Configuring Channels and Clear-Channel and Channelized Ports

Contents

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:

Clear-channel ports—DS-3, E1, E3 traffic cards
Channelized ports—DS-3, E1, channelized OC-12, channelized STM-1 traffic cards

Restrictions:

The SmartEdge 100 router does not support the clear-channel and channelized ports described in this document.
The XCRP4 Controller card does not support channelized OC-12c/STM-4c traffic cards.
The XCRP4 Controller card supports channelized STM-1c traffic cards, but only when installed in the SmartEdge 800 chassis.
The SmartEdge 1200 router does not support first-generation SONET/SDH traffic cards.

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:

Each port on a channelized OC-12 to DS-3 or OC-12 to DS-3/DS-1 traffic card provides the bandwidth for up to 12 DS-3 channels.
Each port on a channelized STM-1 traffic card provides the bandwidth for up to 63 E1 channels; E1 channels can be channelized or clear-channel.
A channelized DS-3 port or channel provides the bandwidth for 28 DS-1 channels, each of which has the bandwidth for 24 DS-0 channels.
A channelized E1 port or channel supports up to 31 DS-0 channels for user traffic in a DS-0 channel group.

1.3 Terminology

The term controller card refers to any version of the Cross-Connect Route Processor (XCRP4) Controller card, including the controller carrier card, unless otherwise noted.
The term controller carrier card refers to the controller functions on the circuit board within the SmartEdge 100 chassis. The term I/O carrier card refers to the traffic card functions on the circuit board; these functions are compatible with the similar functions that are implemented on all SmartEdge 400 and SmartEdge 800 traffic cards.
The term chassis refers to any SmartEdge chassis; the term SmartEdge 800 refers to any version of the SmartEdge 800 chassis; the term SmartEdge 800s refers only to the SmartEdge 800s chassis.
The term port refers to the physical entity on a traffic card.
The term channel refers to a time-division multiplexed segment of the bandwidth of an E1, E3, DS1, or DS3 port. This document uses the term subchannel to refer to a time-division multiplexed segment of a channel. Each channel is designated by its port number and channel number. Each subchannel is designated by its port number, channel number, and subchannel number.
The terms clear-channel and unchannelized are both used to refer to an E1, E3, DS1, or DS3 port that does not support channels. Channelized ports generally support both unchannelized operation and channelized operation.

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

1	Overview
1.1	Traffic Card Support for Channels
1.2	Bandwidth Provided by Channelized Ports
1.3	Terminology
2	Configuration and Operations Tasks
2.1	Configuring Channelized OC-12 Ports
2.2	Configuring DS-3 Channels or Ports
2.3	Configuring DS-1 Channels
2.4	Configuring Clear-Channel E3 Port
2.5	Configuring Channelized STM-1 Ports
2.6	Configuring E1 Channels or Ports
2.7	Configuring a DS-0 Channel Group
2.8	Port and Channel Operations
3	Configuration Examples
3.1	Channelized OC-12 Port
3.2	DS-3 Channel and Port
3.3	DS-1 Channel
3.4	Clear-Channel E3 Port
3.5	Channelized STM-1 Port
3.6	E1 Channel and Port
3.7	DS-0 Channel Group