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Chapter 2
Cisco CMTS Configuration Commands
timestamp
To create a DOCSIS configuration file that enables timestamp generation, use the timestamp command
in cable config-file configuration mode. To disable this function, use the no form of this command.
Syntax Description
This command has no arguments or keywords.
Defaults
No default behaviors or values
Command Modes
Cable config-file configuration
Command History
Release
12.1(2)EC1
12.2(4)BC1
Usage Guidelines
The DOCSIS specification supports the optional time-stamping of DOCSIS configuration files by
adding a field to the file that shows the time that the file was sent to the CM. This prevents someone from
trying to subvert DOCSIS security by replaying a valid DOCSIS configuration file to another CM. The
timestamp is expressed as the number of seconds since midnight on January 1, 1900.
Examples
The following example shows how to enable timestamp generation for the DOCSIS configuration file.
router(config)# cable config-file upgrade.cm
router(config-file)# timestamp
router(config-file)# exit
router(config)#
Related Commands
Command
cable config-file
access-denied
channel-id
cpe max
download
frequency
option
OL-1581-08
timestamp
no timestamp
Modification
This command was introduced.
Support was added to the Release 12.2 BC train.
Description
Creates a DOCSIS configuration file and enters configuration file
mode.
Disables access to the network.
Specifies upstream channel ID.
Specifies CPE information.
Specifies download information for the configuration file.
Specifies downstream frequency.
Provides config-file options.
Cisco Broadband Cable Command Reference Guide
timestamp
2-481
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