Cisco 2620 User Manual

3-6
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-04
Chapter3 Configuring with the Command-Line Interface
Configuring Asynchronous/Synchronous Serial Network Modules or WAN Interface Cards
memory (NVRAM) (for instance, when you add a new interface). It can take several minutes for the
router to determine that AutoInstall is not connected to a remote Transmission Control Protocol/Internet
Protocol (TCP/IP) host.
Before you begin configuring the asynchronous/synchronous serial interface, make sure you:
• Connect a console to the router.
• Power on the router.
Command Purpose
Step1
Router> enable
Password: password
Router#
Enter enable mode. Enter the password.
You have entered enable mode when the prompt
changes to Router#.
Step2
Router# configure terminal
Enter configuration commands, one per line.
End with CNTL/Z.
Router(config)#
Enter global configuration mode. You have
entered global configuration mode when the
prompt changes to Router(config)#.
Step3
Router# ip routing
Router# appletalk routing
Router# ipx routing
Enable routing protocols as required for your
global configuration. This example uses IP
routing, AppleTalk routing, and Internetwork
Packet Exchange (IPX) routing.
Step4
Router(config)# interface serial 0/0
Router(config-if)#
Enter the interface configuration mode. You have
entered interface configuration mode when the
prompt changes to Router(config-if)#.
Step5
Router(config-if)# ip address 172.16.74.1
255.255.255.0
Assign the IP address and subnet mask to the
interface.
Step6
Router(config-if)# appletalk static
cable-range 5-5
Router(config-if)# appletalk zone ZZSerial
Router(config-if)# ipx network B003
Configure routing protocols on the interface. You
must have previously enabled these protocols as
part of global configuration. In this example,
AppleTalk and IPX are being configured on the
interface.
Step7
Router(config-if)# physical-layer async
All serial ports are initially configured as
synchronous. Enter this command if you want to
configure the port as asynchronous.
Step8
Router(config-if)# async mode dedicated
Router(config-if)# async default routing
Configure asynchronous parameters according to
your needs.
Step9
Router(config-if)# line async <#>
Configure the asynchronous line setting.
Step10
Router(config-if)# half-duplex timer
dcd-drop-delay 100
Specify the time that the interface waits in
controlled carrier mode. See Table3-1 for a list of
half-duplex timer commands.
Step11
Router(config-if)# clockrate 7200
To use a port in DCE mode, connect a DCE cable
and set the internal transmit clock signal (TXC)
speed in bits per second. See Table3-2 through
Table3-5 for a list of clock rate settings for your
specific interface. (For ports used in DTE mode,
the router automatically uses the external timing
signal.)

Cisco 2620 Specifications

General

Brand	Cisco
Model	2620
Category	Network Router
Language	English