EXFO FTB-8500 Series for FTB-500 - Manual (Page 425)

Tools Tabs
Ethernet and Fibre Channel Application 411
802.3ah Statistics

Parser Action: Bits 0 and 1 of the State byte report the Parser Action.
Forward (bits 1 and 0 are set to “00”): Device is forwarding
non-OAMPDUs to the higher sublayer.
Loopback (bits 1 and 0 are set to “01”): Device is looping back
non-OAMPDUs to the lower sublayer.
Discard (bits 1 and 0 are set to “10”): Device is discarding
non-OAMPDUs.

Max OAMPDU Size: Bits 0 to 10 of the OAMPDU Configuration
two-byte field report the maximum OAMPDU size. The Max OAMPDU
Size is the largest OAMPDU, in bytes, supported by the DTE.

Vendor Specific Info: The 32-bit Vendor Specific Information field
identifies the vendor’s product model and version.

Unidirectional: Bit 1 of the OAM Configuration byte reports
unidirectional support capability.
Supported (bit 1 is set to “1”): DTE is capable of sending OAMPDUs
when the receive path is non-operational.
Unsupported: (bit 1 is set to “0”): DTE is not capable of sending
OAMPDUs when the receive path is non-operational.

Loopback: Bit 2 of the OAM Configuration byte reports OAM remote
loopback support capability.
Supported (bit 2 is set to “1”): DTE is capable of OAM remote
loopback mode.
Unsupported (bit 2 is set to “0”): DTE is not capable of OAM remote
loopback mode.

OAM Mode: Bit 0 of the OAM Configuration byte reports OAM mode.
Active (bit 0 is set to “1”): DTE is configured in Active mode.
Passive (bit 0 is set to “0”): DTE is configured in Passive mode.