Contents

OTN commands· 1

alarm-detect 1

controller dwdm·· 2

display controller dwdm·· 2

fec· 4

fec-tca recover 5

fec-tca trigger 6

otn-mode· 7

reset counters controller dwdm·· 7

sd otu threshold· 8

tti 8

 

OTN commands

alarm-detect

Use alarm-detect to enable an alarm and set the action to take when the alarm is triggered on a DWDM interface.

Use undo alarm-detect to restore the default.

Syntax

alarm-detect { fec-tca | odu-ais | odu-lck | odu-oci | opu-plm | otu-biae | otu-sd | otu-lom | otu-oom | pm-bdi | pm-tim | r-lof | r-los | r-oof | sm-bdi | sm-iae | sm-tim } * action link-down

alarm-detect all

undo alarm-detect { fec-tca | odu-ais | odu-lck | odu-oci | opu-plm | otu-biae | otu-sd | otu-lom | otu-oom | pm-bdi | pm-tim | r-lof | r-los | r-oof | sm-bdi | sm-iae | sm-tim } *

undo alarm-detect all

Default

All alarms are disabled on a DWDM interface.

Views

DWDM interface view

Predefined user roles

network-admin

mdc-admin

Parameters

fec-tca: Specifies the FEC threshold crossing alarm.

odu-ais: Specifies the ODU alarm indication signal alarm.

odu-lck: Specifies the ODU locked alarm.

odu-oci: Specifies the ODU open connection indication alarm.

opu-plm: Specifies the OPU payload mismatch alarm.

otu-biae: Specifies the OTU backward incoming alignment error alarm.

otu-sd: Specifies the OTU signal degradation alarm.

otu-lom: Specifies the OTN loss of multiframe alarm. This alarm is generated if the OTU-OOM alarm lasts for 3 ms.

otu-oom: Specifies the OTN out of multiframe alarm.

pm-bdi: Specifies the ODU path monitoring backward defect indication alarm.

pm-tim: Specifies the ODU path monitoring TTI mismatch alarm.

r-lof: Specifies the OTN loss of frame alarm.

r-los: Specifies the OTN loss of signal alarm.

r-oof: Specifies the OTN out of frame alarm.

sm-bdi: Specifies the OTU section monitoring backward defect indication alarm.

sm-iae: Specifies the OTU section monitoring incoming alignment error alarm.

sm-tim: Specifies the OTU section monitoring TTI mismatch alarm.

all: Specifies all alarms.

Usage guidelines

This command enables the device to shut down a DWDM interface when an enabled alarm is triggered on the interface.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Configure DWDM 1/2/2/1 to go down when the OTU-TIM alarm is triggered on the interface.

<Sysname> system-view

[Sysname] controller dwdm 1/2/2/1

[Sysname-DWDM1/2/2/1] alarm-detect otu-tim action link-down

controller dwdm

Use controller dwdm to enter DWDM interface view.

Syntax

controller dwdm interface-number

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

interface-number: Specifies a DWDM interface number.

Examples

# Enter the view of DWDM 1/2/1/1.

<Sysname> system-view

[Sysname] controller dwdm 1/2/1/1

[Sysname-DWDM1/2/1/1]

display controller dwdm

Use display controller dwdm to display DWDM interface information.

Syntax

display controller [ dwdm [ interface-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

dwdm [ interface-number ]: Specifies a DWDM interface number. If you specify only the dwdm keyword, this command displays information about all DWDM interfaces. If you do not specify the dwdm keyword or the interface-number argument, this command displays information about the following interfaces:

·     CE1/PRI interfaces.

·     CE3 interfaces.

·     CPOS interfaces.

·     CT1/PRI interfaces.

·     CT3 interfaces.

·     DWDM interfaces.

Examples

# Display information about DWDM 1/2/1/1.

<Sysname> display controller dwdm 1/2/1/1

DWDM 1/2/1/1

Current state:DOWN

Description:DWDM1/2/1/1 Interface

Port BW: 100G, Transceiver max BW: 111.8Gbps

Frame-format is OTN

fec-tca trigger threshold 1E-3 interval 3 recover-threshold 1E-4 interval 30

Sd otu threshold 1E-6

FEC mode: standard

OTN alarm: none

OTU layer: LOS  LOF  OOF  LOM  OOM  TIM  BDI  DEG  IAE  BIAE  FEC-TCA

ODU layer:

PM: TIM  BDI  DEG  LCK  OCI  AIS

TCM1: BDI  LCK  OCI  AIS  IAE  BIAE

TCM2: BDI  LCK  OCI  AIS  IAE  BIAE

TCM3: BDI  LCK  OCI  AIS  IAE  BIAE

TCM4: BDI  LCK  OCI  AIS  IAE  BIAE

TCM5: BDI  LCK  OCI  AIS  IAE  BIAE

TCM6: BDI  LCK  OCI  AIS  IAE  BIAE

OPU layer:  NONE

TTI:

  OTU TTI Expect: ""

  OTU TTI Sent: ""

  ODU-PM TTI Expect: ""

  ODU-PM TTI Sent: "//"

Last clearing of counters: 10:08:16 06/18/2020

DWDM Error Counter:

 FEC: total error 0, fec_0_error 0, fec_1_error 0

     uncorrected error: 0

  SM: bip 0, bei 0

  PM: bip 0, bei 0

Table 1 Command output

Field	Description
DWDM 1/2/1/1 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.
Port BW: 100G, Transceiver max BW: 111.8Gbps	Interface bandwidth and maximum transmission bandwidth.
TTI:   OTU TTI Expect: ""   OTU TTI Sent: ""   ODU-PM TTI Expect: ""   ODU-PM TTI Sent: "//"	TTI information: ·     TTI that the OTU layer expects to receive. ·     TTI sent by the OTU layer. ·     TTI that the OTU-PM layer expects to receive. ·     TTI sent by the OTU-PM layer.
FEC total error	Total number of FEC-corrected errors.
fec_0_error	Number of FEC-corrected 0 bit errors.
fec_1_error	Number of FEC-corrected 1 bit errors.
uncorrected error	Number of uncorrected errors.
SM bip	Number of OTU bit interleaved parity errors.
SM bei	Number of OTU backward error indication errors.
PM bip	Number of ODU bit interleaved parity errors.
PM bei	Number of ODU backward error indication errors.

 

fec

Use fec to set the FEC mode on a DWDM interface.

Use undo fec to restore the default.

Syntax

fec { enhanced | standard | none }

undo fec

Default

The FEC mode is set to standard.

Views

DWDM interface view

Predefined user roles

network-admin

mdc-admin

Parameters

enhanced: Specifies enhanced FEC mode.

standard: Specifies standard G.709 FEC mode.

none: Does not set the FEC mode.

Usage guidelines

FEC improves the transmission reliability and signal transmission distance by using an algorithm to correct errors in data transmission.

You must set the same FEC mode on the DWDM interfaces at the two ends of a link.

Examples

# Set the FEC mode to enhanced on DWDM 1/2/1/1.

<Sysname> system-view

[Sysname] controller dwdm 1/2/1/1

[Sysname-DWDM1/2/1/1] fec enhanced

fec-tca recover

Use fec-tca recover to set the FEC-TCA alarm recovering threshold and detection interval.

Use undo fec-tca recover to restore the default.

Syntax

fec-tca recover { threshold recover-coefficient recover-power | interval recover-time-interval }*

undo fec-tca recover

Default

The FEC-TCA alarm recovering threshold is e-7, and the detection interval is 30 seconds.

Views

DWDM interface view

Predefined user roles

network-admin

mdc-admin

Parameters

threshold recover-coefficient recover-power: Specifies the recovering threshold for the FEC-TCA alarm, in the format of xe-y. The recover-coefficient argument specifies the value of x, an integer in the range of 1 to 9. The recover-power argument specifies the value of y, an integer in the range of 1 to 8.

interval recover-time-interval: Specifies the detection interval for clearing the FEC-TCA alarm. The value range for the recover-time-interval argument is 10 to 100 seconds, and the step is 10 seconds.

Usage guidelines

The FEC-TCA alarm recovering threshold is set in scientific notation xe-y. The meanings of the parameters are as follows:

·     x—Coefficient.

·     e—Integer 10.

·     -y—Power of e.

Examples

# Set the FEC-TCA alarm recovering threshold to e-6 and the detection interval to 10 seconds on DWDM 1/2/1/1.

<Sysname> system-view

[Sysname] controller dwdm 1/2/1/1

[Sysname-DWDM1/2/1/1] fec-tca recover threshold 1 6 interval 10

fec-tca trigger

Use fec-tca trigger to set the FEC-TCA alarm triggering threshold and detection interval.

Use undo fec-tca trigger to restore the default.

Syntax

fec-tca trigger { threshold trigger-coefficient trigger-power | interval trigger-time-interval }*

undo fec-tca trigger

Default

The FEC-TCA alarm triggering threshold is e-6, and the detection interval is 3 seconds.

Views

DWDM interface view

Predefined user roles

network-admin

mdc-admin

Parameters

threshold trigger-coefficient trigger-power: Specifies the triggering threshold for the FEC-TCA alarm, in the format of xe-y. The trigger-coefficient argument specifies the value of x, an integer in the range of 1 to 9. The trigger-power argument specifies the value of y, an integer in the range of 1 to 7.

interval trigger-time-interval: Specifies the detection interval for generating the FEC-TCA alarm. The value range for the trigger-time-interval argument is 1 to 10 seconds.

Usage guidelines

The FEC-TCA alarm triggering threshold is set in scientific notation xe-y. The meanings of the parameters are as follows:

·     x—Coefficient.

·     e—Integer 10.

·     -y—Power of e.

Examples

# Set the FEC-TCA alarm triggering threshold to e-4 and the detection interval to 5 seconds on DWDM 1/2/1/1.

<Sysname> system-view

[Sysname] controller dwdm 1/2/1/1

[Sysname-DWDM1/2/1/1] fec-tca trigger threshold 1 4 interval 5

otn-mode

Use otn-mode enable to enable OTN mode on an interface.

Use undo otn-mode enable to restore the default.

Syntax

otn-mode enable

undo otn-mode enable

Default

An interface is operating in LAN mode.

Views

100-GE interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

During startup, the switch automatically creates a DWDM interface for each 100-GE interface that supports OTN. You can configure OTN settings on DWDM interfaces. The OTN settings take effect after you enable OTN mode on the corresponding Ethernet interfaces.

An interface operating in OTN mode transmits packets of the G.709 frame format.

You must enable OTN mode on the Ethernet interfaces at the two ends of a link.

Examples

# Enable OTN mode on HundredGigE 1/2/1/1.

<Sysname> system-view

[Sysname] interface hundredgige 1/2/1/1

[Sysname-HundredGigE1/2/1/1] otn-mode enable

reset counters controller dwdm

Use reset counters controller dwdm to clear bit error statistics on DWDM interfaces.

Syntax

reset counters controller dwdm [ interface-number ]

Views

User view

Predefined user roles

network-admin

mdc-admin

Parameters

interface-number: Specifies a DWDM interface number. If you do not specify this argument, the command clears bit error statistics on all DWDM interfaces.

Examples

# Clear bit error statistics on all DWDM interfaces.

<Sysname> reset counters controller dwdm

sd otu threshold

Use sd otu threshold to set the OTU-SD alarm threshold.

Use undo sd otu threshold to restore the default.

Syntax

sd otu threshold coefficient power

undo sd otu threshold

Default

The OTU-SD alarm threshold is e-6.

Views

DWDM interface view

Predefined user roles

network-admin

mdc-admin

Parameters

coefficient: Specifies the bit error rate coefficient (x in xe-y). The value range for this argument is 1 to 9, and the default value is 1.

power: Specifies the bit error rate power (y in xe-y). The value range for this argument is 1 to 8, and the default value is 6.

Usage guidelines

The OTU-SD alarm threshold is set in scientific notation xe-y. The meanings of the parameters are as follows:

·     x—Coefficient.

·     e—Integer 10.

·     -y—Power of e.

Examples

# Set the OTU-SD alarm threshold to e-7  on DWDM 1/2/1/1.

<Sysname> system-view

[Sysname] controller dwdm 1/2/1/1

[Sysname-DWDM1/2/1/1] sd otu threshold 1 7

tti

Use tti to set the OTU TTI or ODU-PM TTI.

Use undo tti to restore the default.

Syntax

tti { odu-pm | otu } { expected | sent } ascii value

undo tti { odu-pm | otu } { expected | sent }

Default

The TTI is empty (0 in ASCII format).

Views

DWDM interface view

Predefined user roles

network-admin

mdc-admin

Parameters

odu-pm: Specifies the ODU-PM TTI.

otu: Specifies the OTU TTI.

expected: Specifies the expected TTI.

sent: Specifies the sent TTI.

ascii: Uses the ASCII format.

value: Specifies a TTI string in the format of SAPI/DAPI/operator-specific identifier. The maximum length of the TTI string is 64 characters. The maximum length of the SAPI string is 15 characters. The maximum length of the DAPI string is 15 characters. The maximum length of the operator-specific identifier string is 32 characters. Segments of the TTI string are separated by a forward slash (/). You can omit a segment by not entering the corresponding string.

Usage guidelines

For a link, make sure the sent TTI of one end is the same as the expected TTI of the other end.

The TTI must contain a minimum of two forward slashes (/).

Examples

# Set the OTU TTI to *!@#&/123/abc on DWDM 1/2/1/1.

<Sysname> system-view

[Sysname] controller dwdm 1/2/1/1

[Sysname-DWDM1/2/1/1] tti otu sent ascii *!@#&/123/abc