Contents

Reth interface commands· 1

bandwidth· 1

default 1

description· 2

display interface reth· 2

display reth interface· 6

interface reth· 7

member interface· 8

mtu· 8

reset counters interface reth· 9

shutdown· 10

 

Reth interface commands

bandwidth

Use bandwidth to set the expected bandwidth for a Reth interface.

Use undo bandwidth to restore the default.

Syntax

bandwidth bandwidth-value

undo bandwidth

Default

The expected bandwidth is 10000 kbps for a Reth interface.

Views

Reth interface view

Predefined user roles

network-admin

mdc-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 to 50 kbps for Reth 1.

<Sysname> system-view

[Sysname] interface reth 1

[Sysname-Reth1] bandwidth 50

default

Use default to restore the default settings for a Reth interface.

Syntax

default

Views

Reth interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

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

 

This command might fail to restore the default settings for some commands for reasons such as command dependencies and system restrictions.

To resolve this problem:

1.     Use the display this command in interface view to identify these commands.

2.     Use their undo forms or follow the command reference to restore their default settings.

3.     If the restoration attempt still fails, follow the error message instructions to resolve the problem.

Examples

# Restore the default settings for Reth 1.

<Sysname> system-view

[Sysname] interface reth 1

[Sysname-Reth1] default

description

Use description to configure the description of an interface.

Use undo description to restore the default.

Syntax

description text

undo description

Default

The description of a Reth interface is interface-name plus Interface (for example, Reth1 Interface).

Views

Reth interface view

Predefined user roles

network-admin

mdc-admin

Parameters

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

Examples

# Configure the description of Reth 1 as master-interface.

<Sysname> system-view

[Sysname] interface reth 1

[Sysname-Reth1] description master-interface

display interface reth

Use display interface reth to display Reth interface information.

Syntax

display interface [ reth [ interface-number ] ] [ brief [ description | down ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

reth [ interface-number ]: Specifies Reth interfaces. The interface-number argument specifies an existing Reth interface by its number. If you do not specify the reth keyword, the command displays information about all interfaces. If you specify the reth keyword without the interface-number argument, the command displays information about all Reth interfaces.

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

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

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

Examples

# Display detailed information about Reth 1.

<Sysname> display interface reth 1

Reth1

Current state: UP

Line protocol state: UP

Description: Reth1 Interface

Bandwidth: 10000kbps

Maximum transmission unit: 1500

Internet protocol processing: Disabled

IP packet frame type: Ethernet II, hardware address: 0cda-41b5-cf30

IPv6 packet frame type: Ethernet II, hardware address: 0cda-41b5-cf30

Physical: Reth, baudrate: 10000000 bps

Last clearing of counters: Never

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

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

Input: 0 packets, 0 bytes, 0 drops

Output: 0 packets, 0 bytes, 0 drops

Table 1 Command output

Field	Description
Current state	Physical link state of the interface: ·     Administratively DOWN—The interface has been shut down by using the shutdown command. ·     DOWN—The interface is administratively up, but its physical state is down (possibly because no physical link exists or the link has failed). ·     UP—The interface is both administratively and physically up. A Reth interface is both administratively and physically up when a minimum of one member interface is administratively and physically up.
Line protocol state	Data link layer state of the interface. The state is determined through automatic parameter negotiation at the data link layer. ·     UP—The data link layer protocol is up. ·     DOWN—The data link layer protocol is down.
Description	Description of the interface.
Bandwidth	Expected bandwidth of the interface.
Maximum transmission unit	MTU of the interface.
Internet protocol processing: Disabled	The interface is not assigned an IP address and cannot process IP packets.
Internet Address	IP address of the interface. The primary attribute indicates that the address is the primary IP address.
IP packet frame type	IPv4 packet framing format.
hardware address	MAC address of the interface.
IPv6 packet frame type	IPv6 packet framing format.
Physical	Interface type.
Last clearing of counters	Last time when the reset counters interface command was used to clear the interface statistics. If the reset counters interface command has never been used on the interface since the device startup, this field displays Never.
Last 300 second input:  0 bytes/sec, 0 bits/sec, 0 packets/sec Last 300 second output:  0 bytes/sec, 0 bits/sec, 0 packets/sec	Average incoming and outgoing traffic rate for the last 300 seconds.
Input: 0 packets, 0 bytes, 0 drops	Incoming traffic statistics on the interface: ·     Number of packets. ·     Number of bytes. ·     Number of dropped packets due to insufficient receive buffer.
Output: 0 packets, 0 bytes, 0 drops	Outgoing traffic statistics on the interface: ·     Number of packets. ·     Number of bytes. ·     Number of dropped packets due to insufficient send buffer.
Brief information on interfaces in route mode	Brief information about Layer 3 interfaces.
Interface	Abbreviated 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 shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command. ·     Stby—The interface is a backup interface in standby state. To see the primary interface, use the display interface-backup state command.
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, but the link is an on-demand link or does not exist. The (s) attribute represents the spoofing flag.
Primary IP	Primary IP address of the interface. This field displays two hyphens (--) if the interface does not have an IP address.
Description	Description of the interface.

 

# Display brief information about Reth 1.

<Sysname> display interface reth 1 brief

Brief information on interfaces in route mode:

Link: ADM - administratively down; Stby - standby

Protocol: (s) - spoofing

Interface            Link Protocol Primary IP         Description

Reth1                DOWN DOWN     --

# Display the causes for the down state of Reth 1.

<Sysname> display interface reth 1 brief down

Brief information on interfaces in route mode:

Link: ADM - administratively down; Stby - standby

Interface            Link Cause

Reth1                DOWN Not connected

Table 2 Command output

Field	Description
Brief information on interfaces in route mode:	Brief information about Layer 3 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 shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command. ·     Stby—The interface is a backup interface in standby state. To see the primary interface, use the display interface-backup state command.
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, but the link is an on-demand link or does not exist. The (s) attribute represents the spoofing flag. This value is typical of null interfaces and loopback interfaces.
Primary IP	Primary IP address of the interface. This field displays two hyphens (--) if the interface does not have an IP address.
Description	Description of the interface.
Cause	Cause for the physical link state of an interface to be DOWN: ·     Administratively—The interface has been manually shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command. ·     Not connected—No physical connection exists (possibly because the network cable is disconnected or faulty).

 

display reth interface

Use display reth interface to display information about the member interfaces of a Reth interface.

Syntax

display reth interface reth interface-number

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

reth interface-number: Specifies a Reth interface by its number. The value for the interface-number argument is 1 or 2.

Examples

# Display information about the member interfaces of Reth 1.

<Sysname> display reth interface reth 1

Reth1 :

  Redundancy group  : aaa

  Member         Physical status       Forwarding status      Presence status

  MGE1/0/0/0     UP                    Active                 Normal

  MGE1/0/0/1     UP                    Inactive               Normal

Table 3 Command output

Field	Description
Redundancy group	The redundancy group to which the Reth interface belongs. If the Reth interface is not in any redundancy group, this field displays N/A.
Member	Name of the member interface.
Physical status	Physical status of the member interface: ·     Down (redundancy down)—The interface has been shut down by the Reth module. ·     Down—The interface is administratively up but physically down possibly because no physical link is present or the link has failed. ·     UP—The interface is both administratively and physically up.
Forwarding status	Forwarding status of the member interface: ·     Active—The member interface can forward packets. ·     Inactive—The member interface cannot forward packets.
Presence status	Status of the member interface: ·     Normal—The member interface exists. ·     Absent—The member interface does not exist.

 

interface reth

Use interface reth to create a Reth interface and enter its view, or enter the view of an existing Reth interface.

Use undo interface reth to delete a Reth interface.

Syntax

interface reth interface-number

undo interface reth interface-number

Default

No Reth interfaces exist.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

interface-number: Specifies a Reth interface by its number. The value for this argument is 1 or 2.

Usage guidelines

An MPU must have a minimum of two management Ethernet ports.

After a management Ethernet port is assigned to a Reth interface, you cannot log in to the device through the management Ethernet port.

You cannot delete a Reth interface if it has member interfaces.

Examples

# Create Reth 1 and enter its view.

<Sysname> system-view

[Sysname] interface reth 1

[Sysname-Reth1]

member interface

Use member interface to assign a member interface to a Reth interface.

Use undo member interface to remove a member interface from a Reth interface.

Syntax

member interface interface-type interface-number priority priority

undo member interface interface-type interface-number

Default

A Reth interface does not have member interfaces.

Views

Reth interface view

Predefined user roles

network-admin

mdc-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

The interface must be a management Ethernet port.

priority: Specifies an interface priority in the range of 1 to 255. The higher the value, the higher the interface priority.

Usage guidelines

You can assign a maximum of two member interfaces to a Reth interface. An interface can belong to only one Reth interface.

As a best practice, assign interfaces of the same type and same speed to a Reth interface.

When the two member interfaces of a Reth interface are up, the system chooses the interface with the higher priority as the active interface to forward packet. The interface with the lower priority is inactive and cannot forward packets.

Examples

# Assign M-GigabitEthernet 1/0/0/0 and M-GigabitEthernet 1/0/0/1 to Reth 1, and set their priority to 100 and 50, respectively.

<Sysname> system-view

[Sysname] interface reth 1

[Sysname-Reth1] member interface M-GigabitEthernet 1/0/0/0 priority 100

[Sysname-Reth1] member interface M-GigabitEthernet 1/0/0/1 priority 50

mtu

Use mtu to set the MTU of a Reth interface.

Use undo mtu to restore the default.

Syntax

mtu size

undo mtu

Default

The MTU is 1500 bytes for a Reth interface.

Views

Reth interface view

Predefined user roles

network-admin

mdc-admin

Parameters

size: Specifies the MTU in bytes. The value range for this argument is 46 to 1500.

Usage guidelines

The MTU size of a Reth interface affects the fragmentation and reassembly of IP packets on the interface.

For the configured MTU size to take effect, execute the shutdown command, and then the undo shutdown command on the interface.

Examples

# Set the MTU to 200 bytes for Reth 1.

<Sysname> system-view

[Sysname] interface reth 1

[Sysname-Reth1] mtu 200

reset counters interface reth

Use reset counters interface reth to clear statistics for Reth interfaces.

Syntax

reset counters interface [ reth [ interface-number ] ]

Views

User view

Predefined user roles

network-admin

mdc-admin

Parameters

reth [ interface-number ]: Specifies Reth interfaces. The interface-number argument specifies an existing Reth interface by its number. If you do not specify the reth keyword, the command clears statistics for all interfaces. If you specify the reth keyword without the interface-number argument, the command clears statistics for all Reth interfaces.

Usage guidelines

Use this command to clear history statistics before you collect traffic statistics for a time period.

Examples

# Clear statistics for Reth 1.

<Sysname> reset counters interface reth 1

shutdown

Use shutdown to shut down a Reth interface.

Use undo shutdown to bring up a Reth interface.

Syntax

shutdown

undo shutdown

Default

A Reth interface is up.

Views

Reth interface view

Predefined user roles

network-admin

mdc-admin

Examples

# Shut down Reth 1.

<Sysname> system-view

[Sysname] interface reth 1

[Sysname-Reth1] shutdown