
Site Manager Line Services Parameters
114078 Rev. A A-9
FDDI MAC Attribute Parameters
FDDI Path Attribute Parameters
Parameter: LLC Data Enable
Path: FDDI Connector > Edit Line > Edit FDDI Parameters > Expert >
MAC Attributes > FDDI MAC Attributes
Default: Enable
Options: Enable
| Disable
Function: Specifies whether the MAC is available to transmit and receive Logical Link
Control (LLC) Protocol Data Units (PDUs). If you accept Enable, the interface
to the MAC entity is available to exchange PDUs between the MAC and the
local LLC entity when the ring becomes operational. Setting this attribute does
not affect transferring and receiving MAC or SMT frame types.
Instructions: Accept the default, Enable, if you want the MAC available for transmitting and
receiving LLC PDUs; specify Disable if you do not want the MAC available for
transmitting and receiving LLC PDUs.
MIB Object ID: 13.6.1.4.1.18.3.4.15.2.3.1.17
Parameter: Tvx Lower Bound (ms)
Path: FDDI Connector > Edit Line > Edit FDDI Parameters > Expert >
Path Attributes > FDDI Path Attributes
Default: 2.5 milliseconds (ms)
Options: The value must be greater than zero and less than the value of Requested TTRT.
If the value of Requested TTRT is greater than 5.2 ms, set this parameter to a
value less than or equal to 5.2 ms. For example, if the value of Requested TTRT
is 165 ms, the value for Tvx Lower Bound must be less than or equal to 5.2 ms.
Function: Specifies the minimum time value of the Valid Transmission Timer (TVX).
Instructions: Accept the default value of 2.5 milliseconds or specify a new value less than or
equal to 5.2 milliseconds and less than the value of Requested TTRT.
MIB Object ID: 1.3.6.1.4.1.18.3.4.15.3.3.1.5
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