Table of Contents

1 ATM Interface Configuration Commands· 1-1

ATM Interface Commands· 1-1

display interface atm·· 1-1

interface atm·· 1-2

reset atm interface· 1-2

reset counters interface· 1-3

sub-interface rate-statistic· 1-3

ATM OC-3c/STM-1 Interface Configuration Commands· 1-4

clock· 1-4

frame-format 1-4

loopback· 1-5

scramble· 1-5

 

ATM Interface Commands

display interface atm

Syntax

display interface atm [ interface-number ]

View

Any view

Default Level

1: Monitor level

Parameters

interface-number: Interface number.

Description

Use the display interface atm command to display the configuration and status information about an ATM interface.

If no interface is specified, this command displays the configuration and status information about all ATM interfaces.

Examples

# Display the configuration and status information about interface ATM 3/0.

<Sysname> display interface atm 3/0

Atm3/0 current state :DOWN

Line protocol current state :DOWN

Description :  Atm3/0 Interface

The Maximum Transmit Unit is 1500

Internet protocol processing : disabled

AAL enabled: AAL5, Maximum VCs: 128

Current VCs: 0 (0 on main interface)

ATM over E1, Scramble enabled, frame-format crc4-adm

code hdb3, clock slave,Cable-length long, loopback not set

Cable type:  75 ohm non-balanced

Line Alarm: LOS LOF

Line Error: 0 FERR, 0 LCV, 0 CERR, 0 FEBE

 

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

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

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

         0 errors, 0 crcs, 0 lens, 0 giants,

         0 pads, 0 aborts, 0 timeouts

         0 overflows, 0 overruns

 Output: 0 packets, 0 bytes, 0 buffers

         0 errors, 0 overflows, 0 underruns

interface atm

Syntax

interface atm interface-number

View

System view

Default Level

2: System level

Parameters

interface-number: ATM interface number.

Description

Use the interface atm command to enter ATM interface view.

Examples

# Enter ATM 1/0 interface view.

<Sysname> system-view

[Sysname] interface atm 1/0

[Sysname-Atm1/0]

reset atm interface

Syntax

reset atm interface [ atm interface-number ]

View

User view

Default Level

2: System level

Parameters

atm interface-number: Specifies an ATM interface.

Description

Use the reset atm interface command to clear the statistics on the PVCs created on an ATM interface or all the ATM interfaces.

Note that:

l          If you execute this command with an ATM interface specified, this command displays the statistics on the PVCs created on the ATM interface.

l          If you execute this command with no ATM interface specified, the statistics on the PVCs created on all the ATM interfaces are cleared.

To clear statistics about ATM interfaces, use the reset counters interface command, which is described in Ethernet Interface Commands in the Access Volume.

Examples

# Clear the statistics on all the PVCs created on ATM 1/0 interface.

<Sysname> reset atm interface atm 1/0

reset counters interface

Syntax

reset counters interface [ atm [ interface-number ] ]

View

User view

Default Level

2: System level

Parameters

interface-number: Interface number.

Description

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

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

Examples

# Clear the statistics of ATM interface ATM 1/0.

<Sysname> reset counters interface atm 1/0

sub-interface rate-statistic

Syntax

sub-interface rate-statistic

undo sub-interface rate-statistic

View

ATM interface view

Default Level

2: System level

Parameters

None

Description

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

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

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

 

 

Examples

# Enable the collecting of rate statistics on the subinterfaces of ATM 1/0.

<Sysname> system-view

[Sysname] interface pos 1/0

[Sysname-Pos1/0] sub-interface rate-statistic

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

[Sysname-ATM1/0]

ATM OC-3c/STM-1 Interface Configuration Commands

clock

Syntax

clock { master | slave }

undo clock

View

ATM OC-3c interface view, STM-1 interface view

Default Level

2: System level

Parameters

master: Sets the clock mode as master.

slave: Sets the clock mode as slave.

Description

Use the clock command to set the clock mode for an ATM OC-3c/STM-1 interface.

Use the undo clock command to restore the default, that is, the slave clock mode.

When the ATM interface is operating as DCE, set its clock mode to master. When the interface is operating as DTE, set its clock mode to slave.

When the ATM interfaces on two routers are connected directly through a fiber-optic cable, set the clock mode to master at one end and to slave at the other end.

Examples

# Set the clock mode of ATM interface 4/0 to master.

<Sysname> system-view

[Sysname] interface atm 4/0

[Sysname-Atm4/0] clock master

frame-format

Syntax

frame-format { sdh | sonet }

undo frame-format

View

ATM OC-3c interface view, STM-1 interface view

Default Level

2: System level

Parameters

sdh: Sets the framing format to SDH STM-1, the synchronous transport module-level 1 (STM-1) of synchronous digital hierarchy (SDH).

sonet: Sets the framing format to SONET OC-3, the optical carrier level three (OC-3) of synchronous optical network (SONET).

Description

Use the frame-format command to set the framing format for an ATM OC-3c/STM-1 interface.

Use the undo frame-format command to restore the default, that is, SDH STM-1.

Examples

# Set the framing format to SDH STM-1 on an ATM OC-3c/STM-1 interface.

<Sysname> system-view

[Sysname] interface atm 4/0

[Sysname-Atm4/0] frame-format sdh

loopback

Syntax

loopback { local | remote }

undo loopback

View

ATM OC-3c interface view, STM-1 interface view

Default Level

2: System level

Parameters

local: Enables internal loopback.

remote: Enables external loopback.

Description

Use the loopback command to configure the loopback mode on the ATM OC-3c/STM-1 interface.

Use the undo loopback command to disable loopback.

By default, loopback is disabled.

Loopback is intended for test use. Disable it otherwise.

Examples

# Enable internal loopback on ATM 4/0.

<Sysname> system-view

[Sysname] interface atm 4/0

[Sysname-Atm4/0] loopback local

scramble

Syntax

scramble

undo scramble

View

ATM OC-3c interface view, STM-1 interface view

Default Level

2: System level

Parameters

None

Description

Use the scramble command to enable payload scrambling on the ATM OC-3c/STM-1 interface. This, however, does not affect cell headers.

Use the undo scramble command to disable payload scrambling.

By default, payload scrambling is enabled on the ATM OC-3c/STM-1 interface.

Enabling scrambling prevents successive 0s/1s in the payload.

Examples

# Enable payload scrambling on ATM 4/0.

<Sysname> system-view

[Sysname] interface atm 4/0

[Sysname-Atm4/0] scramble