Table Of Contents
Release Notes for the Cisco 3600 Series for Cisco IOS Release 12.0(3)XG
Determining Your Cisco IOS Software Release
Upgrading to a New Software Release
Voice over Frame Relay Using FRF.11 and FRF.12
Cisco IOS Software Document Set
Cisco IOS Release 12.0 Documentation Set
Software Configuration Tips on the Cisco Technical Assistance Center Home Page
Release Notes for the Cisco 3600 Series for Cisco IOS Release 12.0(3)XG
March 29, 1999
These release notes describe new features and significant software components that support Cisco IOS Release 12.0(3)XG for the Cisco 3600 series routers. Cisco IOS Release 12.0(3)XG is based on Cisco IOS Release 12.0(3)T.
Use these release notes with the cross-platform Release Notes for Cisco IOS Release 12.0 located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
For a list of software caveats that apply to Release 12.0(3)XG, refer to the "Caveats" section.
Contents
Introduction
Cisco 3600 series includes the Cisco 3620 and Cisco 3640 routers. As modular solutions, the Cisco 3620 and Cisco 3640 enable corporations to increase dial-up intensity and take advantage of current and emerging WAN (wide-area network) technologies and networking capabilities. The Cisco 3600 series routers are fully supported by Cisco IOS software, which includes dial-up connectivity, LAN-to-LAN routing, data and access security, WAN optimization, and multimedia features.
System Requirements
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Determining Your Cisco IOS Software Release
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Memory Requirements
Hardware Supported
Cisco IOS Release 12.0(3)XG supports the Cisco 3600 series routers:
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Table 2 Supported Interfaces on the Cisco 3600 Series
16- and 32-port Asynchronous network module
All Cisco 3600 series platforms
6- to 30-port Integrated Digital Modems network module
All Cisco 3600 series platforms
8- or 16-port Integrated Analog network module
All Cisco 3600 series platforms
1- and 4-port Ethernet (AUI and 10BaseT)
All Cisco 3600 series platforms
4/16 Mbps Token Ring
All Cisco 3600 series platforms
Fast Ethernet (100BaseTX and 100BaseFX)
All Cisco 3600 series platforms
Single port 10/100BaseTX with 1-port Channelized/PRI E1 balanced mode
All Cisco 3600 series platforms
Single port 10/100BaseTX with 1-port Channelized/PRI E1 unbalanced mode
All Cisco 3600 series platforms
Single port 10/100BaseTX with 1-port Channelized/PRI T1
All Cisco 3600 series platforms
Single port 10/100BaseTX with 1-port Channelized/PRI T1 with CSU
All Cisco 3600 series platforms
Single port 10/100BaseTX with 2-port Channelized/PRI E1 balanced mode
All Cisco 3600 series platforms
Single port 10/100BaseTX with 2-port Channelized/PRI E1 unbalanced mode
All Cisco 3600 series platforms
Single port 10/100BaseTX with 2-port Channelized/PRI T1
All Cisco 3600 series platforms
Single port 10/100BaseTX with 2-port Channelized/PRI T1 with CSU
All Cisco 3600 series platforms
1 Ethernet and 2 WAN Card Slot
All Cisco 3600 series platforms
1 Ethernet, 1 Token Ring, and 2 WAN Card Slot
All Cisco 3600 series platforms
2 Ethernet and 2 WAN Card Slot
All Cisco 3600 series platforms
2-port ISDN BRI S/T TE Voice interface card
All Cisco 3600 series platforms
1- and 2-port Voice/Fax network module
All Cisco 3600 series platforms with Voice/Fax network module
2-port E&M Voice interface card
All Cisco 3600 series platforms
2-port FXO Voice interface card
All Cisco 3600 series platforms with Voice/Fax network module
2-port FXS Voice interface card
All Cisco 3600 series platforms with Voice/Fax network module
48/56/64 kbps
All Cisco 3600 series platforms
1.544/2.048 Mbps
All Cisco 3600 series platforms
Up to 8 Mbps on 4-port Serial network module
All Cisco 3600 series platforms
52 Mbps max using High Speed Serial Interface (HSSI) network module
All Cisco 3600 series platforms
1- and 2-port Channelized T1 and E1 network module
All Cisco 3600 series platforms
1-port ATM-25 network modules for the Cisco 3600 series
All Cisco 3600 series platforms
1-port BRI with NT or S/T WAN interface card
All Cisco 3600 series platforms
1-Port High Speed Serial Interface network module (HSSI)
All Cisco 3600 series platforms
4- and 8-port BRI network module with NT1
All Cisco 3600 series platforms
4- and 8-port BRI network module with S/T interface
All Cisco 3600 series platforms
4- and 8-port Synchronous/Asynchronous
All Cisco 3600 series platforms
4-port Serial
All Cisco 3600 series platforms
56/64 kbps DSU/CSU
All Cisco 3600 series platforms
T1 WAN interface card for Cisco 3600, Cisco 2600, and Cisco 1600 series
All Cisco 3600 series platforms
T1 with Integrated DSU/CSU for the Cisco 3600, Cisco 2600, and Cisco 1600 series
All Cisco 3600 series platforms
1 The Voice/Fax network modules require Cisco IOS Plus feature sets.
2 The ATM-25 network modules require Cisco IOS Plus feature sets.
Determining Your Cisco IOS Software Release
To determine the version of Cisco IOS software currently running on a Cisco 3600 series router, log in to the router and use the show version EXEC command. See the following sample output from the show version command. The version number is indicated on the second line as shown below:
Cisco Internetwork Operating System SoftwareIOS (tm) 3620 Software (C3620-JS-MZ), Version 12.0(3)XG, RELEASE SOFTWAREUpgrading to a New Software Release
For general information about upgrading to a new software release, refer to the Cisco IOS Software Release 11.3 Upgrade Paths and Packaging Simplification (#703: 12/97) product bulletin located on CCO.
From the CCO home page, click on this path:
Service & Support: Product Bulletins: Software
Under Cisco IOS 11.3, click on Cisco IOS Software Release 11.3 Upgrade Paths (#703: 12/97).
This product bulletin does not contain information specific to Cisco IOS Release 12.0(3)XG but provides general upgrade information that may apply to Cisco IOS Release 12.0(3)XG.
Feature Set Tables
Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features.
Table 3 Feature Sets Supported by the Cisco 3600 Series for Release 12.0(3)XG
IP Standard Feature Sets
IP
Basic1
c3620-i-mz, c3640-i-mz
Cisco 3620, Cisco 3640
IP Plus
Plus2
c3620-is-mz, c3640-is-mz
Cisco 3620, Cisco 3640
IP/FW
Basic
c3620-io-mz, c3640-io-mz
Cisco 3620, Cisco 3640
Desktop IBM Standard
Feature SetsIP/IPX/AppleTalk/
DECBasic
c3620-d-mz, c3640-d-mz
Cisco 3620, Cisco 3640
IP/IPX/AppleTalk/
DEC PlusPlus
c3620-ds-mz, c3640-ds-mz
Cisco 3620, Cisco 3640
IP/IPX/AppleTalk/
DEC/FW PlusPlus
c3620-dos-mz, c3640-dos-mz
Cisco 3620, Cisco 3640
Enterprise Standard
Feature SetsEnterprise Plus
Plus
c3620-js-mz, c3640-js-mz
Cisco 3620, Cisco 3640
1 This feature set is offered in the basic feature set.
2 This feature set is offered in the Plus feature set.
CautionCisco IOS images with strong encryption (including, but not limited to, 56-bit data encryption feature sets) are subject to United States government export controls, and have a limited distribution. Images to be installed outside the United States require an export license. Customer orders may be denied or subject to delay due to United States government regulations. Contact your sales representative or distributor for more information, or send e-mail to export@cisco.com.
lists the features and feature sets supported by the Cisco 3600 series in Cisco IOS Release 12.0(3)XG and uses the following conventions:
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Table 4 Feature Lists by Feature Sets for the Cisco 3600 Series
AT/DEC/
FW PlusLayer 2 Tunnel Protocol (L2TP)
(1)
No
Yes
No
No
Yes
Yes
Yes
RIP Enhancements
(1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SNMP version 3
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DLSw+ RSVP
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DLSw+ Enhanced Load Balancing
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DLSw+ Peer Clusters
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Easy IP Phase 2-DHCP Server
(1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Flow Random Early Detection
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
NetFlow Policy Routing
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
OSPF Packet Pacing
(1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Response Time Reporter Enhancements
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Service Provider 1
(3)
No
No
No
No
No
No
No
WCCPv2
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ISDN MIB RFC 2127
(1)
Yes
Yes
Yes
No
Yes
Yes
Yes
1FE2P Network Module
(1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Process MIB
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CLI String Search
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Cisco IOS Firewall Feature Set Platform Support
No
No
Yes
No
No
Yes
No
3DES Support
(2)
No
No
Yes
No
No
No
No
Cisco IOS STP Enhancements
No
Yes
No
No
Yes
Yes
Yes
Voice Over Frame Relay, FRF.11 and FRF.121
No
Yes
No
No
Yes
Yes
Yes
BRI Voice over IP
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Annex-G (X.25 over Frame Relay)
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ATM OC3 NM
(3)
No
Yes
No
No
Yes
Yes
Yes
Cisco IOS IEEE 802.1Q
(1)
No
Yes
No
Yes
Yes
Yes
Yes
Mobile IP
(1)
No
Yes
No
Yes
Yes
Yes
Yes
Modem over ISDN BRI2
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
R2 Signaling
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PPP Over Frame Relay
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Time-Based Access Lists
(1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
VIC-2BRI-S/T-TE
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
X.25 Load Balancing
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
X.25 over ISDN D Channel
(1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1 Added in Cisco IOS Release 12.0(3)XG.
2 Cisco 3640 routers only
New and Changed Information
This section describes a new feature introduced for the Cisco 3600 series in Cisco IOS Release 12.0(3)XG.
Voice over Frame Relay Using FRF.11 and FRF.12
The Voice over Frame Relay (VoFR) capabilities that were introduced on the Cisco MC3810 multiservice access concentrator beginning with IOS Release 11.3 are now extended to the Cisco 3600 series router platforms.
The following additional functionality is supported in Release 12.0(3)XG:
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When VoFR is implemented on a Cisco router, the router can carry voice traffic, such as telephone calls and faxes over a Frame Relay network.
Important Note
This section contains important information about use of your Cisco IOS Release 12.0(3)XG software.
Deprecated MIBs
Older Cisco Management Information Bases (MIBs) will be replaced in a future release. OLD-CISCO-* MIBS are currently being migrated into more scalable MIBs, without affecting existing Cisco IOS products or NMS applications. Application developers should update from deprecated MIBs to the replacement MIBs as shown in the table below.
Caveats
This section contains open caveats for the current Cisco IOS maintenance release only. Caveats describe unexpected behavior or defects in Cisco IOS software releases. The caveats listed below are severity 3, moderately seriouss, with the exception of CSCdm17845, as noted in the description.
For information on caveats in Cisco IOS Release 12.0, refer to the document Caveats for Cisco IOS Release 12.0 that describes caveats affecting all maintenance releases. Because Release 12.0(3)XG is based on Release 12.0, all caveats in Release 12.0 are also in Release 12.0(3)XG.
For information on other caveats that also apply to this release, refer to the Caveats for Cisco IOS Release 12.0 T document. This caveats document lists severity 1 and 2 caveats for Release 12.0 T. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.
Note
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When making a fax call through a permanent connection using either a frf11-trunk or cisco-trunk, some brands of fax machine may report an error at the end of the fax call, even though the fax was transmitted correctly.
The problem is caused by a slightly premature on-hook signal going to the fax machine at the end of the call. This causes the final fax T.30 DCN (disconnect message) to the receiving fax machine to be chopped off.
At this point the transmission of the fax image is complete, but some fax machines may report an error as a result of the missing DCN message. The fax machine continues to operate correctly after this and can receive and send additional fax messages.
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VoIP and VoFR trunking on the analog FXS and FXO voice ports of the Cisco 2600 and Cisco 3600 routers are not supported with ground-start signaling.
In order to use the trunking feature on these ports, loop-start signaling (the default) must be used.
Ground-start signaling works with normal switched VoIP and VoFR calls and with PLAR connections.
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(Severity 2) When fax relay is used on an E&M interface of a Cisco 2600 or 3600 series router, a crash may occur after a fax transmission. (The fax relay feature is enabled by default.)
Workaround: Avoid the crash by configuring fax-rate disable on the network dial-peers (VoIP or VoFR). Note that you must configure this command at both ends of the connection. Doing so disables the fax relay feature. Configuring fax-rate disable may prevent successful fax transmission through the network.
Related Documentation
The following sections describe the documentation available for the Cisco 3600 series. Typically, these documents consist of hardware installation guides, software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.
Documentation is available as printed manuals or electronic documents, except for feature modules, which are only available online.
You can find the most up-to-date documentation on CCO and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hardcopy documents were printed.
Use these release notes in conjunction with the documents listed in the following sections:
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Release-Specific Documents
The following documents are specific to Cisco IOS Releases 12.0 T and 12.0, on which Release 12.0(3)XG is based. They are located on CCO and the Documentation CD-ROM:
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To reach the cross-platform Release Notes for Cisco IOS Release 12.0 on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes: Cross-Platform Release Notes
To reach the cross-platform Release Notes for Cisco IOS Release 12.0 on the Documentation CD-ROM, follow this path:
Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes: Cross-Platform Release Notes
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To access these documents on CCO, select Technical Documents under the Service & Support heading.
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As a supplement to the caveats listed in the "Caveats" section in these release notes, see the Caveats for Cisco IOS Release 12.0 T document that contains caveats applicable to all platforms for all maintenance releases of Release 12.0 T. Caveats for Release 12.0(3)T apply to Release 12.0(3)XG.
To reach the caveats document on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Caveats: Caveats for Cisco IOS Release 12.0 T
To reach the caveats document on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS 12.0: Caveats: Caveats for Cisco IOS Release 12.0 T
Note
Platform-Specific Documents
The documents listed below are available for the Cisco 3600 series routers. These documents are also available online at Cisco Connection Online (CCO) and on the Documentation CD-ROM.
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To access Cisco 3600 series documentation on CCO, follow this path:
Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 3600 Series Routers
To access Cisco 3600 series documentation on the Documentation CD-ROM, follow this path:
Access Servers and Access Routers: Modular Access Routers: Cisco 3600 Series Routers
Feature Modules
Feature modules describe new features supported by Cisco IOS Release 12.0 T, 12.0(3)XG, and other ED releases and are updates to the Cisco IOS documentation set. They consist of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the features modules are available online only. The feature module information is included in the next printing of the Cisco IOS documentation set.
To reach the feature modules on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: New Feature Documentation
To reach the feature modules on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: New Feature Documentation
Cisco IOS Software Document Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. These documents are shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered the printed versions.
Documentation Modules
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, Cisco IOS software functionality, and comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Each configuration guide can be used in conjunction with its corresponding command reference.
To reach these documents on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References
To reach these documents on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References
Cisco IOS Release 12.0 Documentation Set
describes the contents of the Cisco IOS Release 12.0 software documentation set. The document set is available in electronic form and also in printed form upon request.
Note
To reach the Cisco IOS documentation set on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0
To reach the Cisco IOS documentation set on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0
Note
Service and Support
For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs that are described in the "Service and Support" section of the information packet shipped with your product. For service and support for a product purchased directly from Cisco, use CCO.
Note
Software Configuration Tips on the Cisco Technical Assistance Center Home Page
If you have a CCO login account you can access the following URL. It contains links and helpful tips on configuring your Cisco products:
http://www.cisco.com/kobayashi/serv_tips.shtml
This URL is subject to change without notice. If it changes, point your web browser to CCO and click on this path: Products & Technologies: Products: Technical Tips.
The following sections are provided from the Technical Tips page:
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Cisco Connection Online
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can reach CCO in the following ways:
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For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Note
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package that ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you read Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
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