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CPOS interface commands
clock
Use clock to set the clock mode for a CPOS interface.
Use undo clock to restore the default.
Syntax
clock { master | slave }
undo clock
Default
The clock mode of a CPOS interface is slave.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
master: Sets the clock mode to master.
slave: Sets the clock mode to slave.
Usage guidelines
When the clock mode of a CPOS interface is master, it uses the internal clock source.
When the clock mode of a CPOS interface is slave, it uses the line clock source.
When connected to a SDH device, the CPOS interface must use the slave clock mode. The SDH network clock is more precise.
On a CR-HIC-CLP04 card, interfaces 1 and 2 are in the same group, and interfaces 3 and 4 are in the same group. When configuring the clock mode, configure the same clock mode for interfaces in the same group.
When two CPOS interfaces are directly connected, you must configure the two ends with different clock modes.
Examples
# Set the clock mode to master for CPos 1/2/2/1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] clock master
controller cpos
Use controller cpos to enter CPOS interface view.
Syntax
controller cpos cpos-number
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
cpos-number: Specifies a CPOS interface by its number.
Examples
# Enter the interface view of CPos 1/2/2/1.
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1]
default
Use default to restore the default settings for a CPOS interface.
Syntax
default
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
|
|
CAUTION: The default command might interrupt ongoing network services. Make sure you are fully aware of the impact of this command when you use it on a live network. |
This command might fail to restore the default settings for some commands because of command dependencies or system restrictions. You can use the display this command in interface view to check for these commands and perform their undo forms or follow the command reference to restore their default settings. If your restoration attempt still fails, follow the error message to resolve the problem.
Examples
# Restore the default settings for CPos 1/2/2/1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] default
description
Use description to configure the description of an interface.
Use undo description to restore the default.
Syntax
description text
undo description
Default
The interface description uses the interface name Interface format, for example, Cpos2/2/1 Interface.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
text: Specifies the description, a case-sensitive string of 1 to 255 characters.
Examples
# Configure the description of CPos 1/2/2/1 as CPOS-interface.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] description CPOS-interface
display controller cpos
Use display controller cpos to display status information for CPOS interfaces.
Syntax
display controller [ cpos [ cpos-number ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
cpos [ cpos-number ] : Specifies a CPOS interface by its number. If you do not specify the cpos keyword, this command displays information about all CPOS interfaces and CE1 interfaces. If you specify the cpos keyword without specifying an interface, this command displays information about all CPOS interfaces.
Usage guidelines
This command also displays alarms and errors that occurred to the regenerator section, multiplex section, and higher-order path.
The following table lists the possible error types in the command output.
Table 1 Possible output error types
|
Field |
Description |
|
FRED |
Receive loss of basic frame alignment, or receive frames with red alarm errors. |
|
COFA |
Change of frame alignment. |
|
SEF |
Severely error frame. Four consecutive frame synchronization errors generate one SEF. |
|
FERR |
Framing Bit Error. It refers to frames with the Ft/Fs/FPS/FAS error. |
|
CERR |
CRC error. |
|
FEBE |
Far end block error. This error occurs when the E1 channel uses the CRC4 framing format. |
|
BERR |
PRBS bit error (pseudo-random binary sequence bit error, for test purposes only). |
|
BIP |
Bit-interleaved parity. |
|
REI |
Remote error indication. |
In this table, FRED, COFA, and SEF are called alarm errors (AERRs).
# Display CPos 1/2/2/1 status information.
<Sysname> display controller cpos 1/2/2/1
Cpos 1/2/2/1
Current state: UP
Description : Cpos 1/2/2/1 Interface
Last clearing of counters: Never
Current system time:2020-04-02 07:29:36
Last time when physical state changed to up:2020-04-02 07:26:07
Last time when physical state changed to down:2020-04-02 07:27:19
Port connector type: OC3/STM_1_SR_SFP
Physical layer is packet over SDH
Port speed type: STM-1
Multiplex mode: AU-4
Loopback is not set
Clock source: Slave
BER thresholds:
SD: 10e-6 SF: 10e-4
Regenerator section layer:
J0(TX): ""
J0(RX): ""
Alarm: LOS
Error: RS_BIP(B1) 900
Multiplex section layer:
Alarm: NONE
Error: MS_BIP(B2) 6751126, MS_REI 40800
Higher order path layer:
C2(TX): 0x2 C2(RX): 0xff
J1(TX): ""
J1(RX): ""
Alarm: HP_TIM AU_AIS HP_RDI HP_PLM
Error: HP_BIP(B3) 1002, HP_REI 20226, HP_PJE 0, HP_NJE 0
Table 2 Command output
|
Field |
Description |
|
Current state |
Physical link state of the interface: · Administratively DOWN—The interface has been shut down by using the shutdown command. · DOWN—The interface is administratively up, but its physical state is down (possibly because no physical link exists or the link has failed). · UP—The interface is both administratively and physically up. |
|
Description |
Description of the interface. |
|
Last clearing of counters |
The most recent time that the reset counters controller cpos command was executed. This field displays Never if this command has not been executed since the device startup. |
|
Current system time |
If you do not configure a time zone, the system time is displayed in the format of YYYY-MM-DD HH:MM:SS. If you configure a time zone, the system time is displayed in the format of YYYY-MM-DD HH:MM:SS UTC±HH:MM:SS. |
|
Frame-format SDH, multiplex AU-4, clock master, loopback none |
Physical layer information of the CPOS interface: · The framing format is SDH. · The multiplexing path is AU-4. · The clock mode is master. · Loopback is disabled. |
|
SD threshold: 6 , SF threshold: 3 |
SD threshold and SF threshold of the CPOS interface. |
|
Optical |
Transmission medium. |
|
Tx: J0 |
Transmitted overhead bytes. |
|
Rx: J0 |
Received overhead bytes. |
|
Alarm |
Alarm statistics. |
|
Error |
Error statistics. |
|
Higher order Path(VC-4-1) |
Higher-order path. The multiplex path is AU-4. There is only one VC-4 for STM-1. |
display controller cpos e1
display controller cpos e1
Use display controller cpos e1 to display status information for an E1 channel on a CPOS interface.
Syntax
display controller [ cpos cpos-number e1 e1-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
cpos cpos-number: Specifies a CPOS interface by its number.
e1 e1-number: Specifies the number of an E1 channel on the CPOS interface, in the range of 1 to 63.
Usage guidelines
If you do not specify the cpos cpos-number e1 e1-number option, this command displays status information for CPOS interfaces. If you specify the cpos cpos-number e1 e1-number option, this command displays errors and alarms that occurred to lower-order paths and E1 frames.
# Display the status information of E1 channel 1 on CPos 1/2/2/1.
<Sysname> display controller cpos 1/2/2/1 e1 1
Cpos 1/2/2/1
Current state: UP
Description: Cpos 1/2/2/1 Interface
Lower order path:
TxFlag: J2: "" LP-C2: 2
RxFlag: J2: "" LP-C2: 7
Alarm: LP-AIS LP-RDI LP-RFI LP-C2-Mismatched LP-J2-Unstable
Error: 1164 BIP2, 2047 FEBE
CE1 1 (1-1-1-1) is down
Frame-format: NO-CRC4, clock: slave, loopback: none
Alarm: AIS LFA Red
Error: 0 Fer
Table 3 Command output
|
Field |
Description |
|
Current state |
Physical link state of the interface: · Administratively DOWN—The interface has been shut down by using the shutdown command. · DOWN—The interface is administratively up, but its physical state is down (possibly because no physical link exists or the link has failed). · UP—The interface is both administratively and physically up. |
|
Description |
Description of the interface. |
|
TxFlag |
Transmitted overhead bytes. |
|
RxFlag |
Received overhead bytes. If the J2 overhead bytes are invisible characters, this field displays RxFlag: J2: unknow. |
|
Alarm |
Alarm statistics. |
|
Error |
Error statistics. |
|
CE1 1 (1-1-1-1) is down |
E1 channel 1 is physically down. The four sections in 1-1-1-1 represent the VC-4 number, TUG-3 number, TUG-2 number, and TU-12 number, from left to right. |
|
Frame-format: NO-CRC4, clock: slave, loopback: none |
Physical layer information for the E1 channel: · The framing format is no-CRC4. · The clock mode is slave. · Loopback is disabled. |
display controller phy-option
Use display controller phy-option to display the physical attributes of a controller interface.
Syntax
display controller [ interface-type [ interface-number ] ] phy-option
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
interface-type: Specifies an interface type.
interface-number: Specifies an interface number.
Usage guidelines
If you do not specify a controller interface type, this command displays information about all controller interfaces.
If you specify a controller interface type but do not specify a controller interface number, this command displays information about all controller interfaces of the specified type.
Examples
# Display the physical attributes of CPOS interface CPOS 1/2/3/1.
<Sysname> display controller Cpos 1/2/3/1 phy-option
Cpos1/2/3/1
Current state: DOWN
Transceiver information:
Transceiver Type: 1000_BASE_SX_SFP
Wavelength(nm): 850
Transfer Distance(m): 100
Digital Diagnostic Monitoring : YES
Vendor Name : H3C
RX power: -3564dBm/100, Alarm thresholds:[-30, -10]uw/10
TX power: -519dBm/100, Alarm thresholds:[0, 5]uw/10
Table 4 Command output
|
Field |
Description |
|
Current state |
Physical link state of the interface: · Administratively DOWN—The interface has been shut down by using the shutdown command. · DOWN—The interface is administratively up, but its physical state is down (possibly because no physical link exists or the link has failed). · UP—The interface is both administratively and physically up. |
|
Transceiver information |
Transceiver module information. |
|
Transceiver Type |
Physical model of the transceiver module. |
|
Wavelength(nm) |
Central wavelength (in nm) of the transmit laser. If the transceiver module supports multiple wavelengths, every two wavelength values are separated by a comma. For a copper cable, this field displays N/A. |
|
Transfer Distance(xx) |
Transmission distance, where xx indicates the distance unit: · km—Kilometers, for single-mode transceiver modules. · m—Meters, for other transceiver modules. If the transceiver module supports multiple types of transmission media, this field displays the transmission distance for each type, in the form of transmission distance (medium type). Transmission medium types include: · 9 um—9/125 µm single-mode fiber. · 50 um—50/125 µm multimode fiber. · 62.5 um—62.5/125 µm multimode fiber. · TP—Twisted pair. · CX4—CX4 cable. |
|
Digital Diagnostic Monitoring |
Support for digital diagnostic monitoring: · YES. · NO. |
|
Vendor Name |
Manufacturer or custom vendor of the transceiver module. |
|
RX power(dBm/100) |
Rx power in dBm/100. |
|
TX power(dBm/100) |
Tx power in dBm/100. |
|
Alarm thresholds |
Alarm thresholds for the Rx or Tx power. |
Related commands
display controller
display this controller
Use display this controller to display the operating status and information of a controller interface.
Syntax
display this controller
Views
Interface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
In controller interface view, to quickly view the operating status or packet statistics of the interface, execute this command.
For a controller interface, the output from the display this interface command in controller interface view is the same as the output from the display controller interface-type interface-number command in any view.
Related commands
display controller
e1 channel-set
Use e1 channel-set to bundle timeslots on an E1 channel into one channel set.
Use undo e1 channel-set to remove a channel set.
Syntax
e1 e1-number channel-set set-number timeslot-list range
undo e1 e1-number channel-set set-number
Default
No channel sets exist.
Views
Predefined user roles
network-admin
mdc-admin
Parameters
e1-number: Specifies the number of an E1 channel on the CPOS interface. The value range for this argument is 1 to 63.
set-number: Specifies a channel set number in the range of 0 to 30.
timeslot-list range: Specifies a comma-separated list of timeslot items. An item can be an individual timeslot or a timeslot range. Use a hyphen (-) to separate the start and end timeslot numbers of a range. The value range for the timeslot number is 1 to 31.
Usage guidelines
When the E1 channel is channelized, timeslot 0 is used for synchronization. The other 31 timeslots can be bundled to form one or multiple channel sets. For each channel set, the system automatically creates a serial interface numbered in the format interface number/channel number:channel set number.
For successful communication, make sure the local end has the same timeslot bundling settings as the remote end.
Examples
# Bundle timeslots 1 to 31 into a channel set on E1 channel 63.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] e1 63 channel-set 1 timeslot-list 1-31
# Enter the view of the serial interface created for the channel set.
[Sysname-Cpos 1/2/2/1] quit
[Sysname] interface serial 1/2/2/1/63:1
[Sysname-Serial 1/2/2/1/63:1]
e1 unframed
e1 clock
Use e1 clock to set the clock mode of an E1 channel.
Use undo e1 clock to restore the default clock mode of an E1 channel.
Syntax
e1 e1-number clock { master | slave }
undo e1 e1-number clock
Default
The clock mode of an E1 channel is slave.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
e1-number: Specifies the number of an E1 channel on the CPOS interface. The value range for this argument is 1 to 63.
master: Sets the clock mode to master.
slave: Sets the clock mode to slave.
Usage guidelines
The clock mode settings of E1 channels on a CPOS interface are independent of one another.
Set the clock mode on an E1 channel depending on its connected device.
· If the connected device is a SDH device, enable the slave clock mode on the channel. The SDH network clock is more precise than the clock provided by the device.
· If the E1 channel is directly connected to a router, make sure the E1 channel uses a different clock mode than the peer end.
Examples
# Set the clock mode to master on E1 channel 1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] e1 1 clock master
e1 flag
Use e1 flag to set the C2 or J2 overhead byte for an E1 channel.
Use undo e1 flag to restore the default C2 or J2 overhead byte for an E1 channel.
Syntax
e1 e1-number flag { c2 c2-value | j2 { sdh | sonet } j2-string }
undo e1 e1-number flag { c2 | j2 { sdh | sonet } }
Default
The C2 byte value is 2 (hexadecimal).
The cyclic value for the J2 byte is null for both SDH and SONET.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
e1-number: Specifies an E1 channel by its number. The value range for this argument is 1 to 63.
c2: Specifies the low-order channel signal tag byte (C2).
c2-value: Specifies the value of the C2 byte. The value range is 0 to 7 (except 5) in hexadecimal notation.
j2: Specifies the low-order channel trace byte (J2).
sdh: Specifies the trace byte in SDH format.
sonet: Specifies the trace byte in SONET format.
j2-string: Specifies the string filled in the J2 byte, a string of 1 to 15 characters for SDH or a string of 1 to 62 characters for SONET.
Examples
# Set the C2 byte to 7 (hexadecimal) for E1 channel 3 on CPos 1/2/2/1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] e1 3 flag c2 7
e1 frame-format
Use e1 frame-format to set the framing format of an E1 channel.
Use undo e1 frame-format to restore the default framing format of an E1 channel.
Syntax
e1 e1-number frame-format { crc4 | no-crc4 }
undo e1 e1-number frame-format
Default
The framing format of an E1 channel is no-CRC4.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
e1-number: Specifies the number of an E1 channel on the CPOS interface. The value range for this argument is 1 to 63.
crc4: Sets the framing format to CRC4.
no-crc4: Sets the framing format to no-CRC4.
Examples
# Set the framing format to CRC4 for E1 channel 1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] e1 1 set frame-format crc4
e1 loopback
Use e1 loopback to set the loopback mode for an E1 channel.
Use undo e1 loopback to disable loopback for an E1 channel.
Syntax
e1 e1-number loopback { local | remote }
undo e1 e1-number loopback
Default
Loopback is disabled on an E1 channel.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
e1-number: Specifies the number of an E1 channel on the CPOS interface. The value range for this argument is 1 to 63.
local: Enables internal loopback.
remote: Enables external loopback.
Usage guidelines
You can test E1 channels by using the loopback command with different keywords.
· In an internal loopback, the sender's data is directly looped to the receiver.
· In an external loopback, data received by the receiver is looped back directly without passing through the E1 framer.
Examples
# Enable internal loopback on E1 channel 1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] e1 1 loopback local
display controller cpos e1
e1 shutdown
Use e1 shutdown to shut down an E1 channel.
Use undo e1 shutdown to bring up an E1 channel.
Syntax
e1 e1-number shutdown
undo e1 e1-number shutdown
Default
E1 channels are up.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
e1-number: Specifies the number of an E1 channel on the CPOS interface. The value range for this argument is 1 to 63.
Usage guidelines
When you shut down an E1 channel, its associated serial interfaces are also shut down.
Examples
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] e1 1 shutdown
e1 unframed
Use e1 unframed to configure an E1 channel on a CPOS interface to operate in unframed mode.
Use undo e1 unframed to restore the default operating mode of an E1 channel on a CPOS interface.
Syntax
e1 e1-number unframed
undo e1 e1-number unframed
Default
E1 channels on a CPOS interface operate in framed mode.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
e1-number: Specifies the number of an E1 channel on the CPOS interface. The value range for this argument is 1 to 63.
Usage guidelines
E1 channels on CPOS interfaces support the unframed (clear channel) mode and the framed (channelized) mode.
· In unframed mode, an E1 channel can form a 2.048 Mbps serial interface without timeslot division. It is numbered in the format of interface-number/channel-number:0.
· In framed mode, all timeslots except timeslot 0 on the E1 channel can be bundled randomly to form serial interfaces.
Examples
# Set E1 channel 3 on CPos 1/2/2/1 to operate in unframed mode.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] e1 3 unframed
flag
Use flag to set an overhead byte for SONET/SDH frames.
Use undo flag to restore the default.
Syntax
flag c2 path-number c2-value
undo flag c2 path-number
flag { j0 | j1 path-number } { sdh | sonet } flag-value
undo flag { j0 | j1 path-number } { sdh | sonet }
Default
· The C2 byte value is 2 (hexadecimal).
· The J0 byte value for SDH is null.
· The J1 byte value for SDH is null.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
c2 path-number c2-value: Specifies the number of a path and the path signal label byte. The value range for the c2-value argument is 0 to ff in hexadecimal notation.
j0: Specifies the regenerator section trace message, which is a section overhead byte used to detect the continuity of the connection between two interfaces at the section layer.
j1 path-number: Specifies the path trace message, which is a higher-order path overhead byte used to detect the continuity of the connection between two interfaces at the path layer.
sdh: Specifies the SDH framing format.
sonet: Specifies the SONET framing format.
flag-value: Specifies the flag value for SDH or SONET frames. In SDH frames, the flag value is a string of 1 to 15 characters for both the J0 and J1 bytes. In SONET frames, the flag value is in the range of 0 to ff (hexadecimal) for the J0 byte and a string of 1 to 62 characters for the J1 byte.
Usage guidelines
SONET/SDH frames provide a variety of overhead bytes for operation and maintenance (OAM) such as layered management on transmission networks.
J1, J0 and C2 are used to support interoperability between devices from different countries, areas, and vendors.
J0 is a section overhead byte used for detecting the continuity of the connection between two interfaces at the section layer. J1 and C2 are higher-order path overhead bytes. The J1 byte is used for detecting the continuity of the connection between two interfaces at the path layer. The C2 byte is used for indicating the multiplexing structure of a VC frame and the property of payload.
Examples
# Set the J0 byte to aa on CPos 1/2/2/1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] flag j0 sdh aa
display controller cpos
frame-format
Use frame-format to set the framing format on a CPOS interface.
Use undo frame-format to restore the default framing format on a CPOS interface.
Syntax
frame-format sdh
undo frame-format
Default
The framing format on a CPOS interface is SDH.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
sdh: Specifies the SDH framing format.
Examples
# Set the framing format to SDH on CPos 1/2/2/1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] frame-format sdh
link-delay
Use link-delay to set the physical state change suppression interval on a CPOS interface.
Use undo link-delay to restore the default.
Syntax
link-delay seconds
undo link-delay
Default
Physical state change suppression is not configured.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
seconds: Sets the physical state change suppression interval in seconds. The value range is 0 to 86400.
Usage guidelines
When the physical state changes, a CPOS interface reports the event to the upper-layer modules, and generates log and SNMP notification messages. To reduce system overhead caused by frequent physical state changes, use this command to suppress physical state changes within an interval. The interface will ignore any changes that occur during each suppression interval. When the suppression interval expires, the interface will not report the change event or generate messages if the change is removed.
For example, the suppression interval starts when the interface changes from up to down. The interface reports the change event and generates messages if it is still down when the interval expires. The interface does not report the change event or generate messages if it is up when the interval expires.
This command suppresses link down events.
Examples
# Set the physical state change suppression interval to 8 seconds on CPos 1/2/2/1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] link-delay 8
loopback
Use loopback to enable loopback on a CPOS interface.
Use undo loopback to disable loopback on a CPOS interface.
Syntax
loopback { local | remote }
undo loopback
Default
Loopback is disabled on a CPOS interface.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
local: Enables internal loopback to test the physical interface.
remote: Enables external loopback to test the cable connected to the interface.
Usage guidelines
Loopback is intended for testing only. Disable the feature when the interface is operating correctly.
Examples
# Enable external loopback testing on CPos 1/2/2/1.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] loopback remote
multiplex mode
Use multiplex mode to set AUG multiplexing mode for a CPOS interface.
Use undo multiplex mode to restore the default AUG multiplexing mode for a CPOS interface.
Syntax
multiplex mode au-4
undo multiplex mode
Default
The AUG multiplexing mode is au-4 on a CPOS interface in SDH mode.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
au-4: Gets AUG through AU-4.
Usage guidelines
ETSI uses the AU-4 multiplexing scheme. This scheme multiplexes the lower-order payload to the VC-4 higher-order path. VC-4 plus an AU pointer forms an AU-4. This AU-4 can be synchronized and multiplexed to form one AUG.
When the CPOS interface is operating in SDH mode, you can multiplex AUG to AU-4 by using the multiplex mode command.
Countries and regions use different multiplexing schemes. You must use the same multiplexing scheme as the peer device. For example, the AU-4 multiplexing scheme is used in China.
Examples
# In SDH mode, multiplex AUG to AU-3.
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] frame-format sdh
[Sysname-Cpos 1/2/2/1] multiplex mode au-4
Related commands
frame-format
reset counters controller cpos
Use reset counters controller cpos to clear CPOS interface statistics.
Syntax
reset counters controller cpos [ interface-number ]
Views
User view
Predefined user roles
network-admin
mdc-admin
Parameters
cpos [ interface-number ]: Specifies a CPOS interface by its number. If you do not specify a CPOS interface, this command clears statistics for all CPOS interfaces.
Usage guidelines
Use this command to clear history statistics before you collect traffic statistics for a time period.
To display CPOS interface statistics, use the display controller cpos command.
Examples
# Clear statistics for CPos 1/2/2/1.
<Sysname> reset counters controller cpos 1/2/2/1
display controller cpos
shutdown
Use shutdown to shut down a CPOS physical interface.
Use undo shutdown to bring up a CPOS physical interface.
Syntax
shutdown
undo shutdown
Default
The CPOS physical interface is up.
Views
Predefined user roles
network-admin
mdc-admin
Usage guidelines
The shutdown command on the CPOS physical interface shuts down all E1/T1 channels and serial interfaces formed by timeslot bundles. As a result, they stop transmitting and receiving data. To bring them up, use the undo shutdown command on the CPOS physical interface.
Examples
<Sysname> system-view
[Sysname] controller cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] shutdown
threshold
Use threshold to configure the power for setting the SD or SF alarm threshold on a CPOS interface.
Use undo threshold to restore the default power for setting the SD or SF alarm threshold on a CPOS interface.
Syntax
threshold { sd sdvalue | sf sfvalue } *
undo threshold [ sd | sf ]
Default
The sdvalue argument is 6, and the sfvalue argument is 4.
Views
CPOS interface view
Predefined user roles
network-admin
mdc-admin
Parameters
sd: Specifies the SD alarm threshold.
sdvalue: Specifies the power for setting the SD alarm threshold. The threshold is 10e to the power of negative sdvalue (10e–sdvalue). The value range for this argument is 3 to 9.The greater the value, the lower the SD alarm threshold.
sf: Specifies the SF alarm threshold. The SF alarm threshold must be higher than the SD alarm threshold.
sfvalue: Specifies the power for setting the SF alarm threshold. The threshold is 10e to the power of negative sdvalue (10e–sfvalue). The value range for this argument is 3 to 9.The greater the value, the lower the SF alarm threshold.
Usage guidelines
SD and SF alarms indicate line performance. SF alarms are more severe than SD alarms.
· An SD alarm occurs if the bit error rate reaches the SD alarm threshold.
· An SF alarm occurs if the bit error rate reaches the SF alarm threshold.
Examples
# Set the SD threshold to 10e to the power of negative 4 (10e–4) on CPos 1/2/2/1.
<Sysname> system-view
[Sysname] interface cpos 1/2/2/1
[Sysname-Cpos 1/2/2/1] threshold sd 4
