When the port is configured profile35b and this port does not support profile35b on CPE,the configuration parameter contains the G.993.2 profile to be allowed automatic fallback to profilexx. It is coded in a bitmap representation (0 if not allowed,1 if allowed. Starting from the left,the first represents bit 0). Options: 1. profile8a(bit 0) -enable/disable fallback to profile8a 2. profile8b(bit 1) -enable/disable fallback to profile8b 3. profile8c(bit 2) -enable/disable fallback to profile8c 4. profile8d(bit 3) -enable/disable fallback to profile8d 5. profile12a(bit 4) -enable/disable fallback to profile12a 6. profile12b(bit 5) -enable/disable fallback to profile12b 7. profile17a(bit 6) -enable/disable fallback to profile17a 8. profile30a(bit 7) -enable/disable fallback to profile30a 9. reserved1(bit 8) -reserved1 10.reserved2(bit 9) -reserved2 11.reserved3(bit 10) -reserved3 12.reserved4(bit 11) -reserved4 13.reserved5(bit 12) -reserved5 14.reserved6(bit 13) -reserved6 15.reserved7(bit 14) -reserved7 16.reserved8(bit 15) -reserved8 Default value:0x02(enabled fallback to profile17a)