Verilink WANsuite 5260 Reference Manual page 53

Figure 3.19
Interface Type If this service is connected to a Frame Relay network, the Interface Type
should be set to "UNI" as it is the user side of a User-to-Network interface. If
it is connected to a FRAD/router, the Interface Type should be set to "NI" as
it is the network side of a User-to-Network interface. If it is connected to an
equipment set for Network-to-Network interface, the Interface Type should be
set to "NNI."
Link Management This parameter should be set to the link management used by the equipment
connected to it. If set to "Auto," the unit will learn the link management type
and display it on the status portion of this screen.
Once it discovers the link management type, the unit should be set to the
discovered value so that subsequent unit or network re-initialization will be
faster.
Max Frame Size If Auto Diagnostic is set to "Yes," the unit will discard received frames that
are larger than the maximum frame size. If Auto Diagnostic is set to "No,"
these large received frames will be sent, but will be counted in the Rx Invalid
statistics.
Frame Relay Service Details Screen
Values: UNI, NI, NNI
Default: UNI if interface is Network, NI if interface is Serial
Values: Auto, ANSI, CCITT, LMI, None
Default: ANSI
Values: 64–4096
Default: 2500
W e b S e r v e r I n t e r f a c e 3-23