Channelized Port Configuration Mode Commands


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.
Product
SGSN
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.
Product
SGSN
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.
Product
SGSN
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.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
description text
no 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
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.
Product
SGSN
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.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
end
Usage
Change the mode back to the Exec mode.
 
exit
Exits the Channelized Port configuration mode and returns to the Global configuration mode.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
exit
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.
Product
SGSN
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
frame-relay path 1 e1 3 timeslot 2
 
hopath-sdsf
Configures the high-order path for SDSF bit error rate (BER) thresholds.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
hopath-sdsf hopath_value
hopath_value
Usage
Sets a standard option for the high-order path for SDSF.
Example
hopath-sdsf 1
 
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.
Product
SGSN
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.
Product
SGSN
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.
Example
loopback ds1-e1-diag
 
lopath-sdsf
Configures the low-order path for SDSF bit error rate (BER) thresholds.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
lopath-sdsf lopath_value
lopath_value
Usage
Sets a standard option for the low-order path for SDSF.
Example
lopath-sdsf 1
 
mtp2
Creates an MTP2 configuration instance for the port.
Important: The port DS1/E1 tributaries must be configured using the path command prior to creating a port MTP2 configuration.
Important: The MTP2 feature is not yet fully supported and so the command is not yet fully functional. Please ignore this keyword, at this time, while configuring the channelized port.
Product
SGSN
Privilege
Security Administrator, Administrator
 
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.
Product
SGSN
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-typeintf_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.
cas: standard mapping with CAS
cas-crc4: CRC4 mapping with CAS
crc4: CRC4 mapping
standard: mapping
esf: extended superframe mapping
sf: superframe mapping
mapping-mode
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.
Product
SGSN
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.
Example
preferred slot 17
 
pwe3-cesopsn
This command has been replaced by the mtp2 command.
Product
SGSN
Privilege
Security Administrator, Administrator
 
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.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
shutdown
no shutdown
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
shutdown
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).
Product
All
Privilege
Security Administrator, Administrator
Syntax
snmp trap link-status
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.
Example
snmp trap link-status
no snmp trap link-status
 
threshold high-activity
Configures the port’s high and low activity thresholds.
Product
SGSN
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 ³ 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.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
threshold monitoring
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.
Thresholding Reporting Mechanisms by Model
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.
 
threshold rx-utilization
Configures thresholds for receive-port utilization.
Product
SGSN
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.
Product
SGSN
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
Configures the line SDSF bit error rate (BER) thresholds.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
toh-sdsf toh_value
toh_value
Usage
Sets a standard option for the line SDSF BER.
Example
toh-sdsf 1
 
vc-mapping
This command has been deprecated. Go to the frame-mapping keyword in the path command to configure this functionality.
 
 

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