
Configuring Line Services
7-2
Multiline Example
Suppose that your network uses Bay Networks routers to connect two sites, one in
New York City and one in Los Angeles (F
igure 7-1). A high volume of important
data travels between the two sites via three synchronous lines.
Grouping the three synchronous lines into one multiline circuit would
• Reduce congestion by distributing the volume of traffic more evenly among
the three lines
• Decrease the chance of data loss if a connection fails
Figure 7-1. Multiline Circuit Composed of Three Synchronous Lines
Types of Multiline Circuits
There are two types of multiline circuits:
• Circuits that include several physical lines
• Circuits on one physical line with several data paths that have separate
addresses
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Router
NYC
Router
LA
Three SYNC lines form
one multiline circuit
with three data paths
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
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