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Configuring a Line Interface

To configure a line interface:

In the Instance Explorer, select the line interface that you want to configure.
Right-click, and select Configure.

The OC Config tab appears in the work area.

NOTE: The Sonet Path Speed parameter does not appear for cOC12 line modules.

Set the line interface parameters (Table 34).




 Table 34:  Line Interface Parameters  

 Field
 Description

 Name

 Identifier for the interface; generated automatically


 Alias

 Description of the interface; 0-15 characters; default: blank


 IfIndex

 Identifier for the interface on the particular line interface; generated automatically


 Operational

 Current operational status of the interface


 Administrative

 Desired status of the interface: Up/Down; default: Up


 Transmit Clock


   Loop Timing—device receives its clocking from a network source
   Internal Module—device receives its clocking from a network source
   Internal Chassis—device receives its clocking from the configured system clock



 Sonet Path Speed


   Speed for SONET paths generated on the line interface

  
     OC3—Creates an OC3 SONET path with three DS3 channels on top of the line interface
     OC1—Creates three OC1 paths on top of the line interface
     Unspecified—Does not allow you to create or delete anything on the interface
  

   Enabled only when SDH is selected for synchronous mode
   Disabled if there are any DS3 or DS1 interfaces on the line interface
   Not visible for cOC12 line modules



 Synchronous Mode


   SONET—Synchronous Optical Network 

  
     disables Sonet Path Speed field and sets to it OC1
  

   SDH—Synchronous Digital Hierarchy 

  
     enables Sonet Path Speed field
  


 Loopback Mode


   No Loopback—Disables loopback mode
   Line Loopback—Loops the data toward the network; connects the received network signal directly to the transmit network signal line
   Internal Loopback—Loops the data toward the interface of the module; connects the local transmitted signal to the local received signal

Click Save.

Field	Description
Name	Identifier for the interface; generated automatically
Alias	Description of the interface; 0-15 characters; default: blank
IfIndex	Identifier for the interface on the particular line interface; generated automatically
Operational	Current operational status of the interface
Administrative	Desired status of the interface: Up/Down; default: Up
Transmit Clock	Loop Timing—device receives its clocking from a network source Internal Module—device receives its clocking from a network source Internal Chassis—device receives its clocking from the configured system clock
Sonet Path Speed	Speed for SONET paths generated on the line interface OC3—Creates an OC3 SONET path with three DS3 channels on top of the line interface OC1—Creates three OC1 paths on top of the line interface Unspecified—Does not allow you to create or delete anything on the interface Enabled only when SDH is selected for synchronous mode Disabled if there are any DS3 or DS1 interfaces on the line interface Not visible for cOC12 line modules
Synchronous Mode	SONET—Synchronous Optical Network disables Sonet Path Speed field and sets to it OC1 SDH—Synchronous Digital Hierarchy enables Sonet Path Speed field
Loopback Mode	No Loopback—Disables loopback mode Line Loopback—Loops the data toward the network; connects the received network signal directly to the transmit network signal line Internal Loopback—Loops the data toward the interface of the module; connects the local transmitted signal to the local received signal

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