3com MSR 20-20 참조 매뉴얼

By default, the line coding format of an ATM E1 interface is HDB3, and that of an 
ATM T1 interface is B8ZS.

# Set the line coding format to AMI for ATM 5/0 interface.

<Sysname> system-view

[Sysname] interface atm 5/0

[Sysname-Atm5/0] code ami 

differential-delay milliseconds

IMA group interface view

milliseconds: Maximum differential delay, in the range 25 to 100 milliseconds.

Use the differential-delay command to set the maximum differential delay for 
the member links in the IMA group.

Use the undo differential-delay command to restore the default, that is, 25 
milliseconds.

# Set the maximum differential delay for the member links in IMA group 1 to 25 
milliseconds.

<Sysname> system-view

[Sysname] interface atm 5/0

[Sysname-Atm5/0] ima ima-group 1

[Sysname-Atm5/0] interface ima-group 5/1

[Sysname-Ima-group5/1] differential-delay 25 

display interface ima-group [ group-interfacenumber ]

Any view

group-interfacenumber: IMA group interface number.

Use the display interface ima-group command to display the configuration 
and status information about an IMA group interface or all the IMA group 
interfaces.

If you specify the group-interfacenumber argument, this command displays the 
configuration and status information about the IMA group interface identified by 
the argument. Otherwise, this command displays the configuration and status 
information about all the IMA group interfaces.