Patton electronic SmartNode 4110 Series ユーザーズマニュアル
Introduction
178
SmartWare Software Configuration Guide
15 • Frame Relay configuration
Introduction
This chapter provides an overview of the Frame Relay protocol and describes the tasks involved in its configu-
ration includes the following sections:
ration includes the following sections:
•
Frame Relay configuration task list
•
Configuration tasks
•
Examples
Frame Relay is an example of a packet-switched technology. Packet-switched networks enable end stations to
dynamically share the network medium and the available bandwidth. Variable-length packets are used for more
efficient and flexible transfers. These packets are then switched between the various network segments until the
destination is reached. Statistical multiplexing techniques control network access in a packet-switched net-
work. The advantage of this technique is that it provides more flexibility and more efficient use of bandwidth.
dynamically share the network medium and the available bandwidth. Variable-length packets are used for more
efficient and flexible transfers. These packets are then switched between the various network segments until the
destination is reached. Statistical multiplexing techniques control network access in a packet-switched net-
work. The advantage of this technique is that it provides more flexibility and more efficient use of bandwidth.
Frame Relay configuration task list
Perform the tasks in the following sections to configure Frame Real on various ports:
•
Configuring Frame Relay encapsulation
•
Configuring the LMI type
•
Configuring the keep-alive interval
•
Enabling fragmentation
•
Entering Frame Relay PVC configuration mode
•
Configuring the PVC encapsulation type
•
Binding the Frame Relay PVC to IP interface
•
Disabling a Frame Relay PVC
•
Displaying Frame Relay information
Configuring Frame Relay encapsulation
Normally, Frame Relay is used over a HDLC framed link. Different kind of physical ports can be configured
for HDLC framed data transmission. On some ports the hdlc mode must be explicitly enabled (PRI, BRI),
other ports have a HDLC framed nature (Serial). That means, Frame Relay encapsulation can be configured in
different configuration modes. For this reason, the command description below refers to the configuration
mode in which Frame Relay can be enabled by setting the encapsulation to ‘framerelay’. This configuration
mode is called here ‘hdlc-sub’ but it is only an alias for the real mode. Once encapsulation framerelay has been
configured, the Frame Relay configuration mode can be entered.
for HDLC framed data transmission. On some ports the hdlc mode must be explicitly enabled (PRI, BRI),
other ports have a HDLC framed nature (Serial). That means, Frame Relay encapsulation can be configured in
different configuration modes. For this reason, the command description below refers to the configuration
mode in which Frame Relay can be enabled by setting the encapsulation to ‘framerelay’. This configuration
mode is called here ‘hdlc-sub’ but it is only an alias for the real mode. Once encapsulation framerelay has been
configured, the Frame Relay configuration mode can be entered.
Mode: hdlc-sub
Step
Command
Purpose
1
node(
hdlc-sub
)#[no] encapsulation framerelay
Enables/Disables Frame Relay
2
node(
hdlc-sub
)#framerelay
Enters the framerelay configuration mode