T1/E1 Configuration Tasks

Before you configure T1 or E1 on an interface, you must configure SONET or SDH. See SONET/SDH Configuration Tasks.

To configure a T1 or an E1 over SONET or SDH on a cOCx/STMx interface:

1. Configure a tributary for the path.
2. (Optional) Assign a text description or an alias to the interface.
3. Configure one of the following:
   • An unframed E1 line. (See Configuring T1 and E1 Lines .)
   • A T1 or an E1 line. (See Configuring T1 and E1 Lines .)

For detailed examples, see Configuration Examples.

path ds1|e1

• Use to create and configure SONET tributaries, SDH tributaries, and T1 or E1 on the path.
• Example

  host1(config-controller)#path 2 ds1 1/7/4 vt15

• Use the no version to delete SONET and SDH tributaries.
• See path ds1|e1.

path ds1|e1 description

• Use to assign a text description or an alias to a T1/E1 over SONET/SDH VT layer on channelized SONET and SDH interfaces.
• You can use this command to help you identify the interface and keep track of interface connections.
• The description or alias can be a maximum of 80 characters.
• Use show controllers sonet ds1|e1 to display the text description.
• Example

  host1(config-controller)#path 2 ds1 1/7/4 description nyc01

• Use the no version to remove the text description or alias.
• See path ds1|e1 description.

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