SL-OPT-APS-MIB
AI MIB Summary
The SL-OPT-APS-MIB module provides SNMP-based management and monitoring of Optical Automatic Protection Switching (APS) states, protection group statuses, and switch events on optical transport network equipment. It enables the tracking of active/standby interface roles, protection failure triggers, and restoration timers to ensure service continuity in SONET/SDH or OTN optical rings.
This MIB module describes the Optical APS.
Main OID:
slOptApsMib.1.3.6.1.4.1.4515.1.11
32
Objects
Active
Status
7
Dependencies
Imported Objects
Objects
32 total| Object Name |
|---|
slOptApsMibThis MIB module describes the Optical APS. MODULE-IDENTITY .1.3.6.1.4.1.4515.1.11 |
slOptApsConfig OBJECT IDENTIFIER .1.3.6.1.4.1.4515.1.11.1 |
optApsConfigTableThis table contains objects to configure APS
(Automatic Protection Switching) feature in a Optical
Channel. APS is the ability to configure a pair of Optical
connections for redundancy so that the hardware will
automatically switch the active connection from working connection
to the protection connection or vice versa, within 50ms,
when the active connection fails.
The optical connections are specified in the
optXpdConnConfigTable in the SL-OPT-MIB.
The APS is defined be specifying two entries in this table
the backup each other.
The optXpdConnConfigTable defines two entries for each dircetion
of the connection.
Only one of the two entries is used by the optical aps table.
The direction that is used is the direction from the User to Network. SEQUENCE OF OptApsConfigEntry .1.3.6.1.4.1.4515.1.11.1.1 |
optApsConfigEntryAn entry is identified by two transponding connections
that should protect each other. OptApsConfigEntry .1.3.6.1.4.1.4515.1.11.1.1.1 |
optApsConfigUserWorkingIndexThe ifIndex of the working optical interface connected to
the User side.rw InterfaceIndex (IF-MIB) .1.3.6.1.4.1.4515.1.11.1.1.1.1 |
optApsConfigNetWorkingIndexThe ifIndex of the working optical interface connected to
the Network side.rw InterfaceIndex (IF-MIB) .1.3.6.1.4.1.4515.1.11.1.1.1.2 |
optApsConfigUserProtectingIndexThe ifIndex of the protecting optical interface connected to
the User side. In the case of an Inline connection there is no
meaning to the order between the User and Network interfaces because
both side of the connections are connected to the Network.rw InterfaceIndex (IF-MIB) .1.3.6.1.4.1.4515.1.11.1.1.1.3 |
optApsConfigNetProtectingIndexThe ifIndex of the protecting optical interface connected to
the Network side. In the case of an Inline connection there is no
meaning to the order between the User and Network interfaces because
both side of the connections are connected to the Network.rw InterfaceIndex (IF-MIB) .1.3.6.1.4.1.4515.1.11.1.1.1.4 |
optApsConfigSchemeThis object is used to configure the optical
protection scheme.
equipment : Equipmet protection (with 4 FEO's)
facility : Facility protection (only 3 FEO's)rw Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.5 |
optApsConfigEnableThis object is used to enable or disable the APS feature
on the working/protection connection pairs. When enabled,
the hardware will automatically switch the active connection
from the working connection to the protection connection within 50ms,
or vice versa (read-write).rw Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.6 |
optApsConfigArchModeThis object is used to configure APS architecture mode
on the working/protection connection pairs (read-write).rw Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.7 |
optApsConfigActiveConnectionRxThis object indicates which Rx connection is currently active.
It could be the working connection, the protection connection or
none if neither working nor protection connection is active.
This object reflects the status of receive direction.
If optApsDirection is equal to biDirectional this object should
be eual to optApsActiveConnectionRx.ro Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.8 |
optApsConfigActiveConnectionTxThis object indicates which Tx connection is currently active.
It could be the working connection, the protection connection or
none if neither working nor protection connection is active.
This object reflects the status of receive direction.
If optApsDirection is equal to biDirectional this object should
be eual to optApsActiveConnectionRx.ro Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.9 |
optApsConfigWaitToRestoreThis object contains interval in minutes to wait
before attempting to switch back to working connection.
Not applicable if the connection is configured in
non-revertive mode, i.e. protection connection will
continue to be active, even if failures on the
working connection are cleared. The framer clears the
signal-fault and signal-degrade when APS switch
occurs. Please refer to 'optApsRevertive' for
description of non-revertive (read-write).rw Unsigned32 .1.3.6.1.4.1.4515.1.11.1.1.1.10 |
optApsConfigDirectionThis object is used to configure the switching
direction which this APS connection supports (read-write).
Unidirectional : APS switch only in one direction.
Bidirectional : APS switch in both ends of the conection.rw Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.11 |
optApsConfigRevertiveThis object is used to configure the APS revertive or
nonrevertive option (read-write).
revertive :
Will switch the working connection back to active state after
the Wait-To-restore interval has expired and the
working connection Signal-Fault/Signal-Degrade has been
cleared. Please refer to 'optApsWaitToRestore' for
description of Wait-To-Restore interval.
nonrevertive :
The protection connection continues to be the active connection,
The active connection does not switch to the working connection.rw Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.12 |
optApsConfigChanStatusIndicates 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 connection.
When applied to the null channel, this bit indicates that no
working channel may switch to the protection connection.
sfWorking
A signal failure condition on the working connection is in effect.
sfProtecting
A signal failure condition on the protecting connection is in effect.
switched
The switched bit is applied to a working channel if that
channel is currently switched to the protection connection.
lockedOutRemote
Indicate that the protection is locked out by
command issued on the remote NE.ro Bits .1.3.6.1.4.1.4515.1.11.1.1.1.13 |
optApsConfigChanSignalFailuresA count of Signal Failure conditions that have been
detected on the incoming signal. This condition occurs
when a loss of signal is detected.ro Counter32 .1.3.6.1.4.1.4515.1.11.1.1.1.14 |
optApsConfigChanSwitchoversThe number of times this channel has switched to the protection
connection. When queried with index value apsChanNumber set to 0, which
is the protection connection, this object will return 0.ro Counter32 .1.3.6.1.4.1.4515.1.11.1.1.1.15 |
optApsConfigChanLastSwitchoverThe value of sysUpTime when this channel last completed a switch
to the protection connection. If this channel has never switched to the
protection connection, or this channel is the protection connection, the value
0 will be returned.ro TimeTicks (SNMPv2-SMI) .1.3.6.1.4.1.4515.1.11.1.1.1.16 |
optApsConfigSwitchCommandA 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 channels
from switching to the protection connection by issuing a Lockout of
Protection request [unless a request of equal priority (i.e., a
Lockout of Protection) is already in effect].
(3) Forced Switch of Working (to Protection) - Switches the
working channel to the protection connection unless a request of equal
or higher priority is in effect, by issuing a Forced Switch
request.
(4) Forced Switch of Protection (to Working) - Switches the
working channel back from the protection connection to the working
connection unless a request of equal or higher priority is in effect,
by issuing a Forced Switch request. This command applies only
in the 1+1 architecture.
(5) Manual Switch of Working (to Protection) - Switches the
working channel to the protection connection unless a request of equal
or higher priority is in effect, by issuing a Manual Switch
request.
(6) Manual Switch of Protection (to Working) - Switches the
working channel back from the protection connection to the working
connection unless a request of equal or higher priority is in effect,
by issuing a Manual Switch request. This command applies only
in the 1+1 architecture for the null.
Reading this variable always returns zero (0).rw Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.17 |
optApsConfigSwitchReasonThe reason why APS switch happened. When the working
connection 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 is.
optApsRevertive : Switch back to working connection after the
Wait-to-Restore interval is over, and failures are
cleared. It is the lowest priority.
optApsManual : Manual switch causes APS switch unless a
request of equal or higher priority is in effect.
optApsSignalFailureHigh : switch occured due to SD failure.
optApsForceSwitch : Forced switch forces hardware to switch
the active connection even if the other connection (could be
working connection or protection connection) is in alarm.
optApsLockOut : This is the highest priority switch. This
will override all other requests.
optApsLockOut : indicates that the last switchover to the
working occurred because of protection lockout.ro Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.18 |
optApsConfigResetCountersSetting this variable to 1 will cause the counters
on all of the Optical APS Config Table to be initialized
to zero (read-write).rw Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.19 |
optApsConfigActiveRequestThe Active Switch APS request:
optApsRevertive : Switch back to working connection after the
Wait-to-Restore interval is over, and failures are
cleared. It is the lowest priority.
optApsManual : Manual switch causes APS switch unless a
request of equal or higher priority is in effect.
optApsSignalFailure : Switch due to signal failure.
optApsForceSwitch : Forced switch forces hardware to switch
the active connection even if the other connection (could be
working connection or protection connection) is in alarm.
optApsLockOut : This is the highest priority switch. This
will override all other requests.
optApsLockOut : indicates that the last switchover to the
working occurred because of protection lockout.ro Enumeration .1.3.6.1.4.1.4515.1.11.1.1.1.20 |
optApsConfigStatusThis object is used to create and delete rows in the
optApsConfigTable.rw RowStatus (SNMPv2-TC) .1.3.6.1.4.1.4515.1.11.1.1.1.21 |
optApsConfigLosThresholdConfigured threshold value for LOS detection of the optical switch.
This object is applicable only when slmOpticalSwitchExist is TRUE.
The value given in 0.1 dBm units. The range starts with -50.0 dBm.rw INTEGER .1.3.6.1.4.1.4515.1.11.1.1.1.22 |
slOptApsTraps OBJECT IDENTIFIER .1.3.6.1.4.1.4515.1.11.2 |
slOptApsTraps0 OBJECT IDENTIFIER .1.3.6.1.4.1.4515.1.11.2.0 |
optApsTrapSwitchover0An optApsTrapSwitchover notification is sent when the
value of an instance of optApsChanSwitchovers increments.
It is defined to support browsers that don't recognize RFC 2576. NOTIFICATION-TYPE .1.3.6.1.4.1.4515.1.11.2.0.1 |
optApsConfigTableChanged0An optApsConfigTableChanged notification is sent when the
content of the optApsConfigTable is changed.
The added/deleted entry is identified by the
optApsUserWorkingIndex object.
It is defined to support browsers that don't recognize RFC 2576. NOTIFICATION-TYPE .1.3.6.1.4.1.4515.1.11.2.0.2 |
optApsTrapSwitchoverAn optApsTrapSwitchover notification is sent when the
value of an instance of optApsChanSwitchovers increments. NOTIFICATION-TYPE .1.3.6.1.4.1.4515.1.11.2.1 |
optApsConfigTableChangedAn optApsConfigTableChanged notification is sent when the
content of the optApsConfigTable is changed.
The added/deleted entry is identified by the
optApsUserWorkingIndex object. NOTIFICATION-TYPE .1.3.6.1.4.1.4515.1.11.2.2 |