Cisco RF Gateway 10 Release Notes

Release Notes for Cisco RF Gateway 10 in
Cisco IOS Release 12.2SQ

OL-18677-10
Last Updated: November 5, 2013

The Cisco RF Gateway 10 (RFGW-10) is a Universal Edge Quadrature Amplitude Modulation
(UEQAM) platform in the Cisco RF Gateway series introduced in Cisco IOS Release 12.2(44)SQ. These
release notes for the Cisco RF Gateway 10 describe the features and caveats for all releases in the
Cisco IOS Release 12.2SQ train.

These release notes are updated with each release in the train. This update adds information for
Cisco IOS Release 12.2(50)SQ5. For a list of the caveats that apply to this release, see the “Caveats”

section on page 20.

To download and upgrade to the new ROMMON image for the Cisco RFGW-10, see the ROMMON

Release Notes for Cisco RF Gateway 10.

Cisco recommends 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/support/tsd_products_field_notice_summary.html.

For information on new features and the Cisco IOS documentation set supported on
Cisco IOS Release 12.2(50)SQ5, see the “New and Changed Information” section on page 6 and the

“Related Documentation” section on page 55.

Cisco Systems, Inc.

www.cisco.com

Contents

Contents

• Overview of Cisco RF Gateway 10 UEQAM Platform

• System Requirements, page 3

• New and Changed Information, page 6

• Important Notes, page 19

• Caveats, page 20

• Related Documentation, page 55

• Obtaining Documentation and Submitting a Service Request, page 57

Note Use the service internal command on the Cisco RFGW-10 only for system debugging and

troubleshooting purposes. This command should not be used in normal operation mode.

Overview of Cisco RF Gateway 10 UEQAM Platform

The Cisco RFGW-10 is a carrier-class Universal Edge QAM (UEQAM) platform that offers concurrent
support for standard and high-definition digital broadcast television, Switched Digital Video (SDV),
Video on Demand (VoD), and DOCSIS/Modular CMTS services. It is a chassis-based product based on
open standards with superior performance, capacity, power consumption, ease of management, and
scalability. All components of the Cisco RFGW-10 are designed for high availability, including dual
Supervisor and Ethernet switching line cards, 1:N Universal Edge QAM line cards, dual timing,
communication and control (TCC) line cards, dual load balancing and load sharing DC PEMs and
integrated RF switching modules.

The Cisco RFGW-10 is targeted to cable operators worldwide, and is optimized for operators requiring
carrier-class high availability solutions and wanting to collapse video and data over cable EQAM
systems into a common platform. A collapsed Universal EQAM architecture achieves the following
business benefits: EQAM resource utilization gains, cost efficiencies, rack space optimization, reduced
cost and complexity of management, and high availability for all services. The Cisco RFGW-10 is part
of the Cisco cable ecosystem, and is fully integrated and tested as part of the Cisco Digital Broadband
Delivery System (DBDS) video solution and the Cisco uBR10012 DOCSIS 3.0 and Modular CMTS
solution.

The Cisco RFGW-10 is a centralized switching architecture leveraged from the Cisco Catalyst 4500
Series switches. The Cisco RFGW-10 is a 13-rack unit, modular chassis designed for providing
front-to-back airflow and system-level redundancy. All chassis components are hot-swappable and
redundant. The chassis supports “wire-once” cabling for RF line cards and an integrated dual-zone RF
switch matrix. The Supervisor engine provides non-blocking, robust Layer 2 to Layer 4 switching with
the addition of wire-speed 10-Gigabit Ethernet uplinks, 136 Gbps capacity, and 102 mpps packet
throughput.

The Cisco RFGW-10 system is a UEQAM platform that supports both upstream and downstream RF line
cards over a frequency range of 5 MHz to 1.2 GHz. The initial line card release is a UEQAM downstream
card that supports the DOCSIS (1.0/2.0/3.0), the EURODOCIS, and J-DOCSIS specifications.
Additionally, the RF line card supports high definition digital broadcast television, Switched Digital
Video (SDV), and Video on Demand (VoD) video delivery.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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Based on the Cisco IOS networking software, the Cisco RFGW-10 supports advanced switching and
routing features. The platform supports full upgradeability, ensuring investment protection as software
enhancements and industry standards continue to evolve.

System Requirements

This section describes the system requirements for Cisco IOS Release 12.2SQ series and includes the
following sections:

• Hardware Supported, page 3

• Software Compatibility, page 4

• Determining the Software Version, page 4

• Feature Set Tables, page 5

Hardware Supported

Table 1 provides information on the hardware supported on the Cisco RFGW-10.

System Requirements

Table 1 Hardware Supported on the Cisco RFGW-10

Cisco RFGW Chassis

RFGW-10 Chassis with the following slots: 2 Supervisor, 10 RF line card, two TCC,

and 12 RFGW-10-RFSW (RF switch card) slots. Also includes the
RFGW-10 fan tray assembly and front panel display (FPD).

Cisco RFGW Series Supervisors

RFGW-X4516-10GE RFGW Supervisor V-10GE, 2x10GE (X2) and 4x1GE (SFP).

RFGW-X4516-10GE= RFGW Supervisor V-10GE, 2x10GE (X2) and 4x1GE (SFP) spare.

Cisco RFGW Series TCC Cards

RFGW-TCC1 RFGW timing, communication, and control card v1.

RFGW-TCC1= RFGW timing, communication, and control card v1 spare.

Cisco RFGW Series Line Cards

RFGW-DS48 RFGW universal downstream EQAM card, 12 RF ports, 48 QAMs.

RFGW-DS48= RFGW universal downstream EQAM card, 12 RF ports, 48 QAMs spare.

RFGW-DS48-1G RFGW universal downstream EQAM card, 12 RF ports, 48 QAMs.

Cisco RFGW Series RF Switch Cards

RFGW-10-RFSW1= RFGW RF switch v1 spare.

Cisco RFGW Series PEM Options

RFGW-10-PWR-DC RFGW DC PEM with monitoring v1a.

RFGW-10-PWR-DC1= RFGW DC PEM with monitoring v1 spare.

Cisco RFGW Series Supervisor Memory Options

MEM-C4K-FLD128M Catalyst 4500 IOS-based Supervisor, CompactFlash, 128 MB.

MEM-C4K-FLD128M= Catalyst 4500 IOS-based Supervisor, CompactFlash, 128 MB spare.

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Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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System Requirements

Table 1 Hardware Supported on the Cisco RFGW-10 (continued)

Cisco RFGW Chassis

Cisco RFGW Series Transceiver Modules

SFP-GE-T 1000BASE-T SFP (NEBS 3 ESD) (100 m on Cat5 UTP).

SFP-GE-S 1000BASE-SX short wavelength; with DOM (550 m on MMF).

SFP-GE-L 1000BASE-LX/LH long wavelength; with DOM (10 km on SMF).

X2-10GB-SR 10GBASE-SR X2 module (26 m on MMF).

X2-10GB-LR 10GBASE-LR X2 module (10 km on SMF).

Software Compatibility

The Cisco RF Gateway 10 is supported by the 12.2(44)SQ and 12.2(50)SQ release trains.
Cisco IOS Release 12.2(44)SQ is the first deployment release of the Cisco RFGW-10. It is based on
Cisco IOS Release 12.2(44)SG1 for the Cisco Catalyst 4500 platform. The Cisco RFGW-10 and Catalyst
4500 share common Cisco IOS software on the Supervisor card. Therefore, there is IOS feature parity
in Cisco IOS Release 12.2(44)SQ with release 12.2(44)SG1. The Cisco RFGW-10 features are
supported only on Cisco IOS Release 12.2(44)SQ.

Cisco IOS Release 12.2(50)SQ is based on Cisco IOS Release 12.2(50)SG4 for the Cisco Catalyst 4500
platform. Therefore, Cisco IOS Release 12.2(50)SQ has IOS feature parity with
Cisco IOS Release 12.2(50)SG4. The Cisco IOS Release 12.2(50)SQ1 and later provide
Cisco RFGW-10 specific features as described in this document.

Determining the Software Version

To determine the version of Cisco IOS software running on the Cisco RFGW-10 platform, log in to the
platform and enter the show version EXEC command.

Below is an example of the output from the show version command:

Router# show version

Cisco IOS Software, Catalyst 4500 L3 Switch Software (rfgw-ENTSERVICES-M), Version

12.2(50)SQ5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Mon 07-Jan-13 11:59 by prod_rel_team
Image text-base: 0x10000000, data-base: 0x121F466C

ROM: 12.2(31r)SQ1
Lemmy Revision 62, Force Revision 31, Tie Revision 32

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Feature Set Tables

Table 2 provides a summary of the features supported in the Cisco IOS Release 12.2SQ release train.

Table 2 RFGW-10 Hardware and Software Features in Cisco IOS Release 12.2SQ

Release Supported Hardware Features Supported Software Features

12.2(44)SQ

• RFGW-10 chassis

• RFGW-X4516-10GE (Supervisor

card)

• MEM-C4K-FLD128M (Supervisor

card memory option)

• RFGW-TCC1 (TCC DTI card)

• RFGW-10-RFSW (RF switch card)

• RFGW-10-PWR-DC1 (DC PEM)

• SFP-GE-T (SFP transceiver)

• SFP-GE-S (SFP transceiver)

• SFP-GE-L (SFP transceiver)

• X2-10GB-SR (SFP transceiver)

• X2-10GB-LR (SFP transceiver)

• RFGW-10-FAN-ASSY (Fan

assembly)

System Requirements

• Universal Edge QAM

• M-CMTS DOCSIS MPEG

Transport Manual Mode

• M-CMTS DTI Offset

• 1:1 and 1:N DS-48 Line Card

Redundancy (up to 2 redundancy
groups)

• 1:1 Supervisor Card Redundancy

• 1:1 Timing, Communication and

Control Card Redundancy

• Video: Table-based port mapping

for Video on Demand (VOD) and
Digital Video Broadcast (DVB)

• SNMP MIBs

• GUI Monitoring

• RFGW-10-FPD-KIT= (Front panel

display kit)

12.2(44)SQ1 None None

12.2(44)SQ2 None None

12.2(50)SQ

12.2(50)SQ1 RFGW-DS48-1G

12.2(50)SQ2 None

• Supervisor Stateful Switchover

• M-CMTS DEPI Control Plane

• M-CMTS DEPI Delay Latency

• RFGW-10 Video Control Plane

• 1:1 and 1:N DS-48 Line Card

• Video Stateful Switchover

• Input PID Filtering

• MPTS Multiplexing for

• CBR Clock Recovery

• DEPI Path Redundancy

(SSO)

Measurement

with Generic QAM Interface (GQI)

Redundancy for Video and DEPI

Pass-through Video Sessions

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• DEPI EQAM Statistics

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

5

New and Changed Information

New and Changed Information

These sections list the new and existing hardware and software features supported by the
Cisco RFGW-10.

New Hardware Features in Cisco IOS Release 12.2(50)SQ6

There are no new hardware features supported in the Cisco IOS Release 12.2(50)SQ6.

New Hardware Features in Cisco IOS Release 12.2(50)SQ5

There are no new hardware features supported in the Cisco IOS Release 12.2(50)SQ5.

New Hardware Features in Cisco IOS Release 12.2(50)SQ4

There are no new hardware features supported in the Cisco IOS Release 12.2(50)SQ4.

New Hardware Features in Cisco IOS Release 12.2(50)SQ3

There are no new hardware features supported in the Cisco IOS Release 12.2(50)SQ3.

New Hardware Features in Cisco IOS Release 12.2(50)SQ2

There are no new hardware features supported in the Cisco IOS Release 12.2(50)SQ2.

New Hardware Features in Cisco IOS Release 12.2(50)SQ1

Cisco IOS Release 12.2(50)SQ1 introduces the Cisco RFGW-DS48-1G line card. The
Cisco RFGW-DS48-1G line card has similar features as the RFGW-DS48 line card, however it supports
full DOCSIS DRFI compliance up to an operating frequency of 1GHz. The operating bandwidth of the
Cisco RFGW-DS48-1G line card is 88 MHz to 1GHz. The Cisco RFGW-DS48-1G resolves the noise
floor and spurious emission limitations of the Cisco RFGW-DS48 line card, which was not compliant
with the DRFI technical specifications. For more information on the RFGW- DS-48 line card, see Cisco

RFGW-10 DS-48 Universal EQAM Line Card, page 8.

New Hardware Features in Cisco IOS Release 12.2(50)SQ

There are no new hardware features supported in the Cisco IOS Release 12.2(50)SQ.

New Hardware Features in Cisco IOS Release 12.2(44)SQ2

There are no new hardware features supported in the Cisco IOS Release 12.2(44)SQ2.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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New Hardware Features in Cisco IOS Release 12.2(44)SQ1

Table 3 lists the Cisco IOS Release 12.2(44)SQ1 support for a minor board revision of the

Cisco RFGW-10 DS-48 line card.

Table 3 Cisco RFGW-10 DS-48 line card Board and Upconverter

Cisco IOS Release RFGW-10 DS-48 UEQAM Card Internal DS48 Upconverter

Cisco IOS Release 12.2(44)SQ DS48 Board = 800-28096-01 DS48 Upconverter = 800-29408-01

Cisco IOS Release 12.2(44)SQ1 DS48 Board = 800-28096-02 DS48 Upconverter = 800-29408-02

Note Cisco IOS Release 12.2(44)SQ1 is backward compatible with the existing, released RFGW-10 DS-48

UEQAM line cards (DS48 Board = 800-28096-01) and field-replaceable units (FRUs).

New Hardware Features in Cisco IOS Release 12.2(44)SQ

New and Changed Information

Cisco IOS Release 12.2(44)SQ coincides with the introduction of the Cisco Radio Frequency (RF)
Gateway 10 system. All released field-replaceable units (FRUs) are supported only by Cisco IOS
Release 12.2(44)SQ and the Cisco RFGW-10 platform.

Below is a high level summary of the supported hardware features of the Cisco RFGW-10.

Cisco RF Gateway 10 Universal Edge QAM Chassis

• 13 rack unit carrier-class chassis

–

19-inch rack-mount capability

–

4536-watt capacity

–

Front-to-rear airflow design

–

Integrated RF switching

–

Cable-once (wire-once) coaxial connections

–

LCD front panel display

–

240-Gbps system performance

–

System-level redundancy

• Redundancy system architecture

–

All major FRUs redundant (Supervisor card, line card, PEM)

–

Dual-zone integrated RF data path switch

–

500-ms line card failover

–

Full software and hardware high availability support

–

External Gigabit Ethernet / 10-Gigabit Ethernet redundancy

–

DTI redundancy

–

System operation from single power supply

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Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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New and Changed Information

• Major system components

–

2 Supervisor card slots (1:1 redundant)

–

2 TCC/DTI card slots (1:1 redundant)

–

10 Universal line card slots (1:N redundant)

–

12 RF switch card slots (Dual-zone redundancy)

–

2 DC PEM slots (1:1 redundant)

–

1 Fan tray module

Cisco RFGW-10 DS-48 Universal EQAM Line Card

The Cisco RFGW-10 DS-48 line card is a 12-port, 48-channel UEQAM card designed to support
Downstream External PHY Interface DOCSIS MPEG Transport (DEPI D-MPT), downstream data
traffic, and video applications (VoD, SDV, and broadcast video). The RFGW-10 DS-48 card is similar to
the traditional QAM solutions where the card receives encapsulated data, depacketizes and reformats the
packets, maps them to the output QAM channel, and performs QAM modulation and frequency
upconversion. From a high level, the DS-48 line card receives video and DOCSIS data encapsulated over
Ethernet and outputs analog QAM data to the subscriber devices (set top box (STB) and DOCSIS
modems).

As a DOCSIS engine, the DS-48 line card supports DEPI D-MPT mode. DEPI is based on the L2TPv3
protocol, which includes a data plane and a control plane. DEPI data plane traffic is terminated at the
line card. The Cisco RFGW-10 Supervisor card terminates DEPI control and communicates the control
to each line card in the system via the chassis IPC infrastructure. DOCSIS timing information (10.24
MHz synchronous DTI clock) is received by the line card from the system TCC cards.

As a video engine, the DS-48 terminates video data path traffic forwarded from the Supervisor card
(video control plane traffic is terminated and processed by the system Supervisor card). The DS-48
processing path classifies video packets, performs inter-QAM processing, bit rate scheduling, program
muxing and scheduling, program identifier (PID) remapping, program clock references (PCR)
restamping, and CC restamping.

The DS-48 line card has 12 physical RF ports, which support up to four QAMs per port. The number of
QAM outputs is configurable on a per-port basis (meaning an individual port can support 1, 2, or 4
QAMs as well as muting of individual QAMs within a QAM group). In stacked QAM mode, the QAMs
are stacked contiguously over a 24-MHz or 32-MHz band. The line card supports a downstream channel
frequency range of 88 MHz to 870 MHz.

Table 4 provides the DOCSIS and EuroDOCSIS downstream rates:

Table 4 DOCSIS and EuroDOCSIS Downstream Data Rates

Downstream
Channel Width,
MHz

6 64 QAM (6)

Modulation
Scheme,
bit/symbol

Baud Rate,
MSym/sec

5.056

Raw Bit Rate,
Mb/sec

30.34

Throughput (Bit
Rate - Overhead),
Mb/sec

27

8 64 QAM (6)

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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256 QAM (8)

256 QAM (8)

5.360

6.952

6.952

42.88

41.71

55.62

38

37

48

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The front panel display includes two Gigabit Ethernet ports and a single DVB-ASI interface (covers all
video output streams). The front panel connectors support both copper and fiber SFP modules. The front
panel Gigabit Ethernet ports are not processed directly by the line card; these are independent of the line
card and route directly to the Supervisor card switch fabric. These ports do not go out of service if the
line card crashes and a failover to the redundant card occurs.

A critical feature of the DS-48 line card is redundancy and high availability support. The line cards are
designed to detect and react to a wide range of faults and failures, and respond with sub-second failover
to a dedicated protect card. In the Cisco RFGW-10 platform, DS-48 line cards can be configured with
1:N redundancy (up to 1:9), resulting in a fully-protected, high capacity, and highly dense EQAM
solution.

Supported SFP Modules

• SFP-GE-S: 1000BASE-SX short wavelength; with DOM (550 m on MMF)

• SFP-GE-L: 1000BASE-LX/LH long wavelength; with DOM (10 km on SMF)

• SFP-GE-T: 1000BASE-T SFP (NEBS 3 ESD) (100 m on Cat5 UTP)

Cisco RF Gateway 10 Supervisor Engine V-10GE

The Cisco RFGW-10 Supervisor Engine V-10GE provides data path and data control for all network
interfaces and provides 10-Gigabit Ethernet interfaces for uplink connections. The Cisco RFGW-10
Supervisor design is leveraged from the Cisco Catalyst 4500 Series switch Supervisor family.

The Supervisor Engine V-10GE has a very high performance Ethernet switching feature set. Advanced
traffic management features include:

• Quality of service (QoS)

New and Changed Information

• Virtual LANs (VLANs)

• Multiple traffic queuing techniques such as IP Differentiated Service Code Points (DSCPs)

• Full-featured traffic classification, marking, and policing

The Cisco RFGW-10 Supervisor Engine V-10GE handles the management of DOCSIS and video traffic
for the RF Gateway 10 system. Management of data and video traffic can be split into data plane and
control plane processing. The data plane manages the aggregation and forwarding of multiple services
to the edge QAM resources (for example, Ethernet switching, routing, aggregation, and filtering).
Interactions with control interfaces for video and Data over Cable Service Interface Specifications
(DOCSIS) are managed by the control plane (for example, setup and tear-down of video sessions,
creation of VoIP calls, management of high-speed data services, and management of the distribution of
packets and environmental factors in the gateway). The aggregation management utility in the
Supervisor engine allows cable operators to extract detailed information from a single line card on the
overall operational status of the entire gateway.

The Supervisor engine receives either DEPI (DOCSIS) data or video data (MPEG/UDP/IP) and forwards
the data to the RF line cards based on either the DEPI session content (IP/L2TP) or encapsulated video
session information (IP/UDP). All data path traffic is terminated at the line cards. The Supervisor engine
receives data traffic, classifies the traffic, and forwards the data traffic to the line cards.

Control traffic for DOCSIS (DEPI mode), video, and HA functionality is terminated on the Supervisor
engine. Local video mode (CLI, GUI, SNMP), remote video mode control plane (DNCS, GQI), and
native video mode (GQI v2, object model) are implemented in the IOS and terminated at the Supervisor
engine.

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New and Changed Information

The following defines the LEDs, connectors, and switches on the Cisco RFGW-10 Supervisor Engine
V-1 0G E:

• Console port

• Management port (10/100)

• Reset button

• Compact flash

• Four Ethernet Uplink interfaces

• Two 10GE interfaces

Supported SFP Modules

• SFP-GE-S: 1000BASE-SX short wavelength; with DOM (550 m on MMF)

• SFP-GE-L: 1000BASE-LX/LH long wavelength; with DOM (10 km on SMF)

• SFP-GE-T: 1000BASE-T SFP (NEBS 3 ESD) (100 m on Cat5 UTP)

• X2-10GB-SR: 10GBASE-SR X2 module (26 m on MMF)

• X2-10GB-LR: 10GBASE-LR X2 module (10 km on SMF)

RFGW-10 RF Switch Cards

The RF Switch provides RF data path redundancy at both the line card (slot) level and the RF port level
for bidirectional DOCSIS traffic up to 1.2 GHz. Additionally, the RF Switch cards are the coaxial cable
termination point for the Cisco RFGW-10.

Functionally the RFGW-10-RFSW1 card physically switches out a failed line card (port by port) at the
RF data path level. The card is capable of supporting two simultaneous RF line card failures. It is
designed to support dual 1:N redundancy groups (where N is a group of RF line cards associated with a
single protect card).

There are 12 RF Switch cards per chassis, providing 120 RF ports for the system.

Note The chassis must include all 12 RF Switch cards for proper operation.

Each RF Switch card supports a single Cisco UCH2 connector header; the UCH2 supports 10 MCX
coaxial connections per card. The RF Switch card is physically separate from the RF line card slots
allowing insertion or removal of the RF line cards without disruption of the cable plant wiring.

The RF Switch card is the central hardware component for chassis-level HA features. The card can be
configured and controlled via the system-level CLI functionality. The RF Switch card is a hardware and
firmware-based module (no operating software) that can be field-upgraded via the chassis command line
interface (CLI).

The RF Switch card faceplate includes a single LED. The LED does not indicate a line card failover.

RFGW-10 TCC Cards

The Cisco RFGW-10 UEQAM supports two Timing, Communication, and Control (TCC) slots. The
TCC card acts as a secondary processor that controls the overall system clock generation and
distribution, DOCSIS time-stamp synchronization, and system control of the front panel display (FPD),
and the RF Switch cards.

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New and Changed Information

The most critical function of the TCC card is distribution of the system clocking, in particular the
DOCSIS Timing Interface (DTI). The TCC card is a DTI client interface. It supports dual DTI external
input allowing DTI server redundancy. Based on the DTI input information, the TCC card generates
DOCSIS 10.24-MHz clock and time-stamp information to every line card in the chassis. All clocks and
DOCSIS information are redundant. When there is no external DTI clock, the TCC card provides an
internal DOCSIS DTI clock and time-stamp reference.

When two TCC cards are installed, they are configured as active and backup (redundant). If the TCC
card in the first slot is working at system power-up, it automatically becomes the active card and the TCC
card in the second slot becomes the backup card (typically slot 13 boots as the primary TCC card and
slot 14 as the secondary, but this is not mandatory).

In terms of the overall system high availability, the TCC cards work autonomously from the centralized
control mechanisms. Redundant TCC cards monitor each other’s priority information so that when the
active card fails, the active card role is transferred to the redundant backup card without loss of data.

The following is a summary of the TCC card’s functions and features:

• Generates and distributes 10.24-MHz clock references and 32-bit time-stamp references to every

cable interface line card

• Drives the LCD module used to display the system configuration and status information

• Proxy control mechanism (via Supervisor cards) for the RF Switch cards

• Front panel LEDs providing status and alarm indicators

• Provides two RJ-45 ports supporting redundant DTI server sources

RFGW-10-PWR-DC1 (DC PEM)

The Cisco RFGW-10 system is powered by redundant DC PEMs. An individual PEM is capable of
providing 4536 watts of total output. Redundant modules work as a 1:1 redundancy configuration
supporting current sharing and online insertion and removal (OIR) (hot swapping).

Each PEM includes two 60A input lines that operate between –40 VDC and –72 VDC input voltages.
Proper configuration and operation requires that both DC inputs are properly wired. The PEM also
includes an earth ground connection (this is not power return) for grounding the chassis.

DC PEM features:

• Closed frame, NEBS-compliant module design

• Front-to-back airflow (exhaust air exits out of the rear of the chassis)

• Power input range: –48 VDC to –60 VDC

• 4536W power capacity

• Supports OIR (hot swap) and current sharing

• Supports 1:1 redundancy (system can run with a single PEM)

• CLI support for status and configuration

• Remote shutdown feature

• Front panel LED status and alarm indicators

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New and Changed Information

RFGW-10 Fan Assembly

The Cisco RFGW-10 UEQAM system uses a modular fan assembly to dissipate heat from the system
and control the temperature of the chassis system components (except the DC PEM, which contains its
own internal fan). The fan assembly is a multi-fan design that pulls ambient air from the lower front of
the chassis and exhausts air out of the rear top of the chassis. The fan assembly provides individual fan
control and failure monitoring, multiple thermistors to monitor exhaust air and a wide range of speed
control parameters based on the system and the environmental conditions. Inlet air monitoring is
communicated to the fan tray via the system software from the sensors on each of the RF line cards.

The fan tray module provides the following features:

• Online insertion and removal (OIR) support

• Failure monitoring of individual fans

• Backup temperature monitoring to control individual fan RPM

• Usage counter based on hours of operation (CLI-based)

• Front panel LED for alarm status indication

• Control and power circuit failure alarms

• On-board multi-level fan speed control based on system temperature

New Software Features in Cisco IOS Release 12.2(50)SQ6

There are no new software features supported in the Cisco IOS Release 12.2(50)SQ6.

New Software Features in Cisco IOS Release 12.2(50)SQ5

There are no new software features supported in the Cisco IOS Release 12.2(50)SQ5.

New Software Features in Cisco IOS Release 12.2(50)SQ4

There are no new software features supported in the Cisco IOS Release 12.2(50)SQ4.

New Software Features in Cisco IOS Release 12.2(50)SQ3

This section describes the new and modified software features supported in Cisco IOS Release

12.2(50)SQ3.

DEPI Path Redundancy

The DEPI Path Redundancy feature is supported on the Cisco uBR-MC3GX60V cable interface line card
starting with Cisco IOS Release 12.2(33)SCE1. For more information, see Cisco uBR10012 Router

Release Notes for Cisco IOS Release 12.2(33)SCE.

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New Software Features in Cisco IOS Release 12.2(50)SQ2

This section describes the new and modified software features supported in
Cisco IOS Release 12.2(50)SQ2.

DEPI Path Redundancy

DEPI Path Redundancy (DPR) is used in conjunction with N+1 DEPI control plane redundancy for
Cisco uBR-MC3GX60V line card. This feature allows you to configure a backup DEPI session on the
protect card using the protect-tunnel command in DEPI tunnel configuration mode. In this mode, the
protect line card has a fully operational secondary DEPI control connection and sessions for the QAM
channels on the working line card. The primary DEPI control connection and session is established on
the Gigabit Ethernet ports on the working line card. These primary and secondary DEPI sessions are
paired using the common TSID, which uniquely identifies the target QAM channel.

The following commands were introduced or modified:

• protect-tunnel

• show depi session

• show depi tunnel

For more information, see M-CMTS DEPI Control Plane.

New and Changed Information

Note The DEPI Path Redundancy feature is not supported on the Cisco uBR-MC3GX60V cable interface line

card in Cisco IOS Release 12.2(33)SCE. For more information, see Cisco uBR10012 Router Release

Notes for Cisco IOS Release 12.2(33)SCE.

DEPI EQAM Statistics

The DEPI EQAM statistics feature enables the EQAM to send RF channel statistics to the M-CMTS
router.

The following command was introduced:

• depi eqam-stats

For more information, see M-CMTS DEPI Control Plane.

New Software Features in Cisco IOS Release 12.2(50)SQ1

This section describes the new and modified software features supported in
Cisco IOS Release 12.2(50)SQ1.

Video SSO

Video sessions on the Cisco RFGW-10 are either unicast or multicast sessions created manually or
remotely using Generic QAM Interface (GQI). At run time, the video session state information is check
pointed from the active Supervisor card to the standby Supervisor card.

Unicast video sessions continue to forward traffic during Supervisor card switchover with about an
approximate traffic outage of one second

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New and Changed Information

Multicast video sessions may experience longer traffic outage during Supervisor card switchover. For a
small number of SDV sessions (for example, 1,000), the traffic outage is less than four seconds. For a
large number of SDV sessions (for example, 10,000), the traffic outage time is around ten seconds. This
is because, in Cisco IOS Release 12.2(50)SQ1, the underlying multicast function is not SSO-aware
although the video session state is synchronized to the standby Supervisor card. The SSO performance
of multicast video sessions will be improved in a later release.

For more information, see 1:1 Supervisor Card Redundancy.

Pass-through Video Session Enhancements

The following features have been added for pass-through video sessions:

• MPTS Multiplexing of Pass-through Sessions, page 14

• Input PID Filtering, page 14

• CBR Clock Recovery, page 14

MPTS Multiplexing of Pass-through Sessions

A pass-through session can be multiplexed with other remapped sessions, pass-through sessions, or data
piping sessions into the same QAM channels.

Input PID Filtering

CBR Clock Recovery

The Input PID Filtering feature enables you to specify a list of PIDs to be dropped for a pass-through
video session. PID filtering is used in scenarios where the SI table is replaced in the BDV digital
broadcast feed. The incoming feed from the video session is a Multiple Program Transport Stream
(MPTS) containing BDV SI tables. These SI tables are replaced with locally generated SI tables. The
PID filtering capability enables the drop of SI tables from the incoming feed. The local SI tables can then
be reinserted from a data piping session to be multiplexed to the QAM channel.

Up to 32 PIDs can be filtered per pass-through session.

The following commands have been modified to support input PID filtering:

• cable video udp port {filter pid pid-list}

• asm label {filter pid pid-list}

• ssm label {filter pid pid-list}

For more information, see the Cisco RF Gateway 10 Command Reference and Video guides.

The CBR dejittering and clock recovery method assumes all video sessions are variable bit rate (VBR)
by default. This method also works for sessions that are constant bit rate (CBR) sessions. However, in
scenarios where the MPTS input stream contains programs with faulty PCRs, providing the CBR
information helps isolate the faulty PCRs. Isolating the faulty PCRs prevents them from corrupting the
good PCRs within the same input session. The CBR dejittering and clock recovery mode has been added
in Cisco IOS Release 12.2(50)SQ1 to support this.

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The following commands have been modified to support CBR dejittering and clock recovery:

• cable video udp port {passthru [cbr]}

• ssm label source source-IP-address group group-IP-address [cbr]

• asm label {group IP-address [cbr]}

For more information, see the Cisco RF Gateway 10 Command Reference and Video guides.

New Software Features in Cisco IOS Release 12.2(50)SQ

This section describes the new and modified software features supported in Cisco IOS Release

12.2(50)SQ.

Supervisor Stateful Switchover

In the Supervisor Stateful Switchover (SSO) mode, the standby Supervisor card is fully initialized and
configured. This allows SSO to reduce the switchover time if the active Supervisor card fails, or if a
manual switchover is performed. Both the startup and running configurations are continually
synchronized from the active to the standby Supervisor cards, and the line cards are not reset during a
Supervisor switchover. The interfaces remain active during the switchover, hence the neighboring
routers do not detect a physical link flap (the link does not go down and back up).

The SSO feature supports both the DEPI Manual and the DEPI Protocol modes. It is unavailable for
Video in Cisco IOS Release12.2(50)SQ.

For more information, see 1:1 Supervisor Card Redundancy.

New and Changed Information

M-CMTS DEPI Control Plane

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 over an IP tunnel
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 more information, see M-CMTS DEPI Control Plane.

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New and Changed Information

Video Control Plane with Generic QAM Interface (GQI)

The Generic QAM Interface (GQI) based video control plane provides video session management
through a GQI signaling protocol with Digital Network Control System (DNCS) and Universal
Session/Resource Manager (USRM).

The GQI supports the following:

• Session management: session creation, deletion, and queries

• SDV shell session management: shell session creation, deletion, binding, and unbinding

• Packet management: packet insertion, cancellation, and queries

• Edge device maintenance: reset control.

For more information, see Vid e o .

1:1 and 1:N DS-48 Line Card Redundancy for Video and DEPI

The line card redundancy (LCRED) feature introduced in Cisco IOS Release 12.2(44)SQ supports DEPI
D-MPT traffic under the DEPI Manual mode. In Cisco IOS Release 12.2(55)SQ, line card redundancy
supports Video and DEPI D-MPT with DEPI Control Plane in the DEPI Protocol mode. In case of line
card failure, OIR, or a forced line card switchover, the standby line card becomes active and continues
to process Video or DEPI traffic.

For more information, see the 1:1 and 1:N DS-48 Line Card Redundancy.

New Software Features in Cisco IOS Release 12.2(44)SQ2

This section describes the new and modified software features supported in Cisco IOS Release

12.2(44)SQ2.

Bundled Image upgrade enhancements

The Supervisor image is bundled with upgrades for all device images. The Supervisor card automatically
checks the versions of the software and firmware on all line cards during system boot up and upgrades
as necessary.

For more information, see Bundled Image Upgrade.

New Software Features in Cisco IOS Release 12.2(44)SQ1

There are no new software features supported in Cisco IOS Release 12.2(44)SQ1.

New Software Features in Cisco IOS Release 12.2(44)SQ

Below are the software features supported on the Cisco RFGW-10 for Cisco IOS Release 12.2(44)SQ.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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Universal Edge Quadrature Amplitude Modulation

The Universal EQAM platform integrates the capabilities of an M-CMTS EQAM platform and the
capabilities of a video EQAM, thereby supporting both DOCSIS and digital video services in a single
UEQAM platform. The granularity of the DOCSIS and video traffic mix is per 4-channel group, that is,
per RF port.

The Universal EQAM can be configured with 64 QAM or 256 QAM Downstream Modulation with 1:4
Frequency Stacking under Annex B, Annex A, or Annex C.

M-CMTS DOCSIS MPEG Transport Manual Mode

The interface between the M-CMTS core and the EQAM is defined by Downstream External PHY
Interfaces (DEPI), which is an L2TP-based IP tunnel containing both a data path for DOCSIS frames
and a control path for session setup, maintenance, and tear-down. This feature supports the DEPI data
path with the DOCSIS MPEG Transport (D-MPT) mode with manual configuration for session setup.

D-MPT places integer number of MPEG transport packets into the L2TP payload. Only one D-MPT flow
can be present in a QAM channel. The EQAM extracts the D-MPT packets within the DEPI payload and
forwards them to the output QAM.

The D-MPT feature supports bonded DOCSIS through downstream channel bonding. Channel bonding
is a technique of grouping multiple QAM channels into a bonding group to provide a logical downstream
channel with larger aggregated bandwidth. Bonded traffic can be encapsulated in D-MPT.

D-MPT traffic from the M-CMTS core contains SYNC messages (DOCSIS time stamps). The EQAM
finds all the SYNC messages in the D-MPT payload and performs the SYNC correction.

New and Changed Information

DTI Offset

The DOCSIS Timing Interface (DTI) Offset feature enables DOCSIS timing offset adjustment per
channel in the RFGW-10 DS-48 line card. The operator must measure the actual timing offset adjustment
required on each QAM channel first and then use the DTI Offset CLI to make the adjustment. To
configure all the QAM ports to the same timing offset, use the cable depi offset command specifying
the port range of the QAM interfaces. With this command, users can configure an entire chassis with the
same timing offset.

1:1 and 1:N DS-48 Line Card Redundancy

The RFGW-10 supports both 1:1 and 1:N line card redundancy schemes. 1:1 redundancy refers to a
configuration where a line card has a dedicated backup card. 1:N redundancy means one line card
protecting N line cards. Therefore, a single DS-48 line card can protect as many as nine other line cards.
There can be up to two line card redundancy groups in an RFGW-10 chassis with each group being 1:1
or 1:N redundancy.

The RFGW-10 performs line card switchover on such events as a user-initiated switchover command,
line card insertion and removal (OIR), as well as hardware and software faults, RF upconverter failure,
and DTI failure on the line card. At line card switchover, the standby line card becomes active, resuming
the functions of the line card it is switched from. With the internal RF Switch card, line card switchover
is transparent to the RF connections to the plant.

The line card redundancy supports M-CMTS D-MPT traffic. The line card switchover has little impact
on the DOCSIS applications. This release does not provide line card redundancy support for video
applications.

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New and Changed Information

1:1 Supervisor Card Redundancy

The Cisco IOS Route Processor Redundancy (RPR) feature enables the RFGW-10 to use two Supervisor
cards in a redundant configuration, such that if the active Supervisor card fails or becomes inactive, the
system automatically performs a switchover, where the standby Supervisor card takes over and assumes
full responsibility for systems operations.

The RPR mode is the simplest mode in which the standby Supervisor card completes its initialization
but suspends just before parsing the startup-config. The standby monitors the active Supervisor and
switches over when it detects a failure on the active Supervisor or when the user issues a switchover
command. When the standby Supervisor card becomes active, all the line cards in the chassis are reset
and the startup-config is parsed. There will be a traffic outage in this mode because the line cards are
reset.

1:1 Timing, Communication and Control (TCC) Card Redundancy

The Timing, Communication and Control (TCC) card operates in 1:1 redundancy configuration in the
RFGW-10 chassis, where each TCC card has its own peer as a dedicated backup card in case of failure
(hot standby mode). Only one of the two TCC cards provides the DTI client functionality at any given
time. The standby TCC is accessible from other line cards, but does not provide any DTI functionality.
In the event of active TCC failure, the standby TCC becomes active and serves as the DTI client.

Video

SNMP MIBs

The Cisco RFGW-10 performs MPEG-2 video processing for Video on Demand (VoD) and Digital Video
Broadcast applications. The video feature involves both video control plane and video data plane
functions. The control plane resides on the Supervisor card and the data plane runs on the DS-48 line
card.

The video control plane provides video session configurations with table-based UDP port-to-QAM port
mapping. The table-based mapping is used only for unicast video sessions. Apart from the table-based
mapping, the Cisco RFGW-10 also supports the flexible port mapping method, where the users can set
up video sessions by configuring the mapping dynamically. The flexible port mapping can be used for
both unicast and multicast video sessions. In addition, the video control plane provides show commands
for users to access run-time session information.

The video data plane processes Unicast Constant Bit Rate (CBR) Single Program Transport Stream
(SPTS) for VoD sessions with Trick Mode support, which provides functionalities like fast forward,
rewind, and pause for an MPEG stream. It also serves Multicast Multiple Program Transport Stream
(MPTS) for DVB Pass-Through sessions.

The data plane supports the video feature with a number of video-processing functions including
Program ID (PID) remapping, Program Clock Reference (PCR) restamping, Dejittering and Clock
Recovery, and Program Specific Information (PSI) processing.

The Cisco RFGW-10 provides network management with a set of standard-based MIBs. The MIBs
specific to the Cisco RFGW-10 platform include:

• IF-MIB

• ENTITY-MIB

• DOCS-IF-MIB

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GUI Monitoring

Important Notes

• DOCS-IF-MCMTS-MIB

• DOCS-CABLE-DEVICE-MIB

• DTI-MIB

• SCTE-HMS-MPEG-MIB

• SCTE-HMS-QAM-MIB

In addition, the Cisco RFGW-10 supports MIBs common in Cisco IOS which can be found in the

Cisco RF Gateway 10 MIB Specifications Guide.

GUI Monitoring is a web-based tool that enables operators to monitor the RFGW-10 system. GUI
Monitoring is comprised of two functional components: a web browser client on a computer and a Web
server residing in the Cisco RFGW-10 Supervisor card. The web browser accesses the Cisco RFGW-10
via an authenticated IP connection to the RFGW-10.

The GUI includes the following monitoring pages:

• Universal EQAM Usage Summary

• Inventory

• Alarm

• Environment

• Redundancy

• QAM

• Vid e o

• Performance

• DTI

Important Notes

Cisco IOS Behavior Changes

Behavior changes describe the minor modifications to the way a device works that are sometimes
introduced in a new software release. These changes typically occur during the course of resolving a
software defect and are therefore not significant enough to warrant the creation of a stand-alone
document. When behavior changes are introduced, existing documentation is updated with the changes
described in this section.

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Caveats

Cisco IOS Release 12.2(44)SQ2

This section describes the behavior changes introduced on the Cisco RFGW-10 platform in Cisco IOS
Release 12.2(44)SQ2.

• cable image-upgrade download command modified. A new keyword forced is added to the output

of cable image-upgrade download command.

Old Behavior: The cable image-upgrade download command upgrades all the images on the line
card. The background keyword is used so that the upgrade occurs in the background and the control
is returned to the command prompt.

New Behavior: Using the forced option in the cable image-upgrade download command forces
the upgrade on all the devices on the line card.

Additional information: For more information, see the Cisco RF Gateway 10 Command Reference.

Cisco IOS Release 12.2(44)SQ1

This section describes the behavior changes introduced on the Cisco RFGW-10 platform in Cisco IOS
Release 12.2(44)SQ1.

• show cable line card version command output modified. A new field is added to the output of show

cable line card version command.

Old Behavior: The show cable line card version command displays the image version information

of the line card. The application upgrade version, Rommon version, and image version are
displayed.

Caveats

New Behavior: The show cable line card version command displays the application permanent
version in addition to the application upgrade version, Rommon version, and image version fields.

Additional information: For more information, see the Cisco RF Gateway 10 Command Reference.

Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most
serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only
selected severity 3 caveats are included in the caveats document.

Caveat numbers and brief descriptions for Cisco IOS Release 12.2SQ-based releases are listed in this
section.

If you have an account on Cisco.com, you can use the Bug Toolkit to find Cisco RFGW-10 caveats of
any severity. To reach the Bug Toolkit, use the following URL in your web browser

https://tools.cisco.com/Support/BugToolKit.

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Open Caveats for Cisco IOS Release 12.2(50)SQ6

Caveat Description

CSCub95597 Symptoms: Issuing snmpwalk command on “ifName” MIB object

results in a traceback and a spike in CPU utilization.

Conditions: This issue occurs while issuing snmpwalk command
on ifName MIB object.

Workaround: There is no workaround.

CSCud02393 Symptoms: DEPI midplane pings failed count counter is

incremented by 1 or n even when a DEPI route exists on the Cisco
RFGW-10 router.

Conditions: This issue occurs when the Cisco RFGW-10 router is
left idle for a long time. The show midplane ping statistics
command displays the failed counter value incremented by 1 or n.

Workaround: Clear the midplane ping statistics and verify the
midplane ping statistics again.

CSCud09247 Symptoms: FastEthernet1 port and VLAN interfaces go to down

state after replacing the saved configuration with a running
configuration on the Cisco RFGW-10 router.

Conditions: This issue occurs when the Cisco RFGW-10 is reloaded
and the saved configuration is replaced with the running
configuration.

Workaround: Use the no shut command to unshut the ports.

CSCud16912 Symptoms: The compact flash size is displayed incorrectly on

standby Supervisor card.

Caveats

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Conditions: This issue occurs after swapping the compact flashes
between the active and standby Supervisor cards.

Workaround: There is no workaround.

CSCud19522 Symptoms: The standby Supervisor card goes to Route Processor

Redundancy (RPR) mode after a switchover.

Conditions: This issue occurs when line cards are removed from a
line card redundancy group configuration, and supervisor
switchover is initiated using the redundancy force-switchover
command on the Cisco RFGW-10 router.

Workaround: There is no workaround.

CSCud38529 Symptoms: Data plane DEPI sessions status does not become active

when Cisco RFGW-10 DS48 line card becomes operational after it
is reset.

Conditions: This issue occurs when the stand-alone TCC card reset
without a standby TCC card.

Workaround: Reset the Cisco RFGW-10 DS-48 line card.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

21

Caveats

Caveat Description

CSCud65515 Symptoms: Primary DEPI session do not go to the up state for some

QAM channels on the Cisco RFGW-10.

Conditions: This issue occurs when invalid RF power range exists
for the QAM channels causing loss of DEPI sessions on the QAM
channel.

Workaround: Deconfigure and configure the DEPI tunnel for the
QAM channel. This should bring up the DEPI sessions.

CSCud14476 Symptoms: Modems come to the online state instead of w-online

state after the primary line card is reset or switched over.

Conditions: This issue occurs when the following conditions exist:

• No physical connection exists between the secondary line card

and the CMTS

• Revertive time is set in the redundancy configuration

Workaround: There is no workaround.

CSCud00035 Symptoms: Traceback and error messages are observed on the Cisco

RFGW-10 router after line card revertback.

Conditions: This issue occurred after a line card revertback was
performed using redundancy linecard group switchover slot
command.

Workaround: There is no workaround.

CSCul07567 Symptom: Hike in CPU utilisation observed while verifying the

midplane ping after removing a line card route.

Condition: This occurs when the following steps are done:

• Reset the line card and wait till it is in ready state

• Remove the line card route

Workaround: Add the removed line card route.

CSCul24808 Symptom: Greatwhite IU failure is observed on Cisco RF Gateway

10 (RFGW-10) DS-48 line card.

Condition: This occurs when Cisco RF Gateway 10 (RFGW-10)
DS-48 line card boots up, and heartbeat failure is seen.

Workaround: The RFGW-10 recovers automatically and no
workaround is required.

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Resolved Caveats for Cisco IOS Release 12.2(50)SQ6

Caveat Description

CSCuc34778 Symptoms: Interprocess communication (IPC)

causes the Cisco RFGW-10 to reload with stack
traces.

Conditions: This issue was observed when there is
a momentary spike in the pending IPC messages
under fully loaded condition.

Workaround: There is no workaround.

CSCue30369 Symptom: The following messages are seen in the

logs of the RFGW-10:

RFGW-3-LINECARD_ERRMSG_ERR SLOT 12:can not
get empty local session entry (qam_id 24,
ss_id 0x4001018d)
RFGW-3-UNEXPECTED Invalid response received
for CNFG DEPI SESSION message

-Traceback= 10D31900 10D3204C 108A1AF4
108A116C 10889AF8 1088624C 1091D97C
1091B4EC 10920E90 10928EA8 10916A4C
106689A8 1065FB58
RFGW-3-BULK_DNLD Depi Session ID 1073807757
on Qam3/7.1 failed for Module 12

Conditions: This could occur under conditions
that could cause a continuous teardown and
creation of sessions which will result in stale
sesions created.

Workaround: Reload of RFGW is the only way to
clear the stale sessions.

Additional Information: If stale sessions are
present in primary card, secondary card will
reload since it will not be able to download the
configs from the primary.

This is most likely to occur in new
implementation or configuration where some
erroneous configs are applied at CMTS or RFGW
which result in teardown and creation of sessions.
The sessions that were tore down might remain as
stale sessions.

Caveats

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Caveats

Caveat Description

CSCui48322 Symptom: The physical parameters in the QAM

DB that are learnt from the CMTS in case of
remote learn, are not defaulted or cleared.

!
interface Qam11/8.1
cable downstream rf-shutdown
cable downstream frequency 483000000
<<<<<<<< Cable DS frequency is learnt from
CMTS.
!

Conditions: The following configurations are
required:

• Configure remote learn sessions using cable

mode command

• Change the QAM interface settings to default

settings

Workaround: Set the interface to default twice to:

–

first clear mode, tsid and tunnel
configurations, except the physical
parameters configuration

–

second time, set all the physical
parameters to default

OR

Before defaulting the QAM interface, remove the
remote learn mode, then set the QAM interface
to default.

CSCuh47212 Symptom: Unused DEPI CP protect tunnels are

not deleted. The error message occurs:

ueq01(config)#no depi-tunnel cts01_protect1
% depi-tunnel:cts01_protect1 is in use and
cannot be deleted

Conditions: Enter depi tunnel mode and do the
following:

–

Remove the existing protect tunnel

–

Configure a new protect tunnel

–

Exit.

Workaround: Enter depi tunnel mode and do the
following:

–

directly replace/configure new protect
tunnel. This will delete old tunnel also

–

Exit

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Caveats

Caveat Description

CSCug51573 Symptom: When the TCC active DTI port

changes state, SNMP link events are generated for
the other DTI port also.

Conditions: One DTI port is active and the other
DTI port is inactive on TCC card.

Workaround: There is no known workaround.

CSCtu33213 Symptom: Supervisor card crashes during Online

Insertion and Removal (OIR) with the following
error message:

%RFGW-3-UNEXPECTED: ERROR, Unable to send
RPC MSG(type: 1030) sent to src_slot:4,
dest_slot:4 port: depi_plane due to timeout

Conditions: This occurs when line card OIR is
performed.

Workaround: There is no known workaround.

CSCud43963 Symptoms: Downstream channel is in down state

although the DEPI session is established.

Conditions: This issue occurs when changing the
frequency stacking from 4 to 1, the TSID, mode in
sub interface 2~4 is removed from the
configuration. When changing the frequency
stacking back to 4, the TSID configuration
restores to the earlier state. But QAM mode does
not revert back with no cable downstream
rf-shut command.

Workaround: Manually configure no cable
downstream rf-shut command.

Additional Information: When changing the
frequency stacking on a single port from 4 to 1
and back to 4, the configuration under each QAM
interface restores to the earlier state. However, the
QAM Mode is in “off” state for each QAM
interface. Therefore, the downstream channel is in
down state.

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25

Caveats

Caveat Description

CSCud51870 Symptoms: Previous configurations of the line

card (prior to configuring redundancy) are still
preserved after the line card is removed from the
redundancy group. DEPI sessions are not cleared.

Conditions: This issue occurs when the primary
line card is removed from a redundancy group and
configured as a secondary in a new redundancy
group, and again removed from the new
redundancy group and added back into the
previous redundancy group as a primary line card.

Workaround: Before configuring any line card as
a secondary line card, default all QAM ports of
the line card to be configured as secondary. Issue
the default interface Qam command to default the
interfaces.

or

Manually remove all the configuration for that
line card.

CSCts77756 Symptom: Secondary sup ports are going to

admin down.

Conditions: During upgrade/Downgrade once
after all the LCs bootsup, do "sh ip int b | inc
admin" on slot 1. No ports will be in admin state
and Issue the "sh ip int b | inc admin" CLi in slot
2, all ports are in admin state. When I do SSO
using "red force switch", in newly active sup (slot

2) all ports still are shut.

26

Workaround: Change the ports to up state using
no shut command.

CSCtz57400 Symptoms: DEPI sessions are not established on

the Cisco RFGW-10 when 4 sessions or its
multiples are not configured on the QAM
interface.

Conditions: This issue occurs when less than 4
sessions are configured.

Workaround: Configure DEPI sessions for all 4
channels on a QAM port.

CSCua42551 Symptoms: Front panel LEDs switch off after a

TCC card switchover.

Conditions: This issue occurs after the TCC card
switchover is performed.

Workaround: Reboot the Cisco RFGW-10 router.

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Caveats

Caveat Description

CSCud39606 Symptoms: DEPI sessions are moved to idle state

after upgrading to 12.2(50)SQ5 and the QAM
interfaces are in down state.

Conditions: This issue occurs:

• During image upgrade to 12.2(50)SQ5

• Probability of hitting this issue is 0.2

• QAM interfaces were up before image

upgrade

Workaround: Manually unshut all the affected
QAM ports to bring the sessions back to Active
state.

CSCud38024 Symptoms: DEPI sessions in other QAM

interfaces also get deleted when default interface
range qam command is issued on a particular
QAM interface.

Conditions: This issue occurs when the default
interface range qam command is issued on a
particular QAM interface.

Workaround: Do not use the interface range qam
command for QAM channels.

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Caveats

Caveat Description

CSCui40108 Symptom: Error messages seen on the RFGW-10

and Supervisor V-10GE 10GE
(RFGW-X4516-10GE) line card:

C4K_HWPORTMAN-4-BLOCKEDTXQUEUE Blocked
transmit queue HwTxQId3 on Switch Phyport
Te1/1, count=5702344

Conditions: This occurs when Supervisor V-10GE
10GE is running for long time and TenGigabit
interface, where this issue is observed, is unused
and not connected.

Workaround: Fail-over the SUP line card having
the interface.

CSCuh55064 Symptom: The SNMP query response for

“ifOperStatus” of QAM and QAM-red interfaces
displays their status as “down”. The show [ip]
interface command for QAM interfaces displays
line protocol status is “up”.

Conditions: Cable-RFGW-10 (MPC8540)
running Cisco IOS Release 12.2SQ and the
following show commands are used to display
interface status:

Workaround: There is no impact on functionality.
There is no workaround.

Open Caveats for Cisco IOS Release 12.2(50)SQ5

Caveat Description

CSCtz57400 Symptoms: DEPI sessions are not established on the Cisco RFGW-10 when 4

sessions or its multiples are not configured on the QAM interface.

Conditions: This issue occurs when less than 4 sessions or non-multiples of 4
sessions are configured

Workaround: Configure DEPI sessions in multiples of 4.

CSCua42551,
CSCty27319

Symptoms: Front panel LEDs switch off after a TCC card switchover.

Conditions: This issue occurs after the TCC card switchover is performed.

Workaround: Reboot the Cisco RFGW-10 router.

• show ip interface brief

• show ip interface brief

• show interface

• show ip interface

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

28

OL-18677-10

Caveats

Caveat Description

CSCub95597 Symptoms: Issuing snmpwalk command on ifName MIB objects invokes

traceback and crashes the Cisco RFGW-10 router.

Conditions: This issue occurs while issuing snmpwalk command on ifName MIB
object is performed.

Workaround: There is no workaround.

CSCuc34778,
CSCuc34786

Symptoms: Interprocess communication (IPC) causes the Cisco RFGW-10 to
crash with stack traces.

Conditions: This issue was first observed in Cisco IOS Release 12.2(50)SQ3 and
Cisco IOS Release 12.2(50)SQ4.

Workaround: There is no workaround.

CSCud00035 Symptoms: Traceback and error messages are observed on the Cisco RFGW-10

router after line card revertback.

Conditions: This issue occurred after a line card revertback was performed using
redundancy linecard group switchover slot command.

Workaround: There is no workaround.

CSCud01957 Symptoms: Traceback and error messages are observed on the Cisco RFGW-10

router while resetting the Cisco RFGW-10 line cards (both primary & secondary)
repeatedly multiple times.

Conditions: This issue occurs when line card redundancy is configured on the
Cisco RFGW-10 router and line card is reset repeatedly using hw-module slot
reset command.

Workaround: There is no workaround.

CSCud02393 Symptoms: DEPI midplane pings failed count counter is incremented by 1 or n

even when a DEPI route exists on the Cisco RFGW-10 router.

Conditions: This issue occurs when the Cisco RFGW-10 router is left idle for a
long time. The show midplane ping statistics command displays the failed
counter value incremented by 1 or n.

Workaround: Clear the midplane ping statistics and verify the midplane ping
statistics again.

CSCud09247 Symptoms: FastEthernet1 port and VLAN interfaces go to down state after

replacing the saved configuration with a running configuration on the
Cisco RFGW-10 router.

Conditions: This issue occurs when the Cisco RFGW-10 is reloaded and the saved
configuration is replaced with the running configuration.

Workaround: There is no workaround.

CSCud14476 Symptoms: Modems come to the online state instead of w-online state after

hw-module reset command is issued on the primary line card.

Conditions: This issue occurs when line card redundancy with revertive time-on
is configured on the Cisco RFGW-10 router and hw-module reset command is
issued on the primary line card.

Workaround: There is no workaround.

OL-18677-10

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

29

Caveats

Caveat Description

CSCud16912 Symptoms: The compact flash statistics display incorrectly on standby Supervisor

card.

Conditions: This issue occurs after swapping the compact flashes between the
active and standby Supervisor cards.

Workaround: There is no workaround.

CSCud19522 Symptoms: The standby Supervisor card goes to Route Processor Redundancy

(RPR) mode after a switchover.

Conditions: This issue occurs when line cards are removed from a redundancy
group in a line card redundancy configuration, and redundancy force switchover
command is issued on the Cisco RFGW-10 router.

Workaround: There is no workaround.

CSCud25340 Symptoms: The following error message is observed on the Cisco RFGW-10

router. DEPI sessions cannot be established.

.Nov 16 17:24:58.434: %NETWORK_RF_API-6-IDB_TRANSITIONS_PENDING:
Switchover terminated with 78 transitions pending after there was no
transition activity for 30 seconds

Conditions: This issue occurs after a Supervisor switchover.

Workaround: There is no workaround.

CSCud38024 Symptoms: DEPI sessions in other QAM interfaces also get deleted when default

interface range qam command is issued on a particular QAM interface.

Conditions: This issue occurs when the default interface range qam command
is issued on a particular QAM interface.

Workaround: Do not use the default interface range qam command.

CSCud38529 Symptoms: Data plane DEPI sessions go to idle state after a TCC card reset.

Conditions: This issue occurs after a TCC card reset.

Workaround: Reset the Cisco RFGW-10 DS-48 line card.

CSCud39606 Symptoms: DEPI sessions go to idle state after QAM interfaces are in down state.

Conditions: This issue occurs after a Supervisor card switchover.

Workaround: There is no workaround.

CSCud43963 Symptoms: Downstream channel is in down state although the DEPI session

associated with the QAM interface is in up state, because the QAM mode for each
QAM interface is OFF.

Conditions: This issue occurs when remote DEPI learn mode is configured. This
issue occurs when frequency stacking is changed from 4 to 1 and TSID
configuration is removed.

Workaround: Reconfigure the DEPI configuration (TSID and DEPI tunnel) in
each QAM interface.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

30

OL-18677-10

Caveats

Caveat Description

CSCud51870 Symptoms: Previous configurations of the line card (prior to configuring

redundancy) are still preserved after the line card is removed from the redundancy
group. DEPI sessions are not cleared.

Conditions: This issue occurs when the primary line card is removed from a
redundancy group and configured as a secondary in a new redundancy group, and
again removed from the new redundancy group and added back into the previous
redundancy group as a primary line card.

Workaround: Before configuring any line card as a secondary line card, default all
QAM ports of the line card to be configured as secondary. Issue the default
interface Qam command to default the interfaces.

or

Manually remove all the configuration for that line card.

CSCud65515 Symptoms: Primary DEPI session do not go to the up state for some QAM

channels on the Cisco RFGW-10.

Conditions: This issue occurs when invalid RF power range exists for the QAM
channels causing loss of DEPI sessions on the QAM channel.

Workaround: Deconfigure and configure the DEPI tunnel for the QAM channel.
This should bring up the DEPI sessions.

Resolved Caveats for Cisco IOS Release 12.2(50)SQ5

Caveat Description

CSCsl58384 Symptoms: The Cisco RFGW-10 router crashes due to Layer2 traffic getting

punted to SP (switch processor).

Conditions: This issue occurs when port-security feature is enabled and rate
traffic of high (more than 4k) value of scaled MAC addresses is sent.

Workaround: Rate-limit the Layer2 data using mls rate-limit layer2
port-security 5000 command.

CSCsy92331 Symptoms: Memory leaks and fragmentation are observed when exceptions are

encountered.

Conditions: This issue occurs when SNMP queries lead to exceptions causing
memory leaks.

Workaround: There is no workaround.

OL-18677-10

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

31

Caveats

Caveat Description

CSCsz18634 Symptoms: The input and output packet rate is always displayed with “0” at the

interface level, even though packets are flowing on the ports normally.

Router# show interface gigabitEthernet 4/1
GigabitEthernet4/1 is up, line protocol is up (connected)

......

Output queue: 0/40 (size/max)
30 second input rate 0 bits/sec, 0 packets/sec <<<<<<<<<<<
30 second output rate 0 bits/sec, 0 packets/sec <<<<<<<<<<<
3411001 packets input, 567007874 bytes, 0 no buffer
Received 818876 broadcasts (725328 multicasts)

Conditions: This issue was first observed in Cisco IOS Release 12.2(46)SG.

Workaround: There is no workaround.

CSCtg47129 The Cisco IOS Software implementation of the virtual routing and forwarding

(VRF) aware network address translation (NAT) feature contains a vulnerability
when translating IP packets that could allow an unauthenticated, remote attacker
to cause a denial of service (DoS) condition.

Cisco has released free software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are not available.

This advisory is available at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2
0130327-nat

Note: The March 27, 2013, Cisco IOS Software Security Advisory bundled
publication includes seven Cisco Security Advisories. All advisories address
vulnerabilities in Cisco IOS Software. Each Cisco IOS Software Security
Advisory lists the Cisco IOS Software releases that correct the vulnerability or
vulnerabilities detailed in the advisory as well as the Cisco IOS Software releases
that correct all Cisco IOS Software vulnerabilities in the March 2013 bundled
publication.

Individual publication links are in “Cisco Event Response: Semiannual Cisco IOS
Software Security Advisory Bundled Publication” at the following link:

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar13.html

CSCtr66271 Symptoms: Traceback observed after power off and power on of the

Cisco RFGW-10 line cards.

Conditions: This issue occurs after issuing the no hw-module slot power and
hw-module slot power commands.

Workaround: There is no workaround.

CSCtr86415 Symptoms: Telnet needs to be enabled on Cisco RFGW-10 line cards for

licensing. Cisco RFGW-10 reserves IP address space 10.0.0.1 to 10.0.0.14 for
accessing line cards from Supervisor card. Using these addresses for other
interfaces is prohibited.

Conditions: This issue occurs when RFGW does not allow configuration of IP
address 10.0.0.1 to 10.0.0.14 addresses on other interfaces by default.

Workaround: Use VRF while configuring 10.0.0.1 to 10.0.0.14 addresses for
other interfaces.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

32

OL-18677-10

Caveats

Caveat Description

CSCts25806 Symptoms: The output for the show depi session verbose command is the same

when DEPI is enabled or disabled.

Conditions: This issue occurs when show depi session verbose command is
executed.

Workaround: There is no workaround.

CSCts57957 Symptom: The Cisco uBR10012 router does not allow DEPI session

reconfiguration on Cisco RFGW-10 QAM interface for 60 seconds after being
triggered.

Conditions: This issue occurs when the DEPI session configuration on the
Cisco uBR10012 router is removed.

Workaround: Wait for 60 seconds for the local end of the DEPI session on
Cisco RFGW-10 router to get removed. Then try to reconfigure.

CSCts59691 Symptoms: Traceback observed on Cisco RFGW-10 router while changing the

modulation from Annex B to Annex A on the Cisco uBR10012 router.

Conditions: This issue was observed while changing modulation from Annex B to
Annex A on the Cisco uBR10012 router.

Workaround: There is no workaround.

CSCts61094 Symptoms: Memory leak observed on the Cisco RFGW-10 router.

Conditions: This issue occurs after copying the configuration that contains
manual DEPI configuration on the Cisco RFGW-10 router and is connected to
Cisco uBR10-MC3GX60V line card.

Workaround: There is no workaround.

CSCtt07863 Symptoms: Traceback and error messages are observed on the Cisco RFGW-10

router.

%LCRED-3-LC_CANT_SET_TXRX: Unable to set Active/Standby Tx/Rx
selection for Line Card 11 (idx=11).

Conditions: This issue occurs when the secondary line card has an error condition
such as SerDes failure, S2w failure etc. and is configured as a member of a line
card redundancy (LCRED) group.

Workaround: Replace the secondary line card with a good line card with no failure
condition.

CSCtt37497 Symptoms: The secondary Supervisor card silently reloads due to parser error.

Conditions: This issue occurs while configuring Video feature on the
Cisco RFGW-10 router.

Workaround: There is no workaround.

CSCtu16429 Symptoms: Traceback and error messages are observed on the Cisco RFGW-10

router.

*Nov 1 11:44:09.522: %RFGW-3-UNEXPECTED: Error updating state from LC

OL-18677-10

Conditions: This issue occurs when show cable depi l2tp summary command is
executed on the Cisco RFGW-10.

Workaround: There is no workaround.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

33

Caveats

Caveat Description

CSCtu30476 Symptoms: The show facility-alarm status command output displays gibberish

output.

Conditions: This issue was observed when power supply redundancy was tested
on the Cisco RFGW-10 router.

Workaround: There is no workaround.

CSCtu32163 Symptoms: SSH not working after hostname and domain name change.

Conditions: This issue was first observed in Cisco IOS Release 12.2(50)SQ on the
Cisco RFGW-10 router.

Workaround: Execute redundancy force-switchover command on a redundant
Supervisor card.

CSCtw47308 Symptoms: On reloading the Cisco RFGW-10 the following message may be

seen:

%C4K_TRANSCEIVERMAN-3-S2WERROR: (Suppressed 1 times)S2w bus error
while looking for changed transceivers on port Gi12/13:
S2wErrorNoAckDevAddress

Conditions: This issue was observed when the Cisco RFGW-10 router was
reloaded.

Workaround: There is no workaround.

CSCtw57111 Symptoms: Incorrect bandwidth value is displayed at port level while executing

show interface qam command on the Cisco RFGW-10 router.

Conditions: This issue is seen on Cisco RFGW-10 DS-48 line card.

Workaround: There is no workaround.

CSCtw87166 Symptoms: Image upgrade errors are displayed on the Cisco RFGW-10 when

image is removed from the flash.

Conditions: This issue occurs while inserting the Cisco RFGW-10 DS-48 line
card on the router.

Workaround: There is no workaround. This is a cosmetic issue.

CSCtx54967 Symptoms: Duplicate traps are generated when a power supply unit is inserted

into a Cisco RFGW-10 router. The traps ciscoEnvMonSupplyState and
entConfigChange traps are duplicated.

Conditions: This issue is observed when a power supply unit is inserted into a
Cisco RFGW-10 router.

Workaround: There is no workaround.

CSCtx80384 Symptoms: DEPI sessions exist in the data plane after executing the no cable

mode depi remote learn command.

Conditions: This issue occurs when control plane is configured on the Cisco
RFGW-10 router.

Workaround: There is no workaround.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

34

OL-18677-10

Caveats

Caveat Description

CSCty74762 Symptoms: The line card log may show the following message:

Jul 07 06:23:48 6 10000 0 mv_hw_ctrl >> cnfg_rf_freq_pwr_mv():
set port 0 BW 6, Freq 603000000 Hz
Jul 07 06:23:48 6 10000 0 ERROR mv_hw_ctrl, upx_cmd_set_freq():
UPX freq 500000000 != set freq 603000000

Conditions: This issue occurs randomly on line card when the Supervisor card
performs a bulk configuration to the line card.

Workaround: There is no workaround.

CSCua37072 Symptoms: An intrusive carrier is observed on the Cisco RFGW-10 router

affecting cable modems and also the video channels.

Conditions: This issue occurs on the Cisco uBR10-MC3GX60V line card on
Cisco uBR10012 router connected to a Cisco RFGW-10 router with
Cisco RFGW-10 DS48-G1 line card.This issue is not observed on the
Cisco RFGW-10 DS-48 line card.

Workaround: Switch to the protect card and then revert to the working card. If
protect card does not exist, execute the hw-module slot reset command on the
Cisco RFGW-10 DS48-G1 line card. Perform an OIR of the card if needed.

CSCua85399 Symptoms: The SNMP query does not get completed when executing the

getmany command for entire MIB tree.

Conditions: This issue occurs while running the getmany command for the entire
MIB tree.

Workaround: There is no workaround.

CSCua99738 Symptoms: The show inventory command shows incorrect values for the TCC

hardware revision.

Conditions: This issue occurs under normal conditions.

Workaround: Use the show idprom module command to get the correct values.

CSCub46796,
CSCud42347

Symptoms: The SNMP query does not get completed when executing the
snmpwalk command for entire MIB tree.

Conditions: This issue occurs while running the snmpwalk command for the
entire MIB tree.

Workaround: There is no workaround.

CSCuc34752 Symptoms: Tracebacks seen on the Cisco RFGW-10 router due to l2tp-class

configuration.

Conditions: This issue occurs when l2tp-class configuration is changed to
depi-class configuration. Stateful switchover is configured on the Cisco
RFGW-10 router.

Workaround: Exit out of l2tp-class configuration using exit command before
configuring depi-class configuration.

OL-18677-10

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

35

Caveats

Caveat Description

CSCud07545 Symptoms: The Gigabit Ethernet interfaces goes to admin down state after a

Supervisor card switchover and powering down of the line card.

Conditions: This issue occurs when line card is powered down using the no
hw-module power command and after a Supervisor switchover.

Workaround: Unshut the Gigabit Ethernet interface after powering up the line
card.

CSCud28064 Symptoms: The following error message and traceback is observed on the

RFGW-10 console.

.Nov 17 03:30:02.996: %SYS-2-MALLOCFAIL: Memory allocation of 10000
bytes failed from 0x11832D18, alignment 0
Pool: Processor Free: 640572 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "SNMP ENGINE", ipl= 0, pid= 350

-Traceback= 10D32524 10D32C70 1181EED0 118213F0 11821700 11832D1C
11833958 11696644 11696844 11691144 116918FC 1094ECF8 1094C6D8
11694628 116693F0 11659D5C

Conditions: This issue occurs when snmpwalk command is run continuously for
9 hours causing memory leak.

Workaround: There is no workaround.

CSCud32457 Symptoms: Copying files using secure copy (scp) method on the Cisco RFGW-10

generates errors.

Conditions: This issue occurs while copying files.

Workaround: Copy files as follows:

Router# copy slot0:redirect.out scp://haiwchen@171.70.80.70
Address or name of remote host [171.70.80.70]?
Destination username [haiwchen]?
Destination filename [redirect.out]?
Writing redirect.out
Password:
!!!!!
1137048 bytes copied in 7.604 secs (149533 bytes/sec)

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

36

OL-18677-10

Caveats

Caveat Description

CSCud52179 Symptoms: Line card redundancy group (LCRED) validation fails when

Cisco RFGW-10 DS-48 line card is configured first.

Conditions: This issue occurs with Cisco RFGW-10 DS-48 and
Cisco RFGW-10 DS-48-1G line cards. This issue occurs in 1: N LCRED group
with mixed line cards. The Cisco RFGW-10 DS-48 line card is configured first
and the secondary member validation prevents the backup for incompatible
reserve card.

Workaround: Configure the Cisco RFGW-10 DS-48 line card as the secondary
line card and perform a switchover from Cisco RFGW-10 DS-48-1G line card to
the Cisco RFGW-10 DS-48 line card.

CSCud65986 Symptoms: Error messages are observed on the Cisco RFGW-10 router console.

RFGW-3-LINECARD_ERRMSG_ERR: SLOT 13:TCC_ERRMSG_GEN_LCD_BUSY_TIMEOUT
proc/boot/tcc_front_panel
%RFGW-3-LINECARD_ERRMSG_ERR: SLOT 13:TCC_ERRMSG_LCD_GEN_PRINT_FAILED
%RFGW-3-LINECARD_ERRMSG_ERR: SLOT 13:TCC_ERRMSG_GEN_LCD_BUSY_TIMEOUT
proc/boot/tcc_front_panel
%RFGW-3-LINECARD_ERRMSG_ERR: SLOT 13:TCC_ERRMSG_LCD_GEN_COMMAND_FAILED

Conditions: This issue occurs after a Supervisor card switchover is performed
using redundancy reload shelf command.

Workaround: There is no workaround. No functional impact is observed.

Open Caveats for Cisco IOS Release 12.2(50)SQ4

Caveat Description

CSCtr78519 Symptoms: The Cisco RFGW-10 DS-48 line cards reset due to a heartbeat failure.

Conditions: This issue occurs when the TCC card is reset by the Supervisor due
to heartbeat failure causing Cisco RFGW-10 DS-48 line cards to reset.

Workaround: Extend the TCC heartbeat timeout value. Else, try to re-seat the
TCC card.

OL-18677-10

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

37

Caveats

Resolved Caveats for Cisco IOS Release 12.2(50)SQ4

Caveat Description

CSCtn96911 Symptoms: The following DEPI related error messages and tracebacks may be

displayed on the Cisco RFGW-10 when a N+ 1 line card switchover occurs on the
peer Cisco uBR10012 router.

Mar 23 15:17:54 CDT: %RFGW-3-LINECARD_ERRMSG_ERR: SLOT
6:MV_ERRMSG_DP_MSG_RECONFIG_SES: mv_depi: 1074135170 6/3.1
Mar 23 15:17:54 CDT: %RFGW-3-UNEXPECTED: Invalid response received for
CNFG DEPI SESSION message

-Traceback= 10D2FE20 10D3056C 108A11D0 108A29FC 1089C414 1089D9B0
106689A8 1065FB58
Mar 23 15:17:56 CDT: %RFGW-3-UNEXPECTED: Error updating state from LC

-Traceback= 10D2FE20 10D3056C 108A1BBC 1089F40C 1089CABC 1089D9BC
106689A8 1065FB58

Conditions: This issue occurs on the Cisco RFGW-10 connected to a Cisco
uBR10012 router with Cisco uBR-MC3GX60V line cards. This issue was
observed when DEPI Path Redundancy (DPR) feature was configured, and N+1
line card switchover occurred on the Cisco uBR10012 router.

Workaround: The “%RFGW-3-UNEXPECTED: Error updating state from LC”
traceback may be suppressed if M-CMTS statistics collection is disabled using
the no depi eqam-stats command.

There is no workaround for the “%RFGW-3-LINECARD_ERRMSG_ERR:
SLOT 6:MV_ERRMSG_DP_MSG_RECONFIG_SES” error message and
“%RFGW-3-UNEXPECTED: Invalid response received for CNFG DEPI
SESSION message” traceback.

CSCto14916 Symptoms: On upgrade or reload of the Cisco RFGW-10, the

Cisco RFGW-10 DS-48-1G line card in the standby slot becomes active for one
of the Cisco RFGW-10 DS-48 primary line card.

38

Conditions: This issue occurs as the Cisco RFGW-10 DS-48 line cards take longer
to upgrade than the Cisco RFGW-10 DS-48-1G line cards. This might cause a
silent line card failover to the secondary line card after a system reset occurs.

Workaround: Make the Cisco RFGW-10 DS-48 line card the protect line card for
the Cisco RFGW-10 DS-48 line card, and the make Cisco RFGW-10 DS-48-1G
line card the protect line card for the Cisco RFGW-10 DS-48-1G line card to
avoid a failover upon a system reset.

CSCto54434 Symptoms: DEPI sessions are not recovered after a fan tray failure occurs on a

Cisco RFGW-10 Supervisor in stateful switchover (SSO) mode.

Conditions: This issue is observed when fan tray failure occurs for more than 4
minutes causing a reset of the Supervisor and the line cards.

Workaround: Reload the Cisco RFGW-10.

CSCto56865 Symptoms: The debug scm audit command is enabled across reloads and power

cycles.

Conditions: This issue occurs as the debug scm audit command is enabled by a
default in the configuration.

Workaround: Override the default setting by executing the no debug cable scm
audit command. This setting will be lost after a reload or power-cycle.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

OL-18677-10

Caveats

Caveat Description

CSCto72423 Symptoms: DEPI sessions in learn mode on a missing primary line card fail to get

established after a system reload.

Conditions: This issue occurs when the primary line card is removed during OIR,
and the secondary line card becomes active. After a reload, the DEPI sessions in
learn mode on this primary line card fail.

Workaround: Re-insert the missing primary line card or remove learn mode and
use the cable mode depi remote mode.

CSCto88995 Symptoms: The show interfaces transceivers command does not display any value

even when the SFP transceiver modules are connected to the Cisco RFGW-10
Supervisor or the line card.

Conditions: This issue was first observed in Cisco IOS Release 12.2(50)SQ.

Workaround: There is no workaround.

CSCtq30229 Symptom: Either one of the two TCC cards in slot 13 or slot 14 does not reach the

“Ready” state.

Conditions: This issue occurs when the TCC cards are booted from the Supervisor
in slot 2. If the cards are booted from the Supervisor in slot 1, the cards reach the
“Ready” state.

Workaround: There is no workaround.

CSCtq58396 Symptoms: DEPI sessions on RF port 12 are not functional.

Conditions: This symptom happens only when QAM or DEPI configuration is
applied after a Supervisor switchover.

Workaround: Reset the primary line card, and the secondary line card, if it is
protected.

CSCts08763 Symptoms: The Cisco RFGW-10 monitors both the client and server health status,

instead of only monitoring the client health status.

Conditions: This issue occurs when the DOCSIS Timing Interface (DTI) port on
the Standby Timing, Communication and Control (TCC) card is unplugged from
the server. This also occurs when the TCC card is in a race condition and, the
Standby TCC card that is in a fast or holdover state becomes active.

Workaround: Reset the active TCC card, and make the Standby TCC card in the
normal or free-run state to become active.

OL-18677-10

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

39

Caveats

Open Caveats for Cisco IOS Release 12.2(50)SQ3

Caveat Description

CSCtn96911 Symptoms: The following DEPI related error messages and tracebacks may be

displayed on the Cisco RFGW-10 when a N+ 1 line card switchover occurs on the
peer Cisco uBR10012 router.

Mar 23 15:17:54 CDT: %RFGW-3-LINECARD_ERRMSG_ERR: SLOT
6:MV_ERRMSG_DP_MSG_RECONFIG_SES: mv_depi: 1074135170 6/3.1
Mar 23 15:17:54 CDT: %RFGW-3-UNEXPECTED: Invalid response received for
CNFG DEPI SESSION message

-Traceback= 10D2FE20 10D3056C 108A11D0 108A29FC 1089C414 1089D9B0
106689A8 1065FB58
Mar 23 15:17:56 CDT: %RFGW-3-UNEXPECTED: Error updating state from LC

-Traceback= 10D2FE20 10D3056C 108A1BBC 1089F40C 1089CABC 1089D9BC
106689A8 1065FB58

Conditions: This issue occurs on the Cisco RFGW-10 connected to a Cisco
uBR10012 router with Cisco uBR-MC3GX60V line cards. This issue was
observed when DEPI Path Redundancy (DPR) feature was configured, and N+1
line card switchover occurred on the Cisco uBR10012 router.

Workaround: The “%RFGW-3-UNEXPECTED: Error updating state from LC”
traceback may be suppressed if M-CMTS statistics collection is disabled using
the no depi eqam-stats command.

There is no workaround for the “%RFGW-3-LINECARD_ERRMSG_ERR:
SLOT 6:MV_ERRMSG_DP_MSG_RECONFIG_SES” error message and
“%RFGW-3-UNEXPECTED: Invalid response received for CNFG DEPI
SESSION message” traceback.

Resolved Caveats for Cisco IOS Releases 12.2(50)SQ3

Caveat Description

CSCtk63045 Symptoms: After Supervisor switchover, “No such session” messages are seen in

the newly active Supervisor. This does not affect the performance of the system.

Conditions: This issue occurs when the Supervisor is configured in stateful
switchover (SSO) redundancy mode, the DEPI control plane protocol is in use
instead of DEPI manual, and the Supervisor switchover CLI (redundancy force
switchover) is executed.

Workaround: There is no workaround.

CSCtk97075 Symptoms: Traceback is observed on the new active Supervisor after Supervisor

switchover. This does not affect the performance of the system.

Conditions: This issue occurs when DEPI control plane is configured, the Cisco
RFGW-10 is in stateful switchover (SSO) mode, and the line card
high-availability is not configured on both the Cisco CMTS and Cisco RFGW-10.

Workaround: There is no workaround.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

40

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Caveats

Caveat Description

CSCtl00116 Symptoms: Secondary line card member is not added.

Conditions: This issue occurs when line card redundancy is configured and the
line card redundancy group ID is not 0 or 1.

Workaround: Use line card redundancy group ID 0 or 1.

CSCtk82886 Symptoms: The the Cisco RFGW-10 displays secondary control plane DEPI

sessions instead of primary DEPI sessions. The secondary sessions are treated as
primary sessions, thus disrupting the actual primary sessions causing the cable
modems to go offline.

Conditions: This issue occurs when DEPI Path Redundancy (DPR) is configured
and Cisco RFGW-10 works in conjuction with the Cisco uBR10012 router
running Cisco IOS Release 12.2(33)SCE1. The issue was triggered after a PRE
switchover on the Cisco uBR10012 router.

Workaround: There is no workaround.

CSCtn09101 Symptoms: Traceback and error messages are seen on the Cisco RFGW-10 when

depi eqam-stats is executed and a line card switchover occurs on the peer CMTS.

Conditions: This issue when depi eqam-stats is executed and protect DEPI tunnel
with more than 24 channels is configured on the Cisco RFGW-10, and the peer
CMTS does a DEPI Path Redundancy (DPR) line card switchover.

Workaround: Execute no depi eqam-stats command to disable EQAM statistics
information sent to the CMTS router.

CSCtn15255 Symptom: Tracebacks and error messages are observed on the Cisco RFGW0-10

when DEPI sessions are present.

Conditions: This issue occurs when both primary and secondary DEPI sessions
are present.

Workaround: There is no workaround.

CSCtn09061 Symptom: The Supervisor crashes after configuring or deconfiguring depi-class

and depi-tunnel commands on the Cisco RFGW-10.

Conditions: This issue occurs when the depi-class commands are entered in a
single instance, and the exit command was not issued to return to the global
configuration mode.

Workaround: Do a Manual DEPI configuration.

CSCtn44190 Symptom: The Cisco RFGW-10 DS-48 up-converter cannot output higher RF

power as Cisco RFGW-DS48-1G line card.

Conditions: This issue may occur in scenarios such as 53 dBmV channel power is
requested through the Supervisor CLI, and the measured RF channel power on the
RF switch output is lesser than 52 dBmV. This occurs because the
Cisco RFGW-10 DS-48 line card limits the Cisco RFGW-10 DS-48 up-converter
maximum output power.

Workaround: Reduce the RF channel power setting (for example, for 4:1 stacking,
set the power lower to less than 52 dBmV).

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Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

41

Caveats

Open Caveats for Cisco IOS Release 12.2(50)SQ2

Caveat Description

CSCtk63045 Symptoms: After Supervisor switchover, "No such session" messages are seen in

the newly active Supervisor. This does not affect the performance of the system.

Conditions: This issue occurs when the Supervisor is configured in stateful
switchover (SSO) redundancy mode, the DEPI control plane protocol is in use
instead of DEPI manual, and the Supervisor switchover CLI (redundancy force
switchover) is executed.

Workaround: There is no workaround.

CSCtk97075 Symptoms: Traceback is observed on the new active Supervisor after Supervisor

switchover. This does not affect the performance of the system.

Conditions: This issue occurs when DEPI control plane is configured, the Cisco
RFGW-10 is in stateful switchover (SSO) mode, and the line card
high-availability is not configured on both the Cisco CMTS and Cisco RFGW-10.

Workaround: There is no workaround.

CSCtl00116 Symptoms: Secondary line card member is not added.

Conditions: This issue occurs when line card redundancy is configured and the
line card redundancy group ID is not 0 or 1.

Workaround: Use line card redundancy group ID 0 or 1.

Resolved Caveats for Cisco IOS Releases 12.2(50)SQ2

Caveat Description

CSCth59227 Symptoms: The Supervisor HTTP process takes more number of CPU cycles and

leads to CPU utilization spikes.

Conditions: This issue was observed at the 30 second interval while monitoring
the GUI Summary page with DEPI sessions configured on the Cisco RFGW-10.

Workaround: There is no workaround.

CSCti06671 Symptoms: The confreg value command that is used for changing the register

configuration on the Cisco CMTS is not supported on the Cisco RFGW-10
Supervisor.

Conditions: When you execute the confreg value command, the following
message is displayed:

usage: confreg

Workaround: There is no workaround.

CSCti96877 Symptoms: Approximately 25% to 50% of the cable modems drop offline after

Supervisor switchover.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

42

Conditions: This issue occurs when DEPI control plane is used between the Cisco
CMTS and Cisco RF Gateway 10 with multiple DEPI tunnels in use.

Workaround: Use manual DEPI.

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Caveats

Caveat Description

CSCtj05272 Symptoms: A difference of 65 to 70 units is observed in the timing offset received

by a modem.

Conditions: This issue occurs with Cisco IOS Release 12.2(50)SQ1 when
Cisco RFGW-10 is used for downstream by a modem registered on the CMTS.
This difference is observed between Cisco IOS Release 12.2(50)SQ1 and Cisco
IOS Release 12.2(50)SQ.

Workaround: Adjust the DSYNC setting on the CMTS router to compensate for
the difference in the timing offset.

CSCtj33733 Symptoms: Cable modem goes offline after the Cisco uBR10012 router, to which

the Cisco RFGW-10 is connected, performs a performance routing engine (PRE)
switchover.

Conditions: This issue occurs with large number of DEPI sessions. This has been
observed when control plane DEPI is in use and the secondary DEPI sessions are
configured.

Workaround: There is no workaround.

CSCtj48068 Symptoms: OIR of the active Supervisor resets the Cisco RFGW-10 DS-48 line

cards and drops the cable modems making them go offline.

Conditions: This issue occurs occasionally when the active Supervisor in slot 2 is
removed.

Workaround: There is no workaround.

CSCtj82785 Symptoms: The Cisco RFGW-10 DS-48 line card RF ports remain in admin

shutdown mode and Video/DEPI sessions remain IDLE.

Conditions: This issue occurs after line card image upgrade and reload.

Workaround: Execute "no shutdown" at QAM port level to enable all the
interfaces.

CSCtj82810 Symptoms: The standby Supervisor crashes.

Conditions: This issue occurs when the system is in stateful switchover (SSO)
mode and you copy commands from a running-config output to re-apply the
depi-tunnel configuration commands.

Workaround: Exit to the config mode before executing the depi-tunnel
configuration commands.

CSCtj89608 Symptoms: Standby Supervisor crashes when the DEPI remote learn mode change

is aborted.

Conditions: This issue occurs when you reject deletion of sessions at the CLI
confirmation prompt while changing the DEPI remote learn mode.

Workaround: Ensure that there are no DEPI sessions configured before changing
the remote learn mode on the QAM channel or accept the confirmation prompts.

CSCtk07058 Symptoms: Secondary DEPI sessions are not configurable with third-party Edge

QAM.

Conditions: This issue occurs when the CMTS and EQAM are configured for
DEPI Path redundancy (DPR).

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Workaround: There is no workaround.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

43

Caveats

Caveat Description

CSCtk08497 Symptoms: The secondary line card becomes active after image upgrade.

Conditions: This issue occurs when the Cisco RFGW-DS48-1G is the secondary
line card and the Cisco RFGW-10 DS-48 is the primary line card after image
upgrade.

Workaround: Manually switch over the primary and secondary line cards.

CSCtk14770 Symptoms: The qam-red interface reverts back to its start-up configuration state

(shut or unshut) after Supervisor switchover.

Conditions: This issue occurs when line card redundancy is configured,
Supervisor is in stateful switchover (SSO) mode and the qam-red interface is
unshut when in "shut" state or shut when in "unshut" state before Supervisor SSO
happens.

Workaround: Manually unshut the qam-red interfaces in "shut" state or vice versa.

Open Caveats for Cisco IOS Release 12.2(50)SQ1

There are no open caveats in Cisco IOS Release 12.2(50)SQ1.

Resolved Caveats for Cisco IOS Releases 12.2(50)SQ1

Caveat Description

CSCtf46739 Symptoms: The default service heartbeat configuration command does not set the

heartbeat timers of the warning-timeout, fatal-timeout, and alive-timeout to their
respective default values of 3 sec, 5 sec, and 300 sec.

Conditions: This issue occurs while executing the default service heartbeat
configuration command.

Workaround: Set the three timers individually as follows:

Router(config)# service heartbeat warning-timeout 3
Router(config)# service heartbeat fatal-timeout 5
Router(config)# service heartbeat alive-timeout 300

CSCte87050,
CSCtf91969

CSCtg00973 Symptoms: The Cisco RFGW-10 Supervisor card cannot boot up.

Symptoms: A multiple program transport stream (MPTS) pass-through session
generates input overruns, and the output drops the alarms.

Conditions: This issue occurs when the input MPTS session contains one or more
programs with bad Program Clock References (PCRs). The set-top box is unable to
lock and display the programs in the output QAM channel.

Workaround: There is no workaround.

Conditions: This issue occurs when the clear config all command is executed. This
command resets the environment variables on the Supervisor card including the
“SkipDiagsAlways” variable, which on power cycle triggers a boot up diagnostic.
Boot up diagnostics is not supported on the Cisco RFGW-10 Supervisor card,
which causes the Supervisor card to hang during boot up.

Workaround: Set the “SkipDiagsAlways=1” in ROMMON mode.

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44

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Caveats

Caveat Description

CSCtg22801 Symptoms: When the SCTE-HMS-QAM-MIB object is queried, the

“rfQamChannelUtilization” value is always zero for the Video QAM and the
“rfQamChannelOutputBw” value is truncated.

Conditions: This issue occurs when the “rfQamChannelUtilization” and
“rfQamChannelOutputBw” values of the SCTE-HMS-QAM-MIB object are
queried.

Workaround: There is no workaround.

CSCtg63326 Symptoms: The Cisco RFGW-10 DS-48 line card generates the error message:

LC_ERRMSG_VIDEO_PSI_SECTION_ALLOC_FAILED

Conditions: This issue occurs when video streams contain private program-specific
information (PSI).

Workaround: Remove the private PSI.

CSCtg76204 Symptoms: The ifIndex field in the entAliasMappingTable for the QAM

subinterface is not current.

Conditions: This issue occurs when the Cisco RFGW-10 DS-48 line card is added
or removed, or a line card switchover is performed on the Cisco RFGW-10 chassis.

Workaround: There is no workaround.

CSCth00685 Symptoms: Incorrect bandwidth information is displayed in the GUI of the

Cisco RFGW-10.

Conditions: This issue occurs when the Cisco RFGW-10 is configured with more
than one line cards and an attempt is made to view the bandwidth information of
these line cards.

Workaround: Click the Session radio button to view the bandwidth information for
all line cards.

CSCth29058 Symptoms: The Layer 3 pings from the Cisco uBR10012 router to the cable

modems in w-online state fail. The payload of NULL packets from the
Cisco RFGW-10 DS-48 RF port are zeroes, instead of a Pseudo Random Bit
Sequence (PRBS).

Conditions: This issue occurs when the RF port on the Cisco RFGW-10 DS-48 line
card is in “rf-shut” state.

Workaround: Configure the RF port on the Cisco RFGW-10 DS-48 line card to “no
rf-shut” state. If the RF port is not in use, then it is recommended that you do not
connect the RF port to the RF plant.

CSCth41923 Symptoms: The following error messages are seen on the Cisco RFGW-10:

%RFGW-3-LINECARD_ERRMSG_ERR: SLOT
4:LC_ERRMSG_VIDEO_PSI_SECTION_ALLOC_FAILED Snoop, id -1

Conditions: This issue occurs after many video sessions transition from “ACTIVE”
to “OFF”.

Workaround: There is no workaround.

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45

Caveats

Open Caveats for Cisco IOS Release 12.2(50)SQ

Caveat Description

Command RF
Output Power

DRFI requires support for an 8-dB range of commanded transmit power per
channel below the maximum power supported for the channel (maximum power is
8 dB). The Cisco RFGW-10 is tested to a range of 10 dB of commanded power
below the maximum supported channel power.

Note The Cisco RFGW-10 CLI allows a commanded RF power range 30 dB

lower than maximum supported channel power (maximum power - 30 dB).
However, a commanded power range below 10 dB of maximum power
supported is not calibrated and may not be accurate.

Resolved Caveats for Cisco IOS Release 12.2(50)SQ

Caveat Description

CSCsu27160 Symptoms: The GUI: HTTP CORE process may use a large amount of Supervisor

CPU at web page refresh.

Conditions: This issue occurs when a GUI web browser page is refreshed.

Workaround: There is no workaround.

CSCsv01988 Symptoms: The GUI “Summary” page does not display dual Supervisor interfaces

correctly. The GUI does not display information on the “Summary” page in the
SUP Input B/W or SUP Input Measurement sections.

Conditions: This issue occurs when redundant Supervisor cards are configured.

Workaround: There is no workaround.

CSCta60651 Symptoms: Burst pre-FEC errors are observed on the Cisco RFGW-10 DS-48 line

card.

Conditions: The issue was first observed in Cisco IOS Release 12.2(44)SQ2.

Workaround: There is no workaround.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

46

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Caveats

Caveat Description

CSCta83794 Symptoms: The number of “FRURemoved” traps does not match the number of

“FRUInserted traps” from the RF Switch cards.

Conditions: This issue occurs when the TCC cards are switched over using the
redundancy tcc switchover command. The RF Switch cards are part of the TCC
FRU. Therefore, when the TCC cards are switched over, the RF Switch cards to
generate the FRURemoved and FRUInserted traps.

Workaround: There is no workaround.

CSCtb86762 Symptoms: The default keyword does not set the default value for some QAM

CLIs.

Conditions: This issue was seen in the following commands:

cable downstream annex

cable downstream rf-shutdown

cable downstream stacking

Workaround: Set the default values manually for the commands.

cable downstream annex B

cable downstream rf-shutdown

cable downstream stacking 4

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Caveats

Open Caveats for Cisco IOS Release 12.2(44)SQ2

Caveat Description

CSCsu27160 Symptoms: GUI: HTTP CORE process may take a large percent of Supervisor CPU

at web page refresh.

Conditions: This issue occurs when a GUI web browser page is refreshed.

Workaround: There is no workaround.

CSCsv01988 Symptoms: The GUI “Summary” page does not display dual Supervisor interfaces

correctly. The GUI does not display information on the “Summary” page in the
SUP Input B/W or SUP Input Measurement sections.

Conditions: This issue occurs when redundant Supervisor cards are configured.

Workaround: There is no workaround.

Command RF
Output Power

RF Gateway 10
Cablelabs DRFI
Compliance

12.2(44)SQ to

12.2(44)SQ2
upgrade

12.2(44)SQ1 to

12.2(44)SQ2
upgrade

DRFI requires support for an 8-dB range of commanded transmit power per
channel below the maximum power supported for the channel (maximum power is
8 dB). The Cisco RFGW-10 is tested to a range of 10 dB of commanded power
below the maximum supported channel power.

Note The Cisco RFGW-10 CLI allows a commanded RF power range 30 dB

lower than maximum supported channel power (maximum power - 30 dB).
However, a commanded power range below 10 dB of maximum power
supported is not calibrated and may not be accurate.

The noise floor and spurious emissions of the Cisco RF Gateway 10 DS-48 line
card do not meet the requirements of the Cablelabs DRFI technical specification.

The image upgrade of the Supervisor card involving Timing, Communication and
Control (TCC) card may take up to 40 minutes from Cisco IOS Release 12.2(44)SQ
to 12.2(44)SQ2. During the upgrade of the TCC card, the DS-48 line cards are
reset. The cable modems go offline till the upgrade process is complete, and line
cards are ready (LED is Green). Also note that during the upgrade process, many
error and alarm messages are sent to the log that are expected and will eventually
clear once the upgrade is complete.

The image upgrade involving the TCC card may take up to 10 minutes from

12.2(44)SQ1 to 12.2(44)SQ2. During the TCC upgrade, the DS-48 line cards are
reset and some error and alarm messages are sent to the log that are expected and
will eventually clear once the upgrade is complete.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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Resolved Caveats for Cisco IOS Release 12.2(44)SQ2

Caveat Description

CSCsx07352 Symptoms: During a system boot up, it takes about 4 minutes for AAA server to

allow a console login after the first “Press RETURN to get started” message is
displayed at the prompt. During this period, the box displays “% Authentication
failed.” message after the return key is pressed.

Conditions: This issue occurs when the following conditions are configured:

• AAA accounting

• AAA authentication

Workaround: Disable AAA accounting configuration.

CSCsx24142 Symptoms: De-configured “snmp trap link-status” reappears after chassis reloads

or hw-module reset command is executed.

Conditions: This issue occurs after de-configuring “snmp trap link-status”, saving
the running configuration and then reloading the chassis or using the hw-module
reset command.

Workaround: There is no workaround.

CSCsy01867 Symptoms: SNMP and system messages about internal Gigabit Ethernet interfaces

or loopback interfaces are displayed. These messages should not been seen by the
user.

Conditions: The messages are displayed during a system boot up.

Workaround: There is no workaround.

CSCsy14112 Symptoms: During a Cisco RFGW-10 DS-48 line card failover and switchback, a

spike in the noise floor is seen in the RF spectrum. The noise floor lasts about half
a second.

Caveats

Conditions: The RF noise shows up on the line card switchback after a failover.
This problem also shows up if a port is configured with all parameters kept in mute
state. When the port is moved from mute to unmute state, the noise is seen in the
spectrum.

Workaround: There is no workaround.

CSCsy33389 Symptoms: The Cisco RFGW-10 DS-48 line card switchover from a primary card

to the secondary card results in high-level RF noise floor.

Conditions: This issue may happen when the QAM channel power is set to a higher
level (> 51 dBmV) and line card switchover is performed. It depends on the RF
frequency and the slot ID of the primary line card.

Workaround: Lower the RF power setting on primary line cards.

CSCsy78520 Symptoms: NULL packets in Annex B QAM 64/256 cause higher RF noise floor.

Conditions: This happens when the data traffic in RF channel is idle.

Workaround: There is no workaround.

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49

Caveats

Caveat Description

CSCsy82914 Symptoms: The Cisco RFGW-10 DS-48 line card hardware control process crashes

and the line card does not respond to user configuration.

Conditions: This issue occurs when the user exercises the Supervisor CLI
command show cable linecard cpuload to query the line card CPU utilization too
many times (> 1000). This causes a line card IPC failure due to the memory leak
by the CPU process routine.

Workaround: If not necessary, do not query the line card CPU too often. For
DOCSIS application, the average CPU load on lime card should be an average of
around 30% ~ 40% maximum.

CSCsy85741 Symptoms: The following messages are displayed during a QAM configuration:

00:36:27: %RFGW-3-UNEXPECTED: Cold not allocate qam database rollback
buffer

Conditions: This happens while configuring a large number of QAMs using a
combination of the following commands:

cable downstream stacking 1

cable depi offset

no cable downstream rf-shutdown

Workaround: Set the stacking level on all ports to “4” while configuring the DEPI
offset and executing the rf-shutdown command, and then set the stacking level to
“1”.

CSCsz12116 Symptoms: Cable modems drop off line after the Cisco RFGW-10 DS-48 line card

switchover or switchback.

Conditions: This happens when more than 250 sessions configured across the
chassis. This behavior is seen in both Cisco IOS Release 12.2(44)SQ and

12.2(44)SQ1 images.

Workaround: Avoid sending DEPI data traffic from CMTS to unused QAM ports
when “1” RF stacking value is confided, thus reducing the chances of cable
modems dropping off line at line card switchover.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

50

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Open Caveats for Cisco IOS Release 12.2(44)SQ1

Caveat Description

CSCsu27160 Symptoms: GUI: HTTP CORE process may take a large percent of Supervisor CPU

at web page refresh.

Conditions: This issue occurs when a GUI web browser page is refreshed.

Workaround: There is no workaround.

CSCsv01988 Symptoms: The GUI “Summary” page does not display dual Supervisor interfaces

correctly. The GUI does not display information on the “Summary” page in the
SUP Input B/W or SUP Input Measurement sections.

Conditions: This issue occurs when redundant Supervisor cards are configured.

Workaround: There is no workaround.

CSCsx24142 Symptoms: De-configured “snmp trap link-status” reappears after chassis reloads

or hw-module reset command is executed.

Conditions: This issue occurs after de-configuring “snmp trap link-status”, saving
the running configuration and then reloading the chassis or using the hw-module
reset command.

Caveats

Command RF
Output Power

RF Gateway 10
Cablelabs DRFI
Compliance

12.2(44)SQ to

12.2(44)SQ1
upgrade

Workaround: There is no workaround.

DRFI requires support for an 8-dB range of commanded transmit power per
channel below the maximum power supported for the channel (maximum power is
8 dB). The Cisco RFGW-10 is tested to a range of 10 dB of commanded power
below the maximum supported channel power.

Note The Cisco RFGW-10 CLI allows a commanded RF power range 30 dB

lower than maximum supported channel power (maximum power - 30 dB).
However, a commanded power range below 10 dB of maximum power
supported is not calibrated and may not be accurate.

The noise floor and spurious emissions of the Cisco RF Gateway 10 DS-48 line
card do not meet the requirements of the Cablelabs DRFI technical specification.

The image upgrade of the Supervisor card involving Timing, Communication and
Control (TCC) card may take up to 40 minutes from Cisco IOS Release 12.2(44)SQ
to 12.2(44)SQ1. During the upgrade of the TCC card, the DS-48 line cards are
reset. The cable modems go offline till the upgrade process is complete, and line
cards are ready (LED is Green). Also note that during the upgrade process, many
error and alarm messages are sent to the log that are expected and will eventually
clear once the upgrade is complete.

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Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

51

Caveats

Resolved Caveats for Release 12.2(44)SQ1

Caveat Description

CSCsk64158 Symptoms: Several features within Cisco IOS software are affected by a crafted

UDP packet vulnerability. If any of the affected features are enabled, a successful
attack will result in a blocked input queue on the inbound interface. Only crafted
UDP packets destined for the device could result in the interface being blocked,
transit traffic will not block the interface.

Cisco has released free software updates that address this vulnerability.

Workarounds that mitigate this vulnerability are available in the workarounds
section of the advisory. This advisory is posted at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20
090325-udp.

CSCso04657 Symptoms: SSLVPN service stops accepting any new SSLVPN connections.

Conditions: A device configured for SSLVPN may stop accepting any new
SSLVPN connections, due to a vulnerability in the processing of new TCP
connections for SSLVPN services. If “debug ip tcp transactions” is enabled and this
vulnerability is triggered, debug messages with connection queue limit reached
will be observed. This vulnerability is documented in two separate Cisco bug IDs,
both of which are required for a full fix: CSCso04657 and CSCsg00102.

CSCsv04836 Multiple Cisco products are affected by denial of service (DoS) vulnerabilities that

manipulate the state of Transmission Control Protocol (TCP) connections. By
manipulating the state of a TCP connection, an attacker could force the TCP
connection to remain in a long-lived state, possibly indefinitely. If enough TCP
connections are forced into a long-lived or indefinite state, resources on a system
under attack may be consumed, preventing new TCP connections from being
accepted. In some cases, a system reboot may be necessary to recover normal
system operation. To exploit these vulnerabilities, an attacker must be able to
complete a TCP three-way handshake with a vulnerable system.

In addition to these vulnerabilities, Cisco Nexus 5000 devices contain a TCP DoS
vulnerability that may result in a system crash. This additional vulnerability was
found as a result of testing the TCP state manipulation vulnerabilities.

Cisco has released free software updates for download from the Cisco website that
address these vulnerabilities. Workarounds that mitigate these vulnerabilities are
available.

This advisory is posted at

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20
090908-tcp24.

CSCsw23043 Symptoms: Resetting one line card causes a momentary glitch on another line card.

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

52

Conditions: This issue occurs only when the hw-module slot reset command is
issued.

Workaround: Use the cable linecard reset command to reset a line card.

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Caveats

CSCsw26480 Symptoms: When un-muting an RF port, the RF power level tends to raise the noise

floor around the RF channels supported momentarily (for several hundreds of
milliseconds). There are no reported issues of cable modem performance, though
impact is observable on a spectrum analyzer.

Conditions: This issue occurs during muting the RF port output power.

Workaround: There is no workaround.

CSCsw26789 Symptoms: The DocsDevEvent table does not function.

Conditions: When the MIB table is accessed, there is no data returned.

Workaround: There is no workaround.

CSCsx24891 Symptoms: The SNMP trap message is not displayed in the log file for line card

reset.

Conditions: The SNMP trap works when running shut/no shut interface command
on the line card, but, the trap message is not logged after a line card reset.

Workaround: Use snmp-server queue-length command to increase the size of the
trap queue.

During line card reset, some trap messages could be dropped because of trap queue
overflow on the device. If trap messages are being dropped, the size of the trap
queue may be increased (for example, to 1000) to determine if trap messages can
be sent during line card reset.

For the detail of snmp-server queue-length, please see

http://www.cisco.com/en/US/docs/ios/netmgmt/command/reference/nm_20.html#
wp1012887

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Caveats

Open Caveats for Cisco IOS Release 12.2(44)SQ

Caveat Description

CSCsu27160 Symptoms: The GUI: HTTP CORE process may take a large percent of Supervisor

CPU at web page refresh.

Conditions: This issue occurs when a GUI web browser page is refreshed.

Workaround: There is no workaround.

CSCsv01988 Symptoms: The GUI “Summary” page does not display dual Supervisor interfaces

correctly. The GUI does not display information on the “Summary” page in the
SUP Input B/W or SUP Input Measurement sections.

Conditions: This issue occurs when redundant Supervisor cards are configured.

Workaround: There is no workaround.

CSCsw23043 Symptoms: Resetting one line card causes a momentary glitch on another line card.

Conditions: This issue occurs only when the hw-module slot reset command is
issued.

Workaround: Use the cable linecard reset command to reset a line card.

CSCsw26480 Symptoms: When un-muting an RF port, the RF power level tends to raises the

noise floor around the RF channels supported momentarily (for several hundreds
of milliseconds). There are no reported issues of cable modem performance, though
the impact is observed on a spectrum analyzer.

Conditions: This issue occurs during muting the RF port output power.

Workaround: There is no workaround.

CSCsw26789 Symptoms: The “DocsDevEvent” table does not function.

Command RF
Output Power

RF Gateway 10
Cablelabs DRFI
Compliance

Conditions: When the MIB table is accessed, there is no data returned.

Workaround: There is no workaround.

DRFI requires support for a 8 dB range of commanded transmit power per channel
below the maximum power supported for the channel (maximum power - 8 dB).
The Cisco RFGW-10 is tested to a range of 10 dB of commanded power below the
maximum supported channel power.

Note The Cisco RFGW-10 CLI allows a commanded RF power range 30 dB

lower than maximum supported channel power (maximum power - 30 dB).
However, a commanded power range below 10 dB of maximum power
supported is not calibrated and may not be accurate.

The noise floor and spurious emissions of the Cisco RF Gateway 10 DS-48 line
card do not meet the requirements of the Cablelabs DRFI technical specification.

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Resolved Caveats for Cisco IOS Release 12.2(44)SQ

Caveat Description

CSCsm27071 A vulnerability in the handling of IP sockets can cause devices to be vulnerable to

a denial of service attack when any of several features of Cisco IOS software are
enabled. A sequence of specially crafted TCP/IP packets could cause any of the
following results:

The configured feature may stop accepting new connections or sessions.

The memory of the device may be consumed.

The device may experience prolonged high CPU utilization.

The device may reload. Cisco has released free software updates that address this
vulnerability.

Workarounds that mitigate this vulnerability are available in the “workarounds”
section of the advisory. The advisory is posted at

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20
090325-ip

CSCsr29468 Cisco IOS software contains a vulnerability in multiple features that could allow

an attacker to cause a denial of service (DoS) condition on the affected device. A
sequence of specially crafted TCP packets can cause the vulnerable device to
reload.

Related Documentation

Cisco has released free software updates that address this vulnerability.

Several mitigation strategies are outlined in the workarounds section of this
advisory.

This advisory is posted at

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20
090325-tcp

Related Documentation

The following sections describe the documentation available for the Cisco RFGW-10 platform.

Platform-Specific Documents

These documents are available for the Cisco RF Gateway 10 platform on Cisco.com:

• Cisco RF Gateway 10 Hardware Installation Guide

• Cisco RF Gateway 10 Command Reference

• Cisco RF Gateway 10 Software Feature and Configuration Guide

• Cisco RF Gateway 10 MIB Specification Guide

• Cisco RF Gateway 10 Quick Start Guide

• ROMMON Release Notes for Cisco RF Gateway 10

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Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

55

Related Documentation

Feature Modules

Feature modules describe new software enhancements, committed as features, and are updates to the
Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, and
configuration tasks, and a command reference. As updates, the feature modules are available online only.
Feature module information is incorporated in the next printing of the Cisco IOS documentation set.

Cisco IOS Software: Cisco IOS Software Release 12.2SQ Family: Cisco IOS Software Releases

12.2(44)SQ: Feature Guides

Cisco IOS Software Documentation Set

The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS
command references, and several other supporting documents.

Cisco IOS Software: Cisco IOS Software Release 12.2SQ Family: Cisco IOS Software Releases

12.2(44)SQ: Configuration Guide and Command Reference

Documentation Modules

Each module in the Cisco IOS documentation set consists of one or more configuration guides and one
or more corresponding command references. Chapters in a configuration guide describe protocols,
configuration tasks, and Cisco IOS software functionality, and contain comprehensive configuration
examples. Chapters in a command reference provide complete command syntax information. Use each
configuration guide with its corresponding command reference.

Cisco IOS Software: Cisco IOS Software Release 12.2SQ Family: Cisco IOS Software Releases

12.2(44)SQ: Command Reference

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

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Obtaining Documentation and Submitting a Service Request

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS)
feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds
are a free service and Cisco currently supports RSS Version 2.0.

This document is to be used in conjunction with the documents listed in the “Related Documentation” section.

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of
Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The
use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.

© 2008-2013 Cisco Systems, Inc. All rights reserved.

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Obtaining Documentation and Submitting a Service Request

Release Notes for Cisco RF Gateway 10 in Cisco IOS Release 12.2SQ

58

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