Setting this value to disabled causes the CO and CPE to cease EFM Discovery communications. Bond groups and members must by created manually. Setting this value to optional has the following results depending on the current setup. If no EFM Bond group exists and the CO and CPE have multiple connections connecting them and both support EFM Discovery, then an EFM Bond group will be dynamically created and members will be added to the group. If an EFM bond group exists and it was created dynamically, the CO and CPE will start EFM Discovery. If the EFM Bond group was created manually or by ZMS, EFM Discovery will not be started. When setting this value to required, both the CO and CPE must be capable of supporting EFM Discovery. If two or more connections exist between the CO and CPE, an EFM Bond group will be dynamically created and members will be added to the group. This object MUST be maintained in a persistent manner.