
-- ###########################################################
-- X.25 Channel Table
-- ###########################################################
x25ChannelTable OBJECT-TYPE
SYNTAX SEQUENCE OF X25ChannelEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"These objects contain information about the
channel number configuration in an X.25 PLE.
These values are the configured values.
changes in these values after the interfaces
has started may not be reflected in the
operating PLE."
REFERENCE "See ISO 8208, Section 3.7"
::= { x25 4 }
x25ChannelEntry OBJECT-TYPE
SYNTAX X25ChannelEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entries of x25ChannelTable."
REFERENCE "This provides the information available
in 10733 logicalChannelAssignments."
INDEX { x25ChannelIndex }
::= { x25ChannelTable 1 }
X25ChannelEntry ::= SEQUENCE {
x25ChannelIndex
IfIndexType,
x25ChannelLIC
INTEGER,
x25ChannelHIC
INTEGER,
x25ChannelLTC
INTEGER,
x25ChannelHTC
INTEGER,
x25ChannelLOC
INTEGER,
x25ChannelHOC
INTEGER
}
x25ChannelIndex OBJECT-TYPE
SYNTAX IfIndexType
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The ifIndex value for the X.25 Interface."
::= { x25ChannelEntry 1 }
x25ChannelLIC OBJECT-TYPE
SYNTAX INTEGER (0..4095)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Lowest Incoming channel."
::= { x25ChannelEntry 2 }
x25ChannelHIC OBJECT-TYPE
SYNTAX INTEGER (0..4095)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Highest Incoming channel. A value of zero
indicates no channels in this range."
::= { x25ChannelEntry 3 }
x25ChannelLTC OBJECT-TYPE
SYNTAX INTEGER (0..4095)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Lowest Two-way channel."
::= { x25ChannelEntry 4 }
x25ChannelHTC OBJECT-TYPE
SYNTAX INTEGER (0..4095)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Highest Two-way channel. A value of zero
indicates no channels in this range."
::= { x25ChannelEntry 5 }
x25ChannelLOC OBJECT-TYPE
SYNTAX INTEGER (0..4095)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Lowest outgoing channel."
::= { x25ChannelEntry 6 }
x25ChannelHOC OBJECT-TYPE
SYNTAX INTEGER (0..4095)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Highest outgoing channel. A value of zero
indicates no channels in this range."
::= { x25ChannelEntry 7 }
-- ###########################################################
-- X25 Per Circuits Information Table
-- ###########################################################
x25CircuitTable OBJECT-TYPE
SYNTAX SEQUENCE OF X25CircuitEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"These objects contain general information
about a specific circuit of an X.25 PLE."
::= { x25 5 }
x25CircuitEntry OBJECT-TYPE
SYNTAX X25CircuitEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entries of x25CircuitTable."
INDEX { x25CircuitIndex,
x25CircuitChannel }
::= { x25CircuitTable 1 }
X25CircuitEntry ::= SEQUENCE {
x25CircuitIndex
IfIndexType,
x25CircuitChannel
INTEGER,
x25CircuitStatus
INTEGER,
x25CircuitEstablishTime
TimeTicks,
x25CircuitDirection
INTEGER,
x25CircuitInOctets
Counter,
x25CircuitInPdus
Counter,
x25CircuitInRemotelyInitiatedResets
Counter,
x25CircuitInProviderInitiatedResets
Counter,
x25CircuitInInterrupts
Counter,
x25CircuitOutOctets
Counter,
x25CircuitOutPdus
Counter,
x25CircuitOutInterrupts
Counter,
x25CircuitDataRetransmissionTimeouts
Counter,
x25CircuitResetTimeouts
Counter,
x25CircuitInterruptTimeouts
Counter,
x25CircuitCallParamId
OBJECT IDENTIFIER,
x25CircuitCalledDteAddress
X121Address,
x25CircuitCallingDteAddress
X121Address,
x25CircuitOriginallyCalledAddress
X121Address,
x25CircuitDescr
DisplayString
}
x25CircuitIndex OBJECT-TYPE
SYNTAX IfIndexType
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The ifIndex value for the X.25 Interface."
::= { x25CircuitEntry 1 }
x25CircuitChannel OBJECT-TYPE
SYNTAX INTEGER (0..4095)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The channel number for this circuit."
::= { x25CircuitEntry 2 }
x25CircuitStatus OBJECT-TYPE
SYNTAX INTEGER { -- state table states
invalid (1),
closed (2), -- (p1)
calling (3), -- (p2,p3,p5)
open (4), -- (p4)
clearing (5), -- (p6,p7)
pvc (6),
pvcResetting (7),
startClear (8), -- Close cmd
startPvcResetting (9), -- Reset cmd
other (10)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This object reports the current status of
the circuit.
An existing instance of this object can only
be set to startClear, startPvcResetting, or
invalid. An instance with the value calling
or open can only be set to startClear and
that action will start clearing the circuit.
An instance with the value PVC can only be
set to startPvcResetting or invalid and that
action resets the PVC or deletes the circuit
respectively. The values startClear or
startPvcResetting will never be returned by
an agent. An attempt to set the status of
an existing instance to a value other than
one of these values will result in an error.
A non-existing instance can be set to PVC to
create a PVC if the implementation supports
dynamic creation of PVCs. Some
implementations may only allow creation and
deletion of PVCs if the interface is down.
Since the instance identifier will supply
the PLE index and the channel number,
setting this object alone supplies
sufficient information to create the
instance. All the DEFVAL clauses for the
other objects of this table are appropriate
for creating a PVC; PLEs creating entries
for placed or accepted calls will use values
appropriate for the call rather than the
value of the DEFVAL clause. Two managers
trying to create the same PVC can determine
from the return code which manager succeeded
and which failed (the failing manager fails
because it can not set a value of PVC for an
existing object).
An entry in the closed or invalid state may
be deleted or reused at the agent"s
convence. If the entry is kept in the
closed state, the values of the parameters
associated with the entry must be correct.
Closed implies the values in the circuit
table are correct.
The value of invalid indicates the other
values in the table are invalid. Many
agents may never return a value of invalid
because they dynamically allocate and free
unused table entries. An agent for a
statically configured systems can return
invalid to indicate the entry has not yet
been used so the counters contain no
information."
REFERENCE "See ISO 8208,
table 33 for (p<n>) state table"
::= { x25CircuitEntry 3 }
x25CircuitEstablishTime OBJECT-TYPE
SYNTAX TimeTicks
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The value of sysUpTime when the channel was
associated with this circuit. For outgoing
SVCs, this is the time the first call packet
was sent. For incoming SVCs, this is the
time the call indication was received. For
PVCs this is the time the PVC was able to
pass data to a higher layer entity without
loss of data."
::= { x25CircuitEntry 4 }
x25CircuitDirection OBJECT-TYPE
SYNTAX INTEGER {
incoming (1),
outgoing (2),
pvc (3)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The direction of the call that established
this circuit."
REFERENCE "10733 direction"
DEFVAL { pvc }
::= { x25CircuitEntry 5 }
-- X25 Circuit data flow statistics
x25CircuitInOctets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of octets of user data delivered
to upper layer."
REFERENCE "5.11 octetsReceivedCounter"
::= { x25CircuitEntry 6 }
x25CircuitInPdus OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of PDUs received for this
circuit."
REFERENCE "10733 5.11 dataPacketsReceived"
::= { x25CircuitEntry 7 }
x25CircuitInRemotelyInitiatedResets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Resets received for this
circuit with cause code of DTE initiated."
REFERENCE "10733 remotelyInitiatedResets"
::= { x25CircuitEntry 8 }
x25CircuitInProviderInitiatedResets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Resets received for this
circuit with cause code other than DTE
initiated."
REFERENCE "10733 ProviderInitiatedResets"
::= { x25CircuitEntry 9 }
x25CircuitInInterrupts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of interrupt packets received
for this circuit."
REFERENCE "10733 interruptPacketsReceived"
::= { x25CircuitEntry 10 }
x25CircuitOutOctets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of octets of user data sent for
this circuit."
REFERENCE "10733 5.11 octetsSentCounter"
::= { x25CircuitEntry 11 }
x25CircuitOutPdus OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of PDUs sent for this circuit."
REFERENCE "10733 5.11 dataPacketsSent"
::= { x25CircuitEntry 12 }
x25CircuitOutInterrupts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of interrupt packets sent on
this circuit."
REFERENCE "10733 interruptPacketsSent"
::= { x25CircuitEntry 13 }
-- X25 circuit timer statistics
x25CircuitDataRetransmissionTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T25 data
retransmission timer expired for this
circuit."
REFERENCE "10733 5.11 dataRetransmissionTimerExpiries"
::= { x25CircuitEntry 14 }
x25CircuitResetTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T22 reset timer
expired for this circuit."
REFERENCE "10733 5.11 resetTimeouts"
::= { x25CircuitEntry 15 }
x25CircuitInterruptTimeouts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of times the T26 Interrupt timer
expired for this circuit."
REFERENCE "10733 interruptTimerExpiries"
::= { x25CircuitEntry 16 }
x25CircuitCallParamId OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This identifies the instance of the
x25CallParmIndex for the entry in the
x25CallParmTable which contains the call
parameters in use with this circuit. The
entry referenced must contain the values
that are currently in use by the circuit
rather than proposed values. A value of
NULL indicates the circuit is a PVC or is
using all the default parameters."
DEFVAL { {0 0} }
::= { x25CircuitEntry 17 }
x25CircuitCalledDteAddress OBJECT-TYPE
SYNTAX X121Address
ACCESS read-write
STATUS mandatory
DESCRIPTION
"For incoming calls, this is the called
address from the call indication packet.
For outgoing calls, this is the called
address from the call confirmation packet.
This will be zero length for PVCs."
REFERENCE "10733 calledDTEAddress"
DEFVAL { ""h }
::= { x25CircuitEntry 18 }
x25CircuitCallingDteAddress OBJECT-TYPE
SYNTAX X121Address
ACCESS read-write
STATUS mandatory
DESCRIPTION
"For incoming calls, this is the calling
address from the call indication packet.
For outgoing calls, this is the calling
address from the call confirmation packet.
This will be zero length for PVCs."
REFERENCE "10733 callingDTEAddress"
DEFVAL { ""h }
::= { x25CircuitEntry 19 }
x25CircuitOriginallyCalledAddress OBJECT-TYPE
SYNTAX X121Address
ACCESS read-write
STATUS mandatory
DESCRIPTION
"For incoming calls, this is the address in
the call Redirection or Call Deflection
Notification facility if the call was
deflected or redirected, otherwise it will
be called address from the call indication
packet. For outgoing calls, this is the
address from the call request packet. This
will be zero length for PVCs."
REFERENCE "10733 originallyCalledAddress"
DEFVAL { ""h }
::= { x25CircuitEntry 20 }
x25CircuitDescr OBJECT-TYPE
SYNTAX DisplayString (SIZE (0..255))
ACCESS read-write
STATUS mandatory
DESCRIPTION
"A descriptive string associated with this
circuit. This provides a place for the
agent to supply any descriptive information
it knows about the use or owner of the
circuit. The agent may return the process
identifier and user name for the process
using the circuit. Alternative the agent
may return the name of the configuration
entry that caused a bridge to establish the
circuit. A zero length value indicates the
agent doesn"t have any additional
information."
DEFVAL { ""h }
::= { x25CircuitEntry 21 }
-- ###########################################################
-- The Cleared Circuit Table
-- ###########################################################
x25ClearedCircuitEntriesRequested OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The requested number of entries for the
agent to keep in the x25ClearedCircuit
table."
::= { x25 6 }
x25ClearedCircuitEntriesGranted OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The actual number of entries the agent will
keep in the x25ClearedCircuit Table."
::= { x25 7 }
x25ClearedCircuitTable OBJECT-TYPE
SYNTAX SEQUENCE OF X25ClearedCircuitEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"A table of entries about closed circuits.
Entries must be made in this table whenever
circuits are closed and the close request or
close indication packet contains a clearing
cause other than DTE Originated or a
Diagnostic code field other than Higher
Layer Initiated disconnection-normal. An
agent may optionally make entries for normal
closes (to record closing facilities or
other information).
Agents will delete the oldest entry in the
table when adding a new entry would exceed
agent resources. Agents are required to
keep the last entry put in the table and may
keep more entries. The object
x25OperClearEntriesGranted returns the
maximum number of entries kept in the
table."
REFERENCE "See ISO 8208 Section 12.2.3.1.1
and 12.2.3.1.2"
::= { x25 8 }
x25ClearedCircuitEntry OBJECT-TYPE
SYNTAX X25ClearedCircuitEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Information about a cleared circuit."
INDEX { x25ClearedCircuitIndex }
::= { x25ClearedCircuitTable 1 }
X25ClearedCircuitEntry ::= SEQUENCE {
x25ClearedCircuitIndex
PositiveInteger,
x25ClearedCircuitPleIndex
IfIndexType,
x25ClearedCircuitTimeEstablished
TimeTicks,
x25ClearedCircuitTimeCleared
TimeTicks,
x25ClearedCircuitChannel
INTEGER,
x25ClearedCircuitClearingCause
INTEGER,
x25ClearedCircuitDiagnosticCode
INTEGER,
x25ClearedCircuitInPdus
Counter,
x25ClearedCircuitOutPdus
Counter,
x25ClearedCircuitCalledAddress
X121Address,
x25ClearedCircuitCallingAddress
X121Address,
x25ClearedCircuitClearFacilities
OCTET STRING
}
x25ClearedCircuitIndex OBJECT-TYPE
SYNTAX PositiveInteger
ACCESS read-only
STATUS mandatory
DESCRIPTION
"An index that uniquely distinguishes one
entry in the clearedCircuitTable from
another. This index will start at
2147483647 and will decrease by one for each
new entry added to the table. Upon reaching
one, the index will reset to 2147483647.
Because the index starts at 2147483647 and
decreases, a manager may do a getnext on
entry zero and obtain the most recent entry.
When the index has the value of 1, the next
entry will delete all entries in the table
and that entry will be numbered 2147483647."
::= { x25ClearedCircuitEntry 1