Chapter 6. DTE Port Configuration
Frame Relay Protocol
The frame relay protocol is a synchronous protocol used to concentrate two different devices into a common frame relay link to the network. While configured for frame relay protocol, the FSU accepts frame relay frames from a router or a FRAD and routes to/from the network port based on the DLCI address. The address can be modified or preserved from the DTE and network side based on the frame relay address table. FECN, BECN, DE, and C/R states are not changed as frames are trans- ferred between the DTE and the network ports. The menu tree in Figure
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are V.35 and
Synchronous Bit Rate (RATE)
Select the operating speed of the DTE interface. The selections are 2400, 4800, and 9600 bps and 19.2, 38.4, 56, 64, 112, 128, 168, 192, 224, 256, 280, 320, 384, 448, and 512 kbps.
Speed selections made for the Network Port affect the choices available for the DTE ports.
Synchronous Idle Method (IDLE)
Enable the FSU to transmit flags or all ones. When operating the frame relay protocol, configure this option to transmit flags.
Hardware Flow Control (HDW FLOW CTRL)
When enabled, the FSU varies the transmit clock rate to tempo- rarily limit the transmit data rate to the FSU.
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