Table of Contents

Chapter 1 OAM Configuration Commands. 1-1

1.1 OAM Configuration Commands. 1-1

1.1.1 debugging oam.. 1-1

1.1.2 display oam.. 1-2

1.1.3 display oam configuration. 1-7

1.1.4 display oam critical-event 1-8

1.1.5 display oam link-event 1-10

1.1.6 oam enable. 1-12

1.1.7 oam errored-frame period. 1-13

1.1.8 oam errored-frame threshold. 1-14

1.1.9 oam errored-frame-period period. 1-14

1.1.10 oam errored-frame-period threshold. 1-16

1.1.11 oam errored-frame-seconds period. 1-16

1.1.12 oam errored-frame-seconds threshold. 1-17

1.1.13 oam errored-symbol period. 1-18

1.1.14 oam errored-symbol threshold. 1-19

1.1.15 oam loopback. 1-20

1.1.16 oam mode. 1-21

1.1.17 reset oam.. 1-22

 

Chapter 1  OAM Configuration Commands

1.1  OAM Configuration Commands

1.1.1  debugging oam

Syntax

debugging oam { all | critical-event | error | fsm | link-event | packet [ send | receive ] } [ interface interface-type interface-number ]

undo debugging oam { all | critical-event | error | fsm | link-event | packet [ send | receive ] } [ interface interface-type interface-number ]

View

User view

Default Level

2: System level

Parameters

all: Enables/disables all the OAM debugging functions. 

critical-event: Enables the OAM critical link event debugging.

error: Enables/disables the OAM error debugging. 

fsm: Enables/disables the OAM state machine debugging. 

link-event: Enables/disables the OAM link event debugging.

packet: Enables/disables the OAM packet debugging.

send: Enables/disables debugging for sent packets.

receive: Enables/disables debugging for received packets.

interface-type interface-number: Specifies a port by its type and number.

Description

Use the debugging oam command to enable specific or all the OAM debugging functions.

Use the undo debugging oam command to disable specific or all the OAM debugging functions.

By default, all the OAM debugging functions are disabled.

Examples

# Enable all the OAM debugging functions on GigabitEthernet 1/1/3.

<Sysname> debugging oam all interface GigabitEthernet 1/1/3

1.1.2  display oam

Syntax

display oam { local | remote } [ interface interface-type interface-number ]

View

Any view

Default Level

2: System level

Parameters

local: Displays the local OAM connection information.

remote: Displays the peer OAM connection information.

interface-type: Port type.

interface-number: Port number.

Description

Use the display oam command to display the information about an OAM connection, including connection status, information contained in OAM packet header, and OAM packet statistics.

If you do not specify the interface keyword, this command displays the information about all the OAM connections.

Examples

# Display the local OAM connection information.

<Sysname> display oam local

Port        : Ethernet4/1/1

Link Status : Up

EnableStatus              : Enable

Local_oam_mode            : Active      Local_pdu              : ANY

Local_mux_action          : FWD         Local_par_action       : DISCARD

Port        : Ethernet4/1/2

Link Status : Down

EnableStatus              : Enable

Local_oam_mode            : Active      Local_pdu              : LF_INFO

Local_mux_action          : FWD         Local_par_action       : FWD

Table 1-1 Description on the fields of the display oam local command

Field	Description
Port	Port index
Link Status	Link status
EnableStatus	OAM state (enabled or disabled)
Local_oam_mode	Local OAM mode, which can be: l      Active, indicating the port operates in the active OAM mode l      Passive, indicating the port operates in the passive OAM mode
Local_pdu	The way in which OAMPDUs of different types are processed locally. This field can be: l      RX_INFO, indicating the port only receives Information OAMPDUs and does not send OAMPDUs. l      LF_INFO, indicating the port only sends the Information OAMPDUs without Information TLV triplets and with their link error flag bits being set l      INFO, indicating the port only sends and receives Information OAMPDUs l      ANY, indicating the port sends and receives OAMPDUs of any types
Local_mux_action	Local sending mode, which can be: l      FWD, indicating the port can send any packets l      DISCARD, indicating the port only sends OAMPDUs
Local_par_action	Local receiving mode, which can be: l      FWD, indicating the port can receive any packets l      DISCARD, indicating the port only receives OAMPDUs l      LB, indicating OAM loopback testing is enabled on the port. In this case, all the packets received are returned to their sources along the ways they come.

 

# Display the information about the OAM connection established on the local port Ethernet 4/1/1.

<Sysname> display oam local interface ethernet 4/1/1

Port        : Ethernet4/1/1

Link Status : Up

EnableStatus              : Enable

Local_oam_mode            : Active      Local_pdu              : ANY

Local_mux_action          : FWD         Local_par_action       : FWD

OAMLocalFlagsField :

--------------------------------------------------------------------------

Link Fault                : 0           Dying Gasp             : 0

Critical Event            : 0           Local Evaluating       : COMPLETE

Remote Evaluating         : COMPLETE

Packets statistic :

Packets                        Send                   Receive

--------------------------------------------------------------------------

OAMPDU                         645                    648

OAMInformation                 645                    648

OAMEventNotification           0                      --

OAMUniqueEventNotification     --                     0

OAMDuplicateEventNotification  --                     0

Table 1-2 Description on the fields of the display oam local interface command

Field	Description
Port	Port index
Link Status	Link status
EnableStatus	OAM state (enabled or disabled)
Local_oam_mode	Local OAM mode. Refer to Table 1-1 for more.
Local_pdu	The way in which OAMPDUs of different types are processed locally. Refer to Table 1-1 for more.
Local_mux_action	Local sending mode. Refer to Table 1-1 for more.
Local_par_action	Local receiving mode. Refer to Table 1-1 for more.
OAMLocalFlagsField	Local flags inserted in the  local flag fields of the OAMPDUs sent
Link Fault	Indicates whether OAM link error events occurred. A value of 0 indicates no OAM error event occurs; a value of 1 indicates OAM error event occurrences.
Dying Gasp	Indicate whether Dying Gasp events occurred. A value of 0 indicates no Dying Gasp event occurs; a value of 1 indicates Dying Gasp event occurrences.
Critical Event	Indicates whether Critical Events occurred. A value of 0 indicates no Critical event occurs; a value of 1 indicates Critical event occurrences.
Local Evaluating	Indicates whether the local-to-remote configuration negotiation is complete.
Remote Evaluating	Indicates whether the remote-to-local configuration negotiation is complete.
Packets statistic	Statistics on OAM packets sent and received
OAMPDU	Total number of the OAMPDUs sent and received
OAMInformation	Number of the Information OAMPDUs sent and received
OAMEventNotification	Number of the Event notification OAMPDUs sent and received
OAMUniqueEventNotification	Number of the unduplicated Event notification OAMPDUs sent or received uniquely
OAMDuplicateEventNotification	Number of the duplicate Event notification OAMPDUs sent or received

 

# Display about the peer OAM information.

<Sysname> display oam remote

Port        :Ethernet4/1/1

Link Status :Up

Information of the latest received OAM packet:

OAMRemoteMACAddress       : 00e0-fc00-3552

OAMRemotePDUConfiguration : 1500

Remote_mux_action         : FWD         Remote_par_action      : FWD

Table 1-3 Description on the fields of the display oam remote command

Field	Description
Port	Port index
Link Status	Link status
Information of the latest received OAM packet	Information about the latest received OAM packet
OAMRemoteMACAddress	MAC address of the OAM peer
OAMRemotePDUConfiguration	Maximum OAMPDU size allowed
Remote_mux_action	Peer sending mode. Refer to Table 1-1 for more.
Remote_par_action	Peer receiving mode. Refer to Table 1-1 for more.

 

# Display the OAM information about the peer port Ethernet 4/1/1.

<Sysname> display oam remote interface ethernet 4/1/1

Port        : Ethernet4/1/1

Link Status : Up

Information of the latest received OAM packet:

OAMRemoteMACAddress       : 00e0-fd73-6502

OAMRemotePDUConfiguration : 1500

OAMRemoteState :

--------------------------------------------------------------------------

Remote_mux_action         : FWD         Remote_par_action      : FWD

OAMRemoteConfiguration :

--------------------------------------------------------------------------

OAM Mode                  : Active      Unidirectional Support : YES

Loopback Support          : YES         Link Events            : YES

Variable Retrieval        : NO

OAMRemoteFlagsField :

--------------------------------------------------------------------------

Link Fault                : 0           Dying Gasp             : 0

Critical Event            : 0           Local Evaluating       : COMPLETE

Remote Evaluating         : COMPLETE

Table 1-4 Description on the fields of the display oam remote interface command

Field	Description
Port	Port index
Link Status	Link status
Information of the latest received OAM packet	Information about the latest received OAM packet
OAMRemoteMACAddress	MAC address of the OAM peer
OAMRemotePDUConfiguration	Maximum OAMPDU size allowed
OAMRemoteState	State of the peer OAM peer
Remote_mux_action	Peer sending mode. Refer to Table 1-1 for more.
Remote_par_action	Peer receiving mode. Refer to Table 1-1 for more.
OAMRemoteConfiguration	Configuration of the peer OAM entity
OAM Mode	OAM mode
Unidirectional Support	Indicates whether unidirectional transmission is supported (YES or NO)
Loopback Support	Indicates whether OAM loopback testing is supported (YES or NO)
Link Events	Indicates whether OAM link error events are supported (YES or NO)
Variable Retrieval	Indicates whether MIB variable retrieval is supported (YES or NO)
OAMRemoteFlagsField	Values of the peer OAM flag fields in OAM packets
Link Fault	Indicates whether OAM link error events occurred. Refer to Table 1-2 for more.
Dying Gasp	Indicate whether Dying Gasp events occurred. Refer to Table 1-2 for more.
Critical Event	Indicate whether Critical events occurred. Refer to Table 1-2 for more.
Local Evaluating	Indicates whether the local-to-remote configuration negotiation is complete.
Remote Evaluating	Indicates whether the remote-to-local configuration negotiation is complete.

 

 

1.1.3  display oam configuration

Syntax

display oam configuration

View

Any view

Default Level

2: System level

Parameters

None

Description

Use the display oam configuration command to display global OAM global, including the periods and thresholds for OAM link error event detection.

Related commands: oam errored-symbol period, oam errored-symbol threshold, oam errored-frame period, oam errored-frame threshold, oam errored-frame-period period, oam errored-frame-period threshold, oam errored-frame-seconds period, oam errored-frame-seconds threshold.

Examples

# Display global OAM configuration.

<Sysname> display oam configuration

Configuration of the link event window/threshold :

--------------------------------------------------------------------------

Errored-symbol Event period(in seconds)           :     1

Errored-symbol Event threshold                    :     1

Errored-frame Event period(in seconds)            :     1

Errored-frame Event threshold                     :     1

Errored-frame-period Event period(in ms)          :     1000

Errored-frame-period Event threshold              :     1

Errored-frame-seconds Event period(in seconds)    :     60

Errored-frame-seconds Event threshold             :     1

Table 1-5 Description on the fields of the display oam configuration command

Field	Description
Configuration of the errored link event window/threshold	Periods and thresholds for OAM link error event detection
Errored-symbol Event period	Error symbol detection interval, which defaults to one second.
Errored-symbol Event threshold	Error threshold that triggers an error symbol event, which defaults to 1.
Errored-frame Event period	Error frame detection interval, which defaults to one second.
Errored-frame Event threshold	Error threshold that triggers an error frame event, which defaults to 1.
Errored-frame-period Event period	Error frame period detection interval, which defaults to 1000 milliseconds.
Errored-frame-period Event threshold	Error threshold that triggers an error frame period event, which defaults to 1.
Errored-frame-seconds Event period	Error frame second detection interval, which defaults to 60 seconds.
Errored-frame-seconds Event threshold	Error threshold that triggers an error frame seconds event, which defaults to 1.

 

1.1.4  display oam critical-event

Syntax

display oam critical-event [ interface interface-type interface-number]

View

Any view

Default Level

2: System level

Parameters

interface-type: Port type.

interface-number: Port number.

Description

Use the display oam critical-event command to display the statistics on critical OAM link events occurred on a port.

If you do not specify the interface keyword, this command displays the statistics on the critical OAM link events occurred on all the ports of the switch.

Examples

# Display the statistics on critical OAM link events that occurred on all the ports.

<Sysname> display oam critical-event

Port        : Ethernet4/1/1

Link Status : Up

Event statistic :

-------------------------------------------------------------------------

Link Fault    :0    Dying Gasp    : 0    Critical Event    : 0

Table 1-6 Description on the fields of the display oam critical-event command

Field	Description
Port	Port index
Link Status	Link status
Event statistic	Statistics on critical OAM link events
Link Fault	Indicates whether OAM link error events occurred. Refer to Table 1-2 for more.
Dying Gasp	Indicates whether Dying Gasp events occurred. Refer to Table 1-2 for more.
Critical Event	Indicate whether Critical events occurred. Refer to Table 1-2 for more.

 

1.1.5  display oam link-event

Syntax

display oam link-event { local | remote } [ interface interface-type interface-number ]

View

Any view

Default Level

2: System level

Parameters

local: Displays the statistics on the local OAM link error events.

remote: Displays the statistics on the peer OAM link error events.

interface-type: Port type.

interface-number: Port number.

Description

Use the display oam link-event command to display the statistics on OAM link error events occurred on a local port or a peer port. OAM link error events include error symbol events, error frame events, error frame period events, and error frame seconds events.

If you do not specify the interface keyword, this command displays the statistics on the OAM link error events occurred on all the local/peer ports.

Related commands: display oam configuration.

Examples

# Display the statistics on OAM link error events that occurred on all the local ports.

<Sysname> display oam link-event local

Port        : Ethernet4/1/1

Link Status : Up

OAMLocalErrFrameEvent : (ms = milliseconds)

--------------------------------------------------------------------------

Event Time Stamp          : 3539        Errored Frame Window  : 10(100ms)

Errored Frame Threshold   : 5           Errored Frame         : 1488111

Error Running Total       : 260908758   Event Running Total   : 307

 

OAMLocalErrFramePeriodEvent :

--------------------------------------------------------------------------

Event Time Stamp          : 3539        Errored Frame Window  : 976500

Errored Frame Threshold   : 1           Errored Frame         : 1042054

Error Running Total       : 260909151   Event Running Total   : 471

 

OAMLocalErrFrameSecsSummaryEvent : (ms = milliseconds)

--------------------------------------------------------------------------

Event Time Stamp : 3389

Errored Frame Second Summary Window     : 600(100ms)

Errored Frame Second Summary Threshold  : 1

Errored Frame Second Summary            : 60

Error Running Total       : 292         Event Running Total   : 5

Table 1-7 Description on the fields of the display oam link-event local command

Field	Description
Port	Port index
Link Status	Link status
OAMLocalErrFrameEvent : (ms = milliseconds)	Information about the local error frame events. l      Event Time Stamp: time when an error frame event occurs (in terms of 100 milliseconds). l      Errored Frame Window: period for error frame event detection (in terms of 100 milliseconds). l      Errored Frame Threshold: error threshold that triggers an error frame event. l      Errored Frame: the number of error frames in the specific period. l      Error Running Total: the total number of error frames. l      Event Running Total: the total number of error frame events that have occurred.
OAMLocalErrFramePeriodEvent	Information about the local error frame period events: l      Event Time Stamp: time when an error frame event occurs (in terms of 100 milliseconds). l      Errored Frame Window: maximum number of 64-byte frames that can be transmitted through an Ethernet port in the period. This value is obtained by using the following expression: bandwidth * period / (64 * 8 * 1000), where “bandwidth” is the port bandwidth (in bps) and “period” is the configured period (in milliseconds). l      Errored Frame Threshold: error threshold that triggers an error frame period event l      Errored Frame: the number of error frames in a specific period. l      Error Running Total: the total number of error frames that have occurred. l      Event Running Total: the total number of error frame period events.
OAMLocalErrFrameSecsSummaryEvent : (ms = milliseconds)	Information about the local error frame seconds events l      Event Time Stamp: time when a error frame seconds event occurs (in terms of 100 milliseconds). l      Errored Frame Second Summary Window: error frame second detection interval (in terms of 100 milliseconds). l      Errored Frame Second Summary Threshold: error threshold that triggers an error frame seconds event. l      Errored Frame Second Summary: the number of error frame seconds in a specific period. l      Error Running Total: the total number of error frame seconds. l      Event Running Total: the total number of error frame seconds events that have occurred.

 

1.1.6  oam enable

Syntax

oam enable

undo oam enable

View

Ethernet port view

Default Level

2: System level

Parameters

None

Description

Use the oam enable command to enable OAM on a Ethernet port.

Use the undo oam enable command to disable OAM.

By default, OAM is disabled on all ports.

After you enable OAM for an Ethernet port, the port try to establish an OAM connection to the peer in the predetermined mode.

Related commands: oam mode.

Examples

# Enable OAM on Ethernet 1/1.

<Sysname> system-view

[Sysname] interface ethernet 4/1/1

[Sysname-Ethernet4/1/1] oam enable

1.1.7  oam errored-frame period

Syntax

oam errored-frame period period-value

undo oam errored-frame period

View

System view

Default Level

2: System level

Parameters

period-value: Error frame detection interval in seconds, ranging from 1 to 60.

Description

Use the oam errored-frame period command to set the error frame detection interval.

Use the undo oam errored-frame period command to restore the default.

The default error frame detection interval is one second.

When the number of error frames detected on an Ethernet port over a detection interval reaches the error frame threshold, an error frame event occurs.

The error frame detection interval configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-frame threshold, display oam link-event, and display oam configuration.

 

 

Examples

# Set error frame detection interval to 10 seconds.

<Sysname> system-view

[Sysname] oam errored-frame period 10

1.1.8  oam errored-frame threshold

Syntax

oam errored-frame threshold threshold-value

undo oam errored-frame threshold

View

System view

Default Level

2: System level

Parameters

threshold-value: Error threshold in frames for creating an error frame event, ranging from 0 to 4,294,967,295.

Description

Use the oam errored-frame threshold command to configure the error threshold that triggers an error frame event.

Use the undo oam errored-frame threshold command to restore the default.

The default error threshold that triggers an error frame event is 1.

When the number of error frames detected on a port over a detection interval reaches the error frame threshold, an error frame event occurs.

The error frame threshold configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-frame period, display oam link-event, display oam configuration.

Examples

# Configure the error threshold that triggers an error frame event to 100.

<Sysname> system-view

[Sysname] oam errored-frame threshold 100

1.1.9  oam errored-frame-period period

Syntax

oam errored-frame-period period period-value

undo oam errored-frame-period period

View

System view

Default Level

2: System level

Parameters

period-value: Error frame period detection interval, ranging from 100 to 60,000 (in milliseconds).

Description

Use the oam errored-frame-period period command to set the error frame period detection interval.

Use the undo oam errored-frame-period period command to restore the default.

The default error frame period detection interval is 1,000 milliseconds.

The system converts the configured interval to the maximum number of packets that a port can send over this interval with the following expression:

Max. number of packets = bandwidth × interval/(64 × 8 x 1000)

Where, bandwidth is the port bandwidth in bps and interval is the configured error frame period detection interval in milliseconds.

When the number of error frames detected on a port over a detection interval is equal to or greater than the error threshold, an error frame period event occurs.

The error frame period detection interval configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-frame-period threshold, display oam link-event, and display oam configuration.

 

 

Examples

# Set the error frame period detection interval to 10 seconds.

<Sysname> system-view

[Sysname] oam errored-frame-period period 10000

1.1.10  oam errored-frame-period threshold

Syntax

oam errored-frame-period threshold threshold-value

undo oam errored-frame-period threshold

View

System view

Default Level

2: System level

Parameters

threshold-value: Error threshold for creating an error frame period event, ranging from 0 to 4,294,967,295.

Description

Use the oam errored-frame-period threshold command to set the error threshold that triggers an error frame period event.

Use the undo oam errored-frame-period threshold command to restore the default.

The default error threshold that triggers an error frame period event is 1.

When the number of error frames detected on a port over a detection interval reaches the threshold, an error frame period event occurs.

The error frame threshold configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-frame-period period, display oam link-event, and display oam configuration.

Examples

# Set the error threshold for creating an error frame period event to 100.

<Sysname> system-view

[Sysname] oam errored-frame-period threshold 100

1.1.11  oam errored-frame-seconds period

Syntax

oam errored-frame-seconds period period-value

undo oam errored-frame-seconds period

View

System view

Default Level

2: System level

Parameters

period-value: Error frame second detection interval, ranging from 10 to 900 (in seconds).

Description

Use the oam errored-frame-seconds period command to set the error frame second detection interval.

Use the undo oam errored-frame-seconds period command to restore the default.

The default error frame second detection interval is 60 seconds.

Error frame seconds are the seconds within which error frames are detected.

When the number of error frame seconds detected on a port over a detection interval reaches the error threshold, an error frame seconds event occurs.

The error frame second detection interval configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-frame-seconds threshold, display oam link-event, display oam configuration.

 

 

Examples

# Set the error frame second detection interval to 100 seconds.

<Sysname> system-view

[Sysname] oam errored-frame-seconds period 100

1.1.12  oam errored-frame-seconds threshold

Syntax

oam errored-frame-seconds threshold threshold-value

undo oam errored-frame-seconds threshold

View

System view

Default Level

2: System level

Parameters

threshold-value: Error threshold in number of seconds for creating an error frame seconds event, ranging from 0 to 900.

Description

Use the oam errored-frame-seconds threshold command to set the error threshold that triggers an error frame seconds event.

Use the undo oam errored-frame-seconds threshold command to restore the default.

Error frame seconds are the seconds within which error frames are detected.

When the number of error frame seconds detected on a port over a detection interval reaches the error threshold, an error frame seconds event occurs.

The error frame second threshold configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-frame-seconds period, display oam link-event, display oam configuration.

Examples

# Set the error threshold that triggers an error frame second event to 100.

<Sysname> system-view

[Sysname] oam errored-frame-seconds threshold 100

1.1.13  oam errored-symbol period

Syntax

oam errored-symbol period period-value

undo oam errored-symbol period

View

System view

Default Level

2: System level

Parameters

period-value: Error symbol detection interval, ranging from 1 to 60 (in seconds).

Description

Use the oam errored-symbol period command to set the error symbol detection interval.

Use the undo oam errored-symbol period command to restore the default.

The default error symbol detection interval is one second.

When the number of error symbols detected on a port over a detection interval reaches the error threshold, an error symbol event occurs.

The error symbol detection interval configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-symbol threshold, display oam link-event, display oam configuration.

Examples

# Set the error symbol detection interval to 10 seconds.

<Sysname> system-view

[Sysname] oam errored-symbol period 10

1.1.14  oam errored-symbol threshold

Syntax

oam errored-symbol threshold threshold-value

undo oam errored-symbol threshold

View

System view

Default Level

2: System level

Parameters

threshold-value: Error threshold in number of symbols for creating an error symbol event, ranging from 0 to 4,294,967,295.

Description

Use the oam errored-symbol threshold command to configure the error threshold that triggers an error symbol event.

Use the undo oam errored-symbol threshold command to restore the default.

The default error threshold that triggers an error symbol event is 1.

When the number of error symbols detected on a port over a detection interval reaches the error threshold, an error symbol event occurs.

The error symbol threshold configuration takes effect on all the Ethernet ports that have an Ethernet OAM connection.

Related commands: oam errored-symbol period, display oam link-event, and display oam configuration.

Examples

# Set the threshold that triggers an error symbol event to 100.

<Sysname> system-view

[Sysname] oam errored-symbol threshold 100

1.1.15  oam loopback

Syntax

oam loopback

undo oam loopback

View

Ethernet port view

Default Level

2: System level

Parameters

None

Description

Use the oam loopback command to enable remote loopback on an Ethernet port.

Use the undo oam loopback command to disable remote loopback.

By default, remote loopback is disabled.

Note that:

l           Remote loopback is available only after the OAM connection is established.

l           Remote loopback can be performed by OAM entities operating in the active OAM mode only.

l           Remote loopback is available only when it is supported on both the local port and the peer port.

l           Enabling remote loopback results in all the data communications being stopped. After remote loopback is disabled, all the ports involved will be shut down and then brought up.

l           Remote loopback is disabled when you execute the undo oam enable command to disable OAM; when you execute the undo oam loopback command to disable remote loopback; or when the OAM connection is timed out.

Related commands: oam enable and oam mode.

 

 

Examples

# Enable remote loopback on GigabitEthernet 6/2/1.

<Sysname> system-view

System View: return to User View with Ctrl+Z.

[Sysname] interface GigabitEthernet 6/2/1

[Sysname-GigabitEthernet6/2/1] oam mode active

[Sysname-GigabitEthernet6/2/1] oam enable

[Sysname-GigabitEthernet6/2/1] oam loopback

1.1.16  oam mode

Syntax

oam mode { active | passive }

View

Ethernet port view

Default Level

2: System level

Parameters

active: Specifies the active OAM mode.

passive: Specifies the passive OAM mode.

Description

Use the oam mode command to set the OAM operating mode for an Ethernet port. By default, an OAM-enabled Ethernet port operates in the active OAM mode.

Note that:

l           No OAM connection can be established between two Ethernet ports operating in the passive OAM mode.

l           For an OAM-enabled Ethernet port, the OAM operating mode cannot be changed. To do this, you need to disable OAM on the port first.

Related commands: oam enable.

Examples

# Configure Ethernet 4/1/1 to operate in the active OAM mode.

<Sysname> system-view

[Sysname] interface ethernet 4/1/1

[Sysname-Ethernet4/1/1] oam mode active

1.1.17  reset oam

Syntax

reset oam [ interface interface-type interface-number ]

View

User view

Default Level

2: System level

Parameters

interface-type: Port type.

interface-number: Port number.

Description

Use the reset oam command to clear the statistics on OAM packets and OAM link error events of an Ethernet port.

If you do not specify the interface keyword, this command clears the statistics on OAM packets and OAM link error events of all the ports.

Examples

# Clear the statistics on OAM packets and OAM link error events of all the ports.

<Sysname> reset oam