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| Title | Size | Download |
|---|---|---|
| 03-WAN interface configuration | 89.31 KB |
Contents
Configuring common WAN interface settings
Configuring unchannelized mode for a CE1 interface
Configuring channelized mode for a CE1 interface
Enabling local loopback on a CE1 interface
Display and maintenance commands for CE1 interfaces
Restoring the default settings for an interface
Configuring WAN interfaces
About WAN interfaces
This chapter describes how to configure the CE1 interfaces.
Only the HRIC-ET16-G interface module supports this feature. For more information about the interfaces provided by the device, see the installation guide and interface module manual of the device.
Configuring common WAN interface settings
About this task
This section only describes the common properties configuration for WAN interfaces.
Procedure
1. Enter system view.
system-view
2. Enter CE1 interface view.
controller e1 interface-number
3. Configure the interface description.
description text
By default, the description of an asynchronous serial interface is interface name Interface, for example, E1 2/0/1 Interface.
4. Bring up the interface.
undo shutdown
By default, an interface is up.
Configuring a CE1 interface
About CE1 interfaces
A CE1 interface can operate in channelized or unchannelized mode:
· Unchannelized mode is also called CEM mode.
· Channelized mode is also called CE1 mode.
CEM mode
For a CE1 interface in CEM mode, the system automatically creates a 2.048 Mbps CEM interface. For more information about CEM interfaces, see MPLS Configuration Guide.
CE1 mode
In CE1 mode, you can bundle all timeslots except timeslot 0 into a maximum of 31 CEM sets. For each CEM set, the system automatically creates a CEM interface named circuit-emulation interface-number:set-number.
Configuring unchannelized mode for a CE1 interface
Configuring a CE1 interface in CEM mode
1. Enter system view.
system-view
2. Enter CE1 interface view.
controller e1 interface-number
3. Configure the interface to operate in CEM mode.
using cem
By default, a CE1 interface operates in CE1 mode.
When a CE1 interface operates in CEM mode, the system automatically creates a CEM interface. The CEM interface name uses the circuit-emulation interface-number:0 format.
4. Set other interface parameters.
See "Configuring other CE1 interface parameters."
Configuring channelized mode for a CE1 interface
Configuring a CE1 interface in CE1 mode
1. Enter system view.
system-view
2. Enter CE1 interface view.
controller e1 interface-number
3. Configure the interface to operate in CE1 mode.
using ce1
By default, a CE1 interface operates in CE1 mode.
4. Bundle timeslots on the interface into a CEM set.
cem-set set-number timeslot-list list
For each CEM set, the system automatically creates a CEM interface. The CEM interface name uses the circuit-emulation interface-number:set-number format.
5. Set the framing format.
frame-format { crc4 | no-crc4 }
The default is no-CRC4.
A CE1 interface in CE1 mode supports both CRC4 and no-CRC4 framing formats.
6. Set other interface parameters.
See "Configuring other CE1 interface parameters."
Configuring other CE1 interface parameters
1. Enter system view.
system-view
2. Enter CE1 interface view.
controller e1 interface-number
3. Set the line code format.
code { ami | hdb3 }
The default is high density bipolar 3 (HDB3).
4. Enable or disable user data inversion.
data-coding { inverted | normal }
By default, user data inversion is disabled.
5. Set the clock mode.
clock { master | slave }
The default clock mode is slave, which is line clock.
6. Enable automatic clock mode change.
clock-change auto
By default, automatic clock mode change is disabled.
When automatic clock mode switchover is enabled, the interface automatically switches to the master clock mode when both of the following conditions exist:
¡ The interface uses the slave clock mode.
¡ The interface receives an alarm indication signal (AIS), loss of signal (LOS), or loss of frame (LOF) alarm.
After the alarm is cleared, the interface automatically switches back to the slave clock mode.
7. Set the line idle code type.
idle-code { 7e | ff }
The default is 7e.
8. Display the operating status and information of the controller interface.
display this controller
Enabling local loopback on a CE1 interface
About this task
Loopback is intended for testing only. Disable loopback when the interface is operating correctly.
Restrictions and guidelines
After you enable this feature on a CE1 interface, the interface does not forward data traffic.
Procedure
1. Enter system view.
system-view
2. Enter CE1 interface view.
controller e1 interface-number
3. Enable local loopback.
loopback { local | payload | remote }
By default, local loopback is disabled.
Display and maintenance commands for CE1 interfaces
Execute display commands in any view and reset commands in user view.
|
Task |
Command |
|
Display information about CE1 interfaces. |
display controller [ e1 [ interface-number ] ] |
|
Clear statistics for CE1 interfaces. |
reset counters controller e1 [ interface-number ] |
Restoring the default settings for an interface
Restrictions and guidelines
This feature might interrupt ongoing network services. Make sure you are fully aware of the impact of this feature when you use it on a live network.
This feature 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 check for these commands and perform their undo forms or follow the command reference to restore their default settings. If your restoration attempt still fails, follow the error message to resolve the problem.
Procedure
1. Enter system view.
system-view
2. Enter CE1 interface view.
controller interface-type interface-number
3. Restore the default settings for the interface.
default
