When connected to a SONET/SDH router, the CPOS interface must use the slave clock because the SONET/SDH network clock is more precise. When the interface is directly connected to another CPOS interface with an optical fiber, you only need to configure them with different clock modes.

Examples

# Set the clock mode of interface CPOS 7/1/9 to master.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] clock master

controller cpos

Syntax

controller cpos cpos-number

View

System view

Default level

2: System level

Parameters

cpos-number: CPOS interface number.

Description

Use the controller cpos command to enter CPOS interface view.

Before you can configure a CPOS physical interface, you must enter its CPOS interface view.

Examples

# Enter the interface view of CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9]

default

Syntax

default

View

CPOS interface view

Default level

2: System level

Parameters

None

Description

Use the default command to restore the default settings for the CPOS interface.

This command might fail to restore the default settings for some commands for reasons such as command dependencies and 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 individually restore their default settings. If your restoration attempt still fails, follow the error message to resolve the problem.

CAUTION:

The default command might interrupt ongoing network services. Make sure you are fully aware of the impacts of this command when you perform it on a live network.

Examples

# Restore the default settings for CPOS interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] default

This command will restore the default settings. Continue? [Y/N]:y

description

Syntax

description text

undo description

View

CPOS interface view

Default level

2: System level

Parameters

text: Interface description, a case-sensitive character string of 1 to 80 characters. The description can contain letters, digits, special characters such as tilde (~), exclamation mark (!), at sign (@), number sign (#), dollar sign ($), percent (%), caret (^), ampersand (&), asterisk(*), brackets ({ }, ( ),[ ], < >), hyphen (-), underscore (_), plus (+), equal sign (=), vertical bar (|), backslash (\), colon (:), semicolon (;), quotation marks (", '), comma (,), period (.), and slash (/), spaces, and Unicode characters and symbols,

Description

Use the description command to set the description for the CPOS interface.

Use the undo description command to restore the default.

By default, the description of a CPOS interface is interface name Interface, for example, Cpos7/1/9 Interface.

Examples

# Set the description for CPOS interface CPOS 7/1/9 to CPOS-interface.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] description CPOS-interface

display controller cpos

Syntax

display controller cpos [ cpos-number ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

cpos-number: CPOS interface number. If no CPOS number is specified, the information about all CPOS interfaces is displayed.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display controller cpos command to display information about the state information of the specified CPOS physical interface or all CPOS physical interfaces if no CPOS interface number is specified.

The output covers the state information and alarms and errors that occurred on the regenerator section, multiplex section, and higher-order path.

The following table lists possible error types in the displayed output:

Table 1 Possible error types

Field	Description
NJE	Negative justification event
PJE	Positive justification event
BIP	Bit-interleaved parity
REI	Remote error indication

Related commands: display controller cpos e1, display controller cpos e3, display controller cpos t1, and display controller cpos t3.

Examples

# Display the information of interface CPOS 2/1/9 where the SDH framing format and AU-4 multiplexing are adopted.

<Sysname> display controller Cpos 2/1/9

Cpos2/1/9 current state: DOWN

Description : Cpos2/1/9 Interface

Port connector type: No connector

Physical layer is packet over SDH

Port speed type: STM-1

Multiplex mode: AU-4

Loopback is not set

Clock source: Slave

Clock grade: Quality unknown(existing synchronization network)

BER thresholds:

SD: 10e-6 SF: 10e-3

Regenerator section layer:

J0(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J0(RX): ""

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 5067565197 BIP(B1)

Multiplex section layer:

Alarm: NONE

Error: 8449618991 BIP(B2), 19434123677 REI(M1)

Higher order path layer:

C2(TX): 0x2 C2(RX): 0x6d

S1S0(TX): 0x2 S1S0(RX): 0x2

J1(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J1(RX): ""

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 1689232091 BIP(B3), 9 REI(G1)

0 PJE, 1 NJE

Cpos2/1/9 CE1 1 (C12 1-1-1-1) is DOWN

Frame-format NO-CRC4, clock slave, loopback not set

Cpos2/1/9 CE1 2 (C12 1-2-1-1) is DOWN

Frame-format NO-CRC4, clock slave, loopback not set

......

(Some information about E1 channels is not shown.)

Cpos2/1/9 CE1 62 (C12 1-2-7-3) is DOWN

Frame-format NO-CRC4, clock slave, loopback not set

Cpos2/1/9 CE1 63 (C12 1-3-7-3) is DOWN

Frame-format NO-CRC4, clock slave, loopback not set

Table 2 Output description

Field	Description
Cpos2/1/9 current state	Current physical state of the CPOS interface.
Description	Interface description.
Port connector type	Optical module type.
Physical layer	Framing format of the interface.
Port speed type	Rate of the interface.
Multiplex mode	Multiplexing path of the interface.
Loopback	Loopback mode.
Clock source	Clock mode of the interface.
Clock grade	Clock grade of the interface.
BER thresholds	Signal degrade (SD) and signal fail (SF) thresholds of the interface.
Regenerator section layer	Statistics about alarms and errors for the regenerator section.
Multiplex section layer	Statistics about alarms and errors for the multiplex section.
Higher order path layer	Statistics about alarms and errors for the higher-order path.
Alarm	Alarm statistics.
Error	Error statistics.
J0(TX)	The sent J0 overhead byte.
J0(RX)	The received J0 overhead byte.
C2(TX)	The sent signal label byte.
C2(RX)	The received signal label byte.
J1(TX)	The sent J1 overhead byte.
J1(RX)	The received J1 overhead byte.
Cpos2/1/9 CE1 1 (C12 1-1-1-1) is DOWN	The current physical state of E1 channel 1 on CPOS interface 2/1/9 is down.
Frame-format NO-CRC4, clock slave, loopback not set	Physical layer information of E1 channels: the framing format is set to NO-CRC4, the clock mode is slave, and loopback is disabled.

display controller cpos e1

Syntax

display controller cpos cpos-number e1 e1-number [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

cpos-number: CPOS interface number.

e1-number: Number of an E1 channel on a CPOS interface, which ranges from 1 to 63.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display controller cpos e1 command to display the physical layer configuration information of the specified E1 channel on the specified CPOS interface.

Different from the display controller cpos command, this command can display the error and alarm information of lower-order paths and E1 frames.

Examples

# Display the status information of E1 channel 1 on interface CPOS 4/1/9.

<Sysname> display controller Cpos 4/1/9 e1 1

Cpos4/1/9 current state: UP

Description : Cpos4/1/9 Interface

Port connector type: No connector

Physical layer is packet over SDH

Port speed type: STM-1

Multiplex mode: AU-4

Loopback is not set

Clock source: Slave

Clock grade: Quality unknown(existing synchronization network)

BER thresholds:

SD: 10e-6 SF: 10e-4

Regenerator section layer:

J0(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J0(RX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 12611528540 BIP(B1)

Multiplex section layer:

Alarm: NONE

Error: 21025283132 BIP(B2), 48358145279 REI(M1)

Higher order path layer:

C2(TX): 0x2 C2(RX): 0x2

S1S0(TX): 0x2 S1S0(RX): 0x2

J1(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J1(RX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 131 BIP(B3), 152 REI(G1)

0 PJE, 3172 NJE

Lower order path layer (C12 1-1-1-1):

C2(TX): 0x02 C2(RX): 0x02

J2(TX): "SR8800"

J2(RX): "SR8800"

Alarm: NONE

Error: 1051165959 BIP

Cpos4/1/9 CE1 1 (C12 1-1-1-1) is UP

Frame-format NO-CRC4, clock slave, loopback not set

Alarm: LOF RAI

Table 3 Output description

Field	Description
Cpos4/1/9 current state	Current physical state of the CPOS interface.
Description	Interface description.
Port connector type	Optical module type.
Physical layer	Framing format of the interface.
Port speed type	Rate of the interface.
Multiplex mode	Multiplex mode of the interface.
Loopback	Loopback mode of the interface.
Clock source	Clock mode of the interface.
Clock grade	Clock grade of the interface.
BER thresholds	SD and SF thresholds of the interface.
Regenerator section layer	Statistics about alarms and errors for the regenerator section.
Multiplex section layer	Statistics about alarms and errors for the multiplex section.
Higher order path layer	Statistics about alarms and errors for the higher-order path.
Alarm	Alarm statistics.
Error	Error statistics.
J0(TX)	The sent J0 overhead byte.
J0(RX)	The received J0 overhead byte.
C2(TX)	The sent signal label byte.
C2(RX)	The received signal label byte.
J1(TX)	The sent J1 overhead byte.
J1(RX)	The received J1 overhead byte.
Lower order path layer	Error and alarm information of lower-order paths.
J2(TX)	The sent J2 overhead byte.
J2(RX)	The received J2 overhead byte.
Cpos4/1/9 CE1 1 (C12 1-1-1-1) is UP	The current physical state of E1 channel 1 on interface CPOS 4/1/9 is up.
Frame-format	Framing format of E1 channel.
clock	Clock mode of E1 channel.

display controller cpos e3

Syntax

display controller cpos cpos-number e3 e3-number [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

cpos-number: CPOS interface number.

e3-number: Number of an E3 channel on the specified CPOS interface, in the range of 1 to 3.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display controller cpos e3 command to display the physical layer configuration of the specified E3 channel on the specified CPOS interface.

Compared with the display controller cpos command, this command can display the error and alarm information of lower-order paths and E3 frames.

Table 4 Possible error types

Field	Description
OOF	Out of frame (OOF) errors, generated upon receipt of E3 indicating that error occurs to the framing bit of the received E3/T3 frames.
LOS	Loss of signal (LOS) errors, generated upon detection of loss of input signal.
LOF	Loss of frame (LOF) errors, generated when detected consecutive LOS errors exceed the allowed threshold.
AIS	Alarm indication signal (AIS) alarms, including those generated by the local end upon detection of severe alarms like LOS and those received from the upstream device.
RAI	Remote alarm indication alarms, received from the downstream device detecting alarms.
MS_AIS	Multiplex section alarm indication signal.
FERR	Framing bit errors.
LCV	Line coding violation counts. LCV occurs when line code violates HDB3 (E3) or B3ZS (T3) coding rules.
PERR	Parity error event counts, available only for T3. They are generated when the P1 and P2 bits in T3 frames are not identical.
FEBE	Far-end block error counts, available only for T3.
HCS	Header check sequence error counts, namely, CRC errors in HDLC frames.

Examples

# Display the state information of E3 channel 1 on interface CPOS 7/1/9.

<Sysname> display controller Cpos 7/1/9 e3 1

Cpos7/1/9 current state: UP

Description : Cpos7/1/9 Interface

Port connector type: OC12/STM_4_IR_1_SFP

Physical layer is packet over SDH

Port speed type: STM-1

Multiplex mode: AU-4

Loopback is not set

Clock source: Master

Clock grade: DNU(Do not use for synchronization)

BER thresholds:

SD: 10e-6 SF: 10e-4

Regenerator section layer:

J0(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J0(RX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 12611528540 BIP(B1)

Multiplex section layer:

Alarm: NONE

Error: 21025283132 BIP(B2), 48358145279 REI(M1)

Higher order path layer:

C2(TX): 0x2 C2(RX): 0x2

S1S0(TX): 0x2 S1S0(RX): 0x2

J1(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J1(RX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 131 BIP(B3), 152 REI(G1)

0 PJE, 3172 NJE

Cpos4/1/9 E3 2 is UP

Frame-format: Unframed, clock source: Slave, loopback not set

Alarm: none

Error:0 BIP

For the output description, see Table 3.

display controller cpos t1

Syntax

display controller cpos cpos-number t1 t1-number [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

cpos-number: CPOS interface number.

t1-number: Number of a T1 channel on a CPOS interface, which ranges from 1 to 84.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display controller cpos t1 command to display the physical layer configuration information of a T1 channel on a CPOS interface.

Different from the display controller cpos command, this command can display the error and alarm information of lower-order paths and T1 frames.

Examples

# Display the status information of T1 channel 1 on interface CPOS 7/1/9.

<Sysname> display controller Cpos 7/1/9 t1 1

Cpos7/1/9 current state: UP

Description : Cpos7/1/9 Interface

Port connector type: No connector

Physical layer is packet over SDH

Port speed type: STM-1

Multiplex mode: AU-4

Loopback is not set

Clock source: Slave

Clock grade: Quality unknown(existing synchronization network)

BER thresholds:

SD: 10e-6 SF: 10e-3

Regenerator section layer:

J0(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J0(RX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 6434556 BIP(B1)

Multiplex section layer:

Alarm: NONE

Error: 14660985 BIP(B2), 33720231 REI(M1)

Higher order path layer:

C2(TX): 0x2 C2(RX): 0x2

S1S0(TX): 0x2 S1S0(RX): 0x2

J1(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J1(RX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 2232693 BIP(B3), 9 REI(G1)

0 PJE, 1 NJE

Lower order path layer(C11 1-1-1-1):

C2(TX): 0x02 C2(RX): 0x02

J2(TX): "SR8800"

J2(RX): "SR8800"

Alarm: NONE

Error: 245264 BIP

Cpos7/1/9 T1 1 (C11 1-1-1-1) is UP

Frame-format none, clock slave, Loopback not set

Alarm: LOF RAI

Table 5 Output description

Field	Description
Cpos7/1/9 current state	Current physical state of the CPOS interface.
Description	Interface description.
Port connector type	Optical module type.
Physical layer	Framing format of the interface.
Port speed type	Rate of the interface.
Multiplex mode	Multiplex mode of the interface.
Loopback	Loopback mode.
Clock source	Clock mode of the interface.
Clock grade	Clock grade of the interface.
BER thresholds	SD and SF thresholds of the interface.
Regenerator section layer	Statistics about alarms and errors for the regenerator section.
Multiplex section layer	Statistics about alarms and errors for the multiplex section.
Higher order path layer	Statistics about alarms and errors for the higher-order path.
Alarm	Alarm statistics.
Error	Error statistics.
J0(TX)	The sent J0 overhead byte.
J0(RX)	The received J0 overhead byte.
C2(TX)	The sent signal label byte.
C2(RX)	The received signal label byte.
J1(TX)	The sent J1 overhead byte.
J1(RX)	The received J1 overhead byte.
Lower order path layer	Error and alarm information of lower-order paths.
J2(TX)	The sent J2 overhead byte.
J2(RX)	The received J2 overhead byte.
Cpos7/1/9 T1 1 (C11 1-1-1-1) is UP	The physical state of T1 channel 1 on interface CPOS 7/1/9 is up.
Frame-format	Framing format of T1 channel.
clock	Clock mode of T1 channel.

display controller cpos t3

Syntax

display controller cpos cpos-number t3 t3-number [ | { begin | exclude | include } regular-expression ]

cpos-number: CPOS interface number.

t3-number: Number of a T3 channel on the specified CPOS interface, in the range of 1 to 3.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display controller cpos t3 command to display the physical layer configuration of the specified T3 channel on the specified CPOS interface.

Compared with the display controller cpos command, this command can display the error and alarm information of lower-order paths and E3 frames. For possible error and alarm types, see Table 4.

Examples

# Display the state information of T3 channel 1 on interface CPOS 7/1/9.

<Sysname> display controller Cpos 7/1/9 t3 1

Cpos7/1/9 current state: UP

Description : Cpos7/1/9 Interface

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: Master

Clock grade: Quality unknown(existing synchronization network)

BER thresholds:

SD: 10e-4 SF: 10e-4

Regenerator section layer:

J0(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J0(RX): "SR8800"

53 52 38 38 30 30 01 01 01 01 01 01 01 01 01 00

Alarm: NONE

Error: 45450254 BIP(B1)

Multiplex section layer:

Alarm: NONE

Error: 75752703 BIP(B2), 174230175 REI(M1)

Higher order path layer:

C2(TX): 0x2 C2(RX): 0x2

S1S0(TX): 0x2 S1S0(RX): 0x2

J1(TX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

J1(RX): "SR8800"

53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00

Alarm: NONE

Error: 30271679 BIP(B3), 93 REI(G1)

78458 PJE, 153712 NJE

Cpos4/1/10 CT3 3 is DOWN

Frame-format CBIT, clock master, loopback not set

Alarm: RED OOF LOF

Error:2 BIP

For the output description, see Table 3.

e1 channel-set

Syntax

e1 e1-number channel-set set-number timeslot-list range

undo e1 e1-number channel-set set-number

View

CPOS interface view

Default level

2: System level

Parameters

e1-number: Number of an E1 channel on the CPOS interface, which ranges from 1 to 63.

set-number: Channel set number, which ranges from 0 to 30.

timeslot-list range: Specifies a list of timeslots assigned to the channel set. While specifying timeslots, you can specify a single timeslot in the form of number, a timeslot range in the form of number1-number2, or multiple discrete timeslots in the form of number1,number2-number3. A timeslot can take a value in the range of 1 to 31.

Description

Use the e1 channel-set command to bundle timeslots on the specified E1 channel into the specified channel set and generate the corresponding serial interface.

Use the undo e1 channel-set command to remove the specified channel set and the corresponding serial interface.

By default, the E1 channel operates in framed mode.

When the E1 channel is channelized, its timeslot 0 is used for synchronization and the other 31 timeslots can be bundled to form one or multiple serial interfaces. These serial interfaces are numbered in the form of interface-number/channel-number:channel-set-number, where the interface number is separated from the channel number by a forward slash and the channel-number is separated from the channel set number by a colon (:).

IMPORTANT:

Make sure the local end has the same timeslot bundling settings as the remote end for successful communication.

Related commands: e1 unframed.

Examples

# Bundle timeslots on E1 channel 63.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e1 63 channel-set 1 timeslot-list 1-31

# Enter the view of the serial interface corresponding to the timeslot bundle.

[Sysname-Cpos7/1/9] quit

[Sysname] interface Serial 7/1/9/63:1

[Sysname-Serial7/1/9/63:1]

e1 set clock

Syntax

e1 e1-number set clock { master | slave }

undo e1 e1-number set clock

View

CPOS interface view

Default level

2: System level

Parameters

e1-number: Number of an E1 channel on the CPOS interface, which ranges from 1 to 63.

master: Sets the clock mode of the E1 channel to master.

slave: Sets the clock mode of the E1 channel to slave.

Description

Use the e1 set clock command to set the clock mode of the E1 channel.

Use the undo e1 set clock command to restore the default, the slave mode.

E1 channels on the same CPOS physical interface can use different clock modes, depending on the connected network devices. For example, when connected to a SONET/SDH router, an E1 channel should use the slave clock mode, and when directly connected to another device with an optical fiber, it can use either mode so long as the mode is different from the one used at the opposite end.

NOTE:

· On a CPOS interface, the clock modes of E1 channels are independent of one another.

· H3C recommends that you configure the clock mode of an E1 channel the same as the global clock mode.

Examples

# Set the clock mode of E1 channel 1 to master.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e1 1 set clock master

e1 set flag

Syntax

e1 e1-number set flag c2 c2-value

undo e1 e1-number set flag c2

e1 e1-number set flag j2 { sdh | sonet } j2-string

undo e1 e1-number set flag j2 { sdh | sonet }

View

CPOS interface view

Default level

2: System level

Parameters

e1-number: E1 channel number, which ranges from 1 to 63.

c2: Specifies the low-order channel signal tag byte (C2).

c2-value: Low-order channel signal flag byte (C2) to be set, one byte in length and in the range of 0x0 to 0x7 (except 0x5).

j2: Specifies the low-order channel trace byte.

sdh: Specifies the trace byte in SDH format.

sonet: Specifies the trace byte in SONET format.

j2-string: Low-order channel trace byte to be set, a string of 1 to 15 characters (in SDH format) or of 1 to 62 characters (in SONET format).

Description

Use the e1 set flag command to set the overhead bytes for an E1 channel.

Use the undo e1 set flag command to restore the default E1 channel overhead bytes.

The default value of C2 is 0x02 (in hexadecimal). The initial value (for example, the value when the router is initially powered on) of J2 is “SR8800”, but it changes to null (the default value) after a change in the framing format.

Examples

# Set C2 to 0x7 for the E1 channel numbered 3 on the CPOS 7/1/9 interface.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e1 3 set flag c2 7

e1 set frame-format

Syntax

e1 e1-number set frame-format { crc4 | no-crc4 }

undo e1 e1-number set frame-format

View

CPOS interface view

Default level

2: System level

Parameters

e1-number: Number of an E1 channel on the CPOS interface, which ranges from 1 to 63.

crc4: Sets the framing format to CRC4.

no-crc4: Sets the framing format to no-CRC4.

Description

Use the e1 set frame-format command to set the framing format of an E1 channel.

Use the undo e1 set frame-format command to restore the default, the no-CRC4 framing format.

An E1 channel working in unframed mode does not support framing format setting.

Related commands: e1 unframed.

Examples

# Set E1 channel 1 to use framing format CRC4.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e1 1 set frame-format crc4

e1 set loopback

Syntax

e1 e1-number set loopback { local | payload | remote }

undo e1 e1-number set loopback

View

CPOS interface view

Default level

2: System level

Parameters

e1-number: Number of an E1 channel on the CPOS interface, which ranges from 1 to 63.

local: Enables internal loopback on the E1 channel.

payload: Enables external payload loopback on the E1 channel.

remote: Enables external loopback on the E1 channel.

Description

Use the e1 set loopback command to configure the loopback mode of the E1 channel.

Use the undo e1 set loopback command to remove the loopback.

By default, loopback is disabled on E1 channels.

You may test E1 channels in different depths by using the loopback command with different keywords.

In an internal loopback, data of the sender is directly looped to the receiver.

In an external payload loopback, data received by the receiver is looped back at the E1 framer as payload.

In an external loopback, data received by the receiver is looped back directly without passing through the E1 framer.

Related commands: display controller cpos e1.

Examples

# Enable external payload loopback on E1 channel 1.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e1 1 set loopback payload

e1 shutdown

Syntax

e1 e1-number shutdown

undo e1 e1-number shutdown

View

CPOS interface view

Default level

2: System level

Parameters

e1-number: Number of an E1 channel on the CPOS interface, which ranges from 1 to 63.

Description

Use the e1 shutdown command to shut down an E1 channel.

Use the undo e1 shutdown command to bring up an E1 channel.

By default, E1 channels are up.

Shutting down an E1 channel also shuts down the serial interfaces that are formed on it, if any.

Examples

# Shut down E1 channel 1.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e1 1 shutdown

e1 unframed

Syntax

e1 e1-number unframed

undo e1 e1-number unframed

View

CPOS interface view

Default level

2: System level

Parameters

e1-number: Number of an E1 channel on the CPOS interface, which ranges from 1 to 63.

Description

Use the e1 unframed command to set an E1 channel on the CPOS interface to operate in unframed mode, E1 mode.

Use the undo e1 unframed command to restore the default.

By default, the E1 channel operates in framed mode.

So far, E1 channels on CPOS interfaces support the following operating modes: clear channel (also known as “unframed”) and channelized (also known as “framed”).

· In unframed mode, an E1 channel can form a 2.048 Mbps serial interface without timeslot division. It is named serial slot/port/e1-number:0.

· In framed mode, all timeslots except timeslot 0 on the E1 channel can be bundled arbitrarily to form serial interfaces.

Examples

# Set E1 channel 3 on interface CPOS 7/1/9 to operate in unframed mode.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e1 3 unframed

e3 framed

Syntax

e3 e3-number framed

undo e3 e3-number framed

View

CPOS interface view

Default level

2: System level

Parameters

e3-number: Number of an E3 channel on the CPOS interface, in the range of 1 to 3.

Description

Use the e3 framed command to create a serial interface corresponding to the framed E3 channel.

Use the undo e3 framed command to remove a serial interface.

By default, no serial interface is created.

The router does not support adding a serial interface corresponding to the E3 channel to the specified MP-group.

Examples

# Set the E3 channel 1 of interface CPOS 7/1/9 as framed and create a serial interface corresponding to the channel.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e3 1 framed

e3 set clock

Syntax

e3 e3-number set clock { master | slave }

undo e3 e3-number set clock

View

CPOS interface view

Default level

2: System level

Parameters

e3-number: Number of an E3 channel on the CPOS interface, in the range of 1 to 3.

master: Sets the clock mode to master.

slave: Sets the clock mode to slave.

Description

Use the e3 set clock command to set a clock mode for the E3 channel.

Use the undo e3 set clock command to restore the default.

By default, the clock mode of an E3 channel is slave.

You can configure different clock modes for different E3 channels depending on the device each E3 channel is connected to. For example, when an E3 channel is connected to a SONET/SDH device, you should set its clock mode to slave; when it is directly fiber-connected to a router, you can set its clock mode to master or slave, so long as it is different from the one used at the remote end.

NOTE:

· On a CPOS interface, the clock modes of E3 channels are independent of one another.

· H3C recommends that you configure the clock mode of an E3 channel the same as the global clock mode.

Examples

# Configure the clock mode of E3 channel 1 on interface CPOS 7/1/9 as master.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e3 1 set clock master

e3 set loopback

Syntax

e3 e3-number set loopback { local | payload | remote }

undo e3 e3-number set loopback

View

CPOS interface view

Default level

2: System level

Parameters

e3-number: Number of an E3 channel on the current CPOS interface, in the range of 1 to 3.

local: Enables internal loopback on the E3 channel.

payload: Enables external payload loopback on the E3 channel.

remote: Enables external loopback on the E3 channel. This keyword is not supported.

Description

Use the e3 set loopback command to enable a type of loopback on the specified E3 channel.

Use the undo e3 set loopback command to disable loopback.

By default, loopback is disabled.

You can troubleshoot an E3 channel by placing it in a loopback. The following are loopback modes available for you to test an E3 channel to different depths:

· In an internal loopback, transmitted data loops back to the receiver end internally without being sent to the line.

· In an external payload loopback, transmitted data loops over the far end and back to the receiver end after through the E3 framer.

· In an external loopback, transmitted data loops over the far end and back to the receiver end before going through the E3 framer.

Related commands: display controller cpos e3.

Examples

# Enable external payload loopback on E3 channel 1 on interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e3 1 set loopback payload

e3 set national-bit

Syntax

e3 e3-number set national-bit { 0 | 1 }

undo e3 e3-number set national-bit

View

CPOS interface view

Default level

2: System level

Parameters

e3-number: Number of an E3 channel on the current CPOS interface, in the range of 1 to 3.

0: Sets the national bit to 0 for national communication.

1: Sets the national bit to 1 for international communication.

Description

Use the e3 set national-bit command to set the national bit used on the specified E3 channel.

Use the undo e3 set national-bit command to restore the default.

By default, the national bit of an E3 channel is 1.

This command is unavailable when an E3 channel works in unframed mode.

Related commands: using e3.

Examples

# Set the national bit of E3 channel 1 on interface CPOS 7/1/9 to 1.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e3 1 set national-bit 1

e3 shutdown

Syntax

e3 e3-number shutdown

undo e3 e3-number shutdown

View

CPOS interface view

Default level

2: System level

Parameters

e3-number: Number of an E3 channel on the current CPOS interface, in the range of 1 to 3.

Description

Use the e3 shutdown command to shut down the specified E3 channel.

Use the undo e3 shutdown command to bring up the specified E3 channel.

By default, an E3 channel is up.

Examples

# Shut down E3 channel 1 on interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] e3 1 shutdown

flag

Syntax

flag { c2 path-number c2-value | s1 s1-value | s1s0 path-number s1s0-value }

undo flag { c2 path-number | s1 | s1s0 path-number }

flag { j0 | j1 path-number } { sdh | sonet } flag-value

undo flag { j0 | j1 path-number } { sdh | sonet }

View

CPOS interface view

Default level

2: System level

Parameters

j0 flag-value: 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. For SDH frames, flag-value is a string of 1 to 15 characters; for SONET frames, flag-value is in the range of 0 to FF on subinterface cards PIC-CL1G8L and PIC-CL2G8, and 0 to 7F on subinterface cards PIC-CLF2G8L and PIC-CLF4G8L. For SONET frames, the default value of j0 is 0x01. For SDH frames, the initial value (for example, the value when the router is initially powered on) of j0 is SR8800, and the value changes to null (the default value) after a change in the framing format.

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. For SDH frames, flag-value is a string of 1 to 15 characters; for SONET frames, flag-value is a string of 1 to 62 characters. For SONET frames, the default value of j1 is 0x01. For SDH frames, the initial value (for example, the value when the router is initially powered on) of j1 is SR8800, and the value changes to null (the default value) after a change in the framing format.

sdh: Specifies the framing format as Synchronous Digital Hierarchy (SDH).

sonet: Specifies the framing format as Synchronous Optical Network (SONET).

c2 path-number c2-value: The path-number argument is the number of a path. The c2-value argument specifies the path signal label byte; it ranges from 00 to FF (in hexadecimal format) and defaults to 0x02.

s1 s1-value: Specifies the synchronization status byte. The default value is 0x0f.

s1s0 path-number s1s0-value: The path-number argument is the number of a path; the s1s0-value argument specifies the AU type and TU type. For the framing format of SONET, the default value of s1s0 is 0x0. For the framing format of SDH, the default value of s1s0 is 0x2. You do not need to set the value of s1s0 manually, because it is changed automatically with the framing format.

Description

Use the flag command to set the overhead byte of SONET/SDH frames.

Use the undo flag command to restore the default.

SONET/SDH frames provide a variety of overhead bytes for operation, administration, and maintenance (OAM) such as layered management on transmission networks.

j1, j0, c2, s1s0, and s1 are used to support interoperability between network devices in different countries and areas or from different 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.

S1 is the synchronization status byte. The value of S1 indicates the ITU-T clock quality, by which the device can judge the quality of received clock signals and determine whether to switch to a higher-quality clock source. A smaller value indicates higher clock precision.

S1S0 are two bits in the H1 byte. They are used by ITU to indicate the AU-n/TU-n type. S1S0 must be set to 2 for AU-4, AU-3, and TU-3.

Related commands: display controller cpos.

Examples

# Set J0 to aa on interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] flag j0 sonet aa

frame-format

Syntax

frame-format { sdh | sonet }

undo frame-format

View

CPOS interface view

Default level

2: System level

Parameters

sdh: Sets framing format to synchronous digital hierarchy (SDH).

sonet: Sets framing format to synchronous optical network (SONET).

Description

Use the frame-format command to configure framing on the CPOS interface.

Use the undo frame-format command to restore the default, the SDH framing format.

NOTE:

The overhead bytes are restored to defaults after a change in the framing format.

Related commands: flag.

Examples

# Set the framing format on interface CPOS 7/1/9 to SONET.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] frame-format sonet

loopback

Syntax

loopback { local | remote }

undo loopback

View

CPOS interface view

Default level

2: System level

Parameters

local: Internal loopback, used for testing the physical interface itself.

remote: External loopback, used for testing the cable connected to the interface.

Description

Use the loopback command to configure the loopback mode on the CPOS interface.

Use the undo loopback command to remove a loopback.

By default, loopback is disabled.

Loopback is intended for test use. Disable it otherwise.

Examples

# Enable external loopback testing on interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] loopback remote

multiplex mode

Syntax

multiplex mode { au-3 | au-4 }

undo multiplex mode

View

CPOS interface view

Default level

2: System level

Parameters

au-3: Gets AUG through AU-3.

au-4: Gets AUG through AU-4.

Description

Use the multiplex mode command to set AUG multiplexing mode.

Use the undo multiplex mode command to restore the default, which is au-4 for SDH and au-3 for SONET.

SDH provides the following payload mapping/multiplexing solutions: ANSI and ETSI.

· ANSI uses the AU-3 multiplexing scheme, where the lower-order payload is aggregated into the VC-3 higher-order path. VC-3 plus an AU pointer forms AU-3. Three such AU-3s can be synchronized and multiplexed to form one AUG.

· ETSI uses the AU-4 multiplexing scheme, where the lower-order payload is aggregated into 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 choose to multiplex AUG to AU-4 or AU-3 by using the multiplex mode command. When the CPOS interface is operating in SONET mode, AUG can be multiplexed only to AU-3.

Related commands: frame-format.

Examples

# In SDH mode, multiplex AUG to AU-3.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] frame-format sdh

[Sysname-Cpos7/1/9] multiplex mode au-3

reset counters controller cpos

Syntax

reset counters controller cpos interface-number

View

User view

Default level

2: System level

Parameters

interface-number: Interface number.

Description

Use the reset counters controller cpos command to clear the controller counter of a CPOS interface.

You can use the display controller cpos command to display the controller counter.

NOTE:

The reset counters interface command clears the controller counters of all interfaces. To clear the controller counters of individual CPOS interfaces, use the reset counters controller cpos command.

Examples

# Clear the controller counter of CPOS 7/1/9.

<Sysname> reset counters controller Cpos 7/1/9

shutdown

Syntax

shutdown

undo shutdown

View

CPOS interface view

Default level

2: System level

Parameters

None

Description

Use the shutdown command to shut down the CPOS physical interface.

Use the undo shutdown command to bring up the CPOS physical interface.

By default, CPOS physical interfaces are enabled.

The shutdown command on the CPOS physical interface shuts down all E1/T1 channels and serial interfaces formed by timeslot bundles. They stop transmitting and receiving data as a result. To bring up them, perform the undo shutdown command on the CPOS physical interface.

Examples

# Shut down CPOS physical interface 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] shutdown

t1 channel-set

Syntax

t1 t1-number channel-set set-number timeslot-list range [ speed { 56k | 64k } ]

undo t1 t1-number channel-set set-number

View

CPOS interface view

Default level

2: System level

Parameters

t1-number: Number of a T1 channel on the CPOS interface, which ranges from 1 to 84.

set-number: Channel set number in the range of 0 to 23.

speed: Specifies how timeslots are bundled. If the 56k keyword applies, timeslots form an N × 56 kbps bundle. If 64k applies, timeslots form an N × 64 kbps bundle. If the speed is not specified, the default 64 kbps applies.

Description

Use the t1 channel-set command to bundle timeslots on the specified T1 channel into the specified channel set and generate the corresponding serial interface.

Use the undo t1 channel-set command to remove the specified channel set and the corresponding serial interface.

By default, the T1 channel operates in framed mode.

The serial interface formed by a timeslot bundle is numbered in the form of interface number/channel number:channel set number.

IMPORTANT:

Make sure the local end has the same timeslot bundling settings as the remote end for successful communication.

Related commands: t1 unframed.

Examples

# Bundle timeslots on T1 channel 1.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t1 1 channel-set 1 timeslot-list 1-23

# Enter the view of the serial interface corresponding to the timeslot bundle.

[Sysname-Cpos7/1/9] quit

[Sysname] interface Serial 7/1/9/1:1

[Sysname-Serial7/1/9/1:1]

t1 set clock

Syntax

t1 t1-number set clock { master | slave }

undo t1 t1-number set clock

View

CPOS interface view

Default level

2: System level

Parameters

t1-number: Number of a T1 channel on the CPOS, which ranges from 1 to 84.

master: Sets the clock mode of the T1 channel to master.

slave: Sets the clock mode of the T1 channel to slave.

Description

Use the t1 set clock command to configure the clock mode of the T1 channel.

Use the undo t1 set clock command to restore the default, the slave mode.

T1 channels on the same CPOS physical interface can use different clock modes, depending on the connected network devices. For example, when connected to a SONET/SDH router, a T1 channel should use the slave clock mode, and when directly connected to another device with optical fibers, it can use either mode so long as the mode is different from the one used at the opposite end.

NOTE:

· On a CPOS interface, the clock modes of T1 channels are independent of one another.

· H3C recommends that you configure the clock mode of a T1 channel the same as the global clock mode.

Examples

# Set the clock mode of T1 channel 1 to master.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t1 1 set clock master

t1 set flag

Syntax

t1 t1-number set flag c2 c2-value

undo t1 t1-number set flag c2

t1 t1-number set flag j2 { sdh | sonet } j2-string

undo t1 t1-number set flag j2 { sdh | sonet }

View

CPOS interface view

Default level

2: System level

Parameters

t1-number: T1 channel number, which ranges from 1 to 84.

c2: Specifies the low-order channel signal tag byte (C2).

c2-value: Low-order channel signal tag byte (C2) to be set, one byte in length and in the range of 0x0 to 0x7 (except 0x5).

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: Low-order channel trace byte (J2) to be set, a string of 1 to 15 characters (in SDH format) or of 1 to 62 characters (in SONET format).

Description

Use the t1 set flag command to set the overhead bytes for a T1 channel.

Use the undo t1 set flag command to restore the default T1 channel overhead bytes.

The default value of C2 is 0x02. The initial value (for example, the value when the router is initially powered on) of J2 is “SR8800” and the value changes to null (the default value) after a change in the framing format.

Examples

# Set C2 to 0x7 for the T1 channel numbered 3 of CPOS 7/1/9 interface.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t1 3 set flag c2 7

t1 set frame-format

Syntax

t1 t1-number set frame-format { esf | sf }

undo t1 t1-number set frame-format

View

CPOS interface view

Default level

2: System level

Parameters

t1-number: Number of a T1 channel on the CPOS interface, which ranges from 1 to 84.

esf: Sets the T1 channel to use the extended super frame (ESF) format.

sf: Sets the T1 channel to use the super frame (SF) format.

Description

Use the t1 set frame-format command to set the framing format for T1 channel.

Use the undo t1 set frame-format command to restore the default, the ESF framing format.

A T1 channel working in unframed mode does not support framing format setting.

Related commands: t1 unframed.

Examples

# Set the framing format of T1 channel 1 to SF.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t1 1 set frame-format sf

t1 set loopback

Syntax

t1 t1-number set loopback { local | payload | remote }

undo t1 t1-number set loopback

View

CPOS interface view

Default level

2: System level

Parameters

t1-number: Number of a T1 channel on the CPOS interface, which ranges from 1 to 84.

local: Enables internal loopback.

payload: Enables external payload loopback.

remote: Enables external loopback.

Description

Use the t1 set loopback command to configure the loopback mode of the T1 channel.

Use the undo t1 set loopback command to remove a loopback.

By default, loopback is disabled.

Loopback is intended for test use. Disable it otherwise.

Related commands: display controller cpos t1.

Examples

# Enable external loopback on T1 channel 1.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t1 1 set loopback payload

t1 shutdown

Syntax

t1 t1-number shutdown

undo t1 t1-number shutdown

View

CPOS interface view

Default level

2: System level

Parameters

t1-number: Number of a T1 channel on the CPOS interface, which ranges from 1 to 84.

Description

Use the t1 shutdown command to shut down a T1 channel.

Use the undo t1 shutdown command to bring up a T1 channel.

By default, T1 channels are enabled.

Shutting down a T1 channel shuts down the serial interfaces formed on it, if any.

Examples

# Shut down T1 channel 1.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t1 1 shutdown

t1 unframed

Syntax

t1 t1-number unframed

undo t1 t1-number unframed

View

CPOS interface view

Default level

2: System level

Parameters

t1-number: Number of a T1 channel on the CPOS interface, which ranges from 1 to 84.

Description

Use the t1 unframed command to set a T1 channel on the CPOS interface to operate in unframed mode.

Use the undo t1 unframed command to restore the default.

By default, the T1 channel operates in framed mode.

Like E1 channels, T1 channels on CPOS interfaces support unframed mode and framed mode.

· In unframed mode, a T1 channel can form a 1.544 Mbps serial interface without timeslot division. This interface is named serial slot/card/t1-number:0.

· In framed mode, 24 timeslots of T1 channel can be bound and used as serial interfaces.

Examples

# Set T1 channel 3 on interface CPOS 7/1/9 to operate in unframed mode.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t1 3 unframed

t3 framed

Syntax

t3 e3-number framed

undo t3 e3-number framed

View

CPOS interface view

Default level

2: System level

Parameters

t3-number: Number of a T3 channel on the CPOS interface, which ranges from 1 to 3.

Description

Use the t3 framed command to create a serial interface corresponding to the framed T3 channel.

Use the undo t3 framed command to restore the default.

By default, no serial interface is created.

The router does not support adding a serial interface corresponding to the T3 channel to the specified MP-group.

Examples

# Set the T3 channel 1 of interface CPOS 7/1/9 as framed and create a serial interface corresponding to the channel.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t3 1 framed

t3 set clock

Syntax

t3 t3-number set clock { master | slave }

undo t3 t3-number set clock

View

CPOS interface view

Default level

2: System level

Parameters

t3-number: Number of a T3 channel on the current CPOS interface, in the range of 1 to 3.

master: Sets the clock mode to master.

slave: Sets the clock mode to slave.

Description

Use the t3 set clock command to set clocking for the T3 channel.

Use the undo t3 set clock command to restore the default.

By default, the clock mode of a T3 channel is slave.

You can configure different clock modes for different T3 channels depending on the device each T3 channel is connected to. For example, when a T3 channel is connected to a SONET/SDH device, you should set its clock mode to slave; when two devices are directly connected through an optical fiber, you should set different clock modes for the two ends.

NOTE:

· The clock mode of a T3 channel of a CPOS interface is independent of that of any other T3 channel of the CPOS interface.

· H3C recommends that you configure the clock mode of a T3 channel the same as the global clock mode.

Examples

# Configure the clock mode of the T3 channel 1 of CPOS 7/1/9 as master.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t3 1 set clock master

t3 set frame-format

Syntax

t3 t3-number set frame-format { c-bit | m23 }

undo t3 t3-number set frame-format

View

CPOS interface view

Default level

2: System level

Parameters

t3-number: Number of a T3 channel on the current CPOS interface, in the range of 1 to 3.

c-bit: Specifies C-bit framing (G.704) for carrying maintainable information such as FEAC.

m23: Specifies M23 (G.752) framing.

Description

Use the t3 set frame-format command to specify a framing format for the specified T3 interface on the current CPOS interface.

Use the undo t3 set frame-format command to restore the default.

By default, C-bit framing is adopted on a T3 interface.

A T3 channel working in unframed mode does not support framing format setting.

Related commands: using t3.

Examples

# Configure M23 framing on T3 channel 1 on interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t3 1 set frame-format m23

t3 set loopback

Syntax

t3 t3-number set loopback { local | payload | remote }

undo t3 t3-number set loopback

View

CPOS interface view

Default level

2: System level

Parameters

t3-number: Number of a T3 channel on the current CPOS interface, in the range of 1 to 3.

local: Enables internal loopback on the T3 channel.

payload: Enables external payload loopback on the T3 channel.

remote: Enables external loopback on the T3 channel.

Description

Use the t3 set loopback command to enable a type of loopback on the specified T3 channel.

Use the undo t3 set loopback command to disable loopback.

By default, loopback is disabled.

Loopback is designed for troubleshooting purposes. Disable it in normal cases.

Related commands: display controller cpos t3.

Examples

# Enable external payload loopback on T3 channel 1 of CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] t3 1 set loopback payload

threshold

Syntax

threshold { sd | sf } value

undo threshold { sd | sf }

View

CPOS interface view

Default level

2: System level

Parameters

sd: Sets the SD alarm threshold.

sf: Sets the SF alarm threshold.

value: SD or SF threshold value, an integer in the range of 4 to 9 for PIC-CLF2G8L and PIC-CLF4G8L CPOS sub-cards and 3 to 9 for other types of CPOS sub-cards. It is interpreted as a negative exponent of 10e, 10e-3 for example. Because the SD threshold must be lower than the SF threshold, assign the value argument a greater integer for the SD threshold than that for the SF threshold.

Description

Use the threshold command to set the SD or SF alarm threshold for a CPOS interface.

Use the undo threshold command to restore the default.

By default, the SD alarm threshold is 10e-6; the SF alarm threshold is 10e-4 for PIC-CLF2G8L and PIC-CLF4G8L CPOS sub-cards and 10e-3 for other types of CPOS sub-cards.

SD and SF alarms are used to indicate current line performance. They are generated when the receiving end detects a certain amount of B2 errors. The bit error rate threshold of SF is higher than that of SD. When a small amount of errors occur, SD alarms are generated; When the error rate increases to a certain level, SF alarms are generated, indicating the line performance has been degrading seriously.

When setting the thresholds, set the SD threshold lower than the SF threshold.

Examples

# Set the SD threshold on interface CPOS 7/1/9 to 5.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] threshold sd 5

using e3

Syntax

using e3 e3-number

undo using e3 e3-number

View

CPOS interface view

Default level

2: System level

Parameters

e3-number: Number of an E3 channel on the current CPOS interface, in the range of 1 to 3.

Description

Use the using e3 command to create a serial interface corresponding to the unframed E3 channel.

Use the undo using e3 command to remove the serial interface for the specified E3 channel.

By default, no serial interface is created for any E3 channel.

Examples

# Create a serial interface corresponding to the unframed E3 channel 1 on interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] using e3 1

[Sysname-Cpos7/1/9] interface Serial 7/1/9/1:0

[Sysname-Serial7/1/9/1:0]

using t3

Syntax

using t3 t3-number

undo using t3-number

View

CPOS interface view

Default level

2: System level

Parameters

t3-number: Number of a T3 channel on the current CPOS interface, in the range of 1 to 3.

Description

Use the using t3 command to create a serial interface corresponding to the specified unframed T3 channel.

Use the undo using t3 command to remove the serial interface for the specified unframed T3 channel.

By default, no serial interface is created for any T3 channel.

Examples

# Create a serial interface for T3 channel 1 on interface CPOS 7/1/9.

<Sysname> system-view

[Sysname] controller Cpos 7/1/9

[Sysname-Cpos7/1/9] using t3 1

[Sysname-Cpos7/1/9] interface Serial 7/1/9/1:0

[Sysname-Serial7/1/9/1:0]

02-Interface Command Reference

CPOS interface configuration commands

controller cpos

default

display controller cpos e1

display controller cpos e3

display controller cpos t1

e1 set frame-format

e1 unframed

frame-format

t1 unframed

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