SL-SONET-APS-MIB Table View

Table-centric layout grouping table, row, and column objects.

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slSonetApsConfigTable

table
.1.3.6.1.4.1.4515.1.6.5.1.1 · 1 row entry · 21 columns
Open in standard view 
This table contains objects to configure APS 
(Automatic Protection Switching) feature in a SONET 
Line. APS is the ability to configure a pair of SONET 
lines for redundancy so that the hardware will 
automatically switch the active line from working line
to the protection line or vice versa, within 50ms, 
when the active line fails.
slSonetApsConfigEntry entry .1.3.6.1.4.1.4515.1.6.5.1.1.1
An entry is created during startup if the SEEP specifies that there are two trunk ports.
The value of slSonetApsEnable determines if the APS is configured or not.
Indexes
slSonetApsWorkingIndex
Column Syntax OID
slSonetApsWorkingIndex
When a pair of APS lines is configured, one line has
to be the working line, which is the primary line,
and the other has to be the protection line, which
is the backup line. This object refers to the working line
in th…
IF-MIBInterfaceIndex
Textual Convention: IF-MIBInterfaceIndex Integer32
Type Constraints:
range: 1..2147483647
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.1
slSonetApsProtectionIndex
The protection line indicates that it will become
the active line when an APS switch occurs (APS switch
could occur because of a failure on the working line).
IF-MIBInterfaceIndexr/w
Textual Convention: IF-MIBInterfaceIndex Integer32
Type Constraints:
range: 1..2147483647
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.2
slSonetApsEnable
This object is used to enable or disable the APS feature
on the working/protection line pairs.
Enumerationr/w
Enumerated Values:
1slSonetApsDisabled
2slSonetApsEnabled
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.3
slSonetApsArchMode
This object is used to configure APS architecture mode
on the working/protection line pairs (read-write).

All of the following are supported on single slot.
oneToOne(2) is not supported across 2 slots,…
Enumerationr/w
Enumerated Values:
1onePlusOne
2oneToOne
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.4
slSonetApsActiveLineRx
This object indicates which Rx line is currently active.
It could be the working line, the protection line or
none if neither working nor protection line is active.
This object reflects the status of receive directio…
Enumeration
Enumerated Values:
1slSonetApsWorkingLine
2slSonetApsProtectionLine
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.5
slSonetApsActiveLineTx
This object indicates which Tx line is currently active.
It could be the working line, the protection line or
none if neither working nor protection line is active.
This object reflects the status of receive directio…
Enumeration
Enumerated Values:
1slSonetApsWorkingLine
2slSonetApsProtectionLine
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.6
slSonetApsWaitToRestore
This object contains interval in minutes to wait
before attempting to switch back to working line.
Not applicable if the line is configured in
non-revertive mode, i.e. protection line will
continue to be active, eve…
minutesUnsigned32r/w
Constraints:
range: 1-12
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.7
slSonetApsDirection
This object is used to configure the switching
direction which this APS line supports (read-write).

Unidirectional : APS switch only in one direction.
Bidirectional : APS switch in both ends of the lin…
Enumerationr/w
Enumerated Values:
1uniDirectional
2biDirectional
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.8
slSonetApsRevertive
This object is used to configure the APS revertive or
nonrevertive option (read-write).

revertive :
Will switch the working line back to active state after
the Wait-To-restore interval has expired a…
Enumerationr/w
Enumerated Values:
1nonrevertive
2revertive
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.9
slSonetApsDirectionOperational
This object shows the actual APS direction that is
implemented on the Near End terminal. APS direction
configured through slSonetApsDirection is negotiated with
the Far End and APS direction setting acceptable to
bot…
Enumeration
Enumerated Values:
1uniDirectional
2biDirectional
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.10
slSonetApsArchModeOperational
This object shows the actual APS architecture mode that
is implemented on the Near End terminal. APS architecture
mode configured through slSonetApsArchMode object is
negotiated with the Far End through APS channel.
A…
Enumeration
Enumerated Values:
1onePlusOne
2oneToOne
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.11
slSonetApsChanStatus
Indicates the current state of the port.

lockedOut
This bit, when applied to a working channel, indicates that
the channel is prevented from switching to the protection line.
When applied to the null chan…
Bits
Enumerated Values:
0lockedOut
1sdWorking
2sdProtecting
3sfWorking
4sfProtecting
5switched
6remoteRequest
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.12
slSonetApsChanSignalDegrades
A count of Signal Degrade conditions. This
condition occurs when the line Bit Error Rate
exceeds the currently configured threshold.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.13
slSonetApsChanSignalFailures
A count of Signal Failure conditions that have been
detected on the incoming signal. This condition occurs
when a loss of signal, loss of frame, AIS-L or a Line
bit error rate exceeding 10^-3 is detected on an
incoming …
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.14
slSonetApsChanLastSwitchover
The value of sysUpTime when this channel last completed a switch
to the protection line. If this channel has never switched to the
protection line, or this channel is the protection line, the value
0 will be returned.
SNMPv2-SMITimeTicks
Textual Convention: SNMPv2-SMITimeTicks Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.15
slSonetApsLineFailureCodeStatus
The Sonet APS line failure code status - this is the
status of failure encountered by the APS line.

slSonetApsChannelMismatch: trasmitted K1 byte and
received K2 byte do not matc…
Bits
Enumerated Values:
0slSonetApsChannelMismatch
1slSonetApsProtectionByteFail
2slSonetApsFEProtectionFailure
3slSonetApsModeMismatch
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.16
slSonetApsConfigSwitchCommand
A switch command initiates one external request for evaluation
(read-write).

(1) Clear - Clears all switch commands on the channel.

(2) Lockout Of Protection - Prevents any of the working c…
Enumerationr/w
Enumerated Values:
1clear
2lockoutOfProtection
3forcedSwitchOfWorking
4forcedSwitchOfProtection
5manualSwitchOfWorking
6manualSwitchOfProtection
7exercise
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.17
slSonetApsLineSwitchReason
The reason why APS switch happened. When the working
line on one end fails, its other end is told to do
an APS switch. The following options in the increasing
order of priority indicate what type of switch request
it …
Enumeration
Enumerated Values:
1slSonetApsOther
2slSonetApsRevertive
3slSonetApsManual
4slSonetApsSignalDegrade
5slSonetApsSignalFailure
6slSonetApsForceSwitch
7slSonetApsRemoteRequest
8slSonetApsLockOut
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.18
slSonetApsResetCounters
Setting this variable to 1 will cause the counters
on all of the SONET APS Config Table to be initialized
to zero (read-write).
Enumerationr/w
Enumerated Values:
1resetCounters
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.19
slSonetApsConfigActiveRequest
The Active Switch APS request:

slSonetApsRevertive : Switch back to working line after the
Wait-to-Restore interval is over, and failures are
cleared. It is the lowest priority.
slSonetApsManual : M…
Enumerationr/w
Enumerated Values:
1slSonetApsOther
2slSonetApsRevertive
3slSonetApsManual
4slSonetApsSignalDegrade
5slSonetApsSignalFailure
6slSonetApsForceSwitch
7slSonetApsRemoteRequest
8slSonetApsLockOut
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.20
slSonetApsConfigExerciseResult
This variable contains the result of the last exercise command.
True - means test success. False - otherwise.
SNMPv2-TCTruthValue
Textual Convention: SNMPv2-TCTruthValue Enumeration
Type Values:
1true
2false
 .1.3.6.1.4.1.4515.1.6.5.1.1.1.21