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t1 yellow detect
t1 yellow generate
Configuring an HDLC Channel
Copyright © 2010, Juniper Networks, Inc.
Use the no version to disable transmission of the specified FDL message or all FDL
messages.
See t1 fdl transmit.
Use to detect yellow alarm for T1 channels.
By default, T1 channels detect alarms.
Example
host1(config-controll)#t1 6,10-14,19 yellow detect
Use the no version to disable detection of yellow alarms.
See t1 yellow.
Use to generate a yellow alarm when a loss of frame or loss of signal condition is
detected on T1 channels.
By default, T1 channels generate alarms.
Example
host1(config-controll)#t1 6,10-14,19 yellow generate
Use the no version to disable generation of yellow alarms.
See t1 yellow.
You must configure an HDLC channel for each group of fractional T1 lines and each full
T1 line.
To configure an HDLC channel, specify a serial interface (for example, HDLC channel in
slot 0, port 1, channel 1, subchannel 5).
host1(config)#interface serial 0/1:1/5
Optional Tasks
The following configuration tasks are optional when you configure an HDLC channel on
a channelized T3 interface:
Configure the CRC.
Specify the HDLC idle character.
Enable data inversion on the interface.
Set the time interval for monitoring bit and packet rates.
Set the MRU.
Set the MTU.
Assign a text description or an alias to the serial interface.
Chapter 1: Configuring Channelized T3 Interfaces
19
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