Configuring T1 Start and End Flags
By default, a T1 interface shares the transmission of the start and end flags.
To configure a T1 interface to wait two idle cycles between the start and end flags, include the start-end-flag statement with the filler option at the [edit interfaces interface-name t1-options] hierarchy level:
[edit interfaces interface-name t1-options]start-end-flag filler;
To revert to the default behavior, sharing the transmission of start and end flags, include the start-end-flag statement with the shared option at the [edit interfaces interface-name t1-options] hierarchy level:
[edit interfaces interface-name t1-options]start-end-flag shared;
