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224 CHAPTER 13: FUNDAMENTAL CT1/PRI INTERFACE CONFIGURATION COMMANDS
error-diffusion restraint restart-channel
Syntax error-diffusion restraint restart-channel serial interface-number:set-number
View System view
Parameter serial interface-number:set-number: Specifies a channel formed on a CE1/PRI
interface. The interface-number argument is a CE1/PRI interface number, and the
set-number argument is a channel set number.
Description Use the
error-diffusion restraint restart-channel command to bring up a
channel previously shut down by the error packet diffusion restraint function.
n
■ The support of this command varies with device model.
■ This command applies to CT1/PRI interfaces and CE1/PRI interfaces only.
Example # Bring up channel Serial 2/0:0 (assuming that the channel is shut down by the
error packet diffusion restraint function).
<Sysname> system-view
[Sysname] error-diffusion restraint restart-channel serial 2/0:0
fdl
Syntax fdl { ansi | att | none }
undo fdl
View CT1/PRI interface view
Parameter ansi: Implements ANSI T1.403 FDL.
att: Implements AT&T TR 54016 FDL.
none: Disables facilities data link (FDL).
Description Use the
fdl command to set the behavior of the CT1/PRI interface on the FDL in
ESF framing.
Use the
undo fdl command to restore the default.
By default, FDL is disabled (none).
FDL is an embedded 4 kbps overhead channel within the ESF format for
transmitting performance statistics or loopback code.
Example # Implement AT&T TR 54016 FDL on interface T1 2/0.