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option
option
To create a DOCSIS configuration file that specifies vendor-specific information fields, or other options
that are not available through the other cable config-file commands, use the option command in cable
config-file configuration mode. To remove the entry for this option, use the no form of this command.
Syntax Description
n
instance inst-num
ascii string
hex hexstring
ip ip-address
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 provides for a great many options and parameters in the DOCSIS
configuration files. In particular, it allows unspecified vendor-specific options that can vary from vendor
to vendor and from model to model. To create a DOCSIS configuration file that references these options,
use the option command.
The option command allows you to specify configuration file parameters that are not defined by the
other cable config-file options. These options are defined in the DOCSIS Radio Frequency (RF)
Interface Specification. However, certain options are not allowed because they are either reserved for
DOCSIS use or because they are specified using other cable config-file commands.
Cisco Broadband Cable Command Reference Guide
2-448
option n [instance inst-num] {ascii string | hex hexstring | ip ip-address}
no option n
Specifies the configuration file option code. Valid range is 5 to 254.
Note
(Optional) Specifies the instance of this option, so that you can give the same
option multiple times. Valid range is 0 to 255.
Specifies that the data is a network verification tool (NVT) ASCII string. If
the string contains white space, you must surround it with quotation marks.
Specifies the data as a raw hexadecimal string. Each byte in the hexadecimal
string is two hexadecimal digits—each byte can be separated by a period,
colon, or white space. A maximum of 254 bytes can be specified.
Note
Specifies an IP address.
Modification
This command was introduced.
Support was added to the Release 12.2 BC train.
Certain values between 5 and 254 are not allowed. See
more information.
The hex option must be used to specify the data in the DOCSIS
Type/Length/Value (TLV) format when using the vendor-specific
option (option 43).
Chapter 2
Cisco CMTS Configuration Commands
Table 2-19
for
OL-1581-08
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