Channelized Port
Configuration Mode Commands
The channelized
port configuration mode provides the commands to create, configure,
bind, and manage the Frame Relay service ports on the channelized
line card.
IMPORTANT:
Before using these
commands, card framing should be configured for either SDH or SONET with
the framing command described in the Card Configuration Mode chapter.
IMPORTANT:
The commands or keywords/variables
that are available are dependent on platform type, product version,
and installed license(s).
alarm-disable
Entering this command
disables the alarm detection for designated sets of alarms.
Privilege:
Security Administrator,
Administrator
Syntax
alarm-disable { all | ds1-e1 | none | sonet-sdh }[ no | default ] alarm-disable
no
Deletes the disable
configuration.
default
Returns the settings
for disabling alarms to the system default.
all
Disables detection
of all SONET/SDH and DS1/E1 alarms.
ds1-e1
Disables detection
of the DS1/E1 alarms.
none
None of the alarm
detection is disabled so that all DS1/E1 and SONET/SDH
alarms are detected.
sonet-sdh
Disables detection
of SONE/SDH alarms.
Usage:
Configure selected
alarm detection for the port.
Example:
Enter the following
command to enable DS1/E1 and SONET/SDH alarm detection.
alarm-disable none
alarm-soak-timer
This command sets
the timer for the duration that a detected alarm will be soaked before
the alarm is reported.
Privilege:
Security Administrator,
Administrator
Syntax
alarm-soak-timer seconds
default alarm-soak-timer
default
Returns the timer
settings to the system default.
seconds
Defines the number
of seconds the system waits (soaks the alarm) before reporting the alarm.
seconds:
any integer from 0 to 32767.
Usage:
Configures the delay
before reporting detected alarms.
Example:
Configure a 20 second
alarm report delay.
alarm-soak-timer 20
clock-source
This command sets
the source of the port’s transmit clock.
IMPORTANT:
This command is only
available for releases 8.1 or higher.
Privilege:
Security Administrator,
Administrator
Syntax
clock-source { internal-timing | loop-timing }default clock-source
default
Using this command
combination sets the port clock source to internal timing.
internal-timing
Sets the port clock
to derive timing from the recovered receive clock.
loop-timing
Sets the port clock
to transmit in sync with the system timing.
Usage:
Use this command for
either SONET or SDH channelized (Frame Relay) ports on the SGSN.
Example:
The following command
resets the transmit clock source to internal timing.
default clock-source
description
Defines descriptive
text that provides useful information about the port.
Privilege:
Security Administrator,
Administrator
Syntax
description textno description
no
Erases the port’s
description from the configuration file.
text
text must
be a string of 1 to 79 alphanumeric characters with no spaces or
a string within double quotes that includes printable characters.
The description is case-sensitive.
Usage:
Set the description
to provide helpful information, for example the port’s
primary function, services, end users. Define any information, the
only limit is the number of characters.
Example
Example
description samplePortDescriptiveText
description “This is
a sample description”
dlci
Identifies a data
link connection identifier (DLCI), a frame relay logical connection,
and binds it with a specific channelized path configuration. Once
the DLCI is bound to the path, the system enters DLCI configuration
mode.
IMPORTANT:
The path command
must be configured prior to attempting configuration with the dlci command.
Privilege:
Security Administrator,
Administrator
Syntax
dlci path path_id { ds1 | e1 } connects { dlci dlci_id | timeslots slot# dlci dlci_id }no dlci path path_id { ds1 | e1 } connects
no
Disables the configured
DLCI.
path path_id
Identifies a specific
path configuration, set with the path command
in this configuration mode, that will be associated with a DLCI.
path_id must
be an integer from 1 to 3.
ds1 connects | e1 connects
Selects the framing
speed for the connection.
DS1: Is associated
with North American networks and would be the best choice to work
with the SONET framing selected with the card configuration
command.
connects:
Defines the number of logical connections supported via the DS1.
The selection must be an integer from 1 to 28.
E1: is associated
with European networks and would be associated with the SDH framing
selected with the card configuration
command.
connects:
Defines the number of logical connections supported via the E1.
The selection must be an integer from 1 to 21.
dlci dlci_id
Identifies a specific
Frame Relay PVC DLCI to associate with the path.
dlci_id: an
integer from 16 to 991.
timeslot slot#
Identifies one of
the timeslots within a timeslot group configured with the path command
for the E1, DS1 or fractional E1 port. Identifying one slot in a
group means that all the slots in that group will have the Frame
Relay parameters configured in the same manner.
slot#: Must
be an integer from 1 to 31.
Usage:
Associating a routing
path with a specific frame relay DLCI is a significant part of the process
for defining the frame relay interface.
Example:
Associate path 1 with
DLCI 123.
dlci path 1 ds1 21 dlci 123
end
Exits the Channelized
Port configuration mode and returns to the Exec mode.
Privilege:
Security Administrator,
Administrator
Usage:
Change the mode back
to the Exec mode.
exit
Exits the Channelized
Port configuration mode and returns to the Global configuration
mode.
Privilege:
Security Administrator,
Administrator
Usage:
Return to the Global
Configuration mode.
frame-relay
Configures the parameters
for the Frame Relay connections for E1, DS1 and fractional E1 ports
created with the path command. Frame
IMPORTANT:
The path command
must be configured prior to attempting configuration with the frame-relay command.
Privilege:
Security Administrator,
Administrator
Syntax
frame-relay path path_id { ds1 connects | e1 connects } timeslot slot# [ intf-type intf_type ] [ lmi_type lmi_type ]
path path_id
Identifies a specific
path configuration, set with the path command
in this configuration model.
path_id must
be an integer from 1 to 3.
ds1 connects | e1 connects
Selects the pipe splitting
for the connection.
DS1: Is associated
with North American networks and would be the best choice to work
with the SONET framing selected with the card configuration
command. DS1 splits the path into 28 logical connections.
connects:
Defines the number of logical connections supported via the DS1.
The selection must be an integer from 1 to 28.
E1: is associated
with European networks and would be associated with the SDH framing
selected with the card configuration
command. E1 splits the path into 21 logical connections.
connects:
Defines the number of logical connections supported via the E1.
The selection must be an integer from 1 to 21.
timeslot slot#
Identifies one of
the timeslots within a timeslot group configured with the path command
for the E1, DS1 or fractional E1 port. Identifying one slot in a group
means that all the slots in that group will have the Frame Relay
parameters configured in the same manner.
slot#: Must
be an integer from 1 to 31.
intf-type intf_type
Selecting the interface
type specifies signaling parameters for the DLCI, options include:
- dce: Selects
data circuit-terminating equipment -type signaling.
- dte: Selects
data terminal equipment -type signaling.
- nni: Selects
the network-to-network interface
Default: DTE for Release
8.0
Default: DCE for Release
8.1
frame-relay lmi_type lmi_type
Default: none.
Line management options
include:
- ansi - ANSI
ANNEXED LMI, may include option:
- cisco -
Cisco/Gang Of Four LMI
- none - LMI
Disabled
- q933a -
Q.933A LMI
Any of the above LMI
types can take one or more additional options
- n391 value -
Number of keep exchanges before requesting a full status message.
Default is 6. value must
be an integer from 1 to 255.
- n392 value -
Error Threshold value. Default is 2. value must
be an integer from 1 to 10.
- n393 value -
Monitored events count value. Default is 2. value must
be an integer from 1 to 10.
- t391 value -
Timer to send messages. Default is 10. value must
be an integer from 5 to 30.
- t392 value -
Polling verification timer value. Default is 15. value must
be an integer from 5 to 30.
Usage:
Use this command to
define LMI type and timers and to associate time group 2 with the Frame
Relay connection.
Example
Example
frame-relay path 1e1 3 timeslot 2
hopath-sdsf
Configures the high-order
path for degrade/signal failure (SDSF) bit error rate (BER)
thresholds.
Privilege:
Security Administrator,
Administrator
Syntax
hopath-sdsf hopath_value
hopath_value
- 0: Disabled
- 1 -1.E-03
- 2 - 1.E-04
- 3 - 1.E-05
- 4 - 1.E-06
- 5 - 1.E-07
- 6 - 1.E-08
- 7 - 1.E-09
- 8 - 1.E-10
Usage:
Sets a standard option
for the high-order path for SDSF.
The SD is kept at
a value of 100 erroredBits/sec less than the corresponding
value of the SF. So if the SD threshold is configured at 1 error
in every 100000 bits/sec, then the SF threshold automatically
becomes 1 error in every 1000 bits/sec.
line-timing
This command enables
the SPIO to recover transmit timing source via line attached to
the selected port. By default, line-timing is not enabled.
Privilege:
Security Administrator,
Administrator
Syntax
[ no ] line-timing
no
Disables line-timing
as the source for the transmit clock.
Usage:
The port must be enabled
(with the no
shutdown command ) to enable recovery of timing source
via the line. As well, the card’s slot number must be entered
in the recover
line# command of the BITS port configuration
mode.
Example:
Disable timing clock
recovery on this port.
no line-timing
loopback
Configures the type
of loopback mode used for diagnostic testing.
Privilege:
Security Administrator,
Administrator
Syntax
loopback { ds1-e1-diag | ds1-e1-line | none | sonet-sdh-diag | sonet-sdh-line }
ds1-e1-diag
Enables a system generated
diagnostic lookback signal at the DS1/E1 layer.
ds1-e1-line
Loops back a network
diagnostic signal at the DS1/E1 layer.
none
Stops diagnostic loopback
signalling.
sonet-sdh-diag
Enables a system generated
diagnostic lookback signal at the SONET/SDH layer.
sonet-sdh-line
Loops back a network
diagnostic signal at the SONET/SDH layer.
Usage:
Setup diagnostic loopback
signals for troubleshooting purposes.
lopath-sdsf
Configures the low-order
path for signal degrade/signal failure (SDSF) bit error rate
(BER) thresholds.
Privilege:
Security Administrator,
Administrator
Syntax
lopath-sdsf lopath_value
lopath_value
- 0: Disabled
- 1 -1.E-03
- 10 - 1.E-12
- 2 - 1.E-04
- 3 - 1.E-05
- 4 - 1.E-06
- 5 - 1.E-07
- 6 - 1.E-08
- 7 - 1.E-09
- 8 - 1.E-10
- 9 - 1.E-11
Usage:
Sets a standard option
for the low-order path for SDSF.
The SD is kept at
a value of 100 erroredBits/sec less than the corresponding
value of the SF. So if the SD threshold is configured at 1 error
in every 100000 bits/sec, then the SF threshold automatically
becomes 1 error in every 1000 bits/sec.
path
This command configures
the parameters that define the routing path for a DLCI. It must
match with the DLCI configuration parameters. The values entered
with these commands should be noted as they will be needed to configure
the frame-relay and dlci commands
also in this configuration mode.
Privilege:
Security Administrator,
Administrator
Syntax
path path_id { ds1 connects | e1 connects } frame-mapping multiplexing
index# index# framing mode mapping-mode { bit-sync | byte-sync } [ timeslots slot# [ slot# ] | frame-relay [ intf-type intf_type [ lmi_type lmi_type ] ] ]no path path_id { ds1 | e1 }connects
no
Deletes the routing
path entry from the configuration.
path path_id
Identifies a specific
path configuration that will be associated with a DLCI. The path_id must
be an integer from 1 to 3.
ds1 connects | e1 connects
Selects the channelization
for the connection.
DS1: (AKA: T1)
Is associated with North American networks and would be the best
choice to work with the SONET (can also work with SDH) framing selected
with the card configuration
command. DS1 splits the path into 28 logical connections.
connects:
Defines the number of logical connections supported via the DS1.
The selection must be an integer from 1 to 28.
E1: is associated
with European networks and would be associated with the SDH (can
also work with SONET) framing selected with the card configuration
command. E1 splits the path into 21 logical connections.
connects:
Defines the number of logical connections supported via the E1.
The selection must be an integer from 1 to 21.
frame-mapping
Frame mapping sets
the channelization according to the national standards that correlate with
the framing/speed standards. This option selects the mapping
of containers (C), virtual containers (VC), tributary units (TU),
and tributary unit groups (TUG), that is appropriate for the channel
characteristics:
- tu11-au3:
Appropriate for DS1 in SDH. Maps as follows AU-3—VC-3— m# —TUG-2— m# —TU-12—VC-12—C-12
- tu11-au4:
Appropriate for DS1 in SDH. Maps as follows AU-4—VC-4—TUG-3— m# —TUG-2— m# —TU-11—VC-11—C-11
- tu12-au3:
Appropriate for E1 in SDH. Maps as follows AU-3—VC-3— m# —TUG-2— m# —TU-12—VC-12—C-12
- tu12-au4:
Appropriate for E1 in SDH. Maps as follows AU-4—VC-4—TUG-3— m# —TUG-2— m# —TU-12—VC-12—C-12
- vt1.5: Only
appropriate for DS1 in SONET framing.
- vt2: Only
appropriate for E1 in SONET framing.
multiplexing index# index#
index#:
TUG-2 index - Must be an integer from 1 to 7 to identify a multiplex
channel between TUG-2 and VC-3 (E1) or TUG-3 (DS1).
index#:
TU index - Must be an integer from 1 to 4 (DS1) or 1 to 3 (E1) to
identify a multiplex channel between TU-11 (DS1) and TUG-2 or between
TU-12 (E1) and TUG-2.
framing mode
Defines the framing
modes to be used for the channelization to E1 or T1 of the (optical)
port.
- options for E1:
cas: standard
mapping with CAS
cas-crc4: CRC4
mapping with CAS
crc4: CRC4
mapping
standard: mapping
- options for DS1:
esf: extended
superframe mapping
sf: superframe
mapping
option for either
E1 or DS1:
unframed
timeslots timeslots
Defines up to 8 timeslot
groupings for multiple fractional DS1/E1 channels. Each
slot is 2.048/32 Mbytes. Slots 0 and 16 are reserved for
synchronization and alarms. Slots 1-15 and 17-31 are used for data.
Timeslots must be unique -- a timeslot can not be used in more than
one grouping.
timeslots: Must
be an integer from 1 to 31. Timeslot groups are separated by spaces
and can consist of a single slot and/or a range indicated
with a hyphen. Example: 3,7-10 is a single fractional group. NOTE
there is no space after the comma. Timeslots must be unique -- a
timeslot can not be used in more than one grouping.
frame-relay
Enables definition
of a Frame Relay connection with the frame-relay command.
IMPORTANT:
For release 8.1 and
higher, this feature has been moved to the frame-relay command.
intf-type intf_type
Selecting the interface
type specifies signaling parameters for the DLCI, options include:
- dce: Selects
data circuit-terminating equipment -type signaling.
- dte: Selects
data terminal equipment -type signaling.
- nni: Selects
the network-to-network interface
Default: DTE for Release
8.0
Default: DCE for Release
8.1
IMPORTANT:
For release 8.1 and
higher, this feature has been moved to the frame-relay command.
lmi_type lmi_type
Default: none.
Line management type
options include:
- ansi - ANSI
ANNEXED LMI, may include option:
- cisco -
Cisco/Gang Of Four LMI
- none - LMI
Disabled
- q933a -
Q.933A LMI
Any of the above LMI
types can take one or more additional options
- n391 value -
Number of keep exchanges before requesting a full status message.
Default is 6. value must
be an integer from 1 to 255.
- n392 value -
Error Threshold value. Default is 2. value must
be an integer from 1 to 10.
- n393 value -
Monitored events count value. Default is 2. value must
be an integer from 1 to 10.
- t391 value -
Timer to send messages. Default is 10. value must
be an integer from 5 to 30.
- t392 value -
Polling verification timer value. Default is 15. value must
be an integer from 5 to 30.
IMPORTANT:
For release 8.1 and
higher, this feature has been moved to the frame-relay command.
Usage:
Defines the signaling
characteristics of a frame relay connection or timeslots for a fractional
connection.
Use this command to
create E1 ports or fractional E1 ports. Fractional E1 ports are
created with the timeslot definitions. The fractional E1 port can
consist of one or more or all of the timeslots.
Example:
In the first example,
define timers for the q933a LMI-type.
path 1 e1 1 tu12-au4 1 1 framing crc4 mapping-mode bit-async frame-relay intf-type dce lmi_type q933a n391 6 n392 2 n393 2 t391 10 t392 15
The next example defines
3 groups of fractional timeslots with group 1 having slots 1-5 and 8,
group 2 having slot 22-25, and group 3 having slots 31.
path 1 e1 1 tu12-au3 1 1 framing cas mapping-mode bit-async timeslots 1-5,8 22-25 31
preferred slot
Identifies which card
in a chassis should assume revertive (redundancy auto-recovery)
functionality should the slot/port being configured go
down. This command must be issued on a per port basis, allowing
you to configure specific ports to be used on individual LCs or
SPIO cards. For example, ports 1 through 4 could be configured as “preferred” on
the LC in slot 17 while ports 5 through 8 are “preferred” on
the LC in slot 33. In this scenario, both LCs would be in an Active
operational state while still providing LC and port redundancy for
the other.
Privilege:
Security Administrator,
Administrator
Syntax
preferred slot slot#no preferred slot
slot#
Identifies the physical
slot in the chassis where the line card is installed.
no
Disables revertive,
or auto-recovery, operation for the port.
Usage:
This command enables
or disables revertive port redundancy. So after a port failover, when
the original port is restored to service (i.e. link up) the system
will return service to that port automatically.
Disabled, which is
the default setting, causes non-revertive operation; requiring an administrative
user to manually issue a port switch to command to return service
to the original port.
pwe3-cesopsn
This command has been
deprecated and replaced by the mtp2 command.
shutdown
Terminates all processes
supporting the port or blocks the shutting down of the port. Conversely,
this command with the no keyword
enables the port.
Privilege:
Security Administrator,
Administrator
no
Enables the port’s
administrative state. When omitted the card is shutdown (removed
from service).
Usage:
Shut down a port prior
to re-cabling and/or other maintenance activities.
This command with
the no keyword
is required to bring a port into service.
Example
Example
Use the following
command to disable a port:
shutdown
Use the following
command to enable a port for service:
no shutdown
snmp trap link-status
Enables/disables
the generation and sending of an SNMP (notification) trap when the
port experiences a change of state (up or down).
Privilege:
Security Administrator,
Administrator
Syntax
[ no ] snmp
trap link-status
no
Disables the sending
of traps for link-status changes.
Usage:
Enable the sending
of link-status change traps if there is a monitoring facility that
can use the information or if there are troubleshooting activities
in progress.
threshold high-activity
Configures the port’s
high and low activity thresholds.
Privilege:
Security Administrator,
Administrator
Syntax
threshold high-activity high_thresh [ clear low_thresh ]
high_thresh
Default: 50
Sets the threshold
for the highest percentage of port activity that must be met or
exceeded, within the polling interval, to generate an alert or alarm.
high_thresh_% can
be configured to any integer value between 0 and 100.
clear low_thresh
Default: 50
Sets the threshold
for the lowest percentage level of port activity that must be met
to generate and send a clear alarm. If port activity does not drop
to or below this threshold then the alarm is maintained.
low_thresh_% can
be configured to any integer value between 0 and 100.
IMPORTANT:
This value is ignored
for the Alert model. In addition, if this value is not configured
for the Alarm model, the system assumes it is identical to the high
threshold.
Usage:
High port activity
thresholds generate alerts or alarms based on the utilization percentage of
each configured port during the specified polling interval. This
threshold is configured on a per-port basis.
Alerts or alarms are
triggered for high port activity based on the following rules:
- Enter condition: Actual
percent utilization of a port > High Threshold
- Clear condition: Actual
percent utilization of a port < Low Threshold
If a trigger condition
occurs within the polling interval, the alert or alarm will not
be generated until the end of the polling interval.
Refer to the threshold poll command
in the Global Configuration Mode Commands chapter of this reference
to configure the polling interval and the threshold monitoring command
in this chapter to enable thresholding for this value.
Example:
The following command
configures a high port utilization threshold percent of 70 and a
low threshold of 50 for an system using the Alarm thresholding model:
threshold high-activity 70 clear 50
threshold monitoring
Enables thresholding
for port-level values.
Privilege:
Security Administrator,
Administrator
Syntax
[ no ] threshold monitoring
no
Disables threshold
monitoring for port-level values. This is the default setting.
Usage:
Thresholding on the
system is used to monitor the system for conditions that could potentially
cause errors or outage. Typically, these conditions are temporary
(i.e high-activity) and are quickly resolved. However, continuous
or large numbers of these error conditions within a specific time
interval may be indicative of larger, more severe issues. The purpose
of thresholding is to help identify potentially severe conditions
so that immediate action can be taken to minimize and/or
avoid system downtime.
Thresholding reports
conditions using one of the following mechanisms:
- SNMP traps: SNMP
traps have been created that indicate the condition (high threshold
crossing and/or clear) of each of the monitored values.
Complete descriptions and other information pertaining to these
traps is located in the starentMIB(8164).starentTraps(2) section
of the SNMP MIB Reference.
The generation of
specific traps can be enabled or disabled on the system allowing
you to view only those traps that are most important to you.
- Logs: The system
provides a facility called threshold for which active and event
logs can be generated. As with other system facilities, logs are
generated Log messages pertaining to the condition of a monitored
value are generated with a severity level of WARNING.
- Alarm System: High
threshold alarms generated within the specified polling interval
are considered “outstanding” until a the condition
no longer exists and/or a condition clear alarm is generated.
“Outstanding” alarms
are reported to through the system’s alarm subsystem and
are viewable through the system’s CLI.
The following table
indicates the reporting mechanisms supported by each of the above models.
Table 1. Thresholding Reporting
Mechanisms by Model
| Model |
SNMP
Traps |
Logs |
Alarm
System |
|
Alert
|
X
|
X
|
|
|
Alarm
|
X
|
X
|
X
|
This command enables
thresholding for port-level values. Refer to the threshold high-activity,threshold rx-utilization,
and threshold
tx-utilization commands in this chapter for information
on configuring these values. In addition refer to the threshold poll command
in the Global Configuration Mode Commands chapter of this reference
for information on configuring the polling interval over which these
values are monitored.
Example
Example
Use the following
command to terminate thresholding:
no threshold monitoring
threshold rx-utilization
Configures thresholds
for receive-port utilization.
Privilege:
Security Administrator,
Administrator
Syntax
threshold rx-utilization high_thresh [ clear low_thresh ]
high_thresh
Default: 80
The high threshold
receive port utilization percentage that must be met or exceeded
within the polling interval to generate an alert or alarm.
The percentage can
be configured to any integer value between 0 and 100.
clearlow_thresh
Default: 80
Allows the configuration
of the low threshold.
The low threshold
receive port utilization percentage that maintains a previously
generated alarm condition. If the utilization percentage falls below
the low threshold within the polling interval, a clear alarm will
be generated.
The percentage can
be configured to any integer value between 0 and 100.
IMPORTANT:
This value is ignored
for the Alert model. In addition, if this value is not configured
for the Alarm model, the system assumes it is identical to the high
threshold.
Usage:
Receive port utilization
thresholds generate alerts or alarms based on the utilization percentage
of each configured port in relation to data received during the
specified polling interval. This threshold is configured on a per-port
basis.
IMPORTANT:
Ports configured for
half-duplex do not differentiate between data received and data transmitted.
Therefore, to avoid redundant alarms, it is recommended that only
the receive or transmit
utilization threshold be configured.
Alerts or alarms are
triggered for receive port utilization based on the following rules:
- Enter condition: Actual
percent utilization of a port for received data ³ High Threshold
- Clear condition: Actual
percent utilization of a port for received data < Low Threshold
If a trigger condition
occurs within the polling interval, the alert or alarm will not
be generated until the end of the polling interval.
Refer to the threshold poll command
in the Global Configuration Mode Commands chapter of this reference
to configure the polling interval and the threshold monitoring command
in this chapter to enable thresholding for this value.
Example:
The following command
configures a receive port high utilization threshold percent of
70 and a low threshold of 50 for an system using the Alarm thresholding
model:
threshold rx-utilization 70 clear 50
threshold tx-utilization
Configures thresholds
for transmit port utilization.
Privilege:
Security Administrator,
Administrator
Syntax
threshold tx-utilization high_thresh [ clear low_thresh ]
high_thresh
Default: 80
The high threshold
transmit port utilization percentage that must be met or exceeded
within the polling interval to generate an alert or alarm.
The percentage can
be configured to any integer value between 0 and 100.
clear low_thresh
Default: 80
Allows the configuration
of the low threshold.
The low threshold
transmit port utilization percentage that maintains a previously
generated alarm condition. If the utilization percentage falls below
the low threshold within the polling interval, a clear alarm will
be generated.
The percentage can
be configured to any integer value between 0 and 100.
IMPORTANT:
This value is ignored
for the Alert model. In addition, if this value is not configured
for the Alarm model, the system assumes it is identical to the high
threshold.
Usage:
Transmit port utilization
thresholds generate alerts or alarms based on the utilization percentage
of each configured port in relation to data transmitted during the
specified polling interval. This threshold is configured on a per-port
basis.
IMPORTANT:
Ports configured for
half-duplex do not differentiate between data received and data transmitted.
Therefore, to avoid redundant alarms, it is recommended that only
the receive or transmit
utilization threshold be configured.
Alerts or alarms are
triggered for transmit port utilization based on the following rules:
- Enter condition: Actual
percent utilization of a port for transmit data ³ High Threshold
- Clear condition: Actual
percent utilization of a port for transmit data < Low Threshold
If a trigger condition
occurs within the polling interval, the alert or alarm will not
be generated until the end of the polling interval.
Refer to the threshold poll command
in the Global Configuration Mode Commands chapter of this reference
to configure the polling interval and the threshold monitoring command
in this chapter to enable thresholding for this value.
Example:
The following command
configures a transmit port high utilization threshold percent of
70 and a low threshold of 50 for an system using the Alarm thresholding
model:
threshold tx-utilization
70 clear 50
toh-sdsf
Enable/disable
line SDSF BER thresholds and configure the line transport overhead
(TOH) signal degrade and signal failure (SDSF) bit error rate (BER) threshold.
Privilege:
Security Administrator,
Administrator
Syntax
toh-sdsf toh_valuedefault toh-sdsf
default
Resets the default
which disables this threshold.
toh_value
To facilitate configuration
the SD and SF rates have been combined into a single setting. .
- 0: Disabled
- 1 -1.E-04
- 2 - 1.E-05
- 3 - 1.E-06
- 4 - 1.E-07
- 5 - 1.E-08
- 6 - 1.E-09
- 7 - 1.E-10
- 8 - 1.E-11
Usage:
This command can be
used to configure the line threshold whether the port is active
or standby and sets a standard option for the paired values of the
line’s signal degrade and signal failure (SDSF) BER.
The SD is kept at
a value of 100 erroredBits/sec less than the corresponding
value of the SF. So if the SD threshold is configured at 1 error
in every 100000 bits/sec, then the SF threshold automatically
becomes 1 error in every 1000 bits/sec.
The port will go operationally
down as soon as the SD threshold is crossed.
vc-mapping
This command has been
deprecated. Go to the frame-mapping keyword
in the path command
to configure this functionality.
