| apsConfigName |
.1.3.6.1.2.1.10.49.1.1.2.1.1 |
|
A textual name for the APS group.
|
| apsConfigRowStatus |
.1.3.6.1.2.1.10.49.1.1.2.1.2 |
|
The status of this APS group entry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value. Also,
all associated apsChanConfigEntry rows must represent
a set of consecutive channel numbers beginning with
0 or 1, depending on the selected architecture.
When set to notInService changes may be made to apsConfigMode,
apsConfigRevert, apsConfigDirection, apsConfigExtraTraffic,
apsConfigSdBerThreshold, apsConfigSfBerThreshold,
and apsConfigWaitToRestore. Also, associated apsChanConfigTable
objects may be added, deleted and modified.
|
| apsConfigMode |
.1.3.6.1.2.1.10.49.1.1.2.1.3 |
|
The architecture of the APS group.
onePlusOne
The 1+1 architecture permanently bridges the working
line to the protection line.
oneToN
The 1:n architecture allows one protection channel to
protect up to n working channels. When a fault is detected
on one of the n working channels that channel is bridged
over the protection channel.
onePlusOneCompatible
This refers to 1 + 1 bidirectional switching compatible with
1:n bidirectional switching as specified in ITU-T
Recommendation G.783 (04/97) section A.3.4.1. Since this
mode necessitates bidirectional switching, apsConfigDirection
must be set to bidirectional whenever onePlusOneCompatible
is set.
onePlusOneOptimized
This refers to 1 + 1 bidirectional switching optimized
for a network using predominantly 1 + 1 bidirectional
switching as specified in ITU-T Recommendation G.783 (04/97)
section B.1. Since this mode necessitates bidirectional
switching, apsConfigDirection must be set to bidirectional
whenever onePlusOneOptimized is set.
This object may not be modified if the associated
apsConfigRowStatus object is equal to active(1).
|
| apsConfigRevert |
.1.3.6.1.2.1.10.49.1.1.2.1.4 |
|
The revertive mode of the APS group.
nonrevertive
Traffic remains on the protection line until another switch
request is received.
revertive
When the condition that caused a switch to the protection
line has been cleared the signal is switched back to the
working line. Since switching is revertive with the 1:n
architecture, apsConfigRevert must be set to revertive if
apsConfigMode is set to oneToN.
Switching may optionally be revertive with the 1+1 architecture.
This object may not be modified if the associated
apsConfigRowStatus object is equal to active(1).
|
| apsConfigDirection |
.1.3.6.1.2.1.10.49.1.1.2.1.5 |
|
The directional mode of the APS group.
unidirectional
The unidirectional mode provides protection in one direction.
bidirectional
The bidirectional mode provides protection in both
directions.
This object may not be modified if the associated
apsConfigRowStatus object is equal to active(1).
|
| apsConfigExtraTraffic |
.1.3.6.1.2.1.10.49.1.1.2.1.6 |
|
This object enables or disables the transfer of extra traffic
on the protection channel in a 1:n architecture. This object
must be set to disabled if the architecture is 1+1. It may be
necessary to disable this in order to interwork with other SONET
network elements that don't support extra traffic.
This object may not be modified if the associated
apsConfigRowStatus object is equal to active(1).
|
| apsConfigSdBerThreshold |
.1.3.6.1.2.1.10.49.1.1.2.1.7 |
|
The Signal Degrade Bit Error Rate.
The negated value of this number is used as the exponent of
10 for computing the threshold value for the Bit Error Rate
(BER). For example, a value of 5 indicates a BER threshold of
10^-5.
This object may be modified if the associated
apsConfigRowStatus object is equal to active(1).
|
| apsConfigSfBerThreshold |
.1.3.6.1.2.1.10.49.1.1.2.1.8 |
|
The Signal Failure Bit Error Rate.
The negated value of this number is used as the exponent of
10 for computing the threshold value for the Bit Error Rate
(BER). For example, a value of 5 indicates a BER threshold of
10^-5.
This object may be modified if the associated
apsConfigRowStatus object is equal to active(1).
|
| apsConfigWaitToRestore |
.1.3.6.1.2.1.10.49.1.1.2.1.9 |
|
The Wait To Restore period in seconds.
After clearing of a condition that necessitated an
automatic switch, the wait to restore period must elapse
before reverting. This is intended to avoid rapid switch
oscillations.
GR-253-CORE specifies a Wait To Restore range of 5 to 12
minutes. G.783 defines a 5 to 12 minute Wait To Restore
range in section 5.4.1.1.3, but also allows for a shorter
WTR period in Table 2-1,
WaitToRestore value (MI_WTRtime: 0..(5)..12 minutes).
This object may not be modified if the associated
apsConfigRowStatus object is equal to active(1).
|
| apsConfigCreationTime |
.1.3.6.1.2.1.10.49.1.1.2.1.10 |
|
The value of sysUpTime at the time the row was
created
|
| apsConfigStorageType |
.1.3.6.1.2.1.10.49.1.1.2.1.11 |
|
The storage type for this conceptual row.
Conceptual rows having the value 'permanent' need not
allow write-access to any columnar objects in the row.
|
| apsStatusK1K2Rcv |
.1.3.6.1.2.1.10.49.1.2.1.1 |
|
The current value of the K1 and K2 bytes received on the
protection channel.
|
| apsStatusK1K2Trans |
.1.3.6.1.2.1.10.49.1.2.1.2 |
|
The current value of the K1 and K2 bytes transmitted on the
protection channel.
|
| apsStatusCurrent |
.1.3.6.1.2.1.10.49.1.2.1.3 |
|
The current status of the APS group.
modeMismatch
Modes other than 1+1 unidirectional monitor protection line
K2 bit 5, which indicates the architecture and K2 bits
6-8, which indicate if the mode is unidirectional or
bidirectional. A conflict between the current local mode
and the received K2 mode information constitutes a
mode mismatch.
channelMismatch
This bit indicates a mismatch between the transmitted K1
channel and the received K2 channel has been detected.
psbf
This bit indicates a Protection Switch Byte Failure (PSBF) is
in effect. This condition occurs when either an inconsistent
APS byte or an invalid code is detected. An inconsistent APS
byte occurs when no three consecutive K1 bytes of the last 12
successive frames are identical, starting with the last frame
containing a previously consistent byte. An invalid code occurs
when the incoming K1 byte contains an unused code or a code
irrelevant for the specific switching operation (e.g., Reverse
Request while no switching request is outstanding) in three
consecutive frames. An invalid code also occurs when the
incoming K1 byte contains an invalid channel number in three
consecutive frames.
feplf
Modes other than 1+1 unidirectional monitor the K1 byte
for Far-End Protection-Line failures. A Far-End
Protection-Line defect is declared based on receiving
SF on the protection line.
extraTraffic
This bit indicates whether extra traffic is currently being
accepted on the protection line.
|
| apsStatusModeMismatches |
.1.3.6.1.2.1.10.49.1.2.1.4 |
|
A count of Mode Mismatch conditions.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsStatusDiscontinuityTime.
|
| apsStatusChannelMismatches |
.1.3.6.1.2.1.10.49.1.2.1.5 |
|
A count of Channel Mismatch conditions.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsStatusDiscontinuityTime.
|
| apsStatusPSBFs |
.1.3.6.1.2.1.10.49.1.2.1.6 |
|
A count of Protection Switch Byte Failure conditions.
This condition occurs when either an inconsistent APS
byte or an invalid code is detected. An inconsistent APS
byte occurs when no three consecutive K1 bytes of the last
12 successive frames are identical, starting with the last
frame containing a previously consistent byte. An invalid
code occurs when the incoming K1 byte contains an unused
code or a code irrelevant for the specific switching
operation (e.g., Reverse Request while no switching request
is outstanding) in three consecutive frames. An invalid code
also occurs when the incoming K1 byte contains an invalid
channel number in three consecutive frames.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsStatusDiscontinuityTime.
|
| apsStatusFEPLFs |
.1.3.6.1.2.1.10.49.1.2.1.7 |
|
A count of Far-End Protection-Line Failure conditions.
This condition is declared based on receiving SF on
the protection line in the K1 byte.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsStatusDiscontinuityTime.
|
| apsStatusSwitchedChannel |
.1.3.6.1.2.1.10.49.1.2.1.8 |
|
This field is set to the number of the channel that is
currently switched to protection. The value 0 indicates no
channel is switched to protection. The values 1-14 indicate
that working channel is switched to protection.
|
| apsStatusDiscontinuityTime |
.1.3.6.1.2.1.10.49.1.2.1.9 |
|
The value of sysUpTime on the most recent occasion at which
any one or more of this APS group's counters suffered a
discontinuity. The relevant counters are the specific
instances associated with this APS group of any Counter32
object contained in apsStatusTable. If no such
discontinuities have occurred since the last re-initialization
of the local management subsystem, then this object contains
a zero value.
|
| apsMapGroupName |
.1.3.6.1.2.1.10.49.1.3.2.1.2 |
|
A textual name for the APS group which this channel is
included in. If the channel is not part of an APS group
this value is set to a string of size 0.
When an instance of apsChanConfigIfIndex is set equal to an
instance of ifIndex that has an ifType value of sonet(39),
apsMapGroupName is set equal to the corresponding value of
apsChanConfigGroupName.
If an instance of ifIndex that has an ifType value of
sonet(39) ceases to be equal to an instance of
apsChanConfigIfIndex, either because of a change in the value
of apsChanConfigIfIndex, or because of row deletion in the
ApsChanConfigTable, apsMapGroupName is set to a string of
size 0.
|
| apsMapChanNumber |
.1.3.6.1.2.1.10.49.1.3.2.1.3 |
|
This field is set to a unique channel number within an APS
group. The value 0 indicates the null channel. The values
1-14 define a working channel. If the SONET LTE is not part
of an APS group this value is set to -1.
When an instance of apsChanConfigIfIndex is set equal to an
instance of ifIndex that has an ifType value of sonet(39),
apsMapChanNumber is set equal to the corresponding value of
apsChanConfigNumber.
If an instance of ifIndex that has an ifType value of
sonet(39) ceases to be equal to an instance of
apsChanConfigIfIndex, either because of a change in the
value of apsChanConfigIfIndex, or because of row deletion
in the ApsChanConfigTable, apsMapChanNumber is set to -1.
|
| apsChanConfigGroupName |
.1.3.6.1.2.1.10.49.1.4.1.1 |
|
A textual name for the APS group which this channel is
included in.
|
| apsChanConfigNumber |
.1.3.6.1.2.1.10.49.1.4.1.2 |
|
This field is set to a unique channel number within an APS
group. The value 0 indicates the null channel. The values
1-14 define a working channel.
This field must be assigned a unique number within the group.
|
| apsChanConfigRowStatus |
.1.3.6.1.2.1.10.49.1.4.1.3 |
|
The status of this APS channel entry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
A row in the apsChanConfigTable may not be created,
deleted, set to notInService or otherwise modified
if the apsChanConfigGroupName value is equal to an
apsConfigName value and the associated apsConfigRowStatus
object is equal to active. However, if the apsConfigRowStatus
object is equal to notInService, a row may be created, deleted
or modified. In other words, a channel may not be added,
deleted or modified if the group is active.
A row may be created with an apsChanConfigGroupName value
that is not equal to any existing instance of apsConfigName.
This action is the initial step in adding a SONET LTE to a
new APS group.
If this object is set to destroy, the associated instance
of apsMapGroupName will be set to a string of size 0 and
the apsMapChanNumber will be set to -1. The channel status
entry will also be deleted by this action.
apsChanConfigNumber must be set to a unique channel number
within the APS group. The value 0 indicates the null channel.
The values 1-14 define a working channel. When an attempt is
made to set the corresponding apsConfigRowStatus field to
active the apsChanConfigNumber values of all entries with equal
apsChanConfigGroupName fields must represent a set of
consecutive integer values beginning with 0 or 1, depending on
the architecture of the group, and ending with n, where n is
greater than or equal to 1 and less than or equal to 14.
Otherwise, the error inconsistentValue is returned to the
apsConfigRowStatus set attempt.
|
| apsChanConfigIfIndex |
.1.3.6.1.2.1.10.49.1.4.1.4 |
|
The Interface Index assigned to a SONET LTE. This is an
interface with ifType sonet(39). The value of this object
must be unique among all instances of apsChanConfigIfIndex.
In other words, a particular SONET LTE can only be configured
in one APS group.
This object cannot be set if the apsChanConfigGroupName
instance associated with this row is equal to an instance of
apsConfigName and the corresponding apsConfigRowStatus object
is set to active. In other words this value cannot be changed
if the APS group is active. However, this value may be changed
if the apsConfigRowStatus value is equal to notInService.
|
| apsChanConfigPriority |
.1.3.6.1.2.1.10.49.1.4.1.5 |
|
The priority of the channel.
This field determines whether high or low priority
SD and SF codes are used in K1 requests.
This field is only applicable if the channel is to be included
in a group using the 1:n architecture. It is not applicable if
the channel is to be included in a group using the 1+1
architecture, and is ignored in that case.
This object cannot be set if the apsChanConfigGroupName
instance associated with this row is equal to an instance of
apsConfigName and the corresponding apsConfigRowStatus object
is set to active. In other words this value cannot be changed
if the APS group is active. However, this value may be changed
if the apsConfigRowStatus value is equal to notInService.
|
| apsChanConfigStorageType |
.1.3.6.1.2.1.10.49.1.4.1.6 |
|
The storage type for this conceptual row.
Conceptual rows having the value 'permanent' need not
allow write-access to any columnar objects in the row.
|
| apsCommandSwitch |
.1.3.6.1.2.1.10.49.1.5.1.1 |
|
Allows the initiation of an APS switch command on the
APS group and channel specified by the index values.
When read this object returns the last command written
or noCmd if no command has been written to this
channel since initialization. The return of the last command
written does not imply that this command is currently in
effect. This request may have been preempted by a higher
priority local or remote request. In order to determine the
current state of the APS group it is necessary to read
the objects apsStatusK1K2Rcv and apsStatusK1K2Trans.
The value lockoutOfProtection should only be applied to the
protection line channel since that switch command prevents any
of the working channels from switching to the protection line.
Following the same logic, forcedSwitchProtectToWork and
manualSwitchProtectToWork should only be applied to the
protection line channel.
forcedSwitchWorkToProtect and manualSwitchWorkToProtect
should only be applied to a working channel.
|
| apsCommandControl |
.1.3.6.1.2.1.10.49.1.5.1.2 |
|
Allows the initiation of an APS control command on the
APS group and channel specified by the index values.
When read this object returns the last command written or
noCmd if no command has been written to this channel since
initialization.
This object does not apply to the protection line.
|
| apsChanStatusCurrent |
.1.3.6.1.2.1.10.49.1.6.1.1 |
|
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 channel, this bit indicates
that no working channel may switch to the protection line.
sd
A signal degrade condition is in effect.
sf
A signal failure condition is in effect.
switched
The switched bit is applied to a working channel if that
channel is currently switched to the protection line.
wtr
A Wait-to-Restore state is in effect.
|
| apsChanStatusSignalDegrades |
.1.3.6.1.2.1.10.49.1.6.1.2 |
|
A count of Signal Degrade conditions. This condition
occurs when the line Bit Error Rate exceeds the currently
configured value of the relevant instance of
apsConfigSdBerThreshold.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsChanStatusDiscontinuityTime.
|
| apsChanStatusSignalFailures |
.1.3.6.1.2.1.10.49.1.6.1.3 |
|
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 the currently configured value of
the relevant instance of apsConfigSfBerThreshold.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsChanStatusDiscontinuityTime.
|
| apsChanStatusSwitchovers |
.1.3.6.1.2.1.10.49.1.6.1.4 |
|
When queried with index value apsChanConfigNumber other than
0, this object will return the number of times this channel
has switched to the protection line.
When queried with index value apsChanConfigNumber set to 0,
which is the protection line, this object will return the
number of times that any working channel has been switched
back to the working line from this protection line.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsChanStatusDiscontinuityTime.
|
| apsChanStatusLastSwitchover |
.1.3.6.1.2.1.10.49.1.6.1.5 |
|
When queried with index value apsChanConfigNumber other than
0, this object will return 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, the
value 0 will be returned.
When queried with index value apsChanConfigNumber set to 0,
which is the protection line, this object will return the
value of sysUpTime the last time that a working channel was
switched back to the working line from this protection line.
If no working channel has ever switched back to the working
line from this protection line, the value 0 will be returned.
|
| apsChanStatusSwitchoverSeconds |
.1.3.6.1.2.1.10.49.1.6.1.6 |
|
The cumulative Protection Switching Duration (PSD) time in
seconds. For a working channel, this is the cumulative number
of seconds that service was carried on the protection line.
For the protection line, this is the cumulative number of
seconds that the protection line has been used to carry any
working channel traffic. This information is only valid if
revertive switching is enabled. The value 0 will be returned
otherwise.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsChanStatusDiscontinuityTime. For example, if the value
of an instance of apsChanStatusSwitchoverSeconds changes
from a non-zero value to zero due to revertive switching
being disabled, it is expected that the corresponding
value of apsChanStatusDiscontinuityTime will be updated
to reflect the time of the configuration change.
|
| apsChanStatusDiscontinuityTime |
.1.3.6.1.2.1.10.49.1.6.1.7 |
|
The value of sysUpTime on the most recent occasion at which
any one or more of this channel's counters suffered a
discontinuity. The relevant counters are the specific
instances associated with this channel of any Counter32
object contained in apsChanStatusTable. If no such
discontinuities have occurred since the last re-initialization
of the local management subsystem, then this object contains
a zero value.
|
