- Cable Modem Upstream RF Adaptation
- Configuring Downstream Cable Interface Features on the Cisco CMTS Routers
- Configuring Upstream Cable Interface Features on the Cisco CMTS Routers
- Cable Modem Steering on the Cisco CMTS Routers
- DOCSIS 2.0 A-TDMA Modulation Profiles for the Cisco CMTS Routers
- DOCSIS 3.0 Downstream Bonding for Bronze Certification
- Downstream Channel ID Assignment on the Cisco CMTS Routers
- Downstream Resiliency Bonding Group
- IGMP-Triggered Dynamic Channel Change Load Balancing for DOCSIS 2.0 Cable Modems
- IGMP-Triggered VDOC Broadcast Support on the Cisco CMTS Routers
- Load Balancing, Dynamic Channel Change, and Dynamic Bonding Change on the Cisco CMTS Routers
- M-CMTS DEPI Control Plane
- Restricted/General Load Balancing and Narrowband Dynamic Bandwidth Sharing with Downstream Dynamic Load Balancing
- RSVP-Based Video on Demand Support Over DOCSIS
- S-CDMA and Logical Channel Support on the Cisco CMTS Routers
- Spectrum Management and Advanced Spectrum Management for the Cisco CMTS
- Support for Extended Upstream Frequency Ranges
- Upstream Bonding Support for D-PON on the Cisco CMTS Routers
- Upstream Channel Bonding
- Upstream Scheduler Mode for the Cisco CMTS Routers
- Upstream Utilization Optimization on the Cisco CMTS Routers
- Wideband Modem Resiliency
- Downgrading Channel Bonding in Battery Backup Mode
- Index
Support for Extended Upstream Frequency Ranges
First Published: February 14, 2008
Cisco IOS Release 12.2(15)BC2 adds support for the extended upstream frequency range that is used in cable networks in Japan and other areas. This feature also clarifies the configuration of DOCSIS and EuroDOCSIS networks, so that the router shows only those upstream and downstream frequencies that are valid for each mode of operation.
![]() Note | Cisco IOS Release 12.2(33)SCA integrates support for this feature on the Cisco CMTS routers. This feature is also supported in Cisco IOS Release 12.3BC, and this document contains information that references many legacy documents related to Cisco IOS 12.3BC. In general, any references to Cisco IOS Release 12.3BC also apply to Cisco IOS Release 12.2SC. |
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://tools.cisco.com/ITDIT/CFN/. An account on http://www.cisco.com/ is not required.
Contents
- Prerequisites for Extended Upstream Frequency Ranges
- Restrictions for Extended Upstream Frequency Ranges
- Information About Extended Upstream Frequency Ranges
- How to Configure the Upstream Frequency Range
- Configuration Examples for Extended Upstream Frequency Ranges
- Additional References
Prerequisites for Extended Upstream Frequency Ranges
- The Cisco CMTS router must be running Cisco IOS Release 12.2(15)BC2 or later releases.
- The North American upstream frequency range (DOCSIS, 5 MHz to 42 MHz) is supported on all Cisco CMTS routers and all cable interfaces.
- The European upstream
frequency range (EuroDOCSIS, 5 MHz to 65 MHz) is supported on the following
platforms and cable interfaces:
- Cisco uBR7111E and Cisco uBR7114E routers
- Cisco uBR7246VXR router with the Cisco uBR-MC16E, Cisco uBR-MC16U/X, or Cisco uBR-MC28U/X cable interface line cards.
- Cisco uBR10012 router with the Cisco uBR-LCP2-MC16E or Cisco uBR-MC5X20U cable interface line cards.
- The Japanese extended upstream frequency range (5 MHz to 55 MHz) is
supported on the following platforms and cable interfaces:
- Cisco uBR7111E and Cisco uBR7114E routers
- Cisco uBR7246VXR router with the Cisco uBR-MC16E, Cisco uBR-MC16U/X, or Cisco uBR-MC28U/X cable interface line cards.
- Cisco uBR10012 router with the Cisco uBR-LCP2-MC16E or Cisco uBR-MC5X20U cable interface line cards.
- The cable physical plant must be configured with upconverters, filters, and other equipment that supports the desired frequency range and DOCSIS modes of operation.
Restrictions for Extended Upstream Frequency Ranges
- The RF modulation format should be configured for ITU J.112 Annex A for EuroDOCSIS operations, and for ITU J.83 Annex B for DOCSIS and Japanese operations. While it is possible to configure the modulation format differently, we do not recommend this because it violates the DOCSIS and EuroDOCSIS specifications.
- The ITU J.83 Annex C specification is not supported.
- You cannot configure the router for a particular frequency range if an upstream or spectrum group on the router is currently configured for a frequency that is invalid for the new range. If you try to do so, the command is ignored and a warning message is printed prompting you to reconfigure the upstream or spectrum group before retrying the command.
Information About Extended Upstream Frequency Ranges
The original Data-over-Cable Service Interface Specifications (DOCSIS) specified a range of downstream and upstream frequencies that were compatible only with the North American National Television Systems Committee (NTSC) channel plans.Those specifications have been enhanced to provide support for other cable systems.
- Frequency Ranges Currently in Use
- Extended Frequency Support for Downstreams
- Extended Frequency Support for Upstreams
Frequency Ranges Currently in Use
The table below lists the specifications that are commonly used in cable plants at the current time:
Region |
Channel Plan |
Radio Frequency (RF)1 Modulation Format |
Downstream Frequency Range |
Upstream Frequency Range |
---|---|---|---|---|
North American (DOCSIS) |
6 MHz NTSC2 |
ITU J.83 Annex B |
85 MHz to 860 MHz |
5 MHz to 42 MHz |
European (EuroDOCSIS) |
ITU J.112 Annex A |
85 MHz to 860 MHz |
5 MHz to 65 MHz |
|
Japan5 |
6 MHz NTSC |
ITU J.83 Annex B |
70 MHz to 860 MHz |
5 MHz to 55 MHz |
Extended Frequency Support for Downstreams
All current Cisco cable interface line cards support downstream frequencies between 54 MHz and 860 MHz, which is a superset of the DOCSIS and EuroDOCSIS downstream frequency range. This allows those cards to automatically support the extended downstream frequency range of Japanese networks, assuming that the appropriate upconverters, filters, and other supporting equipment is also installed in the cable plant.
Extended Frequency Support for Upstreams
To support the different upstream frequency ranges, Cisco IOS Release 12.2(15)BC2 introduces a new command, cable freq-range , which configures the Cisco CMTS router for the maximum allowable range of frequencies that can be used on the router. This command makes these frequencies available only for those cable interfaces that support them.
![]() Tip | The cable freq-range command is not normally needed except to enable EuroDOCSIS operations on the Cisco uBR-MC16U/X and Cisco uBR-MC28U/X cards. However, it can be used in other situations to ensure that the other cable upstream commands do not allow frequencies outside of the desired range. |
Support for the different frequency ranges depends on the cable interfaces being used:
- Cisco uBR-MC16E cable interface line card and the Cisco uBR7111E/7114E routers—Support the EuroDOCSIS frequency range, which is the default mode of operation.
- Cisco uBR-MC16U/X, Cisco uBR-MC28U/X, and Cisco uBR-MC5X20U cable interface line cards—Support the Japanese extended frequency range and the EuroDOCSIS frequency range, and the Japanese range is the default mode of operation.
- All other cable interfaces—Support the DOCSIS frequency range, which is the default mode of operation.
If a cable interface card does not support the frequency range that is configured with the cable freq-range command, a warning message is displayed. The card interface card, however, can continue to be used with its normal set of frequencies.
For example, consider the case where a Cisco uBR7246VXR router has a Cisco uBR-MC16C card and a Cisco uBR-MC28U card installed. By default, the Cisco uBR-MC16C card supports the DOCSIS frequency range, and the Cisco uBR-MC28U supports the Japanese frequency range. If you configure the router to support the EuroDOCSIS frequency range, only the Cisco uBR-MC28U card supports the extra downstream and upstream frequencies. The Cisco uBR-MC16C card, however, can continue to be used with the regular DOCSIS frequencies.
How to Configure the Upstream Frequency Range
To configure a Cisco CMTS router to use a particular range of upstream frequencies, use the following procedures:
![]() Note | You do not need any special configuration to be able to use the extended range of downstream frequencies that is used in Japanese networks, because all currently-supported Cisco cable interface line cards support a superset (54 MHz to 860 Mhz) of the DOCSIS frequencies that include the Japanese range. |
- Configuring DOCSIS Upstream Frequencies
- Configuring Extended DOCSIS Upstream Frequencies for Japan
- Configuring EuroDOCSIS Upstream Frequencies
Configuring DOCSIS Upstream Frequencies
To configure one or more upstreams with a frequency in the valid DOCSIS range of 5 MHz to 42 MHz, use the following procedure.
![]() Tip | This procedure typically is not needed, because by default all cable interfaces support the DOCSIS frequency range. However, you might want to use this procedure for the Cisco uBR-MC16U/X and Cisco uBR-MC28U/X cable interface line cards to specify that these cards use a narrower DOCSIS frequency filter that would filter out any noise in the frequencies above 42 MHz, which might improve RF performance on some cable plants. |
All Cisco CMTS platforms and cable interfaces support the North American range of upstream frequencies.
All cable interfaces in the router must be using the North American upstream frequency range.
Any upstreams that are currently configured for frequencies greater than 42 MHz must be reconfigured to use a lower frequency, using the cable upstream frequency interface command, before beginning this procedure.
Configuring Extended DOCSIS Upstream Frequencies for Japan
To configure one or more upstreams with a frequency in the extended Japanese frequency range of 5 MHz to 55 MHz, use the following procedure.
![]() Note | This procedure is not typically needed, because all of the cable interfaces listed in the Before You Begin section support the extended upstream frequency ranges in their default configuration. However, if you have configured a Cisco uBR-MC16U/X or Cisco uBR-MC28U/X card as described in the Configuring DOCSIS Upstream Frequencies, you must use this procedure to re-enable the extended frequency range. |
The Japanese upstream frequency range (5 MHz to 55 MHz) is supported on the following platforms and cable interfaces:
- Cisco uBR7111E and Cisco uBR7114E routers
- Cisco uBR7246VXR router with the Cisco uBR-MC16E, Cisco uBR-MC16U/X, or Cisco uBR-MC28U/X cable interface line cards.
- Cisco uBR10012 router with the Cisco uBR-LCP2-MC16E or Cisco uBR-MC5X20U cable interface line cards.
All cable interfaces in the router must be using either the North American or the Japanese upstream frequency range.
Any upstream that is currently configured for EuroDOCSIS, using frequencies greater than 55 MHz must be reconfigured for a lower frequency, using the cable upstream frequency interface command, before beginning this procedure.
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 | enable
Example: Router> enable |
Enables privileged EXEC mode. Enter your password if prompted. | ||
Step 2 | configure
terminal
Example: Router# configure terminal |
Enters global configuration mode. | ||
Step 3 | cable
freq-range
japanese
Example: Router(config)# cable freq-range japanese |
Configures the Cisco CMTS router for the extended upstream frequency range (5 MHz to 55 MHz) that is used in Japanese cable networks.
| ||
Step 4 | interface
cable {x/y | x/y/z }
Example: Router(config)# interface cable 3/0 |
Enters interface cable configuration mode for the specified cable interface. | ||
Step 5 | cable
downstream
annex
b
Example: Router(config-if)# cable downstream annex b |
Configures the downstream for the Annex B (ITU J.83) RF mode, which is used in DOCSIS networks. | ||
Step 6 | cable
upstream
n
frequency
frequency
Example: Router(config-if)# cable upstream 0 frequency 32000000 |
Configures the upstream for the desired frequency in Hertz. The valid range for n starts with 0 and depends on the number of upstream ports for this downstream. The valid range for frequency is 5000000 to 55000000.
| ||
Step 7 | exit
Example: Router(config-if)# exit |
Exits interface configuration mode. | ||
Step 8 | exit
Example: Router(config)# exit |
Exits global configuration mode. |
Configuring EuroDOCSIS Upstream Frequencies
To configure one or more upstreams with a frequency in the valid EuroDOCSIS range of 5 MHz to 65 MHz, use the following procedure.
![]() Tip | This command is not normally needed with the Cisco UBR-MC5X20U cable interface line card, because by default it supports upstream frequencies up to 65 MHz. However, if you have used one of the previous procedures, Configuring DOCSIS Upstream Frequencies or Configuring Extended DOCSIS Upstream Frequencies for Japan, to limit the frequency range, you must use this procedure to re-enable the EuroDOCSIS frequency range. |
The European upstream frequency range (EuroDOCSIS, 5 MHz to 65 MHz) is supported on the following platforms and cable interfaces:
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 | enable
Example: Router> enable |
Enables privileged EXEC mode. Enter your password if prompted. | ||
Step 2 | configure
terminal
Example: Router# configure terminal |
Enters global configuration mode. | ||
Step 3 | cable
freq-range
european
Example: Router(config)# cable freq-range european |
Configures the Cisco CMTS router for the EuroDOCSIS upstream frequency range (5 MHz to 65 MHz). | ||
Step 4 | interface
cable {x/y |
x/y/z }
Example: Router(config)# interface cable 3/0 |
Enters interface cable configuration mode for the specified cable interface. | ||
Step 5 | cable
downstream
annex
a
Example: Router(config-if)# cable downstream annex a |
Configures the downstream for the Annex A (ITU J.112) RF mode, which is used in EuroDOCSIS networks.
| ||
Step 6 | cable
upstream
n
frequency
frequency
Example: Router(config-if)# cable upstream 0 frequency 32000000 |
Configures the upstream for the desired frequency in Hertz. The valid range for n starts with 0 and depends on the number of upstream ports for this downstream. The valid range for frequency is 5000000 to 65000000.
| ||
Step 7 | exit
Example: Router(config-if)# exit |
Exits interface configuration mode. | ||
Step 8 | exit
Example: Router(config)# exit |
Exits global configuration mode. |
Configuration Examples for Extended Upstream Frequency Ranges
This section provides the following examples of sample configurations for the cable interface:
- Example: Configuring North American (DOCSIS) Frequency Range
- Example: Configuring Japanese Frequency Range
- Example: Configuring European (EuroDOCSIS) Frequency Range
Example: Configuring North American (DOCSIS) Frequency Range
The following excerpt from a configuration file for the Cisco uBR7246VXR router shows a Cisco uBR-MC28U card and a Cisco uBR-MC16U card being configured for the default DOCSIS upstream frequency range of 5 MHz to 42 MHz. This frequency spectrum is allocated across two spectrum groups. Also, each downstream is configured for the DOCSIS Annex B mode.
![]() Note | The cable freq-range north-american command is not needed for this configuration, but using the command filters out the upstream frequencies above 42 MHz, which could be useful if noise is occurring in those frequencies. |
... cable freq-range north-american cable spectrum-group 1 shared cable spectrum-group 1 band 5000000 23500000 cable spectrum-group 2 shared cable spectrum-group 2 band 23500000 42000000 ... ! interface Cable3/0 description Cisco uBR-MC28U cable interface DS0 ip address 10.2.4.1 255.255.255.0 secondary ip address 10.2.3.1 255.255.255.0 cable downstream annex B cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 195000000 cable downstream channel-id 0 cable upstream 0 frequency 29008000 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 1 no cable upstream 0 shutdown cable upstream 1 frequency 25808000 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 1 no cable upstream 1 shutdown cable upstream 2 frequency 9808000 cable upstream 2 power-level 0 cable upstream 2 channel-width 3200000 cable upstream 2 minislot-size 2 cable upstream 2 modulation-profile 1 no cable upstream 2 shutdown cable upstream 3 frequency 19408000 cable upstream 3 power-level 0 cable upstream 3 channel-width 3200000 cable upstream 3 minislot-size 2 cable upstream 3 modulation-profile 1 no cable upstream 3 shutdown cable dhcp-giaddr policy cable helper-address 10.2.0.2 ! interface Cable3/1 description Cisco uBR-MC28U cable interface DS1 ip address 10.2.5.1 255.255.255.0 secondary ip address 10.2.4.1 255.255.255.0 cable downstream annex B cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 789000000 cable downstream channel-id 1 cable upstream 0 spectrum-group 1 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 1 no cable upstream 0 shutdown cable upstream 1 spectrum-group 1 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 1 no cable upstream 1 shutdown cable upstream 2 spectrum-group 2 cable upstream 2 power-level 0 cable upstream 2 channel-width 3200000 cable upstream 2 minislot-size 2 cable upstream 2 modulation-profile 1 no cable upstream 2 shutdown cable upstream 3 spectrum-group 2 cable upstream 3 power-level 0 cable upstream 3 channel-width 1600000 cable upstream 3 minislot-size 4 cable upstream 3 modulation-profile 1 no cable upstream 3 shutdown cable dhcp-giaddr policy cable helper-address 10.2.0.2 ! interface Cable4/0 description Cisco uBR-MC16U cable interface ip address 10.2.0.1 255.255.255.0 secondary ip address 10.2.0.1 255.255.255.0 cable bundle 10 master cable downstream annex B cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 195000000 cable downstream channel-id 2 cable upstream 0 frequency 29008000 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 1 cable upstream 0 shutdown cable upstream 1 frequency 25808000 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 1 cable upstream 1 shutdown cable upstream 2 frequency 9808000 cable upstream 2 power-level 0 cable upstream 2 channel-width 3200000 cable upstream 2 minislot-size 2 cable upstream 2 modulation-profile 1 cable upstream 2 shutdown cable upstream 3 frequency 19408000 cable upstream 3 power-level 0 cable upstream 3 channel-width 3200000 cable upstream 3 minislot-size 2 cable upstream 3 modulation-profile 1 cable upstream 3 shutdown cable upstream 4 frequency 35408000 cable upstream 4 power-level 0 cable upstream 4 channel-width 3200000 cable upstream 4 minislot-size 2 cable upstream 4 modulation-profile 1 cable upstream 4 shutdown cable upstream 5 frequency 16208000 cable upstream 5 power-level 0 cable upstream 5 channel-width 3200000 cable upstream 5 minislot-size 2 cable upstream 5 modulation-profile 1 cable upstream 5 shutdown cable dhcp-giaddr policy cable helper-address 10.2.0.2 ! ...
Example: Configuring Japanese Frequency Range
The following excerpt from a configuration file for the Cisco uBR7246VXR router shows a Cisco uBR-MC28U card and two Cisco uBR-MC16U cards being configured for the Japanese extended upstream frequency range of 5 MHz to 55 MHz. This frequency spectrum is allocated across three spectrum groups. Also, each downstream is configured for the DOCSIS Annex B mode.
... cable freq-range japanese cable spectrum-group 1 shared cable spectrum-group 1 band 5000000 23500000 cable spectrum-group 2 shared cable spectrum-group 2 band 23500000 42000000 cable spectrum-group 3 shared cable spectrum-group 3 band 42000000 55000000 ... ! interface Cable3/0 description Cisco uBR-MC28U cable interface DS0 ip address 10.2.4.1 255.255.255.0 secondary ip address 10.2.3.1 255.255.255.0 cable downstream annex B cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 195000000 cable downstream channel-id 0 cable upstream 0 frequency 29008000 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 1 no cable upstream 0 shutdown cable upstream 1 frequency 25808000 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 1 no cable upstream 1 shutdown cable upstream 2 frequency 44808000 cable upstream 2 power-level 0 cable upstream 2 channel-width 3200000 cable upstream 2 minislot-size 2 cable upstream 2 modulation-profile 1 no cable upstream 2 shutdown cable upstream 3 frequency 19408000 cable upstream 3 power-level 0 cable upstream 3 channel-width 3200000 cable upstream 3 minislot-size 2 cable upstream 3 modulation-profile 1 no cable upstream 3 shutdown cable dhcp-giaddr policy cable helper-address 10.2.0.2 ! interface Cable3/1 description Cisco uBR-MC28U cable interface DS1 ip address 10.2.5.1 255.255.255.0 secondary ip address 10.2.4.1 255.255.255.0 cable downstream annex B cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 789000000 cable downstream channel-id 1 cable upstream 0 frequency 45408000 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 1 no cable upstream 0 shutdown cable upstream 1 frequency 16208000 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 1 no cable upstream 1 shutdown cable upstream 2 frequency 6608000 cable upstream 2 power-level 0 cable upstream 2 channel-width 3200000 cable upstream 2 minislot-size 2 cable upstream 2 modulation-profile 1 no cable upstream 2 shutdown cable upstream 3 frequency 41008000 cable upstream 3 power-level 0 cable upstream 3 channel-width 1600000 cable upstream 3 minislot-size 4 cable upstream 3 modulation-profile 1 no cable upstream 3 shutdown cable dhcp-giaddr policy cable helper-address 10.2.0.2 ! interface Cable4/0 description Cisco uBR-MC16U cable interface ip address 10.2.0.1 255.255.255.0 secondary ip address 10.2.0.1 255.255.255.0 cable bundle 10 master cable downstream annex B cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 195000000 cable downstream channel-id 2 cable upstream 0 frequency 29008000 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 1 cable upstream 0 shutdown cable upstream 1 frequency 25808000 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 1 cable upstream 1 shutdown cable upstream 2 frequency 9808000 cable upstream 2 power-level 0 cable upstream 2 channel-width 3200000 cable upstream 2 minislot-size 2 cable upstream 2 modulation-profile 1 cable upstream 2 shutdown cable upstream 3 frequency 19408000 cable upstream 3 power-level 0 cable upstream 3 channel-width 3200000 cable upstream 3 minislot-size 2 cable upstream 3 modulation-profile 1 cable upstream 3 shutdown cable upstream 4 frequency 35408000 cable upstream 4 power-level 0 cable upstream 4 channel-width 3200000 cable upstream 4 minislot-size 2 cable upstream 4 modulation-profile 1 cable upstream 4 shutdown cable upstream 5 frequency 16208000 cable upstream 5 power-level 0 cable upstream 5 channel-width 3200000 cable upstream 5 minislot-size 2 cable upstream 5 modulation-profile 1 cable upstream 5 shutdown cable dhcp-giaddr policy cable helper-address 10.2.0.2 ! interface Cable5/0 description Cisco uBR-MC16U cable interface no ip address load-interval 30 cable bundle 10 cable downstream annex B cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream frequency 453000000 cable downstream channel-id 4 no cable downstream rf-shutdown cable upstream 0 spectrum-group 3 cable upstream 0 ingress-noise-cancellation 200 cable upstream 0 power-level 0 cable upstream 0 channel-width 200000 200000 cable upstream 0 minislot-size 32 cable upstream 0 modulation-profile 41 no cable upstream 0 shutdown cable upstream 1 spectrum-group 1 cable upstream 1 ingress-noise-cancellation 200 cable upstream 1 power-level 0 cable upstream 1 channel-width 1600000 1600000 cable upstream 1 minislot-size 4 cable upstream 1 modulation-profile 42 no cable upstream 1 shutdown cable upstream 2 spectrum-group 3 cable upstream 2 ingress-noise-cancellation 200 cable upstream 2 power-level 0 cable upstream 2 channel-width 1600000 1600000 cable upstream 2 minislot-size 4 cable upstream 2 modulation-profile 42 no cable upstream 2 shutdown cable upstream 3 spectrum-group 3 cable upstream 3 ingress-noise-cancellation 200 cable upstream 3 power-level 0 cable upstream 3 channel-width 1600000 1600000 cable upstream 3 minislot-size 4 cable upstream 3 modulation-profile 42 no cable upstream 3 shutdown cable upstream 4 spectrum-group 3 cable upstream 4 ingress-noise-cancellation 200 cable upstream 4 power-level 0 cable upstream 4 channel-width 1600000 1600000 cable upstream 4 minislot-size 4 cable upstream 4 modulation-profile 42 no cable upstream 4 shutdown cable upstream 5 spectrum-group 3 cable upstream 5 ingress-noise-cancellation 200 cable upstream 5 power-level 0 cable upstream 5 channel-width 1600000 1600000 cable upstream 5 minislot-size 4 cable upstream 5 modulation-profile 42 no cable upstream 5 shutdown cable dhcp-giaddr policy cable helper-address 10.2.0.2 ! ...
Example: Configuring European (EuroDOCSIS) Frequency Range
The following excerpt from a configuration file for the Cisco uBR10012 router shows a Cisco uBRMC5X20U card being configured for the EuroDOCSIS frequency range of 5 MHz to 65 MHz. This frequency spectrum is allocated across a number of spectrum groups. Also, each downstream is configured for the EuroDOCSIS Annex A mode.
... card 5/0 5cable-mc520u-d ... cable freq-range european cable spectrum-group 1 shared cable spectrum-group 1 band 5000000 42000000 cable spectrum-group 2 shared cable spectrum-group 2 band 5000000 30000000 cable spectrum-group 3 shared cable spectrum-group 3 band 30000000 42000000 cable spectrum-group 4 band 5000000 10000000 cable spectrum-group 5 band 10000000 15000000 cable spectrum-group 6 band 15000000 20000000 cable spectrum-group 7 band 20000000 25000000 cable spectrum-group 8 band 25000000 30000000 cable spectrum-group 9 band 30000000 35000000 cable spectrum-group 10 band 35000000 42000000 cable spectrum-group 12 band 42000000 50000000 cable spectrum-group 13 band 5000000 55000000 cable spectrum-group 14 band 55000000 65000000 ! interface Cable5/0/0 no ip address cable enable-trap cmonoff-notification cable bundle 1 master cable downstream annex A cable downstream modulation 256qam cable downstream interleave-depth 64 cable downstream frequency 471000000 cable downstream channel-id 0 no cable downstream rf-shutdown cable upstream 0 spectrum-group 6 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 21 22 no cable upstream 0 shutdown cable upstream 1 spectrum-group 7 cable upstream 1 power-level 0 cable upstream 1 channel-width 1600000 cable upstream 1 minislot-size 4 cable upstream 1 modulation-profile 121 122 no cable upstream 1 shutdown cable upstream 2 spectrum-group 8 cable upstream 2 power-level 0 cable upstream 2 channel-width 800000 cable upstream 2 minislot-size 8 cable upstream 2 modulation-profile 123 124 no cable upstream 2 shutdown cable upstream 3 spectrum-group 14 cable upstream 3 power-level 0 cable upstream 3 channel-width 400000 cable upstream 3 minislot-size 16 cable upstream 3 modulation-profile 22 23 no cable upstream 3 shutdown ! interface Cable5/0/1 no ip address load-interval 30 cable bundle 1 cable downstream annex A cable downstream modulation 256qam cable downstream interleave-depth 32 cable downstream frequency 471000000 cable downstream channel-id 0 no cable downstream rf-shutdown cable upstream 0 spectrum-group 10 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 122 123 no cable upstream 0 shutdown cable upstream 1 spectrum-group 2 cable upstream 1 power-level 0 cable upstream 1 channel-width 1600000 cable upstream 1 minislot-size 4 cable upstream 1 modulation-profile 124 125 no cable upstream 1 shutdown cable upstream 2 spectrum-group 3 cable upstream 2 power-level 0 cable upstream 2 channel-width 400000 cable upstream 2 minislot-size 16 cable upstream 2 modulation-profile 126 127 no cable upstream 2 shutdown cable upstream 3 spectrum-group 1 cable upstream 3 power-level 0 cable upstream 3 channel-width 200000 cable upstream 3 minislot-size 32 cable upstream 3 modulation-profile 125 128 no cable upstream 3 shutdown ! interface Cable5/0/2 no ip address load-interval 30 cable bundle 2 cable downstream annex A cable downstream modulation 256qam cable downstream interleave-depth 16 cable downstream frequency 453000000 cable downstream channel-id 0 no cable downstream rf-shutdown cable upstream 0 spectrum-group 1 cable upstream 0 power-level 0 cable upstream 0 channel-width 1600000 cable upstream 0 minislot-size 4 cable upstream 0 modulation-profile 21 22 no cable upstream 0 shutdown cable upstream 1 spectrum-group 2 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 122 129 no cable upstream 1 shutdown cable upstream 2 spectrum-group 3 cable upstream 2 power-level 0 cable upstream 2 channel-width 800000 cable upstream 2 minislot-size 8 cable upstream 2 modulation-profile 123 126 no cable upstream 2 shutdown cable upstream 3 spectrum-group 1 cable upstream 3 power-level 0 cable upstream 3 channel-width 3200000 cable upstream 3 minislot-size 2 cable upstream 3 modulation-profile 22 23 no cable upstream 3 shutdown ! interface Cable5/0/3 no ip address cable bundle 3 cable downstream annex A cable downstream modulation 256qam cable downstream interleave-depth 16 cable downstream frequency 471000000 cable downstream channel-id 0 no cable downstream rf-shutdown cable upstream 0 spectrum-group 6 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 21 22 no cable upstream 0 shutdown cable upstream 1 spectrum-group 6 cable upstream 1 power-level 0 cable upstream 1 channel-width 1600000 cable upstream 1 minislot-size 4 cable upstream 1 modulation-profile 121 122 no cable upstream 1 shutdown cable upstream 2 spectrum-group 7 cable upstream 2 power-level 0 cable upstream 2 channel-width 800000 cable upstream 2 minislot-size 8 cable upstream 2 modulation-profile 123 124 no cable upstream 2 shutdown cable upstream 3 spectrum-group 7 cable upstream 3 power-level 0 cable upstream 3 channel-width 400000 cable upstream 3 minislot-size 16 cable upstream 3 modulation-profile 22 23 no cable upstream 3 shutdown ! interface Cable5/0/4 no ip address cable bundle 4 cable downstream annex A cable downstream modulation 256qam cable downstream interleave-depth 32 cable downstream frequency 471000000 cable downstream channel-id 0 no cable downstream rf-shutdown cable upstream 0 spectrum-group 10 cable upstream 0 power-level 0 cable upstream 0 channel-width 3200000 cable upstream 0 minislot-size 2 cable upstream 0 modulation-profile 22 24 no cable upstream 0 shutdown cable upstream 1 spectrum-group 10 cable upstream 1 power-level 0 cable upstream 1 channel-width 3200000 cable upstream 1 minislot-size 2 cable upstream 1 modulation-profile 122 129 no cable upstream 1 shutdown cable upstream 2 spectrum-group 15 cable upstream 2 power-level 0 cable upstream 2 channel-width 3200000 cable upstream 2 minislot-size 2 cable upstream 2 modulation-profile 125 124 no cable upstream 2 shutdown cable upstream 3 spectrum-group 15 cable upstream 3 power-level 0 cable upstream 3 channel-width 3200000 cable upstream 3 minislot-size 2 cable upstream 3 modulation-profile 22 23 no cable upstream 3 shutdown no keepalive !
Additional References
The following sections provide references related to the Extended Upstream Frequency Ranges.
Related Documents
Related Topic |
Document Title |
---|---|
CMTS Command Reference |
Cisco Broadband Cable Command Reference Guide, at the following URL: http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html |
Software Configuration Information |
Cisco uBR7100 Series Software Configuration Guide, at the following URL: http://www.cisco.com/en/US/docs/cable/cmts/ubr7100/configuration/guide/scg7100.htmlCisco uBR7200 Series Software Configuration Guide, at the following URL: http://www.cisco.com/en/US/docs/cable/cmts/ubr7200/configuration/guide/cr72scg.html Cisco uBR10012 Universal Broadband Router Software Configuration Guide, at the following URL: http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/configuration/guide/scg.html |
Cable Features Configuration Guide |
Cisco CMTS Feature Guide, at the following URL: http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/cmtsfg.html |
Cisco IOS Release 12.2 Command Reference |
Cisco IOS Release 12.2 Configuration Guides and Command References, at the following URL: |
Standards and RFCs
Standards |
Title |
---|---|
Data-over-Cable Service Interface Specifications Radio Frequency Interface Specification, version 1.1 |
|
Data-Over-Cable Service Interface Specifications Radio Frequency Interface Specification, version 2.0 |
MIBs
MIBs |
MIBs Link |
---|---|
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: |
Technical Assistance
Description |
Link |
---|---|
Technical Assistance Center (TAC) home page, containing 30,000 pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content. |