Cisco MGX 8850 PXM1E Software Configuration Manual And Command Reference page 256

Chapter 4 AUSM Command Reference
restartimagrp
Example
Restart IMA group 1 using the previously learned IMA group ID for the far end.
PXM1E_SJ.1.1.AUSMB8.a > restartimagrp 1 2
PXM1E_SJ.1.1.AUSMB8.a >
Cisco AUSM Software Configuration Guide and Command Reference for MGX 8850 (PXM1E) and MGX 8830
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Release 3, Part Number 78-14254-01 Rev. A0, October 2002