The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
This document contains information about downloading and installing Cisco IOS Release 12.2(33)SCC. It also provides new and changed information, hardware support, limitations and restrictions, and caveats for Cisco IOS Release 12.2(33)SCC.
For software caveats that apply to the Cisco IOS Release 12.2(33)SCC on the Cisco uBR7200 series routers, see the corresponding release notes for Cisco uBR7200 Series Routers.
We recommend that you view the field notices for this release to see if your software or hardware platforms are affected. If you have an account on Cisco.com, you can find field notices at http://www.cisco.com/en/US/customer/support/tsd_products_field_notice_summary.html .
If you do not have a Cisco.com login account, you can find field notices at http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html .
These sections describe the system requirements for Cisco IOS Release 12.2(33)SCC:
This section describes the memory requirements for Cisco IOS Release 12.2(33)SCC.
Note Effective with Cisco IOS Release 12.2(33)SCC, the image size is greater than 65 MB and requires TFTP servers capable of downloading large images.
Table 1-1 displays the memory recommendations for the Cisco uBR10012 universal broadband router with Cisco IOS Release 12.2(33)SCC feature sets.
DOCSIS Base 3 DES image and Lawful Intercept for Cisco PRE22 |
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The following sections list the hardware supported on various Cisco IOS Releases:
Table 1-1 provides information about the cable interface line cards supported in Cisco IOS Release 12.2(33)SCC.
Note Cisco uBR10-MC5X20S cable interface line cards are no longer supported from Cisco IOS Release 12.2(33)SCC onwards.
The Cisco uBR10012 series universal broadband routers support online insertion and removal (OIR) of cable interface line cards only when exchanging cable interface line cards of the same type.
Effective with Cisco IOS Release 12.2(33)SCC, OIR compatibility between the Cisco uBR10-MC5X20 and the Cisco UBR-MC20X20V line cards is supported. The OIR compatibility procedure translates the configuration from one format to another during the OIR process.
Note Cisco uBR10-MC5X20S cable interface line cards are no longer supported from Cisco IOS Release 12.2(33)SCC onwards. However these cards can be upgraded to Cisco uBR10-MC5X20U/H or Cisco UBR-MC20X20V line cards by the OIR process.
Prerequisites for Performing OIR
Restrictions During OIR Process
Step 1 In global configuration mode, enter the cr10k card oir-compatibility command for the cable interface line card to perform an OIR, as shown in the following example:
This command helps preserve the configuration and performs some internal synchronization to make sure that the OIR runs successfully.
Note Effective with Cisco IOS Release 12.2(33)SCC, OIR compatibility is automatically ON for all slots of the line cards.
Step 2 Save the configuration to ensure the transition, as shown in the following example:
Step 3 Turn the power off to the line card using the cable power off command for the slot that is being replaced, as shown in the following example:
This powers off the line card gracefully.
Step 4 Before removing the card, verify that the proper grounding instructions have been followed for the card.
For more information about preventing electrostatic discharge (ESD) damage, see:
http://www.cisco.com/warp/public/109/cable-linecard-handling.pdf
Step 6 Replace it with the new line card in the slot.
Step 7 Enter the cable power on command to power up the line card, as shown in the following example:
Step 8 Enter the show interface cable command and verify that the card and line protocol is “up” as shown in the following example:
Step 9 Enter the show controllers cable command and verify the hardware status, as shown in the following example:
Note To verify the hardware status of the Cisco UBRMC20X20V cable line cards, it is recommended that you run the show controller integrated-cable 8/0/0 brief command instead of the show controllers cable command.
Step 10 Verify the configuration with the show running-configuration command.
The Cisco uBR10012 universal broadband router supports up to four network line cards with any combination of the following cards:
Note Cisco HHGE line card is supported only with PRE2.
Table 1-2 provides information about other hardware supported in Cisco IOS Release 12.2(33)SCC.
To determine the version of the Cisco IOS software running on your Cisco universal broadband router, log in to the router and enter the show version EXEC command:
For information about selecting a new Cisco IOS software release, see "How to Choose a Cisco IOS Software Release" at the following location:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1834/
products_tech_note09186a00800fb9d9.shtml
For information about upgrading the Cisco universal broadband routers, see the Software Installation and Upgrade Procedures document at the following location:
http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a0080094c07.shtml
For Cisco IOS upgrade ordering instructions, see:
http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/957_pp.htm
To choose a new Cisco IOS software release based on information about defects that affect that software, use Bug Search Tool (BST) at the following URL:
This section describes microcode software that is supported for the Cisco uBR10012 router.
The field-programmable device (FPD) image packages are used to update the shared port adapter (SPA) FPD images. If a discrepancy exists between a SPA FPD image and the Cisco IOS image that is running on the router, the SPA is deactivated until this discrepancy is resolved.
Note The maximum time to upgrade the FPD image on one SPA is 2 minutes. The total FPD upgrade time depends on the number of SPAs.
Note The FPD image package that is used to upgrade SPAs on a router that runs Cisco IOS Release 12.2(33)SCC is the ubr10k-fpd-pkg.122-33.SCC pkg file.
A cold start of the router is required for an upgrade to a PRE4 from a PRE2 on a Cisco uBR10012 universal broadband router from a different release train, such as Cisco IOS Release 12.3(23)BC or other BC releases.
For more information, see Cisco uBR10012 Universal Broadband Router Performance Routing Engine Module at:
http://www.cisco.com/en/US/docs/interfaces_modules/cable/performance_routing_engine/installation/guide/pre5096.html
For more information, see the Cisco uBR10012 Router Release Notes for Cisco IOS Release 12.2(33)SCA at the following URL:
http://www.cisco.com/en/US/products/hw/cable/ps2209/prod_release_notes_list.html
Cisco IOS software is packaged in feature sets that consist of software images that support specific platforms. The feature sets available for a specific platform depend on which Cisco IOS software images are included in a release. Each feature set contains a specific set of Cisco IOS features.
Table 1-4 provides information about the important user guides in Cisco IOS Release 12.2SC.
Table 1-4 Important Guides in Cisco IOS Release 12.2SC
Describes a set of Cisco CMTS documents and contains links to the referenced documents. Go to the following link to access this document: http://www.cisco.com/c/en/us/td/docs/cable/cmts/ubr10012/roadmap/u10krdmp.html |
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Provides information about the software commands used to configure a Cisco CMTS. Includes command syntax, default value, value range, command mode, usage guidelines, and examples. Go to the following link to access this document: http://www.cisco.com/c/en/us/td/docs/cable/cmts/cmd_ref/b_cmts_cable_cmd_ref.html |
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Describes how to plan, install, and configure a Cisco CMTS. Contains information about the supported technologies, interfaces and protocols and can also contain special installation considerations, network diagrams, example applications, system design, and environmental recommendations. Go to the following link to access this document set: http://www.cisco.com/c/en/us/support/video/ubr10000-series-universal-broadband-routers/products-implementation-design-guides-list.html |
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Provides step-by-step instructions for installing or upgrading a Cisco CMTS. Also includes line card installation guides, shipping documents, safety information, and quick-start guides for experienced users. Go to the following link to access this document set: http://www.cisco.com/c/en/us/support/video/ubr10000-series-universal-broadband-routers/products-installation-guides-list.html |
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Contains detailed, step-by-step instructions for configuring a Cisco CMTS, including software feature guides, configuration examples, network diagrams, and technical concepts. Go to the following link to access this document set: http://www.cisco.com/c/en/us/support/video/ubr10000-series-universal-broadband-routers/products-installation-and-configuration-guides-list.html |
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Lists error and system messages for a Cisco CMTS, including any recommended user action for each message. Go to the following link to access this document: http://www.cisco.com/c/en/us/support/video/ubr10000-series-universal-broadband-routers/products-system-message-guides-list.html |
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Provides problem-solving techniques for a Cisco CMTS, including methods to identify problems based on symptoms and recommended actions for resolution. Go to the following link to access this document set: http://www.cisco.com/c/en/us/support/video/ubr10000-series-universal-broadband-routers/products-troubleshooting-guides-list.html |
The Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or by feature set (software image). Under the release section, you can compare Cisco IOS software releases side-by-side to display both the features unique to each software release and the features that the releases have in common.
To access the Cisco Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check verifies that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password is e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:
https://tools.cisco.com/RPF/register/register.do
The Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:
For frequently asked questions about the Cisco Feature Navigator, see the FAQs at the following URL:
To identify the software images (feature sets) in Cisco IOS Release 12.2(33)SC that support a specific feature:
Step 1 Go to the Cisco Feature Navigator home page. Enter your Cisco.com login.
Step 2 Click Search by Feature .
Step 3 To find a feature, use either Filter by full or partial feature name or search for available features in alphabetical order. Either a list of features that match the search criteria or a list of features that begin with the number or letter selected from the ordered list is displayed in the text box.
Step 4 Select a feature from the Available Features pane, and click Add to add a feature to the Selected Features pane.
Note To learn more about a feature in the list, click Show Descriptions.
Repeat this step to add additional features. A maximum of 20 features can be chosen for a single search.
Step 5 Click Continue when you are finished selecting features.
Step 6 From the Major Release drop-down menu, choose 12.2SC .
Step 7 From the Release drop-down menu, choose the appropriate maintenance release.
Step 8 From the Platform Family drop-down menu, select the appropriate hardware platform. The Search Results table lists all the software images (feature sets) that support the selected feature.
To determine the features supported in a specific software image (feature set) in Cisco IOS Release 12.2(33)SC:
Step 1 Go to the Cisco Feature Navigator home page. Enter your Cisco.com login.
Step 3 From the Software drop-down menu in the Select First Image Parameters pane, choose IOS .
Step 4 From the Major Release drop-down menu, choose 12.2SC .
Step 5 From the Release Number drop-down menu, choose the appropriate maintenance release.
Step 6 From the Platform Family drop-down menu, choose the appropriate hardware platform.
Step 7 From the Feature Set drop-down menu, choose the appropriate feature set. The Search Results table lists all the features that are supported by the selected feature set (software image).
The following sections list the new and modified hardware and software features supported on the Cisco uBR10012 universal broadband routers in Cisco IOS Release 12.2(33)SCC:
This section describes the hardware features supported in Cisco IOS 12.2(33)SCC7.
A new fan Assembly Module (UBR10012-FAN-PLUS=) is introduced on the Cisco uBR10012 router. This fan assembly has nine internal fans that draw cooling air into the front of the chassis and directs it across the internal components. This fan assembly module provides:
Note The PRODUCT ID LED /switch feature is supported starting Cisco IOS Release 12.2(33)SCC7 and later.
Cisco uBR10012 Universal Broadband Router Fan Assembly Module
A new 3300 W AC PEM module (UBR10-PWR-AC-PLUS=) is introduced on the Cisco uBR10012 router which provides a power output of 3300 W with dual AC-input power connections. This AC PEM module provides:
Note The PRODUCT ID LED /switch feature is supported starting Cisco IOS Release 12.2(33)SCC7 and later.
3300 W AC PEM Module for Cisco UBR10012 Broadband Router Chassis
A new 3300 W DC PEM module (UBR10-PWR-DC-PLUS=) is introduced on the Cisco uBR10012 router which provides a power output of 3300 W with dual DC-input power connections. This DC PEM module provides:
Note The PRODUCT ID LED /switch feature is supported starting Cisco IOS Release 12.2(33)SCC7 and later.
3300 W DC PEM Module for Cisco UBR10012 Broadband Router Chassis
There are no new hardware features in Cisco IOS Release 12.2(33)SCC6.
There are no new hardware features in Cisco IOS Release 12.2(33)SCC5.
There are no new hardware features in Cisco IOS Release 12.2(33)SCC4.
There are no new hardware features in Cisco IOS Release 12.2(33)SCC3.
There are no new hardware features in Cisco IOS Release 12.2(33)SCC2.
There are no new hardware features in Cisco IOS Release 12.2(33)SCC1.
This section describes the hardware features supported in Cisco IOS 12.2(33)SCC. Some features may be new to Cisco IOS Release 12.2(33)SCC but were released in earlier Cisco IOS software releases.
The Cisco UBR-MC20X20V cable interface line card is a 20 by 16 inch card designed specifically for the Cisco uBR10012 universal broadband router. This card transmits and receives RF signals between the subscriber and the headend over hybrid fiber-coaxial (HFC) system. It has five downstream (DS) ports and twenty upstream (US) ports. The line card supports five cable MAC domains (cable interfaces), and the 20 DS and 20 US channels are dynamically associated with any of these five MAC domains. The card has twenty US spigots and five DS spigots. Each of the US spigots supports either two-frequency stacked US channels across ten ports or a single US channel across twenty ports. Each of the DS spigots supports four-frequency stacked channels across five ports. A bar code label on the Cisco UBR-MC20X20V cable interface line card faceplate indicates the type of license configured on it.
Table 5 describes the license information.
The Cisco UBR-MC20X20V cable interface line card provides the following benefits:
The following commands are new or modified in Cisco IOS Release 12.2(33)SCC.
There are no new software features in Cisco IOS Release 12.2(33)SCC7.
There are no modified software features in Cisco IOS Release 12.2(33)SCC7.
This section lists the new features in Cisco IOS Release 12.2(33)SCC6. Some of the features that were released in earlier Cisco IOS software releases are now supported in Cisco IOS Release 12.2(33) SCC6.
The Suppressing Downstream and Upstream Peak Rate TLVs for pre DOCSIS 3.0 Cable Modems feature introduced in Cisco IOS Release 12.2(33)SCB10 is now supported in Cisco IOS Release 12.2(33)SCC6.
The DOCSIS 3.0 upstream (US) peak rate TLV 24.27 and downstream (DS) peak rate TLV 25.27 are enabled on the Cisco CMTS through the cable service class command or the CM configuration file. The DOCSIS 1.x and DOCSIS 2.0 CMs do not support these TLVs. Ideally, if a DOCSIS 1.x or DOCSIS 2.0 CM receives peak rate TLVs during registration, it should ignore these TLVs and proceed with the registration. However there are a few old non-compliant pre DOCSIS 3.0 CMs, which may fail to come online when peak-rate TLVs are received in the registration response from the Cisco CMTS. To overcome this, the Cisco CMTS has introduced this feature which allows you to suppress sending of DOCSIS 3.0 peak rate TLVs to the pre DOCSIS 3.0 CMs.
The following command was introduced:
For more details on this feature, refer to the DOCSIS 1.1 for the Cisco CMTS Routers at the following location:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_docsis11.html
There are no modified software features in Cisco IOS Release 12.2(33)SCC6.
There are no new software features in Cisco IOS Release 12.2(33)SCC5.
There are no modified software features in Cisco IOS Release 12.2(33)SCC5.
This section lists the new features in Cisco IOS Release 12.2(33)SCC4. Some features may be new to Cisco IOS Release 12.2(33)SCC4 but were released in earlier Cisco IOS software releases.
The RF power adjustment feature enables compensation of the extra power loss in the protect path of the Cisco RF Switch. This feature has been enhanced in the Cisco IOS Release 12.2(33)SCC4:
The following commands are new or modified in Cisco IOS Release 12.2(33)SCC4:
For more information about the member subslot command, see the Cisco IOS CMTS Cable Command Reference at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_13_i_to_p.html
The following features introduced in Cisco IOS Release 12.2(33)SCD2 are now supported in Cisco IOS Release 12.2(33)SCC4:
The UBR-MC20X20V cable interface line card additionally supports 10 downstream and 15 downstream licenses.
For more information, see the Configuring the Cisco UBR-MC20X20V Cable Interface Line Card document at:
http://www.cisco.com/en/US/docs/interfaces_modules/cable/broadband_processing_engines/ubr_mc20x20v/configuration/guide/mc20x20v_cfg.html
With the CMTS Upstream Traffic Prioritization feature, you can now set the priority of the QoS profile-2 to a higher value. This higher priority ensures that the Cisco CMTS allows bandwidth request from an initializing cable modem to get precedence over those from online cable modems.
For more information, see the Configuring Upstream Cable Interface Features on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_upstrm_if.html
DOCSIS 3.0 certification is extended to IPDR/SP feature in Cisco CMTS routers. IPDR Streaming Protocol is designed to address the need for a reliable, fast, efficient, and flexible export process of high volume data records such as billing, performance and diagnostic data.
Using the ipdr type command, you can configure the IPDR session type. The IPDR session types that can be defined using this command are event type, time-interval type, and the ad hoc type.
For detailed information about this feature, see the IPDR Streaming Protocol on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ipdr_feature.html
This feature describes how to upgrade firmware on cable modems by dynamically inserting the correct TLV values in the DOCSIS configuration file, which is downloaded by the cable modem. The cable dynamic-secret tftp insert-upgrade-server command was added to support dynamic insertion of the TFTP server address in the DOCSIS configuration file.
For detailed information about upgrading firmware on the cable modems, see the Configuring a Dynamic Shared Secret for the Cisco CMTS document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_dyn_sh_sec.html
Single step upgrade process is the ability of the ISSU feature to upgrade the entire CMTS system using the new issu changeversion command. This process allows the networking device to inform the system that the networking device is performing a complete upgrade cycle automatically, and allows the state transitions to move to the next step automatically.
For detailed information about the ISSU single step upgrade process, see the Cisco IOS In Service Software Upgrade Process document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_issu.html
The power and thermal monitoring feature provides monitoring options for the thermal and power consumption of the Cisco UBR-MC20X20V cable interface line card. The power and thermal monitoring facility monitors the line card at several different points to see whether it is overheating or drawing too much power.
For more information on this feature, see Power and Thermal Monitoring on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_env_monitor.html
A new keyword, full-records , has been added to the cable metering destination and cable metering filesystem commands to provide information about both, active and idle service flow records.
A new command, cable util-interval , has been introduced to configure the interval of the channel utilization. This command can be used for both, cable line cards and the SPA channel.
For more information, see the Usage-Based Billing for the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_use-bsd_bill.html
A new command, show cable modem partial-mode , was introduced in Cisco IOS Release 12.2(33)SCD2 to display information about the cable modems that are in upstream and downstream partial service mode.
For more information about this command, see the Cisco IOS CMTS Cable Command Reference at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_16_show_cable_m_to_show_cable_u.html
The Subscriber Traffic Management (STM) feature allows the service provider to configure a maximum bandwidth threshold over a fixed time period, for a specific service-class (or QoS-profile). The subscribers who exceed this configured threshold are identified and allocated with a reduced QoS. STM works as a low CPU alternative to Network-Based Application Recognition (NBAR) and access control lists (ACLs), however, using STM does not mean that NBAR and ACLs have to be turned off; STM can be applied along with NBAR and ACLs. STM also works in conjunction with the Cisco Broadband Troubleshooter to support additional network management and troubleshooting functions in the Cisco CMTS.
Following are the enhancements in STM Version 1.3:
The following SNMP objects have been added to the CISCO-CABLE-QOS-MONITOR-MIB:
The following commands are new or modified:
For more information about this feature, see the Subscriber Traffic Management feature guide at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_sbsbr_tfmgt.html
The upstream weighted fair queuing (WFQ) is a quality of service (QoS) feature that enables the Cisco CMTS router to allocate optimum bandwidth to upstream service flows based on the WFQ parameter configurations. To enable upstream WFQ, you must configure either the class-based or activity-based WFQ on a cable interface.
The following commands are new or modified:
For more information about this feature, see the Upstream Channel Bonding feature guide at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_uscb_ps2209_TSD_Products_Configuration_Guide_Chapter.html
There are no modified software features in Cisco IOS Release 12.2(33)SCC4.
There are no new software features in Cisco IOS Release 12.2(33)SCC3.
There are no modified software features in Cisco IOS Release 12.2(33)SCC3.
There are no new software features in Cisco IOS Release 12.2(33)SCC2.
There are no modified software features in Cisco IOS Release 12.2(33)SCC2.
The Cisco IOS Software Activation feature is extended to support new Stock Keeping Units (SKU) of the Cisco UBR-MC20X20V Cable Interface Line Cards. These SKUs are defined based on the different upstream and downstream ports' availability on the line card.
The following SKUs are introduced in Cisco IOS Release 12.2(33)SCC1:
For detailed information about this feature and the commands, see the Software Activation on Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/cable/cmts/license/cmts_swact.html
The following features introduced in earlier Cisco IOS Releases are now supported in Cisco IOS Release 12.2(33)SCC1:
Cisco IOS Release 12.2(33)SCB4 introduces the option to add a DOCSIS Set-Top Gateway (DSG) tunnel-group to a subinterface using the cable dsg tg command. After adding the DSG tunnel-group to a subinterface using cable dsg tg command, appropriate IP Internet Group Management Protocol (IGMP) static joins are created and forwarding of DSG traffic begins.
The cable dsg tg group-id command was introduced in this release.
The updated section in the 'Advanced Mode DOCSIS Set-Top Gateway 1.2 for the Cisco CMTS Routers' feature guide is available at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_docsis_gw12.html
There are no modified software features in Cisco IOS Release 12.2(33)SCC1.
This section describes the new cable software features in Cisco IOS Release 12.2(33)SCC. Some features may be new to Cisco IOS Release 12.2(33)SCC but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.2(33)SCC. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.
The Cable Interprocess Communication (IPC) Statistics Collection tool provides debugging information about all CMTS related IPC messages. You can use this tool to analyze the IPC traffic in a cable communications network.
The following commands are new or modified:
For more information about the feature, see:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_ipc_stats_ps2209_TSD_Products_Configuration_Guide_Chapter.html
Cisco IOS Release 12.2(33)SCC introduces the licensing feature for the Cisco uBR10012 router. This release supports Cisco IOS Software Activation on the Cisco uBR10-MC2020V Cable Interface line card, which supports up to 20 Downstream and 20 Upstream channels.
License related information is stored on the line card. License operations include administrative and management operations that can be performed using Command Line Interface (CLI) commands.
The following commands are new or modified:
For detailed information about these commands, see the Cisco IOS Software Activation Command Reference document at:
http://www.cisco.com/en/US/docs/ios-xml/ios/csa/command/csa-cr-book.html
Cisco IOS Release 12.2(33)SCC introduces the option to configure user-defined priorities to map DOCSIS priority value to a excess ratio value. Using the Configurable DOCSIS Downstream Weight feature, you can configure priorities in the downstream direction rather than using the default rates.
The following command was introduced:
For more details on this feature, refer to DOCSIS WFQ Scheduler on the Cisco CMTS Routers at the following location: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_docsis_wfq_sch.html
Cisco IOS Release 12.2(33)SCC introduces the output-rate command to limit the upstream bandwidth output rate to a smaller number than that of the physical link bandwidth.
The following command was introduced:
For more details on this feature, refer to MQC QoS on the Cisco CMTS Routers at the following location: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_mqc_qos.html
Cisco IOS Release 12.2(33)SCC provides support for certificate revocation lists (CRLs) and Online Certificate Status Protocol (OCSP) in DOCSIS 3.0 environment enabling you to validate the certificates issued by the certificate authority (CA) for secure transactions.
The following commands were modified or introduced:
For more details on this feature, refer to DOCSIS 3.0 CRL and OCSP on the Cisco CMTS Routers at the following location: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_crl_ocsp.html
Cisco IOS Release 12.2(33)SCC introduces the following two features for the DOCSIS 3.0 Multicast compliance.
The Default Multicast Authorization Profile feature allows to create default multicast authorization profile group to authorize modems without a profile name in their configuration file.
Group Classifier Rules allows the CMTS to determine the set of Group Configuration (GC) entries whose session range matches the new Source Specific Multicast (SSM) session.
The following commands were modified or introduced:
For more details on these features, refer to DOCSIS 3.0 Multicast Support on the CMTS Routers at the following location:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_d30_mcast_support.html
For detailed information about this feature, see the Embedded Event Manager Overview feature guide at the following URL:
http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_eem_overview.html
Generic Online Diagnostic (GOLD) is a health monitoring feature implemented on the Cisco UBR10012 Universal Broadband Router in the Cisco IOS Release 12.2(33)SCC. The GOLD functionality is developed to provide online diagnostic capabilities that run at bootup, in the background on a periodic basis, or based on demand from the CLI.
The following commands were modified or introduced:
For detailed information about this feature, see the GOLD Health Monitoring for the Cisco UBR10012 Universal Broadband Router document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/GOLD_for_Cisco_uBR_10012_Router.html
The HCCP CLI Blocking feature inhibits configuration of commands on the protect and standby working interfaces of the Cisco uBR10-MC5X20U, Cisco uBR10-MC5X20H, and Cisco UBR-MC20X20V line cards. The configuration is enabled by using the service internal command.
For detailed information about this feature, see the N+1 Redundancy for the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_nplus1_redun.html
From Cisco IOS Release 12.2(33)SCC onwards, CMTS also supports dual-stack that is both IPv4 and IPv6 addressing on the customer premises equipment (CPE). CMTS also supports IPv6 over bundle subinterfaces.
There are no new or modified commands for this feature. For detailed information about this feature, see the IPv6 on Cable document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_ipv6.html
The Downstream External PHY Interface (DEPI) control plane is based upon Layer Two Tunneling Protocol-Version 3 (L2TPv3) signaling. The DEPI is the communication protocol between the Modular Cable Modem Termination Systems (M-CMTS) core and the Edge Quadrature Amplitude Modulation (EQAM). It is an IP tunnel between the MAC (M-CMTS Core) and PHY (EQAM) in an M-CMTS system, which contains both a data path for Data-Over-Cable Service Interface Specifications (DOCSIS) frames and a control path for setting up, maintaining, and tearing down data sessions. The DEPI Latency Measurement (DLM) packet is a special type of data packet used for measuring the network latency between the M-CMTS core and the EQAM.
For detailed information about this feature, see the M-CMTS DEPI Control Plane document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/m-cmts_depi_control_plane.html
The Multiprotocol Label Switching (MPLS) Pseudowire for Cable Layer 2 Virtual Private Network (L2VPN) feature enables service providers to use a single, converged, Internet Protocol (IP)/MPLS network infrastructure to offer Ethernet data link layer (Layer 2) connectivity to two or more VPN customer sites.
The MPLS Pseudowire for Cable L2VPN feature is fully compliant with CableLabs Business Services over DOCSIS (BSOD) L2VPN specification, and is an extension to the existing DOCSIS L2VPN features supported on Cisco CMTS routers.
The following commands are new or modified:
For detailed information about this feature, see:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_mpls_pw.html
Online Offline Diagnostics (OOD) provides a means for testing and verifying line card hardware-related errors in the field. An OOD image can be downloaded from the Cisco.com to perform hardware diagnostic tests on any line card in the uBR10012 router. The test results verify whether the line card is faulty, and are used to troubleshoot the network issue.
The following commands are new or modified:
For detailed information about updates to this feature, see the Online Offline Diagnostics - Field Diagnostics on Cisco uBR10012 Router User's Guide document at:
http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/troubleshooting/fdub10k.html
In Cisco IOS Release 12.2(33)SCC, support for the restricted load balancing group (RLBG)/general load balancing group (GLBG) is based on DOCSIS 2.0 and 3.0 specifications. Using the DOCSIS 3.0 modem-based load balancing specifications, you can manage the load balancing (LB) activity on a per-modem basis. Implementing the DOCSIS 3.0 modem-based LB specifications enables the Cable Modem Termination Systems (CMTS) to provide an advanced service-based LB. With the service-based LB enabled, existing service-based CM segregation features and channel restriction become special cases and can be handled within the same LB framework.
Narrowband (NB) dynamic bandwidth sharing (DBS) with dynamic load balancing (DLB) is also supported and uses radio frequency (RF) channel utilization instead of interface utilization, for load balancing. In earlier releases, there was a restriction on modular cable (MC) interfaces using DBS included in a LB group. In Cisco IOS Release 12.2(33)SCC, a new measurement of link utilization is introduced to overcome the restriction of load balancing on an MC interface using DBS.
The following commands are new or modified in Cisco IOS Release 12.2(33)SCC:
For detailed information about this feature, refer the following guides.
Restricted/General Load Balancing and Narrowband Dynamic Bandwidth Sharing with Downstream Dynamic Load Balancing document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/UBR_RLBG_GLBG_support.html
CM Steering on the Cisco CMTS Routers guide at: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_cm_steer.html
Cisco IOS Release 12.2(33)SCC introduces the S-CDMA and Logical Channel Support feature, which provides support for Synchronous Code Division Multiple Access (S-CDMA) upstream modulation profiles and logical channels on the Cisco cable modem termination systems (CMTS) routers.
The following commands were modified or introduced:
For more details on this feature, refer to SCDMA and Logical Channel Support on the Cisco CMTS Routers at the following location: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_d30_scdma_lc.html
The Serialized DTCC FPGA Autoupgrade feature enables automatic upgrade of the FPGA image stored in the on-board electrically erasable programmable read-only memory (EEPROM). This feature ensures that the FPGA image upgrade happens sequentially on the two DTCC cards installed on a Cisco uBR10012 router.
The following commands are new or modified:
For detailed information about this feature, see the Cisco uBR10012 Universal Broadband Router DTCC Card guide at the following URL:
http://www.cisco.com/en/US/docs/interfaces_modules/cable/installation/dtcccard.html
DOCSIS 3.0 introduced bonded channels or bonding groups that allow a single cable modem to send data over multiple RF channels achieving higher throughput. These bonding groups are defined for both upstream and downstream channels. Cisco IOS 12.2(33)SCC release extends the SFAC feature to support upstream and downstream bonding groups.
Bonding groups are created by combining multiple RF channels. A single RF channel may also be shared by multiple bonding groups.
Bonding group service flow admission control functionality allows to define the maximum reserved bandwidth for an application-type as a fraction of the available bandwidth. This fraction of the bandwidth is defined as a percentage value of the total bandwidth that can be reserved.
The following commands are new or modified:
For detailed information about this feature, see the Service Flow Admission Control for the Cisco CMTS Routers document at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_svflw_ad_ctl.html
The System Event Archive (SEA) is a health monitoring feature. It maintains a log of major and critical events and alarms of the system that helps identify and resolve problems from occurring later. The SEA feature maintains a log of hardware and software events and alarms in the sea_log.dat file. These generated events can be analyzed and copied to the sea_log.dat file at the specified location. The Cisco IOS Release 12.2(33)SCC introduces the SEA feature for Cisco 10012 Universal Broadband Routers.
The following commands are new or modified:
For detailed information about this feature, see the SEA Health Monitoring for the Cisco UBR10012 Routers document at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/SEA_for_Cisco_uBR_10012_Router.html
Three Step Dynamic Modulation allows you to create and use an optional third modulation profile in the Dynamic Upstream Modulation feature, to increase the upstream throughput and to satisfy the demand for new spectrum management.
For more details on this feature, refer to Spectrum Management and Advanced Spectrum Management for the Cisco CMTS guide at the following location: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_spctrm_mgt.html
The upstream load balancing functionality enables the Cisco CMTS router to effectively handle upstream traffic for wideband and narrowband cable modems that are in single upstream mode. Single upstream mode (Mx1) means that the modems cannot send upstream traffic on multiple upstream channels. In the event of traffic overload on a single upstream channel of a wideband or narrowband cable modem, the Cisco CMTS router automatically moves the cable modem to another upstream channel in the same load balancing group.
There are no new or modified commands for this feature.
Fore more information about this feature, see:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_load-bal_dcc.html
The Upstream Channel Bonding feature helps cable operators offer higher upstream bandwidth per cable modem (CM) user by combining multiple radio frequency (RF) channels to form a larger bonding group at the Media Access Control (MAC) layer.
DOCSIS 3.0-based upstream channel bonding is a method for increasing upstream bandwidth up to a maximum of 120 Mbps raw throughput per cable modem user in a cable communications system that includes a Cisco CMTS router and multiple cable modems. The upstream channel bonding method enables a cable modem to transmit data to a Cisco CMTS router on multiple upstream channels simultaneously.
The following commands are new or modified:
For more details on this feature, refer to:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_uscb.html
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:
http://tools.cisco.com/ITDIT/MIBS/servlet/index
If Cisco MIB Locator does not support the MIB information that you need, you can also obtain a list of supported MIBs and download MIBs from the Cisco MIBs page at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
To access Cisco MIB Locator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check verifies that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password is e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:
http://tools.cisco.com/RPF/register/register.do
For information about the MIBs supported by the Cisco universal broadband routers, see the Cisco CMTS Universal Broadband Series Router MIB Specifications Guide.
The Cisco universal broadband routers include or add support for the following MIBs in Cisco IOS Release 12.2(33)SCC:
This section describes restrictions for the Cisco universal broadband routers in Cisco IOS Release 12.2(33)SCC.
For a list of unsupported hardware, see the End-of-Life and End-of-Sale Notices at:
http://www.cisco.com/en/US/products/hw/cable/ps2209/prod_eol_notices_list.html
This section describes other important guidelines or restrictions to consider when running Cisco IOS Release 12.2SC that might not yet be documented in the supporting customer documentation.
The Cisco uBR10012 universal broadband router TCC card does not work as expected when the startup configuration contains the configuration for a Cisco uBR10012 universal broadband router TCC+ card. To fix this issue, use the no card slot / subslot 2cable-tccplus command and then configure the DTI card.
ISSU is not supported for software upgrades between Cisco IOS Releases 12.2(33)SCB and 12.2(33)SCC.
Before performing the ISSU, verify that all Cisco UBR-MC2020V line cards in the chassis have valid licenses. A line card with an invalid license causes service disruption in the ISSU. If there are line cards with invalid licenses, upgrade to a valid license or remove the invalid license line cards before performing the ISSU.
For an ISSU downgrade to the Cisco IOS Release 12.2(33)SCC image, only supported line cards, such as, the Cisco UBR-MC20X20V-20D line card must be present in the chassis. If you have other line cards, then you must remove them from the chassis before the downgrade. You must also verify that the line cards in the chassis are valid for the downgrade image.
Payload Header Suppression (PHS) is not supported on wideband Embedded Media Terminal Adapters (eMTAs) for dynamic downstream service flows.
While performing an OIR of the PCMCIA disk on PRE2, the System Event Archive (SEA) application and other applications such as IPDR write details to the PCMCIA disk on PRE2.
Before performing the OIR, the multiple system operator (MSO) must disable the write access to the PCMCIA disk on PRE2 using the cable filesystem [enable|disable] command. For more information, see the CSCsz77977 .
Statistics for two different divert-rate limit (DRL) WAN-IP streams can momentarily overlap or collide and produce statistics that are lower than expected.
The issue occurs on upstream channels that use a shared connector, where the other upstream channel using the same shared connector is on another downstream and is shutdown. To workaround this issue, you can activate the downstream and other upstream channel using the same shared connector or temporarily unshare the upstream connector.
If you configure a wideband interface with more than one MAC domain host sharing the committed information rate (CIR) bandwidth, then the total wideband interface CIR bandwidth gets fragmented among the MAC domain (MD) hosts sharing the wideband interface CIR bandwidth.
The WB interface CIR bandwidth can be shared by multiple MAC domain hosts, and these MAC domain hosts could potentially be on the same or different cable line cards. As admission control for WB interfaces occurs on cable line cards, the available CIR bandwidth gets partitioned and is given to the MD hosts causing the bandwidth fragmentation. However if a typical service flow CIR is very small compared to the total CIR of the wideband interface, then this fragmentation is not visible until the CIR usage reaches very high levels close to the total interface bandwidth.
With certain bandwidth percentage configuration and traffic distribution, the overall link utilization of dynamic bandwidth sharing (DBS) can be as low as 85 percent. For example, this can occur if the traffic rate on a wideband interface is smaller than its configured bandwidth percentage, but the traffic rate on a modular-cable interface is much larger than its bandwidth percentage. The packet drops occur only on the modular-cable interface which has a larger amount of traffic than its bandwidth-percentage. To workaround this scenario, configure a higher bandwidth percentage to the modular-cable interface, which is larger than or equal to its expected or average traffic rate.
Note This section describes important changes in various Cisco IOS Releases that differ from support found in earlier software releases supported by the Cisco CMTS routers. This section is subject to change and is not intended to cover all changes found in the software. There may be other changes within the software that are not identified here, such as within the new and modified features. Closely read these release notes in their entirety, as well as review the related caveats documents for more information.
Table 6 identifies some of the key changes that you should consider when running Cisco IOS Release 12.2(33)SCC.
Clearing Address Resolution Protocol (ARP) Entries Using the clear arp command can take about 15 seconds to remove all ARP table entries. |
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RPF on the Cisco uBR10012 router requires configuration of the ip verify unicast source reachable-via rx allow-default command to properly interpret default routes. |
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The DOCSIS Weighted Fair Queuing (WFQ) Scheduler replaces the Versatile Traffic Management System (VTMS) scheduler operation on the Cisco uBR10012 router. For more information, see the feature documentation at: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_docsis_wfq_sch.html |
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SPA Interface Processor/Shared Port Adapters
http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/ubr10012/12.3_23_bc/10fpd.html |
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The Spatial Reuse Protocol (SRP) for the Cisco uBR10012 OC-48 line card is not supported. |
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Modular QoS CLI Change Between Cisco IOS Release 12.3BC and Cisco IOS Release 12.2SC and the DOCSIS WFQ Implementation The priority command does not have any arguments. You must use the police command to specify a guaranteed bandwidth. |
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To support logical channel feature, the ordering of the "channel-width" and "docsis-mode" parameters have changed in the cable upstream docsis-mode and cable upstream channel-width commands. Because "channel-width" is a physical channel level parameter, it must be configured before "docsis-mode", which is a logical channel level parameter. For more details on this feature, see the SCDMA and Logical Channel Support on the Cisco CMTS Routers at the following location: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_d30_scdma_lc.html |
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Behavior Change in DOCSIS Set-top Gateway Tunnel
When the DOCSIS Set-top Gateway (DSG) is configured to have a quality of service (QoS) for the DSG tunnel, ensure that the default multicast QoS (MQoS) is configured by using the following command: where service class name is any service class name.
This behavior is observed only when you toggle (enable/disable) the default MQoS. |
This section describes important topics that might not be available in the customer documentation.
The following command-line interface (CLI) changes in Cisco IOS Release 12.2(33)SCB and later may not be available in the customer documentation:
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html .
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