The value of tmnxVdoIfCpmProtectPolicyId specifies the row index
in the TIMETRA-SECURITY-MIB::tmnxCpmProtPolTable corresponding to the
CPM Protection policy that would be applied to all RTCP control
traffic destined to this video interface.
If the value of this object is set to '0', then no CPM protection
policy has been provisioned for this video interface and the
DOS protection is disabled.