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Introduction 130
Models 2603, 2621, and 2635 Getting Started Guide E • Command Line Interface (CLI) Operation
Introduction
The modem configuration and status can also be view and modified through the console, which is accessible
through the RS-232 serial port or through a Telnet session over Ethernet.
CLI Terminology
In order to use the CLI commands, you need to understand the following CLI terms:
• Transport: A transport is a layer 2 session and everything below it. You can create a transport and attach it to
a bridge or router so that data can be bridged or routed via the attached transport. The CLI supports the
following transports:
• PPPoE: Point-to-Point Protocol over Ethernet
• Frame Relay
• PPP: Point-to-Point Protocol over HDLC
• Ethernet
• Interface: bridges and routers both have interfaces. A single transport is attached to a bridge or router via an
interface.
• Object: an object is anything that you can create and manipulate as a single entity, for example, interfaces,
transports, static routes and NAT rules.
• List: Objects are numbered entries in a list. For example, if you have created more than one ethernet trans-
port, the following command:
ethernet list transports
produces a list of numbered transport objects:
ID Name Port
1 eth2 ethernet
2 eth1 ethernet
Local (VT-100 emulation)
A connection is made with the DB9-RJ45 adapter and an RJ45-RJ45 straight-through cable. Set the data rate
to 9,600 baud, 8 data bits, one stop bits, and no parity. You may use a dumb terminal or a VT-100 emulation
such as HyperTerminal.
Remote (Telnet)
Establishing a Telnet session displays the same CLI configuration and status parameters on the display.
Using the Console
The console commands needed for the various modes of operation are described in later sections. In this sub-
section are the most basic commands needed for console operation.
By entering “?” all the high level commands (the keywords) are seen.