Table of Contents

1 Ethernet Interface Configuration Commands· 1-1

General Ethernet Interface/Subinterface Configuration Commands· 1-1

combo enable· 1-1

description· 1-1

display brief interface· 1-2

display interface· 1-4

duplex· 1-8

flag sdh· 1-9

flow-control 1-9

interface· 1-10

loopback· 1-11

port-mode· 1-11

reset counters interface· 1-12

shutdown· 1-12

speed· 1-13

Layer 3 Ethernet Interface/Subinterface Configuration Commands· 1-14

mtu· 1-14

sub-interface rate-statistic· 1-15

timer hold· 1-15

VE Interface Configuration Commands· 1-16

display interface virtual-ethernet 1-16

interface virtual-ethernet 1-17

mac-address· 1-18

 

General Ethernet Interface/Subinterface Configuration Commands

combo enable

Syntax

combo enable { copper | fiber }

View

Ethernet interface view (the port should be a Combo Port)

Default Level

2: System level

Parameters

copper: Specifies the Combo port to operate as an electrical port.

fiber: Specifies the Combo port to operate as an optical port.

Description

Use the combo enable command to specify the state of a Combo port. When one port is enabled, the other will be automatically disabled.

By default, a Combo port operates as an electrical port.

Examples

# Specify GigabitEthernet 1/0 to operate as an electrical port (assuming that the port is a Combo port).

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] combo enable copper

# Specify GigabitEthernet 1/0 to operate as an optical port (assuming that the port is a Combo port).

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] combo enable fiber

description

Syntax

description text

undo description

View

Ethernet interface view, Ethernet subinterface view

Default Level

2: System level

Parameters

text: Description of an Ethernet interface, a string of 1 to 80 characters. Currently, the device supports the following types of characters or symbols: standard English characters (numbers and case-sensitive letters), special English characters, spaces, and other characters or symbols that conform to the Unicode standard.

 

 

Description

Use the description command to configure the description of the current Ethernet interface/subinterface.

Use the undo description command to restore the default.

By default, the description of an Ethernet interface is the interface name followed by the word interface, GigabitEthernet1/0 Interface for example.

Related commands: display interface.

Examples

# Configure the description of Ethernet subinterface GigabitEthernet 1/0.1 as l2-subinterface1/0.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0.1

[Sysname-GigabitEthernet1/0.1] description l2-subinterface1/0.1

display brief interface

Syntax

display brief interface [ interface-type [ interface-number | interface-number.subnumber ] ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default Level

1: Monitor level

Parameters

interface-type: Type of a specified interface.

interface-number: Number of a specified interface.

interface-number.subnumber: Subinterface number, where interface-number is an interface number; subnumber is the number of a subinterface created under the interface. The value range of subnumber is 1 to 4094.

|: Uses a regular expression to filter output information. For detailed description on regular expression, refer to Basic System Configuration in the System Volume.

begin: Displays the line that matches the regular expression and all the subsequent lines.

exclude: Displays the lines that do not match the regular expression.

include: Displays the lines that match the regular expression.

regular-expression: Regular expression, a string of 1 to 256 characters. Note that this argument is case-sensitive.

Description

Use the display brief interface command to display brief interface information.

l          If neither interface type nor interface number is specified, all interface information will be displayed;

l          If only interface type is specified, then only information of this particular type of interface will be displayed.

l          If both interface type and interface number are specified, then only information of the specified interface will be displayed.

Related commands: interface.

Examples

# Display brief information of interface(s).

<Sysname> display brief interface

The brief information of interface(s) under route mode:

Interface          Link      Protocol-link  Protocol type    Main IP

GE1/0              UP        DOWN           ETHERNET         --

GE1/1              UP        DOWN           ETHERNET         --

NULL0              UP        UP(spoofing)   NULL             --

S2/0               DOWN      DOWN           PPP              --

S2/1               DOWN      DOWN           PPP              --

# Display brief interface information that contains the string “UP”.

<Sysname> display brief interface | include UP

The brief information of interface(s) under route mode:

Interface            Link      Protocol-link  Protocol type    Main IP

GE0/1/0              UP        DOWN           ETHERNET         --

GE0/1/1              UP        DOWN           ETHERNET         --

NULL0                UP        UP(spoofing)   NULL             --

Table 1-1 Description on the fields of the display brief interface command

Field	Description
The brief information of interface(s) under route mode:	Brief information of interface(s) in route mode
Interface	Abbreviated interface name
Link	Interface physical link state, which can be up or down
Protocol-link	Interface protocol link state, which can be up or down
Protocol type	Interface protocol type
Main IP	Main IP

 

display interface

Syntax

display interface [ interface-type [ interface-number | interface-number.subnumber ] ]

View

Any view

Default Level

1: Monitor level

Parameters

interface-type: Type of a specified interface.

interface-number: Number of a specified interface.

interface-number.subnumber: Subinterface number, where interface-number is an interface number; subnumber is the number of a subinterface created under the interface. The value of subnumber ranges from 1 to 4094.

Description

Use the display interface command to display the current state of a specified interface and related information.

l          If neither interface type nor interface number is specified, all interface information is displayed;

l          If only interface type is specified, then only information of this particular type of interface is displayed.

l          If both interface type and interface number are specified, then only information of the specified interface is displayed.

Related commands: interface.

Examples

# Display the current state of Layer 3 interface GigabitEthernet 1/0 and related information.

<Sysname> display interface GigabitEthernet 1/0

GigabitEthernet1/0 current state: Administratively DOWN

Line protocol current state: DOWN

Description: GigabitEthernet1/0 Interface

The Maximum Transmit Unit is 1500, Hold timer is 10(sec)

Internet protocol processing : disabled

IP Packet Frame Type: PKTFMT_ETHNT_2,  Hardware Address: 000f-e200-0000

IPv6 Packet Frame Type: PKTFMT_ETHNT_2,  Hardware Address: 000f-e200-0000

Media type is twisted pair, loopback not set, promiscuous mode not set

1000Mb/s, Full-duplex, link type is autonegotiation

Output flow-control is disabled, input flow-control is disabled

Output queue : (Urgent queuing : Size/Length/Discards)  0/50/0

Output queue : (Protocol queuing : Size/Length/Discards)  0/500/0

Output queue : (FIFO queuing : Size/Length/Discards)  0/75/0

Last clearing of counters: Never

    Last 300 seconds input rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec

    Last 300 seconds output rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec

    Input: 0 packets, 0 bytes, 0 buffers, 0 no buffers

           0 broadcasts, 0 multicasts, 0 pauses

           0 errors, 0 runts, 0 giants

           0 crc, 0 align errors, 0 overruns

           0 dribbles, 0 drops

    Output:0 packets, 0 bytes, 0 buffers

           0 broadcasts, 0 multicasts, 0 pauses

Table 1-2 display interface (in route mode) command output description

Field	Description
GigabitEthernet1/0 current state	Interface physical link state
Line protocol current state	Interface protocol link state
Description	The description of an Ethernet interface
The Maximum Transmit Unit	The Maximum Transmit Unit (MTU)
Hold timer is	Hold timer of link state
Internet protocol processing	IP packet processing: disabled indicates that IP packets cannot be processed. For an interface configured with an IP address, this field is Internet Address is.
IP Packet Frame Type, Hardware Address	IP packet frame type, hardware address
IPv6 Packet Frame Type, Hardware Address	IPv6 packet frame type, hardware address
Output queue (Urgent queue : Size/Length/Discards)	Output queue (current message number in the urgent queue/ maximum number of messages allowed in the urgent queue/number of discarded messages)
Output queue (Protocol queue : Size/Length/Discards)	Output queue (current message number in the protocol queue/ maximum number of messages allowed in the protocol queue/number of discarded messages)
Output queue (FIFO queuing : Size/Length/Discards)	Output queue (current message number in the FIFO queue/ maximum number of messages allowed in the FIFO queue/number of discarded messages)
Last 300 seconds input rate	Average input rate over the last 300 seconds: bytes/sec, bits/sec, packets/sec
Last 300 seconds output rate	Average output rate over the last 300 seconds:  bytes/sec, bits/sec, packets/sec
Input	Input packets
Output	Output packets

 

# Display the current state of Layer 2 interface Ethernet 1/0 and related information.

<Sysname> display interface ethernet 1/0

Ethernet1/0 current state: DOWN

 IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e200-8048

 Description: Ethernet1/0 Interface

 Loopback is not set

 Media type is twisted pair, port hardware type is 100_BASE_TX

 Unknown-speed mode, unknown-duplex mode

 Link speed type is autonegotiation, link duplex type is autonegotiation

 Flow-control is not enabled

 The Maximum Frame Length is 9022

 Broadcast MAX-ratio: 100%

 Unicast MAX-ratio: 100%

 Multicast MAX-ratio: 100%

 Allow jumbo frame to pass

 PVID: 100

 Mdi type: auto

 Port link-type: access

  Tagged   VLAN ID : none

  Untagged VLAN ID : 100

 Port priority: 0

 Last 300 seconds input:  6 packets/sec 678 bytes/sec     20%

 Last 300 seconds output:  1 packets/sec 179 bytes/sec     17%

 Input (total):  61745144 packets, 12152212250 bytes

          47519150 broadcasts, 12121681 multicasts

 Input (normal):  61745144 packets, - bytes

          47519150 broadcasts, 12121681 multicasts

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

          0 CRC, 0 frame, - overruns, 0 aborts

          - ignored, - parity errors

 Output (total): 1395522 packets, 183608303 bytes

          13 broadcasts, 1273860 multicasts, 0 pauses

 Output (normal): 1395522 packets, - bytes

          13 broadcasts, 1273860 multicasts, 0 pauses

 Output: 0 output errors, - underruns, 1 buffer failures

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

          0 lost carrier, - no carrier

Table 1-3 display interface command (in bridge mode) output description

Field	Description
Ethernet1/0 current state	Current physical link state of the Ethernet interface
IP Packet Frame Type	Frame type of the Ethernet interface
Hardware address	Hardware address
Description	Description of the interface
Loopback is not set	Loopback is not configured.
Unknown-speed mode	Unknown-speed mode, in which mode speed is negotiated between the current host and the peer.
unknown-duplex mode	Unknown-duplex mode, in which mode speed is negotiated between the current host and the peer.
Link speed type is autonegotiation	Link speed type is autonegotiation.
link duplex type is autonegotiation	Link duplex type is autonegotiation.
Flow-control is not enabled	Flow-control is not enabled.
The Maximum Frame Length	The maximum frame length allowed on an interface
Broadcast-suppression ratio(%)	Broadcast storm suppression ratio (the maximum ratio of allowed number of broadcast packets to overall traffic through an interface)
Unicast MAX-ratio	Unicast storm suppression ratio (the maximum ratio of allowed number of unknown unicast packets to overall traffic over an interface)
Multicast MAX-ratio	Multicast storm suppression ratio (the maximum ratio of allowed number of multicast packets to overall traffic through an interface)
Allow jumbo frame to pass	Allow jumbo frame to pass through
PVID	Default VLAN ID
Mdi type	Cable type
Port link-type	Interface link type, which could be access, trunk, and hybrid.
Tagged   VLAN ID	VLANs whose packets are sent through the port with VLAN tag kept.
Untagged VLAN ID	VLANs whose packets are sent through the port with VLAN tag stripped off.
Last 300 seconds input:	Average input rate over the last 300 seconds, among which: l      packets/sec indicates the average input rate in terms of the average number of the packets received per second. l      bytes/sec indicates the average input rate in terms of the average number of bytes received per second. l      x% indicates the percentage of the average input rate to the total bandwidth, where - indicates that the rate is greater than the maximum value that can be displayed.
Last 300 seconds output	Average output rate over the last 300 seconds, among which: l      packets/sec indicates the average output rate in terms of the average number of the packets output per second. l      bytes/sec indicates the average output rate in terms of the average number of bytes output per second. l      x% indicates the percentage of the average output rate to the total bandwidth, where - indicates that the rate is greater than the maximum value that can be displayed.
Input (total): Input (normal): Input: Output (total): Output (normal): Output:	Error statistics on the interface inbound and outbound packets, underscore indicates that the corresponding entry is invalid.

 

# Display the information about Layer 2 Ethernet subinterface Ethernet 1/0.1.

<Sysname> system-view

[Sysname] interface ethernet 1/0.1

[Sysname-Ethernet1/0.1]

[Sysname-Ethernet1/0.1] display interface ethernet 1/0.1

 

ethernet 1/0.1 current state: DOWN

IP Sending Frames' Format: PKTFMT_ETHNT_2, Hardware Address: 000f-e245-7911

Description: ethernet 1/0.1 Interface

Broadcast MAX-ratio: 100%

PVID: 1

Port link-type: access

  Tagged   VLAN ID : none

  Untagged VLAN ID : 1

0 packets input, 0 bytes, 0 drops

0 packets output, 0 bytes, 0 drops  

Table 1-4 display interface command (in Layer 2 subinterface mode) output description

Field	Description
Ethernet1/0.1 current state	Current state of the Ethernet subinterface
IP Sending Frames' Format	Frame type of the Ethernet subinterface
Hardware Address	Interface hardware address
Broadcast MAX-ratio	Broadcast storm suppression ratio
PVID	Default VLAN ID
Port link-type	Interface link type
Tagged   VLAN ID	VLANs whose packets are sent through the port with VLAN tag kept.
Untagged VLAN ID	VLANs whose packets are sent through the port with the VLAN tag stripped off.
0 packets input, 0 bytes, 0 drops	Statistics on the packets received
0 packets output, 0 bytes, 0 drops	Statistics on the packets sent

 

duplex

Syntax

duplex { auto | full | half }

undo duplex

View

Ethernet interface view

Default Level

2: System level

Parameters

auto: Indicates that the interface is in auto-negotiation state.

full: Indicates that the interface is in full-duplex state.

half: Indicates that the interface is in half-duplex state. Combo ports operating as optical ports do not support this keyword.

Description

Use the duplex command to configure the duplex mode for an Ethernet interface.

Use the undo duplex command to restore the duplex mode for an Ethernet interface to the default.

By default, the duplex mode for an Ethernet interface is auto.

Related commands: speed.

Examples

# Configure the interface GigabitEthernet 1/0 to work in full-duplex mode.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] duplex full

flag sdh

Syntax

flag { j0 | j1 } sdh value

undo flag { j0 | j1 } sdh

View

Ten-GigabitEthernet interface view

Default Level

2: System level

Parameters

j0: Sets the regenerator section trace byte.

j1: Sets the path trace byte.

value: Value of J0/J1 bytes, a string of 1 to 15 characters.

Description

Use the flag sdh command to set a value for the overhead bytes J0/J1 in Synchronous Digital Hierarchy (SDH) frames when the 10GE interface works in WAN mode.

Use the undo flag command to restore the default value of J0/J1 bytes.

By default, the value of all J0/J1 bytes is all 0s.

Related commands: port-mode.

 

 

Examples

# Set J0 bytes in SDH frames to Sysname.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/1

[Sysname-Ten-GigabitEthernet1/1] port-mode wan

[Sysname-Ten-GigabitEthernet1/1] flag j0 sdh Sysname

flow-control

Syntax

flow-control

undo flow-control

View

Ethernet interface view

Default Level

2: System level

Parameters

None

Description

Use the flow-control command to enable flow control on an Ethernet interface.

Use the undo flow-control command to disable flow control on an Ethernet interface.

By default, flow control on an Ethernet interface is disabled.

 

 

Examples

# Enable flow control on interface GigabitEthernet 1/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] flow-control

interface

Syntax

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

View

System view

Default Level

2: System level

Parameters

interface-type { interface-number | interface-number.subnumber }: Interface type and interface number. As for the interface-number.subnumber argument, interface-number is an interface number; subnumber is the number of a subinterface created under the interface. The subnumber argument ranges from 1 to 4094.

Description

Use the interface command to enter interface/subinterface view. With the interface-number.subnumber argument specified, if the subinterface identified by the argument does not exist, this command creates the subinterface first.

Examples

# Enter GigabitEthernet 2/0 interface view (assuming that the interface is a Layer 3 Ethernet interface).

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0

[Sysname-GigabitEthernet2/0]

# Create Ethernet subinterface GigabitEthernet 2/0.1 and enter GigabitEthernet 2/0.1 subinterface view (assuming that Ethernet 2/0 is an Layer 3 Ethernet interface and the subinterface does not exist).

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0.1

[Sysname-GigabitEthernet2/0.1]

loopback

Syntax

loopback { external | internal }

undo loopback

View

Ethernet interface view

Default Level

2: System level

Parameters

external: Enables external loopback testing on an Ethernet interface.

internal: Enables internal loopback testing on an Ethernet interface.

Description

Use the loopback command to enable Ethernet interface loopback testing.

Use the undo loopback command to disable Ethernet interface loopback testing.

By default, Ethernet interface loopback testing is disabled.

 

 

Examples

# Enable loopback testing on GigabitEthernet 1/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] loopback internal

port-mode

Syntax

port-mode { lan | wan }

undo port-mode

View

Ten-GigabitEthernet interface view

Default Level

2: System level

Parameters

lan: Specifies the LAN mode.

wan: Specifies the WAN mode.

Description

Use the port-mode command to configure a 10GE interface to work in LAN or WAN mode.

Use the undo port-mode command to restore the default.

By default, a 10GE interface operates in LAN mode.

Examples

Configure the 10GE 1/1 to operate in the WAN mode.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/1

[Sysname-Ten-GigabitEthernet1/1] port-mode wan

reset counters interface

Syntax

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

View

User view

Default Level

2: System level

Parameters

interface-type: Interface type.

interface-number: Interface number.

interface-number.subnumber: Subinterface number, where interface-number is an interface number; subnumber is the number of a subinterface created under the interface. The value of subnumber ranges from 1 to 4094.

Description

Use the reset counters interface command to clear the statistics of an interface/subinterface.

Before sampling network traffic within a specific period of time on an interface, you need to clear the existing statistics.

l          If neither interface type nor interface number is specified, this command clears the statistics of all the interfaces.

l          If only the interface type is specified, this command clears the statistics of the interfaces that are of the interface type specified.

l          If both the interface type and interface/subinterface number are specified, this command clears the statistics of the specified interface/subinterface.

Examples

# Clear the statistics of GigabitEthernet 1/0.

<Sysname> reset counters interface gigabitethernet 1/0

# Clear the statistics of subinterface Ethernet 1/0.1.

<Sysname> reset counters interface gigabitethernet 1/0.1

shutdown

Syntax

shutdown

undo shutdown

View

Ethernet interface view, Ethernet subinterface view

Default Level

2: System level

Parameters

None

Description

Use the shutdown command to shut down an Ethernet interface/subinterface.

Use the undo shutdown command to bring up an Ethernet interface/subinterface.

By default, an Ethernet interface/subinterface is in the up state.

In certain circumstances, modification to the interface parameters does not immediately take effect, and therefore, you need to shut down the relative interface to make the modification work.

Examples

# Shut down interface GigabitEthernet 1/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] shutdown

# Shut down subinterface GigabitEthernet1/0.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0.1

[Sysname-GigabitEthernet1/0.1] shutdown

# Bring up interface GigabitEthernet 1/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] undo shutdown

speed

Syntax

speed { 10 | 100 | 1000 | auto }

undo speed

View

Ethernet interface view

Default Level

2: System level

Parameters

10: Specifies the interface rate as 10 Mbps. Combo ports operating as electrical ports do not support configuring this keyword.

100: Specifies the interface rate as 100 Mbps. Combo ports operating as electrical ports do not support configuring this keyword.

1000: Specifies the interface rate as 1,000 Mbps.

auto: Specifies to determine the interface rate through auto-negotiation.

Description

Use the speed command to configure Ethernet interface data rate.

Use the undo speed command to restore Ethernet interface data rate.

By default, Ethernet interface data rate is automatically negotiated between peer Ethernet interfaces.

Related commands: duplex.

Examples

# Configure the interface rate as 100 Mbps for interface GigabitEthernet 1/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0

[Sysname-GigabitEthernet1/0] speed 100

Layer 3 Ethernet Interface/Subinterface Configuration Commands

mtu

Syntax

mtu size

undo mtu

View

Layer 3 Ethernet interface view, Layer 3 Ethernet subinterface view

Default Level

2: System level

Parameters

size: Maximum Transmission Unit (MTU) in bytes, in the range 46 to 1580. The system default is 1500.

Description

Use the mtu command to set the MTU of an Ethernet interface/subinterface.

Use the undo mtu command to restore the default.

The default MRU of an Ethernet interface/subinterface is 1500 bytes.

 

 

Examples

# Set the MTU to 1430 bytes for GigabitEthernet 2/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0

[Sysname-GigabitEthernet2/0] mtu 1430

# Set the MTU to 1400 bytes for subinterface GigabitEthernet 2/0.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0.1

[Sysname-GigabitEthernet2/0.1] mtu 1400

sub-interface rate-statistic

Syntax

sub-interface rate-statistic

undo sub-interface rate-statistic

View

Layer 3 Ethernet interface view

Default Level

2: System level

Parameters

None

Description

Use the sub-interface rate-statistic command to enable the collecting of rate statistics of the subinterfaces on an Ethernet interface.

Use the undo sub-interface rate-statistic command to restore the default.

By default, the collecting of rate statistics of the subinterfaces on an Ethernet interface is disabled.

 

 

Examples

# Enable the collecting of rate statistics of the subinterfaces on GigabitEthernet 2/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0

[Sysname-GigabitEthernet2/0] sub-interface rate-statistic

Warning: This configuration may make a negative effect on the performance. Are you sure to continue? [Y/N]: Y

[Sysname-GigabitEthernet2/0]

timer hold

Syntax

timer hold seconds

undo timer hold

View

Layer 3 Ethernet interface view

Default Level

2: System level

Parameters

seconds: Time interval in seconds for link suppression, in the range of 0 to 32767. A value 0 indicates that the link test is disabled.

Description

Use the timer hold command to set the link-layer-state change suppression time for a Layer 3 Ethernet interface.

Use the undo timer hold command to restore the default.

By default, the link-layer-state change suppression time of a Layer 3 Ethernet interface is 10 seconds. The link-layer-state change suppression time settings of both sides of a connection need to be the same. A value of 0 disables link-layer-state change suppression.

 

 

Examples

# Set the link state change suppression time to 20 seconds for interface GigabitEthernet 2/0.

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0

[Sysname-GigabitEthernet2/0] timer hold 20

VE Interface Configuration Commands

display interface virtual-ethernet

Syntax

display interface virtual-ethernet [ interface-number ]

View

Any view

Default Level

1: Monitor level

Parameters

interface-number: Virtual Ethernet (VE) interface number, which can be the number of any existing Layer 3 VE interface.

Description

Use the display interface virtual-ethernet command to view information about a VE interface. If you do not provide the interface-number argument, this command displays information about all existing VE interfaces.

Related commands: interface virtual-ethernet.

Examples

# Display information about interface Virtual-Ethernet 2.

<Sysname> display interface virtual-ethernet 2

Virtual-Ethernet2 current state: DOWN

Line protocol current state: DOWN

Description: Virtual-Ethernet2 Interface

The Maximum Transmit Unit is 1500

Internet protocol processing : disabled

IP Packet Frame Type: PKTFMT_ETHNT_2,  Hardware Address: 00e0-fc98-7654

IPv6 Packet Frame Type: PKTFMT_ETHNT_2,  Hardware Address: 00e0-fc98-7654

Table 1-5 display interface virtual-ethernet command output description

Field	Description
current state	Physical state of the interface (up or down)
Line protocol current state	State of the data link layer protocol (up or down)
Description	Description of the interface
The Maximum Transmit Unit	MTU of the interface
Internet protocol processing	State of the network layer protocol (enabled or disabled)
IP Packet Frame Type	Encapsulation format for IPv4 packets
IPv6 Packet Frame Type	Encapsulation format for IPv6 packets

 

interface virtual-ethernet

Syntax

interface virtual-ethernet interface-number

undo interface virtual-ethernet interface-number

View

System view

Default Level

2: System level

Parameters

interface-number: VE interface number, ranging from 0 to 1023.

Description

Use the interface virtual-ethernet command to create a VE interface or enter VE interface view.

Use the undo interface virtual-ethernet command to remove a VE interface.

You cannot remove a VE interface that has been associated with a PVC.

Examples

# Create interface Virtual-Ethernet 2.

<Sysname> system-view

[Sysname] interface virtual-ethernet 2

[Sysname-Virtual-Ethernet2]

mac-address

Syntax

mac-address mac-address

undo mac-address

View

VE interface view

Default Level

2: System level

Parameters

mac-address: MAC address, in the form of H-H-H.

Description

Use the mac-address command to assign a MAC address to a VE interface.

Use the undo mac-address command to restore the default.

The default MAC address for a VE interface depends on your device model.

VE interfaces are logical interfaces, which can only be created or removed manually. Normally, when a VE interface is created, it borrows the MAC address of a certain physical port. As this physical port is fixed for all VE interfaces on your device, the VE interfaces share the same MAC address. When multiple VE interfaces are connected through different PVCs to a DHCP server that assigns IP addresses to the interfaces through static address binding, you must configure different MAC addresses for the interfaces with the mac-address command. For more information about static address binding of DHCP, refer to DHCP Configuration in the IP Services Volume.

Examples

# Assign MAC address 0001-0001-0001 to interface Virtual-Ethernet 1.

<Sysname> system-view

[Sysname] interface virtual-ethernet 1

[Sysname-Virtual-Ethernet1] mac-address 1-1-1