03-Interface

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02-Ethernet interface commands
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02-Ethernet interface commands 174.13 KB

Ethernet interface commands

The WX1800H series, WX2500H series, and WX3000H access controllers do not support the slot keyword or the slot-number argument.

Common Ethernet interface commands

bandwidth

Use bandwidth to set the expected bandwidth of an interface.

Use undo bandwidth to restore the default.

Syntax

bandwidth bandwidth-value

undo bandwidth

Default

The expected bandwidth (in kbps) is the interface baud rate divided by 1000.

Views

Ethernet interface view

Ethernet subinterface view

Predefined user roles

network-admin

Parameters

bandwidth-value: Specifies the expected bandwidth in the range of 1 to 400000000 kbps.

Usage guidelines

The expected bandwidth is an informational parameter used only by higher-layer protocols for calculation. You cannot adjust the actual bandwidth of an interface by using this command.

Examples

# Set the expected bandwidth of interface GigabitEthernet 1/0/1 to 1000 kbps.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] bandwidth 1000

# Set the expected bandwidth of subinterface GigabitEthernet 1/0/1.1 to 1000 kbps.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1.1

[Sysname-GigabitEthernet1/0/1.1] bandwidth 1000

Related commands

speed

broadcast-suppression

Use broadcast-suppression to enable broadcast suppression and set the broadcast suppression threshold.

Use undo broadcast-suppression to disable broadcast suppression.

Syntax

broadcast-suppression { ratio | pps max-pps | kbps max-kbps }

undo broadcast-suppression

Default

Ethernet interfaces do not suppress broadcast traffic.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

ratio: Sets the broadcast suppression threshold as a percentage of the interface bandwidth. The value range for this argument is 0 to 100. A smaller value means that less broadcast traffic is allowed to pass through.

pps max-pps: Specifies the maximum number of broadcast packets that the interface can forward per second. The value range for the max-pps argument (in pps) is 0 to 1.4881 × the interface bandwidth.

kbps max-kbps: Specifies the maximum number of kilobits of broadcast traffic that the Ethernet interface can forward per second. The value range for this argument (in kbps) is 0 to the interface bandwidth.

Usage guidelines

The following matrix shows the command and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

No

WX2500H series

WX2510H

WX2540H

WX2560H

No

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

Yes:

·     WX3010H

·     WX3024H

·     WX3024H-F

No:

·     WX3010H-X

·     WX3010H-L

·     WX3024H-L

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

No

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

The broadcast storm suppression features limits the size of broadcast traffic to a threshold on an interface. When the broadcast traffic on the interface exceeds this threshold, the system drops packets until the traffic drops below this threshold.

The configured suppression threshold value in pps or kbps might be converted into a multiple of a step supported by the chip. As a result, the effective suppression threshold might be different from the configured one. To determine the suppression threshold that takes effect, see the prompts on the device.

Examples

# Set the broadcast suppression threshold to 10000 kbps on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] broadcast-suppression kbps 10000

The actual value is 10048 on port GigabitEthernet1/0/1 currently.

The output shows that the value that takes effect is 10048 kbps (157 times of 64), because the chip only supports step 64.

Related commands

multicast-suppression

unicast-suppression

dampening

Use dampening to enable the device to dampen an interface when the interface is flapping.

Use undo dampening to restore the default.

Syntax

dampening [ half-life reuse suppress max-suppress-time ]

undo dampening

Default

Interface dampening is disabled on Ethernet interfaces.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

half-life: Specifies the amount of time (in seconds) after which a penalty is decreased. The interface has an initial penalty of 0. When the interface flaps, the penalty increases by 1000 for each down event until the maximum penalty is reached. When the interface stops flapping, the penalty decreases by half each time the half-life timer expires until the penalty drops to the reuse threshold. The value range for the half-life timer is 1 to 120 seconds, and the default is 54 seconds.

reuse: Specifies the reuse threshold. When the accumulated penalty decreases to this threshold, the interface is not dampened. Interface state changes are reported to the higher layers. The value range for the reuse threshold is 200 to 20000, and the default is 750. The reuse threshold must be less than the suppression threshold.

suppress: Specifies the suppression threshold. This threshold is the accumulated penalty that triggers the device to dampen the interface. In dampened state, the interface does not report its state changes to the higher layers. The value range for the suppression threshold is 200 to 20000, and the default is 2000.

max-suppress-time: Specifies the maximum amount of time the interface can be dampened. If the penalty is still higher than the reuse threshold when this timer expires, the penalty stops increasing for down events. The penalty starts to decrease until it drops below the reuse threshold. The value range for the maximum suppression interval is 1 to 255 seconds, and the default is 162 seconds (three times the half-life timer).

 

 

NOTE:

·     The maximum penalty is equal to 2(Max-suppress-time/half-life)  × reuse threshold. It is not user configurable.

·     The penalty does not increase for up events.

 

Usage guidelines

The interface dampening feature uses an exponential decay mechanism to prevent excessive interface flapping events from adversely affecting routing protocols and routing tables in the network.

If an interface is not dampened, its state changes are reported. For each state change, the system also generates an SNMP notification and log message.

After a flapping interface is dampened, it does not report its state changes to the CPU. For state change events, the interface only generates SNMP notifications and log messages. Suppression of interface state change events protects the system processing resources.

This command does not take effect on the administratively down events. When you execute the shutdown command, the penalty restores to 0, and the interface reports the down event to the higher layer protocols.

If you do not specify any keywords, this command uses the default values.

Examples

# Enable interface dampening on interface GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] dampening

# Enable interface dampening on interface GigabitEthernet 1/0/1, and set the following parameters:

·     Half life time to 2 seconds.

·     Reuse value to 800.

·     Suppression threshold to 3000.

·     Maximum suppression interval to 5 seconds.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] dampening 2 800 3000 5

Related commands

·     display interface

default

Use default to restore the default settings for an Ethernet interface or subinterface.

Syntax

default

Views

Ethernet interface view

Ethernet subinterface view

Predefined user roles

network-admin

Usage guidelines

CAUTION

CAUTION:

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

 

This command might fail to restore the default settings for some commands because of command dependencies or system restrictions. You can use the display this command in interface view to identify these commands, and use their undo forms or follow the command reference to restore their default settings. If your restoration attempt still fails, follow the error message instructions to solve the problem.

Examples

# Restore the default settings for interface GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] default

# Restore the default settings for subinterface GigabitEthernet 1/0/1.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1.1

[Sysname-GigabitEthernet1/0/1.1] default

description

Use description to change the description of an interface.

Use undo description to restore the default.

Syntax

description text

undo description

Default

The description of an interface is the interface name plus Interface (for example, GigabitEthernet1/0/1 Interface).

Views

Ethernet interface view

Ethernet subinterface view

Predefined user roles

network-admin

Parameters

text: Specifies the interface description, a case-sensitive string of 1 to 255 characters.

Examples

# Change the description of interface GigabitEthernet 1/0/1 to lan-interface.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] description lan-interface

# Change the description of Ethernet subinterface GigabitEthernet 1/0/1.1 to subinterface1/0/1.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1.1

[Sysname-GigabitEthernet1/0/1.1] description subinterface1/0/1.1

display counters

Use display counters to display interface traffic statistics.

Syntax

display counters { inbound | outbound } interface [ interface-type [ interface-number | interface-number.subnumber ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

inbound: Displays inbound traffic statistics.

outbound: Displays outbound traffic statistics.

interface-type: Specifies an interface type.

interface-number: Specifies an interface number.

interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.

Usage guidelines

This command displays traffic statistics within a statistics polling interval specified by using the flow-interval command.

To clear the Ethernet interface traffic statistics, use the reset counters interface command. For more information, see "reset counters interface."

If you do not specify an interface type, this command displays traffic statistics for all interfaces that have traffic counters.

If you specify an interface type but do not specify an interface number or subinterface number, this command displays traffic statistics for all interfaces of the specified type.

If you specify an interface type and an interface or subinterface number, this command displays traffic statistics for the specified interface or subinterface.

Examples

# Display inbound traffic statistics for all GigabitEthernet interfaces.

<Sysname> display counters inbound interface gigabitethernet

Interface            Total (pkts)    Broadcast (pkts)    Multicast (pkts)  Err (pkts)

GE1/0/1                       100                 100                   0           0

GE1/0/2                         0                   0                   0           0

GE1/0/3                         0                   0                   0           0

GE1/0/4                         0                   0                   0           0

 

 Overflow: More than 14 digits (7 digits for column "Err").

       --: Not supported.

Table 1 Command output

Field

Description

Interface

Abbreviated interface name.

Total (pkts)

Total number of packets received or sent through the interface.

Broadcast (pkts)

Total number of broadcast packets received or sent through the interface.

Multicast (pkts)

Total number of multicast packets received or sent through the interface.

Err (pkts)

Total number of error packets received or sent through the interface.

Overflow: More than 14 digits (7 digits for column "Err")

The command displays Overflow when any of the following conditions exist:

·     The data length of an Err field value is greater than 7 decimal digits.

·     The data length of a non-Err field value is greater than 14 decimal digits.

--: Not supported

The statistical item is not supported.

 

Related commands

·     flow-interval

·     reset counters interface

display counters rate

Use display counters rate to display traffic rate statistics for interfaces in up state over the last statistics polling interval.

Syntax

display counters rate { inbound | outbound } interface [ interface-type [ interface-number | interface-number.subnumber ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

inbound: Displays inbound traffic rate statistics.

outbound: Displays outbound traffic rate statistics.

interface-type: Specifies an interface type.

interface-number: Specifies an interface number.

interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.

Usage guidelines

If you do not specify an interface type, this command displays traffic rate statistics for all up interfaces that have traffic counters over the last statistics polling interval.

If you specify an interface type, this command displays traffic rate statistics for all up interfaces of the specified type over the last statistics polling interval.

If an interface that you specify is always down over the last statistics polling interval, the system prompts that the interface does not support the command.

You can configure the statistics polling interval by using the flow-interval command.

Examples

# Display the inbound traffic rate statistics for all GigabitEthernet interfaces.

<Sysname> display counters rate inbound interface gigabitethernet

Usage: Bandwidth utilization in percentage

Interface            Usage (%)   Total (pps)   Broadcast (pps)   Multicast (pps)

GE1/0/1                     3           200               100               100

GE1/0/2                     5           300               200               100

GE1/0/3                     5           300               200               100

 

 Overflow: More than 14 digits.

       --: Not supported.

Table 2 Command output

Field

Description

Interface

Abbreviated interface name.

Usage (%)

Bandwidth usage (in percentage) of the interface over the last statistics polling interval.

Total (pkts/sec)

Average receiving or sending rate (in pps) for unicast packets over the last statistics polling interval.

Broadcast (pkts/sec)

Average receiving or sending rate (in pps) for broadcast packets over the last statistics polling interval.

Multicast (pkts/sec)

Average receiving or sending rate (in pps) for multicast packets over the last statistics polling interval.

Overflow: more than 14 decimal digits

The command displays Overflow if the data length of a statistical item is greater than 14 decimal digits.

--: not supported

The statistical item is not supported.

 

Related commands

·     flow-interval

·     reset counters interface

display ethernet statistics

Use display ethernet statistics to display the Ethernet module statistics.

Syntax

display ethernet statistics slot slot-number

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its member ID.

Examples

# (IRF-incapable devices.) Display the Ethernet module statistics.

<Sysname> display ethernet statistics

ETH receive packet statistics:

    Totalnum        : 10447          ETHIINum     : 4459

    SNAPNum         : 0              RAWNum       : 0

    LLCNum          : 0              UnknownNum   : 0

    ForwardNum      : 4459           ARP          : 0

    MPLS            : 0              ISIS         : 0

    ISIS2           : 0              IP           : 0

    IPV6            : 0

ETH receive error statistics:

    NullPoint       : 0              ErrIfindex   : 0

    ErrIfcb         : 0              IfShut       : 0

    ErrAnalyse      : 5988           ErrSrcMAC    : 5988

    ErrHdrLen       : 0

 

ETH send packet statistics:

    L3OutNum        : 211            VLANOutNum   : 0

    FastOutNum      : 155            L2OutNum     : 0

ETH send error statistics:

    MbufRelayNum    : 0              NullMbuf     : 0

    ErrAdjFwd       : 0              ErrPrepend   : 0

    ErrHdrLen       : 0              ErrPad       : 0

    ErrQoSTrs       : 0              ErrVLANTrs   : 0

    ErrEncap        : 0              ErrTagVLAN   : 0

    IfShut          : 0              IfErr        : 0

# (IRF-capable devices.) Display the Ethernet module statistics for IRF member device 2.

<Sysname> display ethernet statistics slot 2

ETH receive packet statistics:

    Totalnum        : 10447          ETHIINum     : 4459

    SNAPNum         : 0              RAWNum       : 0

    LLCNum          : 0              UnknownNum   : 0

    ForwardNum      : 4459           ARP          : 0

    MPLS            : 0              ISIS         : 0

    ISIS2           : 0              IP           : 0

    IPV6            : 0

ETH receive error statistics:

    NullPoint       : 0              ErrIfindex   : 0

    ErrIfcb         : 0              IfShut       : 0

    ErrAnalyse      : 5988           ErrSrcMAC    : 5988

    ErrHdrLen       : 0

 

ETH send packet statistics:

    L3OutNum        : 211            VLANOutNum   : 0

    FastOutNum      : 155            L2OutNum     : 0

ETH send error statistics:

    MbufRelayNum    : 0              NullMbuf     : 0

    ErrAdjFwd       : 0              ErrPrepend   : 0

    ErrHdrLen       : 0              ErrPad       : 0

    ErrQoSTrs       : 0              ErrVLANTrs   : 0

    ErrEncap        : 0              ErrTagVLAN   : 0

    IfShut          : 0              IfErr        : 0

Table 3 Output description

Field

Description

ETH receive packet statistics

Statistics about the Ethernet packets received on the Ethernet module.

Totalnum

Total number of received packets:

·     ETHIINum—Number of packets encapsulated by using Ethernet II.

·     SNAPNum—Number of packets encapsulated by using SNAP.

·     RAWNum—Number of packets encapsulated by using RAW.

·     LLCNum—Number of packets encapsulated by using LLC.

·     UnknownNum—Number of packets encapsulated by using unknown methods.

·     ForwardNum—Number of packets forwarded at Layer 2 or sent to the CPU.

·     ARP—Number of ARP packets.

·     MPLS—Number of MPLS packets. The device does not support this field in the current software version.

·     ISIS—Number of IS-IS packets. The device does not support this field in the current software version.

·     ISIS2—Number of large 802.3/802.2 frames encapsulated by using IS-IS. The device does not support this field in the current software version.

·     IP—Number of IP packets.

·     IPv6—Number of IPv6 packets.

ETH receive error statistics

Statistics about the error Ethernet packets in the outbound direction on the Ethernet module. Errors might be included in packets or occur during the receiving process. The items include:

·     NullPoint—Number of packets that include null pointers.

·     ErrIfindex—Number of packets that include incorrect interface indexes.

·     ErrIfcb—Number of packets that include incorrect interface control blocks.

·     IfShut—Number of packets that are being received when the interface is shut down.

·     ErrAnalyse—Number of packets that include packet parsing errors.

·     ErrSrcMAC—Number of packets that include incorrect source MAC addresses.

·     ErrHdrLen—Number of packets that include header length errors.

ETH send packet statistics

Statistics about the Ethernet packets sent by the Ethernet module:

·     L3OutNum—Number of packets sent out of Layer 3 Ethernet interfaces.

·     VLANOutNum—Number of packets sent out of VLAN interfaces.

·     FastOutNum—Number of packets fast forwarded.

·     L2OutNum—Number of packets sent out of Layer 2 Ethernet interfaces.

·     MbufRelayNum—Number of packets transparently sent.

ETH send error statistics

Statistics about the error Ethernet packets in the outbound direction on the Ethernet module:

·     NullMbuf—Number of packets with null pointers.

·     ErrAdjFwd—Number of packets with adjacency table errors.

·     ErrPrepend—Number of packets with extension errors.

·     ErrHdrLen—Number of packets with header length errors.

·     ErrPad—Number of packets with padding errors.

·     ErrQoSTrs—Number of packets that failed to be sent by QoS.

·     ErrVLANTrs—Number of packets that failed to be sent in VLANs.

·     ErrEncap—Number of packets that failed to be sent due to link header encapsulation failures.

·     ErrTagVLAN—Number of packets that failed to be sent due to VLAN tag encapsulation failures.

·     IfShut—Number of packets that are being sent when the interface is shut down.

·     IfErr—Number of packets with incorrect outgoing interfaces.

 

Related commands

reset ethernet statistics

display interface

Use display interface to display interface information.

Syntax

display interface [ interface-type [ interface-number | interface-number.subnumber ] ] [ brief [ description | down ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type: Specifies an interface type.

interface-number: Specifies an interface number.

interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.

brief: Displays brief interface information. If you do not specify this keyword, the command displays detailed interface information.

description: Displays complete interface descriptions. If you do not specify this keyword, the command displays only the first 27 characters of each interface description.

down: Displays information about interfaces in down state and the causes. If you do not specify this keyword, the command displays information about interfaces in all states.

Usage guidelines

If you do not specify an interface type, this command displays information about all interfaces except VA interfaces.

If you specify an interface type but do not specify an interface number or subinterface number, this command displays information about all interfaces of that type.

If you specify both the interface type and interface or subinterface number, this command displays information about the specified interface or subinterface.

Examples

# (WX2500 ACs.) Display information about Layer 3 interface GigabitEthernet 1/0/1.

<Sysname> display interface gigabitethernet1/0/1

GigabitEthernet1/0/1

Current state: Administratively DOWN

Line protocol state: DOWN

Description: GigabitEthernet1/0/1 Interface

Bandwidth: 1000000kbps

Maximum transmission unit: 1500

Internet protocol processing: Disabled

IP packet frame type: Ethernet II, hardware address: 3822-d666-bd0c

IPv6 packet frame type: Ethernet II, hardware address: 3822-d666-bd0c

Loopback is not set

Media type is twisted pair, promiscuous mode set

Port priority: 2

Unknown-speed mode, unknown-duplex mode

Last link flapping: 6 hours 39 minutes 28 seconds

Last clearing of counters: Never

 Last 300 second input:  0 packets/sec 0 bytes/sec  0%

 Last 300 second output: 0 packets/sec 0 bytes/sec  0%

 Input  (total): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, - pauses

 Input  (normal): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Input: 0 input errors, 0 runts, 0 giants, 0 throttles

          0 CRC, 0 frame, 0 overruns, - aborts

          - ignored, - parity errors

 Output  (total): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, - pauses

 Output  (normal): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Output: 0 output errors, - underruns, - buffer failures

          0 aborts, 0 deferred, 0 collisions, 0 late collisions

          - lost carrier, - no carrier

 Peak input rate: 0 bytes/sec, at 2013-07-07 16:07:11

 Peak output rate: 0 bytes/sec, at 2013-07-07 16:07:11

# Display detailed information about Layer 2 interface GigabitEthernet 1/0/1.

<Sysname> display interface gigabitethernet 1/0/1

GigabitEthernet1/0/1

Current state: DOWN

Line protocol state: DOWN

IP packet frame type: Ethernet II, hardware address: 000c-2963-b767

Description: GigabitEthernet1/0/1 Interface

Bandwidth: 100000kbps

Loopback is not set

Media type is twisted pair, promiscuous mode set

Unknown-speed mode, unknown-duplex mode

Link speed type is autonegotiation, link duplex type is autonegotiation

Flow-control is not enabled

Maximum frame length: 4000

Allow jumbo frame to pass

Broadcast max-ratio: 100%

Multicast max-ratio: 100%

Unicast max-ratio: 100%

PVID: 1

MDI type: Automdix

Port link-type: Access

 Tagged VLANs:   None

 UnTagged VLANs: 1

Port priority: 2

Last clearing of counters:  14:34:09 Tue 11/01/2011

 Peak input rate: 0 bytes/sec, at 2013-07-17 22:06:19

 Peak output rate: 0 bytes/sec, at 2013-07-17 22:06:19

 Last 300 second input:  0 packets/sec 0 bytes/sec -%

 Last 300 second output:  0 packets/sec 0 bytes/sec -%

 Input (total):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Input (normal):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Input:  0 input errors, 0 runts, 0 giants, 0 throttles

          0 CRC, 0 frame, 0 overruns, 0 aborts

          0 ignored, 0 parity errors

 Output (total): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Output (normal): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Output: 0 output errors, 0 underruns, 0 buffer failures

          0 aborts, 0 deferred, 0 collisions, 0 late collisions

          0 lost carrier, 0 no carrier

Table 4 Command output

Field

Description

Current state

State of the interface:

·     Administratively DOWN—The interface was shut down with the shutdown command.

·     DOWN—The interface is administratively up but physically down. There might not be a physical link present or the link has failed.

·     DOWN ( Link-Aggregation interface down )The aggregate interface to which the interface belongs was shut down with the shutdown command.

·     DOWN ( Tunnel-Bundle administratively down )—The tunnel bundle interface to which the interface belongs was shut down with the shutdown command. The device does not support this field in the current software version.

·     ETH-rddc Shutdown—The interface was shut down by the Reth module. The device does not support this field in the current software version.

·     IRF-link-down—The interface was shut down because IRF detected that the IRF link was down on the MDC of the IRF member device where the interface resides. The device does not support this field in the current software version.

·     mac-address moving downThe interface was shut down because of a MAC address move.

·     MAD ShutDownThe interface was shut down because the IRF fabric to which the interface belongs split and was in recovery state. The device does not support this field in the current software version.

·     Storm-ConstrainThe interface was shut down because the number of multicast, broadcast, or unknown unicast packets exceeds the threshold. The device does not support this field in the current software version.

·     STP DOWN—The interface was shut down by BPDU guard.

·     UP—The interface is both administratively and physically up.

Line protocol state

Data link layer state of the interface. The state is determined through parameter negotiation at the data link layer.

·     UP—The interface is up at the data link layer.

·     UP (spoofing)The data link layer protocol of the interface is UP. However, its link is an on-demand link or not present. This attribute is typical of Null interfaces and loopback interfaces.

·     DOWN—The data link layer protocol of the interface is down.

·     DOWN (protocol)The data link layer of the interface is shut down by one or more protocols. The protocol argument can be an arbitrary combination of these protocols: DLDP, OAM, LAGG, BFD, and MACSEC.

¡     When protocol contains DLDP, the data link layer of the interface is down because DLDP detected that the link was unidirectional. The device does not support this field in the current software version.

¡     When protocol contains OAM, the data link layer of the interface is down because OAM detected remote link failures. The device does not support this field in the current software version.

¡     When protocol contains LAGG, the data link layer of the interface is down because the aggregate interface does not have Selected ports. The device does not support this field in the current software version.

¡     When protocol contains BFD, the data link layer of the interface is down because BFD detected a link failure. The device does not support this field in the current software version.

¡     When protocol contains MACSEC, the data link layer of the interface is down because MACSEC failed to negotiate the encryption parameters. The device does not support this field in the current software version.

Bandwidth

Expected bandwidth of the interface.

Maximum transmission unit

MTU of the interface.

Internet protocol processing: Disabled

The interface cannot process IP packets.

Internet Address is 192.168.1.200/24 Primary

Primary IP address of the interface.

IP packet frame type

Ethernet framing format. PKTFMT_ETHNT_2 indicates that the frames are encapsulated in Ethernet II framing format.

hardware address

MAC address of the interface.

IPv6 packet frame type

IPv6 packet framing format.

Output queue

Information about the output queue.

Urgent queuing

Urgent queue.

Protocol queuing

Protocol queue.

FIFO queuing

FIFO queue.

Size

Number of packets in the queue.

Length

Queue length.

Discards

Number of discarded packets.

Loopback is set internal

An internal loopback test is running on the interface.

Loopback is set external

An external loopback test is running on the interface.

Loopback is not set

No loopback test is running on the interface.

10Mbps-speed mode

The interface is operating at 10 Mbps.

100Mbps-speed mode

The interface is operating at 100 Mbps.

1000Mbps-speed mode

The interface is operating at 1000 Mbps.

Unknown-speed mode

The speed of the interface is unknown because the speed negotiation fails or the interface is physically disconnected.

half-duplex mode

The interface is operating in half duplex mode.

full-duplex mode

The interface is operating in full duplex mode.

unknown-duplex mode

The duplex mode of the interface is unknown because the duplex mode negotiation fails or the interface is physically disconnected.

Link speed type is autonegotiation

The interface is configured with the speed auto command.

Link speed type is force link

The interface is manually configured with a speed (for example, 10 Mbps or 100 Mbps) by using the speed command.

link duplex type is autonegotiation

The interface is configured with the duplex auto command.

link duplex type is force link

The interface is manually configured with a duplex mode (for example, half or full) by using the duplex command.

Flow-control is not enabled

Generic flow control is disabled on the interface.

Maximum frame length

Maximum length of Ethernet frames allowed to pass through the interface.

Allow jumbo frame to pass

The interface allows jumbo frames to pass through.

Broadcast max-

Broadcast storm suppression threshold in ratio, pps, or kbps. The unit of the threshold depends on your configuration.

Multicast max-

Multicast storm suppression threshold in ratio, pps, or kbps. The unit of the threshold depends on your configuration.

Unicast max-

Unknown unicast storm suppression threshold in ratio, pps, or kbps. The unit of the threshold depends on your configuration.

PVID

Port VLAN ID (PVID) of the interface.

MDI type

MDIX mode of the interface:

·     automdix.

·     mdi.

·     mdix.

Port link-type

Link type of the interface:

·     access.

·     trunk.

·     hybrid.

Tagged VLANs

VLANs for which the interface sends packets without removing VLAN tags.

Untagged VLANs

VLANs for which the interface sends packets after removing VLAN tags.

Port priority

Priority of the interface.

Last link flapping

The amount of time that has elapsed since the most recent physical state change of the interface. This field displays Never if the interface has been physically down since device startup.

Last clearing of counters

Time when the reset counters interface command was last used to clear the interface statistics. This field displays Never if the reset counters interface command has never been used on the interface since device startup.

Last 300 second input:  0 packets/sec 0 bytes/sec 0%

Last 300 second output:  0 packets/sec 0 bytes/sec 0%

Average inbound or outbound traffic rate (in pps and Bps) in the last 300 seconds, and the ratio of the actual rate to the interface bandwidth.

A hyphen (-) indicates that the statistical item is not supported.

Input(total):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the inbound traffic statistics (in packets and bytes) for the interface. All inbound normal packets, abnormal packets, and normal pause frames were counted.

The four fields on the second line represent:

·     Number of inbound unicast packets.

·     Number of inbound broadcasts.

·     Number of inbound multicasts.

·     Number of inbound pause frames.

A hyphen (-) indicates that the statistical item is not supported.

Input(normal):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the inbound normal traffic and pause frame statistics (in packets and bytes) for the interface.

The four fields on the second line represent:

·     Number of inbound normal unicast packets.

·     Number of inbound normal broadcasts.

·     Number of inbound normal multicasts.

·     Number of inbound normal pause frames.

A hyphen (-) indicates that the statistical item is not supported.

input errors

Statistics of incoming error packets.

runts

Number of inbound frames meeting the following conditions:

·     Shorter than 64 bytes.

·     In correct format.

·     Containing valid CRCs.

giants

Number of inbound giants. Giants refer to frames larger than the maximum frame length supported on the interface.

For an Ethernet interface that does not permit jumbo frames, the maximum frame length is as follows:

·     1518 bytes (without VLAN tags).

·     1522 bytes (with VLAN tags).

For an Ethernet interface that permits jumbo frames, the maximum Ethernet frame length is set when you configure jumbo frame support on the interface.

throttles

Number of inbound frames that had a non-integer number of bytes.

CRC

Total number of inbound frames that had a normal length, but contained CRC errors.

frame

Total number of inbound frames that contained CRC errors and a non-integer number of bytes.

overruns

Number of packets dropped because the input rate of the port exceeded the queuing capability.

aborts

Total number of illegal inbound packets:

·     Fragment frames—CRC error frames shorter than 64 bytes. The length (in bytes) can be an integral or non-integral value.

·     Jabber frames—CRC error frames greater than the maximum frame length supported on the Ethernet interface (with an integral or non-integral length).

¡     For an Ethernet interface that does not permit jumbo frames, the maximum frame length is 1518 bytes (without VLAN tags) or 1522 bytes (with VLAN tags).

¡     For an Ethernet interface that permits jumbo frames, the maximum Ethernet frame length is set when you configure jumbo frame support on the interface.

·     Symbol error frames—Frames that contained a minimum of one undefined symbol.

·     Unknown operation code frames—Non-pause MAC control frames.

·     Length error frames—Frames whose 802.3 length fields did not match the actual frame length (46 to 1500 bytes).

ignored

Number of inbound frames dropped because the receiving buffer of the port ran low.

parity errors

Total number of frames with parity errors.

Output(total): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the outbound traffic statistics (in packets and bytes) for the interface. All outbound normal packets, abnormal packets, and normal pause frames were counted.

The four fields on the second line represent:

·     Number of outbound unicast packets.

·     Number of outbound broadcasts.

·     Number of outbound multicasts.

·     Number of outbound pause frames.

A hyphen (-) indicates that the statistical item is not supported.

Output(normal): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the outbound normal traffic and pause frame statistics (in packets and bytes) for the interface.

The four fields on the second line represent:

·     Number of outbound normal unicast packets.

·     Number of outbound normal broadcasts.

·     Number of outbound normal multicasts.

·     Number of outbound normal pause frames.

A hyphen (-) indicates that the statistical item is not supported.

output errors

Number of outbound packets with errors.

underruns

Number of packets dropped because the output rate of the interface exceeded the output queuing capability. This is a low-probability hardware anomaly.

buffer failures

Number of packets dropped because the transmitting buffer of the interface ran low.

aborts

Number of packets that failed to be transmitted, for example, because of Ethernet collisions.

deferred

Number of frames that the interface deferred to transmit because of detected collisions.

collisions

Number of frames that the interface stopped transmitting because Ethernet collisions were detected during transmission.

late collisions

Number of frames that the interface deferred to transmit after transmitting their first 512 bits because of detected collisions.

lost carrier

Number of carrier losses during transmission. This counter increases by one when a carrier is lost, and applies to serial WAN interfaces. The device does not support this field in the current software version.

no carrier

Number of times that the port failed to detect the carrier when attempting to send frames. This counter increases by one when a port failed to detect the carrier, and applies to serial WAN interfaces. The device does not support this field in the current software version.

Peak input rate

Peak rate of inbound traffic in Bps, and the time when the peak inbound traffic rate occurred.

Peak output rate

Peak rate of outbound traffic in Bps, and the time when the peak outbound traffic rate occurred.

 

# Display brief information about all interfaces.

<Sysname> display interface brief

Brief information on interfaces in route mode:                                 

Link: ADM - administratively down; Stby - standby                              

Protocol: (s) - spoofing                                                       

Interface            Link Protocol Primary IP      Description                 

CMTunnel1            DOWN DOWN     --                                          

InLoop0              UP   UP(s)    --                                          

Loop0                UP   UP(s)    --                                          

MGE0/0/0             UP   UP       192.168.100.66                              

NULL0                UP   UP(s)    --                                          

Tun0                 DOWN DOWN     --                                          

Tun1                 DOWN DOWN     --                                          

Tun2                 DOWN DOWN     --                                          

Tun99                DOWN DOWN     --                                          

Tun101               DOWN DOWN     --                                          

Vlan1                DOWN DOWN     --                                          

Vlan2                DOWN DOWN     --                                          

Vlan10               DOWN DOWN     10.1.1.1                                    

Vlan20               DOWN DOWN     --                                          

Vlan100              DOWN DOWN     --                                          

                                                                                

Brief information on interfaces in bridge mode:                                

Link: ADM - administratively down; Stby - standby                              

Speed: (a) - auto                                                               

Duplex: (a)/A - auto; H - half; F - full                                       

Type: A - access; T - trunk; H - hybrid                                        

Interface            Link Speed   Duplex Type PVID Description                  

BAGG1                DOWN auto    A      A    1                                

BAGG2                DOWN auto    A      A    20                               

BAGG3                DOWN auto    A      T    1                                 

GE1/0/1              DOWN auto    A      A    1                                

GE1/0/2              DOWN auto    A      T    1                                

GE1/0/3              DOWN auto    A      A    1                                

GE1/0/4              ADM  auto    A      A    1                                

GE1/0/5              DOWN auto    A      A    1                                

GE1/0/6              DOWN auto    A      A    1                                

GE1/0/7              DOWN auto    A      A    1                                

GE1/0/8              DOWN auto    A      A    1                                

XGE1/0/9             DOWN auto    A      A    1                                

XGE1/0/10            DOWN auto    A      A    1

# Display brief information about interface GigabitEthernet 1/0/3, including the complete description of the interface.

<Sysname> display interface gigabitethernet 1/0/3 brief description

Brief information on interfaces in bridge mode:

Link: ADM - administratively down; Stby - standby

Speed: (a) - auto

Duplex: (a)/A - auto; H - half; F - full

Type: A - access; T - trunk; H - hybrid

Interface            Link Speed   Duplex Type PVID Description

GE1/0/3              UP   100M(a) F(a)   A    1    link to router C

# Display information about interfaces in DOWN state and the causes.

<Sysname> display interface brief down

Brief information on interfaces in route mode:

Link: ADM - administratively down; Stby - standby

Interface            Link Cause

GE1/0/1              DOWN Not connected

 

Brief information on interfaces in bridge mode:

Link: ADM - administratively down; Stby - standby

Interface            Link Cause

GE1/0/2              DOWN Not connected

GE1/0/4              DOWN Not connected

GE1/0/5              DOWN Not connected

GE1/0/7              DOWN Not connected

Table 5 Command output

Field

Description

Brief information on interfaces in route mode:

Brief information about Layer 3 interfaces.

Link: ADM - administratively down; Stby - standby

Link status:

·     ADM—The interface has been shut down by the network administrator. To recover its physical layer state, use the undo shutdown command.

·     Stby—The interface is operating as a backup interface. To see the primary interface, use the display interface-backup state command.

Protocol: (s) – spoofing

This field displays UP (s), where s represents the spoofing flag, when the following conditions exist:

·     The data link layer protocol of the interface is UP.

·     The link of the interface is an on-demand link or not present.

This attribute is typical of interface Null 0 and loopback interfaces.

Interface

Interface name.

Link

Physical link state of the interface:

·     UP—The interface is physically up.

·     DOWN—The interface is physically down.

·     ADM—The interface has been administratively shut down. To bring up the interface, use the undo shutdown command.

·     Stby—The interface is a standby interface.

Protocol

Data link layer protocol state of the interface:

·     UP—The data link layer protocol of the interface is up.

·     DOWN—The data link layer protocol of the interface is down.

·     UP(s)—The data link layer protocol of the interface is up. However, the link is an on-demand link or not present. This value is typical of interface Null 0 and loopback interfaces.

Primary IP

Primary IP address of the interface. A hyphen (-) indicates that the interface is not configured with an IP address.

Description

Partial or complete interface description set by using the description command:

·     If you do not specify the description keyword for the display interface brief command, this field displays only the first 27 characters of the interface description.

·     If you specify the description keyword for the display interface brief command, this field displays the complete interface description.

Brief information of interfaces in bridge mode:

Brief information about Layer 2 interfaces.

Speed: (a) - auto

If the speed of an interface is automatically negotiated, the speed attribute of the interface includes the autonegotiation flag (the letter a in parentheses).

If an interface is configured to autonegotiate its speed but the autonegotiation has not started, its speed attribute is displayed as auto.

Duplex: (a)/A - auto; H - half; F – full

If the duplex mode of an interface is automatically negotiated, the duplex mode attribute of the interface includes the letter a in parentheses. H indicates the half duplex mode. F indicates the full duplex mode.

If an interface is configured to autonegotiate its duplex mode but the autonegotiation has not started, its duplex mode attribute is displayed as A.

Type: A - access; T - trunk; H – hybrid

Link type options for interfaces.

Speed

Interface rate, in bps.

Duplex

Duplex mode of the interface:

·     AAutonegotiation.

·     FFull duplex.

·     F(a)Autonegotiated full duplex.

·     HHalf duplex.

·     H(a)Autonegotiated half duplex.

Type

Link type of the interface:

·     AAccess.

·     HHybrid.

·     TTrunk.

PVID

Port VLAN ID.

Cause

Cause for the physical link state of an interface to be DOWN:

·     Administratively—The interface is manually shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command.

·     DOWN ( Link-Aggregation interface down )—The interface is a member port of an aggregate interface, and the aggregate interface is shut down.

·     DOWN (Loopback detection down)The interface is shut down because the loopback detection module has detected loops.

·     DOWN ( Monitor-Link uplink down )The interface is shut down because the monitor link module has detected that the uplink is down.

·     IRF-link-downWhen IRF detects that the IRF link is down on an MDC of a member device, the physical interfaces except the excluded ports on the MDC are physically down. The device does not support this field in the current software version.

·     MAD ShutDownAfter an IRF split, all interfaces except the excluded ports in the IRF in recovery state are physically down. The device does not support this field in the current software version.

·     Not connected—The interface is down because no physical connection exists (possibly because the network cable is disconnected or faulty).

·     Storm-ConstrainThe interface is shut down because the unknown unicast traffic, multicast traffic, or broadcast traffic exceeds the upper threshold. The device does not support this field in the current software version.

·     STP DOWNThe interface is shut down by the STP BPDU guard function.

·     Port Security Disabled—The interface is shut down by the intrusion detection mechanism because the port receives illegal packets.

·     Standby—The interface is in Standby state.

 

Related commands

reset counters interface

display packet-drop

Use display packet-drop to display information about packets dropped on an interface or multiple interfaces.

Syntax

display packet-drop { interface [ interface-type [ interface-number ] ] | summary }

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type: Specifies an interface type. If you do not specify an interface type, this command displays information about dropped packets on all interfaces on the device.

interface-number: Specifies an interface number. If you specify an interface type only, this command displays information about dropped packets on the specified type of interfaces.

summary: Displays the summary of dropped packets on all interfaces.

Examples

# Display information about dropped packets on GigabitEthernet 1/0/1.

<Sysname> display packet-drop interface gigabitethernet 1/0/1

GigabitEthernet1/0/1:

Packets dropped due to full GBP or insufficient bandwidth: 301

Packets dropped due to Fast Filter Processor (FFP): 261

Packets dropped due to STP non-forwarding state: 321

Packets dropped due to rate-limit: 143

Packets dropped due to broadcast-suppression: 301

Packets dropped due to unicast-suppression: 215

Packets dropped due to multicast-suppression: 241

Packets dropped due to Tx packet aging: 246

# Display the summary of dropped packets on all interfaces.

<Sysname> display packet-drop summary

All interfaces:

  Packets dropped due to full GBP or insufficient bandwidth: 301

  Packets dropped due to Fast Filter Processor (FFP): 261

  Packets dropped due to STP non-forwarding state: 321

  Packets dropped due to rate-limit: 143

  Packets dropped due to broadcast-suppression: 301

  Packets dropped due to unicast-suppression: 215

  Packets dropped due to multicast-suppression: 241

  Packets dropped due to Tx packet aging: 246

Table 6 Command output

Field

Description

Packets dropped due to full GBP or insufficient bandwidth

Packets that are dropped because the buffer is used up or the bandwidth is insufficient.

Packets dropped due to Fast Filter Processor (FFP)

Packets that are filtered out.

Packets dropped due to STP non-forwarding state

Packets that are dropped because STP is in the non-forwarding state.

Packets dropped due to rate-limit

Packets that are dropped due to the rate limit set on the device.

Packets dropped due to broadcast-suppression

Packets that are dropped due to broadcast suppression. The device does not support this field in the current software version.

Packets dropped due to unicast-suppression

Packets that are dropped due to unknown unicast suppression. The device does not support this field in the current software version.

Packets dropped due to multicast-suppression

Packets that are dropped due to multicast suppression. The device does not support this field in the current software version.

Packets dropped due to Tx packet aging

Outbound packets that are timed out.

 

duplex

Use duplex to set the duplex mode for an Ethernet interface.

Use undo duplex to restore the default.

Syntax

duplex { auto | full | half }

undo duplex

Default

10-GE interfaces operate in full duplex mode, and all other types of Ethernet interfaces operate in autonegotiation mode.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

auto: Configures the interface to autonegotiate the duplex mode with the peer.

full: Configures the interface to operate in full duplex mode. In this mode, the interface can receive and transmit packets simultaneously.

half: Configures the interface to operate in half duplex mode. In this mode, the interface can only receive or transmit packets at a given time.

Usage guidelines

The WX3010H and WX3024H devices do not support 100-Mbps half duplex mode.

Examples

# Configure interface GigabitEthernet 1/0/1 to operate in full duplex mode.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] duplex full

flow-control

Use flow-control to enable TxRx-mode generic flow control on an Ethernet interface.

Use undo flow-control to disable TxRx-mode generic flow control on the Ethernet interface.

Syntax

flow-control

undo flow-control

Default

TxRx-mode generic flow control is disabled on an Ethernet interface.

Views

Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

The following matrix shows the command and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

No

WX2500H series

WX2510H

WX2540H

WX2560H

No

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

Yes

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

Yes

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

With TxRx-mode generic flow control configured, an interface can both send and receive flow control frames:

·     When congested, the interface sends a flow control frame to its peer.

·     Upon receiving a flow control frame from the peer, the interface suspends sending packets.

To implement flow control on a link, enable generic flow control at both ends of the link.

Examples

# Enable TxRx-mode generic flow control on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] flow-control

flow-control receive enable

Use flow-control receive enable to enable Rx-mode generic flow control on an Ethernet port.

Use undo flow-control to disable Rx-mode generic flow control on an Ethernet port.

Syntax

flow-control receive enable

undo flow-control

Default

Rx-mode generic flow control is disabled on Ethernet interfaces.

Views

Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

The following matrix shows the command and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

No

WX2500H series

WX2510H

WX2540H

WX2560H

No

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

Yes:

·     WX3024H-L

·     WX3010H-L

No:

·     WX3010H

·     WX3010H-X

·     WX3024H

·     WX3024H-F

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

Yes

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

With Rx-mode flow control enabled, an interface can receive but cannot send flow control frames.

·     When the interface receives a flow control frame from its peer, it suspends sending packets to the peer.

·     When traffic congestion occurs on the interface, it cannot send flow control frames to the peer.

To handle unidirectional traffic congestion on a link, configure the flow-control receive enable command at one end, and the flow-control command at the other. To enable both ends of the link to handle traffic congestion, configure the flow-control command at both ends.

Examples

# Enable Rx-mode generic flow control on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] flow-control receive enable

flow-interval

Use flow-interval to set the statistics polling interval.

Use undo flow-interval to restore the default.

Syntax

flow-interval interval

undo flow-interval

Default

The statistics polling interval is 300 seconds.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

interval: Sets the statistics polling interval, in seconds. The interval is in the range of 5 to 300 and must be a multiple of 5.

Examples

# Set the statistics polling interval to 100 seconds on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] flow-interval 100

interface

Use interface to enter interface or subinterface view.

Syntax

interface interface-type { interface-number | interface-number.subnumber }

Views

System view

Predefined user roles

network-admin

Parameters

interface-type: Specifies an interface type.

interface-number: Specifies an interface number.

interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.

Usage guidelines

When the interface-number.subnumber argument is specified, and the specified subinterface does not exist, this command creates the subinterface and enters subinterface view.

Examples

# Enter GigabitEthernet 1/0/1 interface view.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1]

# Create Ethernet subinterface GigabitEthernet 1/0/1.1 and enter GigabitEthernet 1/0/1.1 subinterface view.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1.1

[Sysname-GigabitEthernet1/0/1.1]

jumboframe enable

Use jumboframe enable to allow jumbo frames within the specified length to pass through.

Use undo jumboframe enable to prevent jumbo frames from passing through.

Syntax

jumboframe enable [ value ]

undo jumboframe enable

Default

The device allows jumbo frames within a specific length to pass through.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

value: Sets the maximum length (in bytes) of Ethernet frames that are allowed to pass through. The following matrix shows the value ranges for the value argument:

 

Hardware series

Model

Value range

WX1800H series

WX1804H

WX1810H

WX1820H

1518 to 4000

WX2500H series

WX2510H

WX2540H

WX2560H

1518 to 4000:

·     WX2510H

·     WX2540H

1700 to 4000: WX2560H

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WA3024H

WX3024H-L

WA3024H-F

1700 to 4000:

·     WX3010H

·     WX3010H-X

·     WA3024H

·     WA3024H-F

1700 to 4080:

·     WX3010H-L

·     WX3024H-L

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

1700 to 4000

WX5500E series

WX5510E

1700 to 4000

WX5540E

1700 to 3996

WX5500H series

WX5540H

WX5560H

WX5580H

1700 to 3996

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

1700 to 3996

 

Usage guidelines

If you set the value argument multiple times, the most recent configuration takes effect.

Examples

# Allow jumbo frames to pass through GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] jumboframe enable

loopback

CAUTION

CAUTION:

After you enable loopback testing on an Ethernet interface, the interface does not forward data traffic.

 

Use loopback to enable loopback testing on an Ethernet interface.

Use undo loopback to disable loopback testing on an Ethernet interface.

Syntax

loopback { external | internal }

undo loopback

Default

Loopback testing is disabled on an Ethernet interface.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

external: Enables external loopback testing on the Ethernet interface.

internal: Enables internal loopback testing on the Ethernet interface.

Usage guidelines

The shutdown and loopback commands are exclusive with each other.

After you enable loopback testing on an Ethernet interface, the Ethernet interface switches to full duplex mode. After you disable loopback testing, the Ethernet interface restores to its duplex setting.

Examples

# Enable internal loopback testing on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] loopback internal

multicast-suppression

Use multicast-suppression to enable multicast storm suppression and set the multicast storm suppression threshold.

Use undo multicast-suppression to disable multicast storm suppression.

Syntax

multicast-suppression { ratio | pps max-pps | kbps max-kbps }

undo multicast-suppression

Default

Ethernet interfaces do not suppress multicast traffic.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

ratio: Sets the multicast suppression threshold as a percentage of the interface bandwidth. The value range for this argument (in percentage) is 0 to 100. A smaller value means that less multicast traffic is allowed to pass through.

pps max-pps: Specifies the maximum number of multicast packets that the interface can forward per second. The value range for the max-pps argument (in pps) is 0 to 1.4881 × the interface bandwidth.

kbps max-kbps: Specifies the maximum number of kilobits of multicast traffic that the Ethernet interface can forward per second. The value range for this argument (in kbps) is 0 to the interface bandwidth.

Usage guidelines

The following matrix shows the command and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

No

WX2500H series

WX2510H

WX2540H

WX2560H

No

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

Yes:

·     WX3010H

·     WX3024H

·     WX3024H-F

No:

·     WX3010H-X

·     WX3010H-L

·     WX3024H-L

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

No

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

The multicast storm suppression feature limits the size of multicast traffic to a threshold on an interface. When the multicast traffic on the interface exceeds this threshold, the system drops packets until the traffic drops below this threshold.

The configured suppression threshold value in pps or kbps might be converted into a multiple of a step supported by the chip. As a result, the effective suppression threshold might be different from the configured one. To determine the suppression threshold that takes effect, see the prompts on the device.

Examples

# Set the multicast storm suppression threshold to 10000 kbps on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] multicast-suppression kbps 10000

The actual value is 10048 on port GigabitEthernet1/0/1 currently.

The output shows that the value that takes effect is 10048 kbps (157 times of 64), because the chip only supports step 64.

Related commands

broadcast-suppression

unicast-suppression

port link-mode

Use port link-mode to change the link mode of an Ethernet interface.

Use undo port link-mode to restore the default.

Syntax

port link-mode { bridge | route }

undo port link-mode

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

bridge: Specifies the Layer 2 mode.

route: Specifies the Layer 3 mode.

Usage guidelines

The following matrix shows the command and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

Yes

WX2500H series

WX2510H

WX2540H

WX2560H

Yes

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

No

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

No

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

Interfaces operate differently depending on the hardware structure. For a device:

·     Some Ethernet interfaces can operate only as Layer 3 Ethernet interfaces (in route mode).

·     Some Ethernet interfaces can operate either as Layer 2 or Layer 3 Ethernet interfaces. You can use this command to set the link mode to bridge or route for these Ethernet interfaces.

Changing the link mode of an Ethernet interface also restores all commands except shutdown on the Ethernet interface to their defaults in the new link mode.

Examples

# Configure GigabitEthernet 1/0/1 to operate in Layer 2 mode.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] port link-mode bridge

reset counters interface

Use reset counters interface to clear the Ethernet interface or subinterface statistics.

Syntax

reset counters interface [ interface-type [ interface-number | interface-number.subnumber ] ]

Views

User view

Predefined user roles

network-admin

Parameters

interface-type: Specifies an interface type.

interface-number: Specifies an interface number.

interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.

Usage guidelines

Use this command to clear history statistics if you want to collect traffic statistics for a specific time period.

If you do not specify an interface type, this command clears statistics for all interfaces except VA interfaces.

If you specify only the interface type, this command clears statistics for all interfaces of that type.

If you specify both the interface type and the interface or subinterface number, this command clears statistics for the specified interface or subinterface.

Examples

# Clear the statistics for GigabitEthernet 1/0/1.

<Sysname> reset counters interface gigabitethernet 1/0/1

Related commands

·     display interface

·     display counters interface

·     display counters rate interface

reset ethernet statistics

Use reset ethernet statistics to clear the Ethernet module statistics.

Syntax

reset ethernet statistics [ slot slot-number ]

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command clears statistics for all IRF member devices.

Examples

# Clear the Ethernet module statistics for IRF member device 2.

<Sysname> reset ethernet statistics slot 2

Related commands

display ethernet statistics

reset packet-drop interface

Use reset packet-drop interface to clear the dropped packet statistics for an interface or multiple interfaces.

Syntax

reset packet-drop interface [ interface-type [ interface-number ] ]

Views

User view

Predefined user roles

network-admin

Parameters

interface-type: Specify an interface type. If you do not specify an interface type, this command clears dropped packet statistics for all interfaces on the device.

interface-number: Specify an interface number. If you do not specify this argument, the command clears dropped packet statistics for all interfaces of the specified type.

Examples

# Clear dropped packet statistics for GigabitEthernet 1/0/1.

<Sysname> reset packet-drop interface gigabitethernet 1/0/1

# Clear dropped packet statistics for all interfaces.

<Sysname> reset packet-drop interface

Related commands

display packet-drop

shutdown

Use shutdown to shut down an Ethernet interface or subinterface.

Use undo shutdown to bring up an Ethernet interface or subinterface.

Syntax

shutdown

undo shutdown

Default

An Ethernet interface or subinterface is up.

Views

Ethernet interface view

Ethernet subinterface view

Predefined user roles

network-admin

Usage guidelines

Some interface configurations might require an interface restart before taking effect.

The shutdown and loopback commands are exclusive with each other.

Examples

# Shut down and then bring up GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] shutdown

[Sysname-GigabitEthernet1/0/1] undo shutdown

# Shut down and then bring up GigabitEthernet 1/0/1.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1.1

[Sysname-GigabitEthernet1/0/1.1] shutdown

[Sysname-GigabitEthernet1/0/1.1] undo shutdown

speed

Use speed to set the speed of an Ethernet interface.

Use undo speed to restore the default.

Syntax

speed { 100 | 1000 | 10000 | auto }

undo speed

Default

An Ethernet interface automatically negotiates a speed with its peer.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

100: Sets the interface speed to 100 Mbps. The following matrix shows the keyword and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

Yes

WX2500H series

WX2510H

WX2510H-F

WX2540H

WX2540H-F

WX2560H

Yes

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

Yes

WX3500H series

WX3508H

WX3510H

WX3520H

WX3520H-F

WX3540H

Yes

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

Yes

 

1000: Sets the interface speed to 1000 Mbps.

10000: Sets the interface speed to 10000 Mbps. The following matrix shows the keyword and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

No

WX2500H series

WX2510H

WX2540H

WX2560H

No

WX3000H series

WX3010H

WX3010H-L

WX3010H-X

WX3024H-L

WX3024H

WX3024H-F

No:

·     WX3010H

·     WX3010H-L

·     WX3024H-L

Yes:

·     WX3010H-X

·     WX3024H

·     WX3024H-F

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

No

WX5500E series

WX5510E

WX5540E

Yes

WX5500H series

WX5540H

WX5560H

WX5580H

Yes

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

Yes

 

auto: Enables the interface to negotiate a speed with its peer.

Usage guidelines

The WX3010H and WX3024H devices do not support 100-Mbps half duplex mode.

For an Ethernet copper port, use the speed command to set its speed to match the speed of the peer interface.

For a fiber port, use the speed command to set its speed to match the rate of a transceiver module.

Examples

# Configure GigabitEthernet 1/0/1 to autonegotiate the speed.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] speed auto

unicast-suppression

Use unicast-suppression to enable unknown unicast storm suppression and set the unknown unicast storm suppression threshold.

Use undo unicast-suppression to disable unknown unicast storm suppression.

Syntax

unicast-suppression { ratio | pps max-pps | kbps max-kbps }

undo unicast-suppression

Default

Ethernet interfaces do not suppress unknown unicast traffic.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

ratio: Sets the unknown unicast suppression threshold as a percentage of the interface bandwidth. The value range for this argument (in percentage) is 0 to 100. A smaller value means that less unknown unicast traffic is allowed to pass through.

pps max-pps: Specifies the maximum number of unknown unicast packets that the interface can forward per second. The value range for the max-pps argument (in pps) is 0 to 1.4881 × the interface bandwidth.

kbps max-kbps: Specifies the maximum number of kilobits of unknown unicast traffic that the Ethernet interface can forward per second. The value range for this argument (in kbps) is 0 to the interface bandwidth.

Usage guidelines

The following matrix shows the command and hardware compatibility:

 

Hardware series

Model

Command compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

No

WX2500H series

WX2510H

WX2540H

WX2560H

No

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

Yes:

·     WX3010H

·     WX3024H

·     WX3024H-F

No:

·     WX3010H-X

·     WX3010H-L

·     WX3024H-L

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

No

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

The unknown unicast storm suppression feature limits the size of unknown unicast traffic to a threshold on an interface. When the unknown unicast traffic on the interface exceeds this threshold, the system discards packets until the unknown unicast traffic drops below this threshold.

The configured suppression threshold value in pps or kbps might be converted into a multiple of a step supported by the chip. As a result, the effective suppression threshold might be different from the configured one. To determine the suppression threshold that takes effect, see the prompts on the device.

Examples

# Set the unknown unicast storm suppression threshold to 10000 kbps on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] unicast-suppression kbps 10000

The actual value is 10048 on port GigabitEthernet1/0/1 currently.

The output shows that the value that takes effect is 10048 kbps (157 times of 64), because the chip only supports step 64.

Related commands

broadcast-suppression

multicast-suppression

Layer 3 Ethernet interface or subinterface commands

The following matrix shows the Layer 3 Ethernet interface/subinterface and hardware compatibility:

 

Hardware series

Model

Feature compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

Yes

WX2500H series

WX2510H

WX2540H

WX2560H

Yes

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-F

WX3024H-L

Yes:

·     WX3010H

·     WX3024H

·     WX3024H-F

No:

·     WX3010H-X

·     WX3010H-L

·     WX3024H-L

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

No

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

mac-address

Use mac-address to set the MAC address of an Ethernet interface.

Use undo mac-address to restore the default.

Syntax

mac-address mac-address

undo mac-address

Default

The default setting for this command varies by device model.

Views

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

mac-address: Specifies a MAC address in the format of H-H-H.

Usage guidelines

When you set a MAC address for a Layer 3 Ethernet subinterface, select a MAC address different from that of the main interface.

Examples

# Set the MAC address of GigabitEthernet 1/0/1 to 0001-0001-0001.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mac-address 1-1-1

mtu

Use mtu to set the MTU for an Ethernet interface or subinterface.

Use undo mtu to restore the default.

Syntax

mtu size

undo mtu

Default

The following matrix shows the default values for the size argument:

 

Hardware series

Model

Default

WX1800H series

WX1804H

WX1810H

WX1820H

1500

WX2500H series

WX2510H

WX2540H

WX2560H

1500:

WX2510H

WX2560H

1600: WX2540H

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

1500:

·     WX3010H

·     WX3024H

·     WX3024H-F

Not supported:

·     WX3010H-X

·     WX3010H-L

·     WX3024H-L

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

Not supported.

WX5500E series

WX5510E

WX5540E

Not supported.

WX5500H series

WX5540H

WX5560H

WX5580H

Not supported.

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

Not supported.

 

Views

Layer 3 Ethernet interface view

Layer 3 Ethernet subinterface view

Predefined user roles

network-admin

Parameters

size: Sets the MTU in bytes. The following matrix shows the value ranges for the size argument:

 

Hardware series

Model

Value range

WX1800H series

WX1804H

WX1810H

WX1820H

46 to 1560

WX2500H series

WX2510H

WX2540H

WX2560H

46 to 1560

WX3000H series

WX3010H

WX3024H

WX3024H-F

46 to 1560

WX3010H-X

WX3010H-L

WX3024H-L

N/A

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

N/A

WX5500E series

WX5510E

WX5540E

N/A

WX5500H series

WX5540H

WX5560H

WX5580H

N/A

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

N/A

 

Examples

# Set the MTU to 1430 bytes for Layer 3 Ethernet interface GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mtu 1430

# Set the MTU to 1430 bytes for Layer 3 Ethernet subinterface GigabitEthernet 1/0/1.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1.1

[Sysname-GigabitEthernet1/0/1.1] mtu 1430