Configure DCE Clock Rate Cisco

Hello sir, I am JAsvinder Bahadur. I am from Chandigarh. I want you to help me by providing me some information about the steps to configure DCE clock rate in Cisco IOS interface. Can you help me?

[Kiran Chandar]

As you have asked about the configuration of DCE clock rate in Cisco IOS interface, I am giving you some information about it
To configure the clock rate for the hardware connections on serial interfaces such as network interface modules (NIMs) and interface processors to an acceptable bit rate, use the clockrate command in interface configuration mode.
To remove the clock rate if you change the interface from a DCE to a DTE device, use the no form of this command.

clock rate bps
no clock rate

Syntax Description
bps


Desired clock rate, in bits per second: 1200, 2400, 4800, 9600, 19200, 38400, 56000, 64000, 72000, 125000, 148000, 250000, 500000, 800000, 1000000, 1300000, 2000000, 4000000, or 8000000

For the synchronous serial port adapters (PA-8T-V35, PA-8T-X21, PA-8T-232, and PA-4T+), a nonstandard clock rate can be used. You can enter any value from 300 to 8000000 bps. The clock rate you enter is rounded (adjusted), if necessary, to the nearest value that your hardware can support except for the following standard rates: 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 56000, 64000, 128000, or 2015232.
Command Default

No clock rate is configured.
Command Modes

Interface configuration

Usage Guidelines

Cable Length

Be aware that the fastest speeds might not work if your cable is too long, and that speeds faster than 148,000 bits per second are too fast for EIA/TIA-232 signaling. It is recommended that you only use the synchronous serial EIA/TIA-232 signal at speeds up to 64,000 bits per second. To permit a faster speed, use EIA/TIA-449 or V.35.

Synchronous Serial Port Adapters

For the synchronous serial port adapters (PA-8T-V35, PA-8T-X21, PA-8T-232, and PA-4T+) on Cisco 7200 series routers, and on second-generation Versatile Interface Processors (VIP2s) in Cisco 7500 series routers, the clock rate you enter is rounded (if needed) to the nearest value that your hardware can support. To display the clock rate value for the port adapter, use the showrunning-configcommand.

If you plan to netboot your router over a synchronous serial port adapter interface and have a boot image prior to Cisco IOS Release 11.1(9)CA that does not support nonstandard (rounded) clock rates for the port adapters, you must use one of the following standard clock rates:

1200
2400
4800
9600
19200
38400
56000
64000

Examples

The following example shows how to set the clock rate on the first serial interface to 64,000 bps:

Router(config)# interface serial 0
Router(config-if)# clock rate 64000