61200.130L1-1 FSU User Manual 69
Chapter 7. Configuring the Network Port
Chapter 7Configuring the Network PortNETWORK PORT
Access the Network Port menus by selecting Network Port from
the Configuration menu. See the menu tree in Figure 7-1. The
network port is always used in frame relay protocol configura-
tions. The network port terminates the user end of the frame
relay UNI interface. The FSU supports three standard PVC
signaling formats: LMI, ANSI T1.617-D, and ITU Q.933-A. The
selected signaling format is used to poll the network end of the
UNI interface and retrieve virtual circuit information. Option-
ally the polling process can be disabled.
User data is encapsulated into standard frame relay formatted
frames using two methods. FRF 3.1 IA procedures are used for
IP and LLC2 protocols while a proprietary method is used for
transparent protocol mode. Virtual circuit sharing is allowed for
both methods.
Configure the Network Port before the DTE Ports. Selections made will
affect the choices available for the DTE ports.
Connection
Connection is made through the internal DDS 56/64 DSU (if
installed). If this option is not installed, use an external DDS or
fractional T1 (up to 512 kbps) DSU.