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.

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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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