3-9
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-03
Chapter 3
Configuring with the Command-Line Interface
Configuring 16-Port and 32-Port Asynchronous Network Modules
Configuring 16-Port and 32-Port Asynchronous Network
Modules
You can configure the asynchronous interface manually by entering Cisco IOS commands on the
command line. This method, called configuration mode, provides the greatest power and flexibility.
Timesaver
Before you begin, disconnect all WAN cables from the router to keep it from trying to run the
AutoInstall process. The router tries to run AutoInstall whenever you power it ON, if there is a WAN
connection on both ends and the router does not have a valid configuration file stored in nonvolatile
random-access 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 interface, make sure you:
•
Connect a console to the router.
•
Power on the router.
Table 3-4
Clock Rate Settings for 2-Port Asynchronous/Synchronous Serial WAN Interface Card
Timer (bits per
second)
Syntax (bits per
second)
Default Setting (bits
per second)
1200 28800
72000
2400 32000
115200
4800 38400
125000
9600 56000
128000
14400 57600
19200 64000
Table 3-5
Clock Rate Settings for 4-Port/8-Port Asynchronous/Synchronous Serial Network Module
Timer (bits per
second)
Syntax (bits per
second)
Default Setting (bits
per second)
300 19200
64000
1200
28800
72000
2400 32000
115200
4800 38400
128000
9600 56000
14400 57600