Configuring Channels and Clear-Channel and Channelized Ports

Contents

1Overview
1.1Traffic Card Support for Channels
1.2Bandwidth Provided by Channelized Ports
1.3Terminology

2

Configuration and Operations Tasks
2.1Configuring Channelized OC-12 Ports
2.2Configuring DS-3 Channels or Ports
2.3Configuring DS-1 Channels
2.4Configuring Clear-Channel E3 Port
2.5Configuring Channelized STM-1 Ports
2.6Configuring E1 Channels or Ports
2.7Configuring a DS-0 Channel Group
2.8Port and Channel Operations

3

Configuration Examples
3.1Channelized OC-12 Port
3.2DS-3 Channel and Port
3.3DS-1 Channel
3.4Clear-Channel E3 Port
3.5Channelized STM-1 Port
3.6E1 Channel and Port
3.7DS-0 Channel Group
Copyright

© Ericsson AB 2009–2010. All rights reserved. No part of this document may be reproduced in any form without the written permission of the copyright owner.

Disclaimer

The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.

Trademark List
SmartEdge is a registered trademark of Telefonaktiebolaget LM Ericsson.
NetOp is a trademark of Telefonaktiebolaget LM Ericsson.

1   Overview

This document describe how to configure and administer the data channels supported by clear-channel and channelized ports. The following types of traffic cards support data channels: DS-3, E1, E3, OC-12, and STM-1.

The commands described in this document are common to the following port types, except where noted:

Restrictions:

1.1   Traffic Card Support for Channels

Table 1 lists the SmartEdge router traffic cards that support E1, E3, DS1, and DS3 ports.

Table 1    SmartEdge 400 and SmartEdge 800 Traffic Cards

Type of Traffic Card

Full Name of Card

CLI Name of Card

Channel Support and Framing

PDH (Plesiochronous Digital Hierarchy)

 

Channelized DS-3 (3-port card)

ch-ds3-3-port

framed channelized or framed clear-channel DS-3

 

Channelized DS-3 (12-port card)

ch-ds3-12-port

framed channelized or framed clear-channel DS-3

 

Clear-Channel DS-3 (12-port card)

ds3-12-port

framed clear-channel DS-3

 

Clear-Channel E3 (6-port card)

e3-6-port

framed clear-channel or unframed clear-channel E3

 

Channelized E1 (24-port card)

ch-e1ds0-24-port

framed channelized, framed clear-channel, or unframed clear-channel E1

1.2   Bandwidth Provided by Channelized Ports

The bandwidth provided by channelized ports and channels is as follows:

1.3   Terminology

2   Configuration and Operations Tasks

2.1   Configuring Channelized OC-12 Ports

Each channelized OC-12 port supports 12 STS-1s; you can create a DS-3 channel in each STS-1. Configuring a channelized OC-12 port is described in the following topics:

2.1.1   Configure Operational Features for a Channelized OC-12 Port

You configure operational features to support normal operations. To configure operational features for a channelized OC-12 port, perform the tasks described in Table 2.

Table 2    Configure Operational Features for a Channelized OC-12 Port

Step

Task

Root Command

Notes(1)

1.

Select (begin the configuration of) a channelized OC-12 port and access port configuration mode.

port channelized-oc12

Enter this command in global configuration mode.

2.

Specify general attributes for the port (all attributes are optional):

 

Associate a description with the port.

description (port, channel)

Enter this command in port configuration mode.

 

Apply an existing bulkstats schema profile to the port.

bulkstats schema

 

3.

Enable the port (begin operations on it).

shutdown (Channel)

Enter this command in port configuration mode. Use the no form to enable the port.

(1)  The XCRP4 Controller card does not support channelized OC-12c/STM-4c traffic cards.


You are now ready to configure the DS-3 channels on the port. Two types of DS-3 channels are supported: channelized, with up to 28 DS-1 channels, and clear-channel. To configure DS-3 channels, see the Configuring DS-3 Channels or Ports section.

2.1.2   Configure the Maintenance Feature for a Channelized OC-12 Port

You configure the maintenance feature only if a port is experiencing problems. To configure the maintenance feature for a channelized OC-12 port, perform the task described in Table 3.

Table 3    Configure the Maintenance Feature for a Channelized OC-12 Port

Task

Root Command

Notes

Change to a loopback state on the port to test port operation.

loopback (channels)

Enter this command in port configuration mode.

2.2   Configuring DS-3 Channels or Ports

Configuring a DS-3 channel or port is described in the following sections:

2.2.1   Configure Operational Features

You configure operational features to support normal operations. To configure a DS-3 channel or port for normal operations, perform the tasks described in one of the following sections:

2.2.1.1   Clear-Channel DS-3 Channel or Port

To configure operational features for a clear-channel DS-3 channel or port, perform the tasks described in Table 4. Enter all commands in DS-3 configuration mode unless otherwise noted.

Table 4    Configure Operational Features for a Clear-Channel DS-3 Channel or Port

Step

Task

Root Command

Notes

1.

Select (begin the configuration of) a clear-channel DS-3 channel or port and access DS-3 configuration mode.

port ds3

Enter this command in global configuration mode.

2.

Specify general attributes for the channel or port (all attributes are optional):

 

Associate a description with the channel or port.

description (port, channel)

You can also enter this command in port configuration.

 

Specify the framing.

framing (DS-1, DS-3, E1, E3)

 
 

Specify the MTU packet size without fragmentation.

mtu (channel)

 
 

Set the CRC length.

crc32

 
 

Specify the clock source.

clock-source (E/T-carrier)

 

3.

Specify the idle character.

idle-character

 

4.

Specify the cable length.

cablelength (DS-3)

This command does not apply to DS-3 channels on channelized OC-12 ports.

5.

Enable the channel or port to respond to or ignore remote loopback requests.

equipment-loopback (DS-1 and DS-3)

This command is only available in DS-1 or DS-3 configuration mode.

6.

Specify the DSU vendor.

dsu mode

 
 

Specify the DSU subrate bandwidth.

dsu bandwidth

.

 

Enable DS-3 payload scrambling.

dsu scramble

 
 

Specify the type of encapsulation.

encapsulation (channels)

 
 

Specify the parameters for the Cisco HDLC keepalive function.

keepalive (channel)

 
 

Apply an existing bulkstats schema profile to the channel or port.

bulkstats schema

 

7.

Bind the channel or port to an existing interface in an existing context.

bind interface

Use this command only if you do not intend to create Frame Relay PVCs on it.

8.

Enable the channel or port (begin operations on it).

shutdown (Channel)

Use the no form to enable the channel or port.

You are now ready to use the channel or port or configure Frame Relay PVCs on it. For more information about Frame Relay PVCs, see the Configuring Circuits document.

2.2.1.2   Channelized DS-3 Channel or Port

To configure operational features for a channelized DS-3 channel or port, perform the tasks described in Table 5. Unless otherwise noted, enter all commands in DS-3 configuration mode.

Table 5    Configure Operational Features for a Channelized DS-3 Channel or Port

Step

Task

Root Command

Notes

1.

Create or select (begin the configuration of) a channelized DS-3 channel or port and access DS-3 configuration mode.

port channelized-ds3

Enter this command in global configuration mode.

2.

Specify general attributes for the channel or port (all attributes are optional):

 

Associate a description with the channel or port.

description (port, channel)

You can also enter this command in port configuration mode.

 

Specify the framing.

framing (DS-1, DS-3, E1, E3)

 
 

Specify the clock source.

clock-source (E/T-carrier)

 
 

Specify the cable length.

cablelength (DS-3)

This command does not apply to DS-3 channels on channelized OC-12 ports.

 

Enable the channel or port to respond to or ignore remote loopback requests.

equipment-loopback (DS-1 and DS-3)

This command is only available in DS-1 or DS-3 configuration mode.

 

Apply an existing bulkstats schema profile to the channel or port.

bulkstats schema

 
 

Enable the channel or port (begin operations on it).

shutdown (Channel)

You can enter this command in port configuration as well. Use the no form to enable the channel or port.

You are now ready to configure the constituent DS-1 channels on the channelized DS-3 channel or port. For more information about DS-1 channels, see the Configuring DS-1 Channels section.

2.2.2   Configure the Maintenance Feature for a DS-3 Channel or Port

You configure the maintenance feature only if a channel or port is experiencing problems. To configure the maintenance feature for a clear-channel or channelized DS-3 channel or port, perform the task described in Table 6.

Table 6    Configure the Maintenance Feature for a DS-3 Channel or Port

Task

Root Command

Notes

Change to a loopback state on the channel or port to test channel or port operation.

loopback (channels)

Enter this command in DS-3 configuration mode.

2.3   Configuring DS-1 Channels

To configure a DS-1 channel, perform the tasks in the following sections:

2.3.1   Configure Operational Features for a DS-1 Channel

You configure operational features to support normal operations. To configure operational features for a DS-1 channel, perform the tasks described in Table 7. Enter all commands in DS-1 configuration mode unless otherwise noted.

Table 7    Configure Operational Features for a DS-1 Channel

Step

Task

Root Command

Notes

1.

Create or select (begin the configuration of) a DS-1 channel and access DS-1 configuration mode.

port ds1

Enter this command in global configuration mode.

2.

Specify general attributes for the channel (all attributes are optional):

 

Associate a description with the channel.

description (port, channel)

You can enter this command in port configuration mode as well.

 

Specify the framing.

framing (DS-1, DS-3, E1, E3)

 
 

Set the speed of the channel.

speed (DS-1)

 
 

Specify the MTU packet size without fragmentation.

mtu (channel)

 
 

Set the CRC length.

crc32

 
 

Specify the clock source.

clock-source (E/T-carrier)

 
 

Specify the idle character.

idle-character

 
 

Define the range of time slots for the DS-0 channels on the channel.

timeslot

 
 

Enable the detection or generation of yellow alarms.

yellow-alarm

 
 

Enable the channel to respond to or ignore remote loopback requests.

equipment-loopback (DS-1 and DS-3)

This command is only available in DS-1 or DS-3 configuration mode.

 

Specify the type of encapsulation.

encapsulation (channels)

 
 

(Optional) Enable PAP, CHAP, PAP-CHAP, or CHAP-PAP local authentication of static links.

authentication (local PAP, CHAP)

 

3.

Specify the parameters for the Cisco HDLC keepalive function.

keepalive (channel)

 
 

Enable the inversion of the data stream.

invert-data

 
 

Apply an existing bulkstats schema profile to the channel.

bulkstats schema

Use this command only if you are not adding the channel to an MP or MFR bundle.

4.

Add the channel to an existing MP or MFR bundle.

link-group

The channel must have PPP or Frame Relay encapsulation to add it to an MP or MFR bundle, respectively.

5.

(Optional) Enable PAP, CHAP, PAP-CHAP, or CHAP-PAP local authentication of static links.

authentication (local PAP, CHAP)

MP link groups only.

6.

Bind the channel to an existing interface in an existing context.

bind interface

Use this command only if you have not added the channel to an MP or MFR bundle or if you do not intend to create Frame Relay PVCs on it.

7.

Enable the channel (begin operations on it).

shutdown (Channel)

Use the no form to enable the channel.

You are now ready to use the channel or configure Frame Relay PVCs on the channel. For information about configuring Frame Relay PVCs, see the document, Configuring Circuits.

2.3.2   Configure the Maintenance Feature for a DS-1 Channel

You configure the maintenance feature only if a channel is experiencing problems. To configure the maintenance feature for a DS-1 channel, perform the task described in Table 8.

Table 8    Configure the Maintenance Feature for a DS-1 Channel

Task

Root Command

Notes

Change to a loopback state on the channel to test channel operation.

loopback (channels)

Enter this command in DS-1 configuration mode.

2.4   Configuring Clear-Channel E3 Port

To configure a clear-channel E3 port, perform the tasks in the following sections.

2.4.1   Configure Operational Features for a Clear-Channel E3 Port

You configure operational features to support normal operations. To configure operational features for a clear-channel E3 port, perform the tasks described in Table 9. Unless otherwise noted, enter all commands in E3 configuration mode.

Table 9    Configure Operational Features for a Clear-Channel E3 Port

Step

Task

Root Command

Notes

1.

Select (begin the configuration of) a clear-channel E3 port and access E3 configuration mode.

port e3

Enter this command in global configuration mode.

2.

Specify general attributes for the port (all attributes are optional):

 

Associate a description with the port.

description (port, channel)

 
 

Specify the framing.

framing (DS-1, DS-3, E1, E3)

 
 

Specify the MTU packet size without fragmentation.

mtu (channel)

 
 

Set the CRC length.

crc32

 
 

Specify the clock source.

clock-source (E/T-carrier)

 
 

Specify the idle character.

idle-character

 
 

Enable the national bit.

national

 
 

Specify the type of encapsulation.

encapsulation (channels)

 
 

Specify the parameters for the Cisco HDLC keepalive function.

keepalive (channel)

 
 

Apply an existing bulkstats schema profile to the port.

bulkstats schema

 

3.

Bind the port to an existing interface in an existing context.

bind interface

Enter this command in port configuration mode. Use this command only if you do not intend to create Frame Relay PVCs on it.

4.

Enable the port (begin operations on it).

shutdown (Channel)

Enter this command in port configuration mode. Use the no form to enable the port.

You are now ready to use the port or configure Frame Relay PVCs on it. For information about configuring Frame Relay PVCs, see the document, Configuring Circuits.

2.4.2   Configure the Maintenance Feature for a Clear-Channel E3 Port

You configure the maintenance feature only if a port is experiencing problems. To configure the maintenance feature for a clear-channel E3 port, perform the task described in Table 10.

Table 10    Configure the Maintenance Feature for a Clear-Channel E3 Port

Task

Root Command

Notes

Change to a loopback state on the port to test port operation.

loopback (channels)

Enter this command in E3 configuration mode.

2.5   Configuring Channelized STM-1 Ports

Each channelized STM-1 port supports up to 63 E1 channels. To configure a channelized STM-1 port, perform the tasks in the following sections.

2.5.1   Configure Operational Features for a Channelized STM-1 Port

You configure operational features to support normal operations. To configure operational features for a channelized STM-1 port, perform the tasks described in Table 11. Unless otherwise noted, enter all commands in STM-1 configuration mode.

Table 11    Configure Operational Features for a Channelized STM-1 Port

Step

Task

Root Command

Notes(1)

1.

Select (begin the configuration of) a channelized STM-1 port and access STM-1 configuration mode.

port channelized-stm1

Enter this command in global configuration mode.

2.

Specify general attributes for the port (all attributes are optional):

   

3.

Associate a description with the port.

description (port, channel)

Enter this command in port configuration mode.

4.

Select the AUG mapping.

aug-mapping

The default value is AU-4 mapping.

5.

Select an AU-3 group.

au3

This command is not available unless you have selected AU-3 mapping.

6.

Apply an existing bulkstats schema profile to the port.

bulkstats schema

 

7.

Enable the port (begin operations on it).

shutdown (Channel)

Use the no form to enable the port.

(1)  The XCRP4 Controller card supports channelized STM-1c traffic cards traffic cards, but only when installed in the SmartEdge 800 chassis.


You are now ready to configure the E1 channels on the port. To configure an E1 channel, see the Configuring E1 Channels or Ports section.

2.5.2   Configure Maintenance Features for a Channelized STM-1 Port

You configure the maintenance features only if a port is experiencing problems. To configure the maintenance features for a channelized STM-1 port, perform the tasks described in Table 12. Enter all commands in STM-1 configuration mode, unless otherwise noted.

Table 12    Configure Maintenance Features for a Channelized STM-1 Port

Step

Task

Root Command

Notes

1.

Specify a path trace message or the message length.

path-trace

Enter this command in STM-1 or AU3 configuration mode.

2.

Change to a loopback state on the port to test port operation.

loopback (channels)

 

2.6   Configuring E1 Channels or Ports

2.6.1   Configure Operational Features for an E1 Channel or Port

You configure operational features to support normal operations. To configure an E1 channel or port for normal operations, perform the tasks described in one of the following sections:

2.6.1.1   Clear-Channel E1 Channel or Port

To configure operational features for a clear-channel E1 channel or port, perform the tasks described in Table 13. Unless otherwise noted, enter all commands in E1 configuration mode.

Table 13    Configure Operational Features for a Clear-Channel E1 Channel or Port

Step

Task

Root Command

Notes

1.

Select (begin the configuration of) an E1 channel or port and access E1 configuration mode.

port e1

Enter this command in global configuration mode.

2.

Specify general attributes for the channel or port (all attributes are optional):

 

Associate a description with the channel or port.

description (port, channel)

 
 

Specify the framing.

framing (DS-1, DS-3, E1, E3)

Specify the unframed keyword for a clear-channel E1 channel or port.

 

Specify the MTU packet size without fragmentation.

mtu (channel)

 
 

Set the CRC length.

crc32

 
 

Specify the clock source.

clock-source (E/T-carrier)

 
 

Specify the idle character.

idle-character

 
 

Specify the type of encapsulation.

encapsulation (channels)

 
 

Specify the parameters for the Cisco HDLC keepalive function.

keepalive (channel)

 
 

Enable the inversion of the data stream.

invert-data

 
 

Apply an existing bulkstats schema profile to the channel or port.

bulkstats schema

Use this command only if you are not adding the channel or port to an MP or MFR bundle.

 

(Optional) Enable PAP, CHAP, PAP-CHAP, or CHAP-PAP local authentication of static links.

authentication (local PAP, CHAP)

 

3.

Add the channel or port to an existing MP or MFR bundle.

link-group

The channel or port must have PPP or Frame Relay encapsulation to add it to an MP or MFR bundle, respectively.

4.

(Optional) Enable PAP, CHAP, PAP-CHAP, or CHAP-PAP local authentication of static links.

authentication (local PAP, CHAP)

MP link groups only.

5.

Bind the channel or port to an existing interface in an existing context.

bind interface

Use this command only if you have not added the channel or port to an MP or MFR bundle or if you do not intend to create Frame Relay PVCs on it.

6.

Enable the channel or port (begin operations on it).

shutdown (Channel)

Use the no form to enable the channel or port.

If you have not added the clear-channel E1 channel or port to an MP or MFR bundle, you are now ready to use the channel or port, or configure Frame Relay PVCs on it. For information about configuring Frame Relay PVCs, see the document, Configuring Circuits.

2.6.1.2   Channelized E1 Channel or Port

To configure operational features for a channelized E1 channel or port, perform the tasks described in Table 14. Unless otherwise noted, enter all commands in E1 configuration mode.

Table 14    Configure Operational Features for an Channelized E1 Channel or Port

Step

Task

Root Command

Notes

1.

Select (begin the configuration of) an E1 channel or port and access E1 configuration mode.

port e1

Enter this command in global configuration mode.

2.

Specify general attributes for the channel or port (all attributes are optional):

 

Associate a description with the channel or port.

description (port, channel)

 
 

Specify the framing.

framing (DS-1, DS-3, E1, E3)

Specify either the crc4 or non-crc4 keyword for a channelized E1 channel or port.

 

Specify the clock source.

clock-source (E/T-carrier)

 
 

Apply an existing bulkstats schema profile to the channel or port.

bulkstats schema

 
 

Enable PAP, CHAP, PAP-CHAP, or CHAP-PAP local authentication of static links.

authentication (local PAP, CHAP)

 

3.

Enable the channel or port (begin operations on it).

shutdown (Channel)

Use the no form to enable the channel or port.

You are now ready to configure its DS-0 channel groups on the channelized E1 channel or port. For more information, see the Configuring a DS-0 Channel Group section.

2.6.2   Configure the Maintenance Feature for an E1 Channel or Port

You configure the maintenance feature only if a channel or port is experiencing problems. To configure the maintenance feature for a channelized or clear-channel E1 channel or port, perform the task described in Table 15.

Table 15    Configure the Maintenance Feature for an E1 Channel or Port

Task

Root Command

Notes

Change to a loopback state on the channel or port to test channel or port operation.

loopback (channels)

Enter this command in E1 configuration mode.

2.7   Configuring a DS-0 Channel Group

You configure a DS-0 channel group on a channelized E1 channel or port.

2.7.1   Configure Operational Features for a DS-0 Channel Group

You configure operational features to support normal operations. To configure operational features for a DS-0 channel group, perform the tasks described in Table 16. Unless otherwise noted, enter all commands in DS-0 group configuration mode.

Table 16    Configure Operational Features for a DS-0 Channel Group

Step

Task

Root Command

Notes

1.

Create or select (begin the configuration of) a DS-0 channel group and access DS-0 group configuration mode.

port ds0s

Enter this command in global configuration mode.

2.

Specify general attributes for the channel group (all attributes are optional):

 

Associate a description with the channel group.

description (port, channel)

 
 

Define the range of time slots for the group.

timeslot

 
 

Specify the MTU packet size without fragmentation.

mtu (channel)

 
 

Set the CRC length.

crc32

 
 

Specify the idle character.

idle-character

 
 

Specify the type of encapsulation.

encapsulation (channels)

 
 

Specify the parameters for the Cisco HDLC keepalive function.

keepalive (channel)

 
 

Enable the inversion of the data stream.

invert-data

 
 

Enable notifications of up and down conditions for Cisco HDLC, PPP, and Frame Relay encapsulation layers.

traps (DS-0 group configuration)

 
 

Apply an existing bulkstats schema profile to the channel.

bulkstats schema

 

3.

Bind the channel group to an existing interface in an existing context.

bind interface

Use this command only if you do not intend to create Frame Relay PVCs on the channel group.

4.

Enable the channel group (begin operations on it).

shutdown (Channel)

Use the no form to enable the channel group.

You are now ready to use the channel group or configure Frame Relay PVCs on it. For information about configuring Frame Relay PVCs, see the document, Configuring Circuits.

2.7.2   Configure the Maintenance Feature for a DS-0 Channel Group

You configure the maintenance feature only if a channel group is experiencing a problem. To configure the maintenance feature for a DS-0 channel group, perform the tasks described in Table 17.

Table 17    Configure the Maintenance Feature for a DS-0 Channel Group

Task

Root Command

Notes

Change to a loopback state on the channel group to test channel group operation.

loopback (channels)

Enter this command in DS-0 group configuration mode.

2.8   Port and Channel Operations

You can display various types of information about ATM, Ethernet, Packet over SONET/SDH (POS), clear-channel ports and channels, and channelized ports and channels; clear port counters; and test port and channel operation by performing the appropriate task listed in Table 18. Enter the clear commands in exec mode; enter the show commands in any mode.

Table 18    Port and Channel Operations

Task

Root Command

Clear counters associated with the specified port or channel.

clear port counters

Clear performance-monitoring (PM) statistics for the specified port, a specific channel, all channels on a channelized port, or all channels in the system.

show port perf-monitor

Display the current status of one or more ports or channels, and provide continuous updates to the status.

monitor port

Display the bindings for one or more interfaces and the ports to which they are bound.

show ip interface

Display a list of the ports in the system.

show port

Display general counters and counters specific to the port or channel type.

show port counters

Display the medium access control (MAC) address and other lower-layer settings of a single port, all ports on a card, or all ports in the system; display configuration information and other lower-layer settings, including channels, for a single port, all ports on a card, or all ports in the system.

show port detail

Display configuration information and PM statistics for a specific port or channel.

show port perf-monitor

Display detailed information about the transceivers installed in the SmartEdge router, including their current status

show port transceiver

3   Configuration Examples

This section provides examples of configurations for a channelized OC-12 port, a DS-3 channel and port, a DS-1 channel, a clear-channel E3 port, a channelized STM-1 port, an E1 channel and port and a DS-0 channel group.

3.1   Channelized OC-12 Port

The following example shows how to configure port 1 on the channelized OC-12 traffic card in slot 4 using all the defaults:

[local]Redback#config 
[local]Redback(config)#port channelized-oc12 4/1 
[local]Redback(config-port)#description channelized OC-12
[local]Redback(config-port)#no shutdown

3.2   DS-3 Channel and Port

The following example shows how to configure clear-channel DS-3 channel 1 on the first constituent STS-1 channel on port 1 on the channelized OC-12 traffic card in slot 4 using all the defaults, and set the encapsulation to frame-relay:

[local]Redback#config 
[local]Redback(config)#port ds3 4/1:1 
[local]Redback(config-ds3)#description clear-channel ds3
[local]Redback(config-ds3)#encapsulation frame-relay 
[local]Redback(config-ds3)#no shutdown

The following example shows how to configure port 1 on the channelized DS-3 traffic card in slot 2 using all the defaults:

[local]Redback#config 
[local]Redback(config)#port channelized-ds3 2/1 
[local]Redback(config-ds3)#description channelized ds3
[local]Redback(config-ds3)#no shutdown

3.3   DS-1 Channel

The following example shows how to configure a DS-1 channel 1 on DS-3 port 1 on the channelized DS-3 traffic card in slot 2 using all the defaults, but specifying the encapsulation:

[local]Redback#config 
[local]Redback(config)#port ds1 2/1:1 
[local]Redback(config-ds1)#description ds1 on DS-3 port
[local]Redback(config-ds1)#encapsulation frame-relay
[local]Redback(config-ds1)#no shutdown

The following example shows how to configure a DS-1 channel 2 on DS-3 channel 1 on port 1 on the channelized OC-12 traffic card in slot 4 using all the defaults, but specifying the encapsulation:

[local]Redback#config 
[local]Redback(config)#port ds1 4/1:1:2 
[local]Redback(config-ds1)#description ds1 on channelized OC-12 port
[local]Redback(config-ds1)#encapsulation frame-relay
[local]Redback(config-ds1)#no shutdown

3.4   Clear-Channel E3 Port

The following example shows how to configure clear-channel E3 port 1 on the clear-channel E3 traffic card in slot 4 using all the defaults, and set the encapsulation to frame-relay:

[local]Redback#config 
[local]Redback(config)#port e3 4/1 
[local]Redback(config-e3)#description clear-channel e3
[local]Redback(config-e3)#encapsulation frame-relay 
[local]Redback(config-e3)#no shutdown

3.5   Channelized STM-1 Port

The following example shows how to configure port 1 on the channelized STM-1 traffic card in slot 3 using all the defaults:

[local]Redback#config 
[local]Redback(config)#port channelized-stm1 3/1 
[local]Redback(config-stm1)#description channelized STM-1
[local]Redback(config-stm1)#no shutdown

3.6   E1 Channel and Port

The following example shows how to configure clear-channel E1 channel 1 on port 1 on the channelized STM-1 traffic card in slot 3 using all the defaults but specifying the encapsulation:

[local]Redback#config 
[local]Redback(config)#port e1 3/1:1 
[local]Redback(config-e1)#description clear-channel E1
[local]Redback(config-e1)#framing unframed
[local]Redback(config-e1)#encapsulation frame-relay
[local]Redback(config-e1)#no shutdown

The following example shows how to configure port 1 on the E1 traffic card in slot 5 using all the defaults:

[local]Redback#config 
[local]Redback(config)#port e1 5/1 
[local]Redback(config-e1)#description channelized E1
[local]Redback(config-e1)#no shutdown

3.7   DS-0 Channel Group

The following example shows how to configure a DS-0 channel group with time slots 7, 9, 11, 13, 15, on channelized E1 port 1 on the E1 traffic card in slot 5 using all the defaults:

[local]Redback#config
[local]Redback(config)#port ds0s 5/1:7
[local]Redback(config-ds0-group)#description DS-0 channel group
[local]Redback(config-ds0-group)#timeslot 7,9,13,15
[local]Redback(config-ds0-group)#no shutdown