Configuring WAN interfaces

1.     Enter system view.

system-view

N/A

2.     Enter CE1 interface view.

controller e1 number

N/A

3.     Set the interface to operate in E1 mode.

using e1

The default operating mode is CE1 mode.

4.     Set other interface parameters.

See “Configuring other CE1 interface parameters.”

Optional.

1.     Enter system view.

system-view

N/A

2.     Enter CE1 interface view.

controller e1 number

N/A

3.     Set the interface to operate in CE1 mode.

using ce1

Optional.

The default operating mode is CE1 mode.

4.     Bundle timeslots on the interface into a channel set.

channel-set set-number timeslot-list list

N/A

5.     Set other interface parameters.

See “Configuring other CE1 interface parameters.”

Optional.

1.     Enter system view.

system-view

N/A

2.     Enter CE1 interface view.

controller e1 number

N/A

3.     Configure the interface description.

description text

Optional.

The default description is Interface name Interface.

4.     Set the line code format.

code { ami | hdb3 }

Optional.

The default is high density bipolar 3 (HDB3).

5.     Set the cable type.

cable { long | short }

Optional.

The default cable type is long.

6.     Set the clock mode.

clock { master | slave }

Optional.

The default is slave, that is, line clock.

7.     Enable automatic clock mode change.

clock-change auto

Optional.

Disabled by default.

8.     Set the framing format.

frame-format { crc4 | no-crc4 }

Optional.

The default is no-CRC4.

9.     Enable loopback and set the loopback mode.

loopback { local | payload | remote }

Optional.

Loopback is disabled by default.

10.   Restore the default settings.

default

Optional.

11.   Disable the CE1 interface.

shutdown

Optional.

A CE1 interface is enabled by default.

12.   Return to system view.

quit

N/A

13.   Enter the view of the synchronous serial interface created on the CE1 interface.

·       interface serial interface-number:set-number

·       interface serial interface-number:0

Use either command.

14.   Set the CRC mode.

crc { 16 | 32 | none }

Optional.

By default, 16-bit CRC is adopted.

15.   Set the MTU.

mtu mtu

Optional.

1500 by default.

16.   Set the keepalive transmission interval.

timer hold seconds

Optional.

10 seconds by default.

17.   Specify the link layer protocol.

link-protocol { fr | hdlc | ppp }

Optional.

PPP by default.

Support for Frame Relay depends on the daughter cards.

Display the operating state of a CE1 interface.

display controller e1 [ interface-number ] [ | { begin | exclude | include } regular-expression ]

Available in any view

Display the operating state of a serial interface.

display interface serial [ interface-number:set-number ] [ | { begin | exclude | include } regular-expression ]

Available in any view

Clear the controller counter of a CE1 interface.

reset counters controller e1 interface-number

Available in user view

1.     Enter system view.

system-view

N/A

2.     Enter CT1 interface view.

controller t1 number

N/A

3.     Bundle timeslots on the interface into a channel set.

channel-set set-number timeslot-list list [ speed { 56k | 64k } ]

Up to 24 channel sets can be bundled.

The default timeslot speed is 64 kbps.

4.     Set other interface parameters.

See “Configuring other CT1 interface parameters.”

Optional.

1.     Enter system view.

system-view

N/A

2.     Enter CT1 interface view.

controller t1 number

N/A

3.     Configure the interface description.

description text

Optional.

The default description is Interface name Interface.

4.     Set the cable length and cable attenuation.

·       cable long { 0db | -7.5db | -15db | -22.5db }

·       cable short { 133ft | 266ft | 399ft | 533ft | 655ft }

Optional.

The long 0db keywords apply by default.

5.     Set the line code format.

code { ami | b8zs }

Optional.

The default is B8ZS¹.

6.     Set the clock mode.

clock { master | slave }

Optional.

The default is slave, that is, line clock.

7.     Set the framing format.

frame-format { esf | sf }

Optional.

The default is ESF.

8.     Set the behavior of the interface on the FDL in ESF framing.

fdl { ansi | att | both | none }

Optional.

The default is none, meaning that FDL is forbidden.

9.     Enable loopback.

loopback { local | remote | payload }

Optional.

Disabled by default.

10.   Send remote loopback control code.

sendloopcode { fdl-ansi-llb-down | fdl-ansi-llb-up | fdl-ansi-plb-down | fdl-ansi-plb-up | fdl-att-plb-down | fdl-att-plb-up | inband-llb-down | inband-llb-up }

Optional.

No remote loopback control code is sent by default.

11.   Restore the default settings.

default

Optional.

12.   Shut down the CT1 interface.

shutdown

Optional.

A CT1 interface is enabled by default.

13.   Return to system view.

quit

N/A

14.   Enter the view of the synchronous serial interface created on the CT1 interface.

interface serial interface-number:set-number

N/A

15.   Set the CRC mode.

crc { 16 | 32 | none }

Optional.

By default, 16-bit CRC is adopted.

16.   Set the MTU of the serial interface.

mtu mtu

Optional.

1500 bytes by default

17.   Set the keepalive transmission interval.

timer hold seconds

Optional.

10 seconds by default

18.   Configure the link layer protocol of the serial interface.

link-protocol { fr | hdlc | ppp }

Optional.

PPP by default.

Support for Frame Relay depends on the daughter cards.

 IMPORTANT:

1. B8ZS = Bipolar 8 zeros substitution; 2. ESF = Extended super frame; 3. LOS = Loss of signal; 4. AIS = Alarm indication signal; 5. LFA = Loss of frame align

Display the operating state of CT1 interfaces.

display controller t1 [ interface-number ] [ | { begin | exclude | include } regular-expression ]

Available in any view

Display the operating state of a serial interface.

display interface serial interface-number:set-number [ | { begin | exclude | include } regular-expression ]

Available in any view

Clear the controller counter of a CT1 interface.

reset counters controller t1 interface-number

Available in user view