Downloads |
Table Of Contents
Release Notes for Cisco AS5800 Universal Access Servers for Cisco IOS Release 12.1 XV
Cisco AS5800 Voice Feature Cards
Determining the Software Version
Upgrading to a New Software Release
Microcode and Modem Code Software
New Hardware and Software Features in Cisco IOS Release 12.1(5) XV3
New Hardware and Software Features in Cisco IOS Release 12.1(5) XV2
New Hardware Features in Cisco IOS Release 12.1(5) XV1
Router Shelf Redundancy for Cisco AS5800
New Software Features in Cisco IOS Release 12.1(5) XV1
New Hardware and Software Features in Cisco IOS Release 12.1(5) XV
Caveat CSCdr91706 and IOS HTTP Vulnerability
Resolved Caveats—Cisco IOS Release 12.1(5) XV4
Open Caveats—Cisco IOS Release 12.1(5) XV3
Resolved Caveats—Cisco IOS Release 12.1(5) XV3
Open Caveats—Release 12.1(5) XV2
Resolved Caveats—Release 12.1(5) XV2
Open Caveats—Release 12.1(5) XV1
Resolved Caveats—Release 12.1(5) XV1
Open and Resolved Caveats—Release 12.1(5) XV
Cisco IOS Software Documentation Set
Cisco IOS Release 12.1 Documentation Set Contents
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for Cisco AS5800 Universal Access Servers for Cisco IOS Release 12.1 XV
February 14, 2002
Cisco IOS Release 12.2(2) XB3
78-12420-01 Rev. E0
These release notes for the Cisco AS5800 universal access servers describe the enhancements provided in Cisco IOS Release 12.1(5) XV3. These release notes are updated as needed.
Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.1 on Cisco.com and the Documentation CD-ROM.
Contents
These release notes describe the following topics:
•
MIBs
•
Introduction
The Cisco AS5800 access server and Cisco 5800 voice gateway are high-density, Voice, Integrated Services Digital Network (ISDN), and modem Wide Area Network (WAN) aggregation systems that provide voice and digital and analog call termination. They are intended to be used as a service provider dial point-of-presence (POP) or centralized enterprise dial gateway. The Cisco AS5800 consists of a dial shelf and one or two router shelves:
•
Note
ISDN calls are terminated onboard the trunk card on High-Level Data Link Control (HDLC) controllers. The E1 trunk, T1 trunk, and the CT3 trunk cards include channel service units (CSUs) and have either 12 E1 ports, 12 T1 ports, or 28 T1 ports (within the CT3 trunk) that can operate as Primary Rate Interfaces (PRIs), inter-machine trunks (IMTs), or channelized interfaces in any combination. The specific trunk card limitations are described in Table 2, Part 1.
Note
•
Note
The AC-input power shelf is an optional component of the Cisco AS5800 and is used to convert AC-input power into DC-output power for the DC-powered Cisco 5814 dial shelf. The AC-input power shelf contains two AC-input power supplies.
The AC-input to DC-output connection supplies -48V DC-output power to the dial shelf power entry modules (PEMs). The PEMs receive the -48V and transmit power to the filter module. Power flows through the filter module to the backplane, where it is distributed to the dial shelf controller card(s) and feature cards.
Cisco AS5800 Voice Feature Cards
The Cisco AS5800 Voice Feature Cards are full-featured voice processing cards. Voice processing capabilities include Voice Activity Detection (VAD), comfort noise generation, adaptive jitter buffering, programmable 16 and 32 ms echo cancellation, programmable frame size, and Dual Tone Multiple Frequency (DTMF) detection and generation. The Cisco AS5800 Voice Feature cards offer industry-leading DSP density and a wide range of VoIP codecs.
Medium-complexity Voice Feature Cards support 336 or 192 sessions per card. The medium-complexity VFCs support only codecs that require 20-MIPS or less per session including G.711, G.729a, and G.726. Their part numbers are DS58-336-MC-VOX and DS58-192-MC-VOX, respectively.
High-complexity Voice Feature Cards support 192 or 92 sessions per card, the high-complexity VFCs support all types of codecs including G.711, G.729a, G.726, G.723.1, G.728 and G.729. Their part numbers are DS58-192VOX and DS58-96VOX, respectively.
For more information on the Cisco AS5800, refer to the Cisco AS5800 Universal Access Server Operations, Administration, Maintenance, and Provisioning Guide.
For information on new features and Cisco IOS commands supported by Cisco IOS Release 12.1(5) XV3, see the "New and Changed Information" section and the "Related Documentation" section.
System Requirements
This section describes the system requirements for Cisco IOS Release 12.1 XV:
•
•
•
Memory Requirements
Table 1 lists memory requirements for the Cisco AS5800.
Table 1 Cisco AS5800 Memory Requirements
Flash
DRAMIP Standard
IP Plus
c5800-p4-mz
16 MB
128 MB
IP Plus
dsc-c5800-mz
8 MB
32 MB 1
1 Cisco IOS Release 12.1(5) XV3 may be used with the older RS7206 (NPE-200 based) router shelf as long as the shelf has 128M of DRAM installed.
Supported Hardware
Cisco IOS Release 12.1(5) XV3 supports the Cisco AS5800:
•
•
•
For detailed descriptions of the new hardware features, see the "New and Changed Information" section. Table 2, Part 1 and Table 2, Part 2 detail the supported interfaces, cards, options, router shelf support, and port adapters.
Table 2, Part 1 Supported Hardware for the Cisco AS5800
12-port T1 or E1 termination card
1- port channelized T3 (CT3) termination card
72-port modem card (HMM)1
144-port modem card (DMM)2
324-port modem card (UPC)
96-port voice card (96VOX)
192-port voice card (192VOX)
192-port medium complexity voice card (192-MC-VOX)
336-port medium complexity voice card (336-MC-VOX)
DS5814 Dial Shelf
Dial Shelf Controller (DSC) card
Two AC-input power supplies
RS7206VXR (NPE-300 based) Router Shelf
RS7206 (NPE-200 based) Router Shelf
With any Cisco AS5800 software image, the maximum hardware configuration with an RS7206 is one CT3 or two T1/E1 trunk cards and three UPCs, five DMMs or 10 HMMs for a maximum of 28 24 T1 / 24 E1 controllers and 720 modems.
If a larger configuration is desired, a second RS7206 router shelf can be configured in split-shelf mode, or a single RS7206 VXR may be used to support up to 1344 modem sessions. Configurations above 1344 modem sessions require two RS7206VXR router shelves in split-shelf mode.
The Cisco AS5800/Voice Gateway can support 672 voice calls per RS7206VXR router shelf. 1344 voice calls require two RS7206VXR router shelves configured in split-shelf mode. RS7206 router shelves do not support voice services.
1 72-port modem card requires 32M DRAM.
2 144-port modem card requires 64M DRAM.
3 High-complexity voice cards (with codecs G.723.1, G.728, or G.729) require greater resources to perform complex coding and decoding that results in Voice-handling capacity reduction. Medium-complexity voice cards (with codecs G.711, G.726, or G.729a) can manage twice the number of Voice channels than high-complexity voice cards can.
Determining the Software Version
To determine the version of Cisco IOS software running on your Cisco AS5800, log in to the Cisco AS5800 and enter the show version EXEC command:
router> show versionCisco Internetwork Operating System SoftwareIOS (tm) 12.1 Software (c5800-p4-mz), Version 12.1(5) XV3, RELEASE SOFTWAREUpgrading to a New Software Release
For general information about upgrading to a new software release, refer to Upgrading the Cisco IOS Software Release in Cisco Routers and Modems located at:
http://www.cisco.com/warp/public/130/upgrade_index.shtml
Microcode and Modem Code Software
Microcode software images are bundled with the system software image. Bundling eliminates the need to store separate microcode images. When the router starts, the system software unpacks the microcode software bundle and loads the proper software on all the interface processor boards.
You could have received a later version of modem code than the one bundled with the Cisco IOS software. The modem code in Flash memory is mapped to the modems. Unless you fully understand how Cisco IOS software uses modem code, it is important to keep the factory configuration.
To obtain the latest Cisco IOS software release compatible with Cisco MICA portware, refer to the Cisco AS5x00 MICA 6-Port and 12-Port Modem Module Portware/Cisco IOS Software Compatibility Matrixes at http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/5300/sw_conf/sw_ports/compmat/mca12prt.htm.
The modem code release notes are on Cisco.com and the Documentation CD-ROM.
On Cisco.com at:
Technical Documents: Access Servers and Access Routers: Access Servers: Cisco AS5800: Configuration Documents for Cisco AS5800: Port Information
On the Documentation CD-ROM at:
Cisco Product Documentation:Access Servers and Access Routers: Access Servers: Cisco AS5800: Configuration Documents for Cisco AS5800: Port Information
Feature Set Tables
The 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.
Caution
New and Changed Information
The following sections list the new hardware and software features supported by the Cisco AS5800 for Cisco IOS Release 12.1(5) XV3.
New Hardware and Software Features in Cisco IOS Release 12.1(5) XV3
No new hardware and software features are supported by the Cisco AS5800 for Cisco IOS Release 12.1(5)XV3.
New Hardware and Software Features in Cisco IOS Release 12.1(5) XV2
No new hardware and software features are supported by the Cisco AS5800 for Cisco IOS Release 12.1(5)XV2.
New Hardware Features in Cisco IOS Release 12.1(5) XV1
The following new hardware features are supported by the Cisco AS5800 for Cisco IOS Release 12.1(5)XV1.
Router Shelf Redundancy for Cisco AS5800
This feature provides router-shelf redundancy by using a second router shelf that automatically takes over the other shelf's resources (dial-shelf cards) if it appears that the other router has died. The failover is disruptive in that there is no attempt to maintain calls that were established on the failing router; the dial-shelf cards controlled by the failing router are restarted under the control of the backup router and hence become available again.
Two router shelves are connected to the same dial-shelf (as in split mode), but with only one router active at a time. Both router shelves are configured for normal mode as opposed to split mode. Each router shelf contains the same configuration, being whatever configuration is appropriate for the full set of cards in the dial shelf. The active router controls all the cards in the dial shelf, while the other router functions purely as a backup. If the active router fails, all dial-shelf cards restart under the control of the backup router, which then functions as the active router.
New Software Features in Cisco IOS Release 12.1(5) XV1
The following new software features are supported by the Cisco AS5800 for Cisco IOS Release 12.1(5) XV1.
Exec VPDN Support
Exec VPDN (Virtual Private Dialup Networks) provides dial-up users with a shell-based login, or exec-login, onto the NAS. The Exec VPDN shell-based login authenticates users in a character mode connection and then Exec VPDN initiates a PPP session and tunnels to a remote home gateway. Exec VPDN addresses the previous login limitation where user sessions tunneled directly to the home gateway via L2TP or L2F could not employ character-mode logins once the PPP session started.
New Hardware and Software Features in Cisco IOS Release 12.1(5) XV
Cisco IOS Release 12.1(5)XV2 does not support the Cisco AS5800.
MIBs
Current MIBs
To download MIB modules, go to the Cisco MIB website on Cisco.com at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
The Cisco AS5800 support the following MIBs:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Important Information
The following section contains important notes about Cisco IOS Release 12.1(5) XV3 that can apply to the Cisco AS5800.
Caveat CSCdr91706 and IOS HTTP Vulnerability
A defect in multiple releases of Cisco IOS software will cause a Cisco router or switch to halt and reload if the IOS HTTP service is enabled, browsing to http://router-ip/anytext?/ is attempted, and the enable password is supplied when requested. This defect can be exploited to produce a denial of service (DoS) attack.
The vulnerability, identified as Cisco caveat CSCdr91706, affects virtually all mainstream Cisco routers and switches running Cisco IOS software releases 12.0 through 12.1, inclusive. This is not the same defect as CSCdr36952.
The vulnerability has been corrected and Cisco is making fixed releases available for free to replace all affected IOS releases. Customers are urged to upgrade to releases that are not vulnerable to this defect as shown in detail below.
This vulnerability can only be exploited if the enable password is known or not set.
You are strongly encouraged to read the complete advisory, which is available at http://www.cisco.com/warp/public/707/ioshttpserverquery-pub.shtml.
Caveats
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 select severity 3 caveats are included in the caveats document.
This section only contains open and resolved caveats for the current Cisco IOS maintenance release.
All caveats in Cisco IOS Release 12.1 and Cisco IOS Release 12.1 T are also in Cisco IOS Release 12.1(5) XV3.
For information on caveats in Cisco IOS Release 12.1 T, see Caveats for Cisco IOS Release12.1 T.
For information on caveats in Cisco IOS Release 12.1, see Caveats for Cisco IOS Release 12.1, which lists severity 1 and 2 caveats and select severity 3 caveats for Cisco IOS Release 12.1 and is located on Cisco.com and the Documentation CD-ROM.
Note
Resolved Caveats—Cisco IOS Release 12.1(5) XV4
All the caveats listed in this section are resolved in Cisco IOS Release 12.1(5) XV3. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
•
An error can occur with management protocol processing. Please use the following URL for further information:
http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903
Open Caveats—Cisco IOS Release 12.1(5) XV3
There are no open caveats specific to Cisco IOS Release 12.1(5) XV3 that require documentation in the release notes.
Resolved Caveats—Cisco IOS Release 12.1(5) XV3
All the caveats listed in this section are resolved in Cisco IOS Release 12.1(5) XV3. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
•
An error can occur with management protocol processing. Please use the following URL for further information:
http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903
Open Caveats—Release 12.1(5) XV2
This section documents possible unexpected behavior by Cisco IOS Release 12.1(5) XV2 and describes only severity 1 and 2 caveats and select severity 3 caveats.
•
On a Cisco AS5800 or Cisco AS5850 access server running Cisco IOS Release 12.1(5) XV2, for V.110 calls, the exec command show isdn status displays the "calltype" field incorrectly as VOICE instead of V.110.
Workaround: Use the show spe exec command to determine the call type for each port.
Resolved Caveats—Release 12.1(5) XV2
All the caveats listed in this section are resolved in Cisco IOS Release 12.1(5) XV2. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
•
Cisco IOS software contains a flaw that permits the successful prediction of TCP Initial Sequence Numbers.
This vulnerability is present in all released versions of Cisco IOS software running on Cisco routers and switches. It only affects the security of TCP connections that originate or terminate on the affected Cisco device itself; it does not apply to TCP traffic forwarded through the affected device in transit between two other hosts.
To remove the vulnerability, Cisco is offering free software upgrades for all affected platforms. The defect is described in DDTS record CSCds04747.
Workarounds are available that limit or deny successful exploitation of the vulnerability by filtering traffic containing forged IP source addresses at the perimeter of a network or directly on individual devices.
This notice will be posted at http://www.cisco.com/warp/public/707/ios-tcp-isn-random-pub.shtml.
This caveat is resolved in Cisco IOS Release 12.1(5) XV2.
•
On a Cisco AS5800 access server running Cisco IOS Release 12.2(0) or 12.1(5)XV, inserting or removing (OIR'ing) a 72-port modem card (HMM) or a 144-port modem card (DMM) causes a router shelf crash.
There is no workaround.
This caveat is resolved in Cisco IOS Release 12.1(5) XV2.
•
A 324-port modem card (UP324) crash on a Cisco AS5800 running Cisco IOS Release 12.1(5)XV1 or 12.1(5)XM results in the router shelf hanging for approximately four minutes, then crashing.
Issuing the hw-module slot x reload on the router shelf to reload a 324-port modem card, has the same effect.
Potentially, any command that reloads a 324-port modem card could have this
effect. This does not occur with 72-port modem cards (HMMs) or the 144-port modem
cards (DMMs).
There is no workaround.
This caveat is resolved in Cisco IOS Release 12.1(5) XV2.
•
On an AS5800 access server running Cisco IOS Release 12.1(5)XV or 12.1(5)XV1 various show modem related commands result in spurious accesses and display incorrect information.
This problem occurs only for 72-port modem cards (HMM) and 144-port modem cards (DMM). It is not configuration dependant and will occur whenever 72-port or 144-port modem cards are installed and various show modem related commands are issued.
The exact list of show modem commands that cause this problem are not known, but includes the following commands:
show modem summary
show mode summary stat
There is no workaround.
This caveat is resolved in Cisco IOS Release 12.1(5) XV2.
Open Caveats—Release 12.1(5) XV1
This section documents possible unexpected behavior by Cisco IOS Release 12.1(5) XV1 and describes only severity 1 and 2 caveats and select severity 3 caveats.
•
On a Cisco AS5800 or Cisco AS5850 access server running Cisco IOS Release 12.1(5) XV1, for V.110 calls, the exec command show isdn status displays the "calltype" field incorrectly as VOICE instead of V.110.
Workaround: Use the show spe exec command to determine the call type for each port.
Resolved Caveats—Release 12.1(5) XV1
All the caveats listed in this section are closed or resolved in Cisco IOS Release 12.1(5) XV1. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
•
Cisco IOS software contains a flaw that permits the successful prediction of TCP Initial Sequence Numbers.
This vulnerability is present in all released versions of Cisco IOS software running on Cisco routers and switches. It only affects the security of TCP connections that originate or terminate on the affected Cisco device itself; it does not apply to TCP traffic forwarded through the affected device in transit between two other hosts.
To remove the vulnerability, Cisco is offering free software upgrades for all affected platforms. The defect is described in DDTS record CSCds04747.
Workarounds are available that limit or deny successful exploitation of the vulnerability by filtering traffic containing forged IP source addresses at the perimeter of a network or directly on individual devices.
This notice will be posted at http://www.cisco.com/warp/public/707/ios-tcp-isn-random-pub.shtml.
This caveat is resolved in Cisco IOS Release 12.1(5)XV1.
Open and Resolved Caveats—Release 12.1(5) XV
Cisco IOS Release 12.1(5) XV does not support the Cisco AS5800.
Related Documentation
The following sections describe the documentation available for the Cisco AS5800. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, and other documents.
Documentation is available as printed manuals or electronic documents.
Use these release notes with these documents:
•
Release-Specific Documents
The following documents are specific to Cisco IOS Release 12.1 and are located on Cisco.com and the Documentation CD-ROM:
•
On Cisco.com at:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.1
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes
•
Technical Documents
•
See Caveats for Cisco IOS Release 12.1 and Caveats for Cisco IOS Release 12.1 T, which contain caveats applicable to all platforms for all maintenance releases of Cisco IOS Release 12.1 and Cisco IOS Release 12.1 T.
On Cisco.com at:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Caveats
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
Note
Platform-Specific Documents
These documents are available for the Cisco AS5800 on Cisco.com and the Documentation CD-ROM:
•
•
•
•
On Cisco.com at:
Technical Documents: Access Servers and Access Routers: Access Servers: Cisco AS5800
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5800
Feature Modules
Feature modules describe new features supported by Cisco IOS Release 12.1(5) XV3 and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, 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.
On Cisco.com at:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation
Feature Navigator
Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image.
Feature Navigator is available 24 hours a day, 7 days a week. To access Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at cdbadmin@cisco.com. If you do not have an account on Cisco.com, go to http://www.cisco.com/register and follow the directions to establish an account.
To use Feature Navigator, you must have a JavaScript-enabled web browser such as Netscape 3.0 or later, or Internet Explorer 4.0 or later. Internet Explorer 4.0 always has JavaScript enabled. To enable JavaScript for Netscape 3.x or Netscape 4.x, follow the instructions provided with the web browser. For Java Script support and enabling instructions for other browsers, check with the browser vendor.
Feature Navigator is updated when major Cisco IOS software releases and technology releases occur. You can access Feature Navigator at the following URL:
http://www.cisco.com/go/fn
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 that 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, and Cisco IOS software functionality, and also contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
On Cisco.com and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set.
On Cisco.com at:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Cisco IOS Release 12.1 Documentation Set Contents
Table 3 describes the contents of the Cisco IOS Release 12.1 software documentation set for the AS5800, which is available in electronic form and in printed form if ordered.
Note
On Cisco.com at:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.1
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1
Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
The most current Cisco documentation is available on the World Wide Web at http://www.cisco.com. Translated documentation can be accessed at http://www.cisco.com/public/countries_languages.shtml.
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
•
http://www.cisco.com/cgi-bin/order/order_root.pl
•
http://www.cisco.com/go/subscription
•
Documentation Feedback
If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:
Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following website:
http://www.cisco.com
Technical Assistance Center
The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.
Contacting TAC by Using the Cisco TAC Website
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:
http://www.cisco.com/tac
P3 and P4 level problems are defined as follows:
•
•
In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.
To register for Cisco.com, go to the following website:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following website:
http://www.cisco.com/tac/caseopen
Contacting TAC by Telephone
If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
•
•
