Introduction
47
IPLink 2800 Series Getting Started Guide
4 • Serial port configuration
Introduction
This chapter provides an overview of the serial port and describes the tasks involved in its configuration
through the IPLink router, it includes the following sections:
•
Serial port configuration task list
•
Configuration tasks
•
Examples
The V.35 standard is recommended for speeds up to 48 kbps, although in practice it is used successfully at 4
Mbps. The X.21 standard is recommended for data interfaces transmitting at rates up to 2 Mbps and is used
primarily in Europe and Japan.
The synchronous serial interface supports full-duplex operation and allows interconnection to various serial
network interface cards or equipment.
The IPLink device supports the Frame Relay protocol on the synchronous serial interface. 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 flex-
ible 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 network. The advan-
tage of this technique is that it provides more flexibility and more efficient use of bandwidth.
Serial port configuration task list
Perform the tasks in the following sections to configure a synchronous serial interface:
•
Disabling an interface (see page 47)
•
Enabling an interface (see page 48)
•
Configuring the serial encapsulation type (see page 49)
•
Entering Frame Relay mode (see page 50)
•
Configuring the LMI type (see page 50)
•
Configuring the keep-alive interval (see page 51)
•
Entering Frame Relay PVC configuration mode (see page 51)
•
Configuring the PVC encapsulation type (see page 52)
•
Binding the Frame Relay PVC to IP interface (see page 52)
•
Disabling a Frame Relay PVC (see page 54)
•
Displaying Frame Relay information (see page 56)
Disabling an interface
Before you replace a compact serial cable or attach your IPLink to other serial equipment, use the
shutdown
command to disable the serial interfaces. This prevents anomalies and hardware faults. When you shut down
an interface, it has the state CLOSED in the
show port serial
command display.
Summary of Contents for IPLink 2821
Page 4: ...Summary Table of Contents IPLink 2800 Series Getting Started Guide 4...
Page 18: ...About this guide IPLink 2800 Series Getting Started Guide 18...
Page 114: ...114 Chapter 9 LEDs status and monitoring Chapter contents Status LEDs 121...
Page 134: ...134 Appendix E IPLink 2800 Series factory configuration Chapter contents Introduction 142...
Page 136: ...136 Appendix F Installation checklist Chapter contents Introduction 144...