Specifications

Service Configuration 5-3
Setting up a Frame Relay Connection
located at “B”, is attached to the other MGX 8220 shelf. This chapter describes how a frame relay
connection can be established to permit bidirectional communication between the frame relay
equipment at “A” and “B”.
Figure5-2 Frame Relay Connection through an MGX 8220/BPX Network
To make the connection, the path from “A” to “B” is made up of three segments as shown in
Figure5-2. When using CLI, each segment must be established and configured separately.
Two segments span from the FRSM to the BNM on the MGX 8220 shelves. These segments are part
ATM and part frame relay with the conversion being made in the MGX 8220 shelves.
There is also an ATM trunk segment that spans the BPX backbone network from one of the
BPX nodes to the other BPX node, this segment terminates on a BNI feeder trunk in each node. This
segment may include intermediary BPX nodes (not shown in the diagram).
The links between the segments must be configured properly so that the three segments make up one
complete end to end connection from “A” to “B”. This process consists primarily of ensuring that
the VPI between the MGX 8220 shelf and it collocated BPX switch must contain the MGX 8220 slot
number of the FRSM and the VCI must contain the logical channel number assigned to the virtual
circuit.
Establish the Customer Equipment to BPX Segments
This procedure must be performed on the MGX 8220 at BOTH ends of the connection (“A” and
“B”).
To establish an end to end frame relay connection, perform the following steps:
Step1 On the MGX 8220 shelf, login to the FRSM that is to be used for the frame relay
connection.
Step2 If not enabled, enable the T1 line to be used for the frame relay connection by performing
an addln command using the physical FRSM connector number (1 to 4) connected to the
T1 line.