Cisco SR2016T-NA Reference Manual page 495

Chapter 2 Cisco CMTS Configuration Commands
upstream freq-range
To configure the Cisco CMTS router for the range of frequencies that are acceptable on upstreams, use
the upstream freq-range command in global configuration mode. To restore the default value of North
American ranges, use the no form of this command.
Syntax Description european
japanese
north american
Defaults
North American (DOCSIS, 5 MHz to 42 MHz)
Command Modes Global configuration
Command History Release
12.2(15)BC2
Usage Guidelines In Cisco IOS Release 12.2(15)BC2 and later, the Cisco CMTS router supports three different modes of
operation, depending on the cable interface line cards being used. The range of frequencies that are
allowed in each mode are as follows:
•
•
•
To configure the router so that it supports the proper range of upstream frequencies, use the upstream
freq-range command. After you have configured the router with the upstream freq-range command,
the cable upstream frequency
This command configures only the range of frequencies that can be configured on an upstream. It does
Note
not configure the upstreams for the DOCSIS (Annex B) or EuroDOCSIS (Annex A) modes of operation,
which is done using the
The allowable range for the upstream channel frequency depends on the cable interface line card and
Cisco IOS software release being used. See
OL-1581-08
upstream freq-range [european | japanese | north american]
no upstream freq-range
Configures the Cisco CMTS router to accept upstream frequency ranges
that conform with the EuroDOCSIS specifications (5 MHz to 65 MHz).
Configures the Cisco CMTS router to accept upstream frequency ranges
that conform to the expanded range used in Japan (5 MHz to 55 MHz).
Configures the Cisco CMTS router to accept upstream frequency ranges
that conform to the DOCSIS specifications (5 MHz to 42 MHz).
Modification
This command was introduced for the Cisco uBR7246VXR and
Cisco uBR10012 universal broadband routers.
North American DOCSIS (Annex B)—Upstreams use frequencies between 5 MHz and 42 MHz.
European EuroDOCSIS (Annex A)—Upstreams use frequencies between 5 MHz and 65 MHz.
Japanese Expanded Range (Annex B)—Upstreams use frequencies between 5 MHz and 55 MHz.
cable downstream annex
command then accepts only frequencies that are in the configured range.
interface command. (Annex C mode is not supported.)
Table 2-11 on page 2-315
Cisco Broadband Cable Command Reference Guide
upstream freq-range
for the currently supported values.
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