CDM-840 Remote Router MN-CDM840
Appendix G Revision 3
G–20
beginning of the cycle. With the assignment, the CDM-840 transmits management data in its
assigned slot and awaits acknowledgment and next assignment.
• After the CDM-840 completes its registration protocol, it releases the active flag in the next
RID cycle. At this point, the HCC will remove the processing CDM-840’s IP Address from the
list clearing the SRS allocation. If the CDM-840 is not switched out of ECM mode, it will
proceed to send a Status Update Message (SUM) every minute (or as configured by VMS
during registration) in order to maintain its active status with VMS. Typically, a SUM should
only require one transmission unless there is contention, in which case the CDM-840 will go
into back-off mode until the CDM-840 received acknowledgment from the HCC that the
SUM was successfully transmitted.
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