Multi-Tech Systems FR111 owner manual A Typical Application, Ordering a Frame Relay Line

1.3A Typical Application

A typical application for a MultiFRAD 100-Series is connecting a single non-frame relay device to a frame relay network. The MultiFRAD 100- Series is usually used at a remote site where a single DLCI and a single device needs to be connected to a frame relay network. A MultiFRAD 100-Series can connect any existing synchronous or asynchronous non-frame relay device to a frame relay network.

MultiMux

LAN 1	Trunk	Data
Ethernet Network

Ethernet

Channel 2			26
MultiMux	16	Frame Relay	MultiFRAD 100
	Trunk	Network	Remote Site 2
Channel 1	17
			27

PC

T1 DSU Trunk

Data

MultiFRAD II

Host Site

PC

MultiFRAD 100

Remote Site 1

Figure 1-2. Typical Frame Relay Network

A MultiFRAD is easily connected to a frame relay network. One Data Link Connection Identifier (DLCI) is required and it is provided by your local network service provider when you request (subscribe) for a local telephone line connection. When your local network service provider engineers your connection, a virtual circuit is established between your location and the destination of your connection. This virtual circuit is called a permanent virtual circuit (PVC).

1.3.1 Ordering a Frame Relay Line

Ordering frame relay services from your local telephone company involves connecting the physical line, defining the port connection, configuring the PVC through the network, and assigning the Data Link Connection Identifier (DLCI). The DLCI is a number between 16 and 1007 that identifies the PVC between your MultiFRAD and the phone company's switch. The DLCI is assigned at the same time your local service provider defines the permanent virtual circuit (PVC) that is the path to your destination. When a PVC is assigned, an average guaran- teed throughput is negotiated with the service provider. The guaranteed throughput is called committed information rate (CIR) and is based on

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