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May 15, 2000
These release notes describe the features and caveats for the Cisco 6100 Series system Release 2.4.2, which incorporates the features and caveats from Release 2.4.0 and Release 2.4.1.
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Note The Digital Off-Hook (DOH) configuration features are not fully tested or supported on Release 2.4.x hardware (Cisco 6100 or Cisco 6130) or software. DOH will be supported in Release 3.x.x. |
These release notes describe the following topics:
The Cisco 6100 Series digital subscriber line access multiplexer (DSLAM) is a central office (CO) grade multiplexer that offers cost effective, high-speed services to the residential, telecommuter, and business markets. The Cisco 6100 Series system is part of the Cisco leadership architecture that transcends the DSL service profitability barrier.
The Cisco 6100 Series DSLAM:
The individual module software versions (and ROM versions, as applicable) that comprise system part number SF-6100-2.4.2, which is Release 2.4.2, are shown in Table 1.
| Release 2.4.2 Component | Software Version |
|---|---|
System controller (SC) module software | 9651-001-34 |
Network interface (NI) module software | 9601-001-26 |
Subtending host module (STM) software | 9601-005-09 |
CAP ATU-C module software | 9101-001-20 |
DMT-2 ATU-C module software | 9101-003-06 |
STU-C module software | 9101-007-02 |
RDF1 | 9100-003-24 |
| 1RDF = release definition file |
The ViewRunner management software (ViewRunner for Windows or ViewRunner for HP OpenView) Release 2.4.1 is required to fully support the feature set of Cisco 6100 Series system Release 2.4.2.
To determine the module software versions, use the ViewRunner management software.
This section details the compatibility of the following Cisco 6100 Series system elements:
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Note DMT-2 ATU-C modules can only be ordered as spares for a Cisco 6100 chassis. If you are planning on using a Cisco 6100 chassis with DMT-2 ATU-C modules, a Cisco 6100 Thermal NEBS Compliance Retrofit Kit is required. |
The following sections describe the chassis and modules available with the Cisco 6100 Series system and configuration compatibility comparisons.
There are two different chassis available with the Cisco 6100 Series system:
Table 2 shows the configurations in which each of the chassis can be used.
| Chassis | Direct Connect with a PSC Configuration | Direct Connect Without a PSC Configuration | |
|---|---|---|---|
| With a Cisco 6120 | With a Siecor POTS Splitter1 | ||
Yes | Yes3 | Yes | |
Yes | No | No | |
Table 3 shows the configurations where the multiplexer chassis modules can operate.
| Module | Direct Connect with a PSC Configuration | Direct Connect Without a PSC Configuration | Siecor POTS Splitter1 | ||
|---|---|---|---|---|---|
| Cisco 6130 | Cisco 6100 | Cisco 6130 | Cisco 6100 | ||
Dual-port CAP ATU-C2 | No | Yes | No | No | No |
Yes | Yes | Yes | No | Yes | |
No | No | Yes | No | No | |
| 1The Siecor asymmetric digital subscriber line (ADSL) POTS splitter is compatible with the Cisco 6130 in a Direct Connect with a PSC configuration. 2If you install CAP ATU-C modules in the Cisco 6100, you must install all CAP POTS modules in the Cisco 6120. 3The DMT-2 ATU-C module feature support is not available for the Cisco 6100 chassis in Release 2.4.0. 4If you install DMT-2 ATU-C modules in the Cisco 6130, you must install all DMT POTS modules in the POTS splitter chassis. 5Symmetrical digital subscriber line (SDSL) does not support POTS. 6The STU-C module feature support is present in Release 2.4.1 or later. |
Table 4 summarizes the compatibility among Cisco 6100 Series system and ViewRunner management software releases.
| Cisco 6100 Series System Release1,2 | ||||||
|---|---|---|---|---|---|---|
| 2.4.2 | 2.4.1 | 2.4.0 | 2.3.x | 2.2.1/2.2.5 | 2.2.0 | |
| ViewRunner for Windows Release | ||||||
2.4.1 | Yes | Yes | Yes | No | No | No |
2.4.0 | No | No | Yes | No | No | No |
2.3.5 | No | No | No | Yes3 | Yes | Yes |
2.3.0 | No | No | No | No | Yes3 | Yes |
2.2.1 | No | No | No | No | Yes | Yes |
2.2.0 | No | No | No | No | No | Yes |
| ViewRunner for HP OpenView Release | ||||||
2.4.1 | Yes | Yes | Yes | Yes | Yes | Yes |
2.4.0 | No | No | Yes | Yes | Yes | Yes |
2.3.5 | No | No | No | Yes3 | Yes | Yes |
2.3.0 | No | No | No | No | Yes3 | Yes |
2.2.0 | No | No | No | No | No | Yes |
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Note Cisco recommends upgrading the ViewRunner management software as new releases become available. |
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Note If you are currently running the Cisco 6100 Release 2.3.x, you cannot upgrade to the Cisco 6100 Series Release 2.4.x. You can upgrade when the Cisco 6100 Series Release 3.0.0 is available. |
This section describes the new features for the following releases:
There are no new features in Release 2.4.2. Caveat CSCdr26178 is resolved in this release. For more information on this caveat, see the "Resolved Caveats" section.
The following items are new features for Release 2.4.1. For feature details, refer to the Release Notes for the Cisco 6100 Series System Release 2.4.1, which are located on the World Wide Web at http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c6100/relnotes/786726xx.htm
This following items are new features for Release 2.4.0. For feature details, refer to the Release Notes for the Cisco 6100 Series System Release 2.4.0, which are located on the World Wide Web at http://lbj.cisco.com/push_targets1/ucdit/cc/td/doc/product/dsl_prod/c6100/relnotes/78672601.htm
The following limitations and restrictions apply to Release 2.4.1 and Release 2.4.2:
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Note Currently, the Cisco 6100 Series system is Year 2000 compliant. The following URL supplies up-to-date information on Y2K compliance: http://www.cisco.com/warp/public/cc/cisco/mkt/gen/2000/prodlit/cptbl_ov.htm |
There are no important notes for Release 2.4.2.
For important notes for Release 2.4.1, refer to the Release Notes for the Cisco 6100 Series System Release 2.4.1, which are located on the World Wide Web at http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c6100/relnotes/786726xx.htm
The caveats listed in Table 5 are open as of Release 2.4.2.
| DDTS Entry | Description |
|---|---|
CSCdp52726 | SDSL overhead causes 16 kbps lower throughput. Impact: When SDSL is utilized, measured rates will be 16 kbps lower than the trained rate. This only occurs with SDSL. Workaround: There is no workaround. Due to the nature of SDSL, overhead causes the traffic rate to be 16 kbps lower than the trained line rate. |
CSCdp38422 | SDSL Line Cards error upstream frames with NI-1 production proms. Impact: Possible upstream cell loss with SDSL line cards when port combinations 1/3 or 2/4 are used. This problem can only occur with 4-port SDSL line cards when port combinations 1/3 or 2/4 are used for simultaneously passing traffic. The percentage of cell loss measured during testing is approximately .1%, and is small enough that it does not cause perceptible impact to performance during normal operations, even with traffic passing at the highest trained rate. It can only be seen with precise monitoring and counting of packets on both sides of the connection, as would be done in a test environment with a packet generator. Workaround: No workaround is currently available. |
CSCdm81817 | DMT2 various mode, upstream rate combos cause high ES, CB. Impact: Excessively high corrected/uncorrected block ratios and errored second (ES) counts are seen when the following combinations are provisioned for a subscriber -- overhead framing mode-2, 64 Kbps upstream; or overhead framing mode-3, 96 Kbps upstream The high error rates only occur with the overhead framing mode-2, 64 K upstream, or overhead framing mode-3, 96 K upstream combinations. Workaround: Do not provision a subscriber with either of these combinations of overhead framing mode and upstream rate. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm77285 | DMT-2 ATU-C Bit swapping has no effect. Impact: Enabling bit swapping for DMT-2 ATU-C has not effect. This occurs under all circumstances whenever bit swapping is set. Workaround: There is no workaround. Bit swapping is not supported in the current release. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm77282 | DMT2 margins cannot be set lower than 6 dB. Impact: Setting margin for DMT-2 ATU-C lower than 6 does not change the actual setting, which will still be 6 dB. This occurs with any DMT-2 ATU-C margin setting less than 6 dB. Workaround: There is no workaround. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm76074 | DMT 16000, 32000 and 64000 interleave all equal max. Impact: Setting interleave for DMT-2 ATU-C modules to 16000, 32000 or 64000 all results in the maximum interleave setting being used. This will show up on the CPE output as interleave = 64. This occurs whenever any of these interleave settings are utilized. Workaround: There is no workaround. This is the maximum interleave that can currently be obtained with DMT-2 ATU-C in the Cisco 6130. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm69068 | DMT with trellis enable,CB/UB go down, but intermittent high ES Impact: Trellis coding enabled for a subscriber causes the connection to show up with a high ratio of corrected/uncorrected blocks and excessive errored second (ES) counts. This occurs when trellis coding is enabled at both the CO and CPE so that trellis is then active for the connection. Workaround: Do not enable trellis for the subscriber. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm69047 | DMT Setting PSD -43=-52;-46=-40;-49=-40 Impact: Setting the PSD to -46 dB or -49 dB in ViewRunner results in the downstream PSD still being the default of -40 dB. This occurs only with DMT-2. Workaround: There is no workaround. The inability to set PSD lower than -43 dB is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. It is strongly recommended the default PSD of -40 dB be used. |
CSCdm59472 | DMT cannot train at 128 K increment for upstream Impact: When a DMT-2 subscriber is configured for an upstream rate that is an increment of 128 K, such as 128 K, 256 K, and so on, the line card will always attempt to train at 32 K above the configured rate. This only occurs with DMT-2 upstream increments of 128 K. Workaround: There is no workaround to obtain an increment of 128 K. If a 128 K increment is set for a subscriber, during training the line card will always attempt to train at 32 K above the configured rate. For example, if the subscriber is set to 128 K, the line card will attempt training at a 160 K trained rate. Note that adaptive training is used, which allows a subscriber to train even if the provisioned rate cannot be obtained due to line conditions. If line conditions do not allow the 32 K higher rate to be obtained, training will occur at a rate lower than the configured rate. However, upstream training will never occur at rate which has been configured as an increment of 128 K: 128 K, 256 K, 384 K, 512 K, 640 K, 768 K. |
CSCdm52542 | DMT Downstream file transfer perf overly impacted by upstream rt. Impact: When the downstream rate is set much higher than the upstream rate—for example, 1544/96—the data transfer rates will not be as high as would be expected for downstream data transfers. This occurs when upstream rates are set very low relative to downstream rates, and particularly for file transfers that require acknowledgements, such as FTP. Workaround: Do not set very low upstream rates, such as below 256 K, when using high downstream rates. |
CSCdm46110 | DS-3 subtending bandwidth is less than 40.7 Mbps. Impact: When a rate greater than 40.2 Mbps of traffic is sent through the DS3 subtend ports, traffic is sent no faster than 40.2 Mbps. Workaround: None required. This change was needed to keep cells from being lost due to the inability of the subtend ports to handle traffic greater than 40.2 Mbps. |
CSCdm43638 | DMT-2 ATU-C fails to meet T1.413 loop midCSA6-cannot set margin of 3. Impact: When running T1.413 MidCSA 6 loop, the required rate cannot be met. MidCSA 6 requires a margin setting of 3; however, there is no way to set the margin below 6. Although you can set the value below 6 in ViewRunner, the margin will remain at 6. Workaround: There is no workaround. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm41964 | DMT-2 ATU-C module FE Corrected Blocks dont match CPE. Impact: When corrected/uncorrected blocks are checked at the CO side then compared with similar statistics on the CPE side, the values may not necessarily match. Other statistics may also be out of sync. This can occur with any kind of connection. Workaround: There is no workaround. There are slight differences in the manner in which the firmware reports statistics to the CO and the CPE side. The discrepancies are not severe enough to impact accurate reporting of general functionality. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm40771 | Could not login to NI debug mode after creating 1600 PVCs and 1. Impact: Can not login to NI debug mode after creating 1600 PVCs and 1500 transit subscribers. Occurs after creating greater than 1600 subscribers and 1100 transit subscribers. Workaround: There is none. Due to memory limitations, you cannot enter NI debug mode after exceeding this number of subscribers and transit subscribers. The fix is scheduled to be incorporated in the next major release. |
CSCdm36644 | 9000-9350 ft/ -34 dBM/Hz, CPE cannot train. Impact: Setting a subscriber to a PSD setting other than the default value of -40 dB may cause unpredictable results. In particular, a setting of -34 dB will cause the subscriber to continually retrain. Workaround: Leave the subscriber PSD setting at the default of -40 dB. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm35128 | Active Connections causes 100% CPU for 75 secs on 400 Mhz PC. Impact: On a fully-loaded Cisco 6100/6130 chassis, when attempting to show Active Connections in ViewRunner, it takes over one minute before the active connections are displayed. This occurs even on a fast PC, such as a 400 Mhz Pentium. This happens on systems with many line modules. Workaround: There is no workaround. The problem manifests itself in ViewRunner, but is due to the speed at which the information can be reported by the Cisco 6100. |
CSCdm33344 | ATU-C Perf Cmnd - Has no real data. Impact: When viewing "More Parameters" in ViewRunner to see statistics for DMT-2 ATU-C, most of the statistics do not display a value. This is applicable only to DMT-2 ATU-C. Workaround: There is no workaround. The values are not yet available to be reported. This is only an issue with reporting statistics. Operations are not affected. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm28106 | No data is passed when Fastpath is selected for DMT-2 ATU-C. Impact: Applicable only to the DMT-2 ATU-C. When setting latency for the DMT-2 ATU-C, only interleave can be used. Fastpath is not available. If Fast were set, no data would pass. Workaround: The current DMT-2 ATU-C implementation in the 6130 only supports interleave. A setting of 0 interleave should yield the same effective results as using Fastpath. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm23668 | FEC Redundancy bytes has no effect. Impact: When a subscriber is configured for any of the FEC Redundancy bytes values under the DMT-2 ATU-C modem parameters, there is no variation in the trained rate and error correction rate. Workaround: There is no workaround. This problem is due to a limitation with third-party hardware. There is currently no scheduled date from the vendor for resolution of the problem. |
CSCdm21026 | Reseating OC-3 NI generate buffer overflow msg in VR4W. Impact: When an NI is reseated in the chassis, an error message is generated in the ViewRunner log indicating the following: Buffer overflow in the cell buffer on the subtend module
This occurs whenever an NI is reseated. Even though the message refers to a subtend module, one need not be present for this message to appear. Workaround: None required. This is a spurious error message that does not affect operations in any way. |
CSCdm20798 | DMT2 does not accurately report trained/not trained. Impact: When checking in ViewRunner on module status or when viewing Active Connections, a connection may be incorrectly reported as not trained although it actually is. With Active Connections, the problem manifests itself by not listing all actual active connections. Workaround: Refresh status. Due to limitations in how quickly information can be reported, there will be periodic incorrect reporting regarding module connection status. |
CSCdk90117 | Software Upgrade Arch: LR Image transfer in background mode. Impact: The software download process fails because of errors during the TFTP process. The 6100 node is actively running and carrying traffic. ViewRunner indicates that the software upgrade process has terminated because of problems trying to TFTP the image files. The error log should list the image in question. Conditions include:
Workaround: Do not reset the Cisco 6100. Start continuous ping to verify that the network integrity is adequate (fix the network integrity before continuing). Verify that all upgrade files are in the right directory (and all old version files are in place). Verify that the IP address and TFTP paths are correct. Restart software download. |
CSCdk90118 | Software Upgrade Arch: SW version transfer window must be minimal. Impact: The software download process fails because the ViewRunner server does not respond or resets during the software download process. Conditions include:
Workaround: Do not reset the Cisco 6100. Start continuous ping to verify that the network integrity is adequate (fix the network integrity before continuing). Verify that all upgrade files are in the right directory (and all old version files are in place). Verify that the IP address and TFTP paths are correct. Restart software download. |
CSCdk90121 | Software Upgrade Arch: New Image NMS communication Impact: The software download process fails during the restore phase. During this phase, the images are already in the node and the hardware associations have been made. Conditions include:
Workaround: Do not reset the Cisco 6100. Locate the saved configuration file created during the save operation (.nss extension):
Start continuous ping to verify that the network integrity is adequate (fix the network integrity before continuing). Verify that all upgrade files are in the right directory (and all old version files are in place). Verify that the IP address and TFTP paths are correct. Restart software download. |
CSCdk90126 | SW Upgrade Arch: Orphaned Upgrade state information. Impact: The configuration database is too large to have two copies in NVRAM to do the config-restore without NMS intervention during the upgrade. Workaround: There is no workaround. |
CSCdk90127 | SW Upgrade Arch: SW Release update reestablishes data without NMS. Impact: Incomplete data transfer will not be activated until the last SWAP command. Workaround: There is no workaround. |
CSCdk90128 | SW Upgrade Arch: VR should not lock on LR failure. Impact: The software download process fails during the restore phase, the node does not answer pings, and there is no communication between the node and ViewRunner. Workaround: Restore an older version image and use ViewRunner to discover the node and check on the configuration status and database. If the database is not there, perform a restore from the original saved configuration (not the .nss file) and restart the software download. If the database and configuration are there, restart the download. |
CSCdk59039 | If a user is sending debug messages and enters an invalid instance type in the message, the SC can crash. This problem only occurs in a lab debug environment. Impact: There is no impact. This only occurs in a lab debug environment. Workaround: Do not enter a debug message with invalid insttype. |
CSCdk57824 | Downstream RS errors when adjacent modem channel does not respond. Impact: If both channels of an ATU-C central office modem module are trained to customer premise equipment and one channel does not respond, the other channel on the module produces a burst of downstream reed-solomon errors. Workaround: These errors are corrected by the CPE equipment. |
CSCdk57362 | If the system is in Direct Connect mode, the CPE TIMER alarm is not cleared after lock/unlock of the line port. Impact: This only impacts systems in Direct Connect Mode. If a CPE TIMER alarm is raised against a port in Direct Connect Mode, the alarm will not clear until the hour timer has expired. Workaround: The user must wait the whole hour before the alarm is cleared against the line port. |
CSCdk55957 | ATU-C does not give enough margin when trained to a c660. Impact: Lowers performance when using a c660. Workaround: If you want to use this release against a c660, the system administrator should set the downstream margin to 12 to avoid problems, or if this is unacceptable, the system administrator should set the margin setting and analyze it on a case-by-case basis (By analyzing RS Error counters at the CPE.) Upstream margin of 6 should prove sufficient to prevent problems, but the real margin may vary depending on the rate selected. |
CSCdk53848 | Life Line not preserved when POTS splitter module is removed. Impact: When the POTS module is removed, phone service is lost. Workaround: Do not remove the POTS module. |
CSCdk53830 | The counter "Failed Trains due to non-timer enabled CPE" not visible while the system is in Direct Connect Mode. Impact: If the system is in Direct Connect Mode, you not know how many times a line port failed to train because the CPE gear is not timer-enabled. Workaround: There is no workaround. |
CSCdk53806 | Command Line Interface does not show "CPE NOT TIMER ENABLED" alarm text. Impact: When showing the alarms through the Command Line Interface, an alarms appears that shows no textual information about the alarm. The "CPE not Timer Enabled" Alarm is not visible from the Command Line Interface. Workaround: Show the alarms with ViewRunner. |
CSCdk51475 | NI debug command DS3 status (ss all) shows an unexpected m23 format. Impact: No impact. Workaround: There is no workaround. |
CSCdk43208 | Disconnecting tip/ring momentarily causes loss of upstream data Impact: If the tip/ring cable is momentarily removed for under 1 second, the upstream data path does not operate until the modem power is recycled. Workaround: Cycle the power on the CPE equipment. |
CSCdk37403 | If you are using a snmp command line tool or mib browser, the set fails. This is not a problem when using ViewRunner. If the Cisco 6100 is sent a snmp "row create" of a subscriber with the line port of the subscriber included in the set (lrSubscrRowStatus.1=createAndGo; lrSubscrLinePort.1=lrLpLPoolId.2.1.1), the set fails. Impact: This is only an impact if not using ViewRunner. Workaround: Send in the set to separate SNMP PDUs. First send the "row create," and then the Line port for the subscriber. |
CSCdk34684 | CAP ATU-C margin can be lower than specified for 1024 k and 896 k. Impact: After training is completed, the margin may not be as high as specified. Workaround: 1. Provision the line for different rates (such as 1280 for 1024, 960 for 896) 2. Provision the line with an additional 3 dB of downstream margin. |
CSCne02362 | System control IP information becomes corrupted after save or after BOOTP is completed. Impact: Only an installation impact when you use the BOOTP capability. Workaround: Reenter the SC IP address in the boot menu. |
CSCne02176 | When locked, Cisco 6100 modules still respond with alarms when pulled from chassis. Impact: No system impact, unimplemented feature. Workaround: Not required. |
CSCne02002 | On the STM module, the RAI and OCD alarms do not clear when the alarm condition is corrected. Impact: Incorrect alarms. Workaround: No workaround. |
CSCne01970 | Fabric Control does not configure transit VPCs. Impact: No system impact, unimplemented feature. Workaround: Use VCCs only. |
CSCne01912 | DS3 Subtending port does not block data flow upon port or module lock. Unimplemented feature at this time. Impact: Cannot block data by unlocking Subtend port. Workaround: To block the data, pull out the DS3 cable. |
CSCne01854 | Following an NI reset, the following non-fatal events are seen in the event window: FC_SUBTEND_PORT_BUFFER_OVERFLOW INFO FC_SUBTEND_PORT_UTOPIA_ERROR INFO FC_SUBTEND_PORT_INGRESS_ERROR INFO FC_SUBTEND_PORT_INGRESS_2_ERROR INFO FC_SUBTEND_PORT_EGRESS_PARITY INFO Impact: No impact, events are generated at start up and is based on the startup sequence of NI and SHM. Workaround: Not required. |
CSCne01497 | Identical fault message text is provided when NI DS3 C-bit parity detection is asserted and cleared. Impact: The message "Unexpected frame format" is provided in both the asserting and clearing cases. Workaround: Not required. |
The caveats listed in Table 6 are resolved as of Release 2.4.2.
| DDTS Entry | Description |
|---|---|
CSCdr26178 | 4-port STU-C line card does not pass data in an upstream direction even when the ports are trained. |
The CAP ATU-C module references in the Cisco 6100 Direct Connect Installation Guide should be changed to the following product numbers:
CAP-05 ATU-C module—Product number ATUC-2-CAP-DIR-2
The following sections list the central office (CO) and customer premises equipment (CPE) publications that relate to the Cisco DSL product family.
A complete list of all released Cisco 6100 Series system with NI-1 related documentation is available on the World Wide Web at http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c6100/index.htm.
The following ViewRunner management software is used to provision and manage the Cisco 6100 Series system with NI-1. A complete list of all released ViewRunner documentation is available on the Word Wide Web.
The Cisco CPE, also known as the Cisco 600 Series, is part of the Cisco end-to-end DSL product family. CPE comprises modems and routers at the customer site primarily used by home office and corporate LAN personnel. Most CPE uses the Cisco Broadband Operating System (CBOS) as its operating system. CBOS provides a comprehensive command set and web interface that allow you to configure your Cisco CPE modem or router.
A complete list of all released Cisco 600 Series documentation is available on the World Wide Web at http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c600s/index.htm.
The following sections provide sources for obtaining documentation from Cisco Systems.
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.
Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).
Cisco provides Cisco Connection Online (CCO) as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed docs, or by sending mail to Cisco.
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Customers and partners can self-register on CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.
You can access CCO in the following ways:
You can e-mail questions about using CCO to cco-team@cisco.com.
The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.
To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.
To contact by e-mail, use one of the following:
| Language | E-mail Address |
|---|---|
English | tac@cisco.com |
Hanzi (Chinese) | chinese-tac@cisco.com |
Kanji (Japanese) | japan-tac@cisco.com |
Hangul (Korean) | korea-tac@cisco.com |
Spanish | tac@cisco.com |
Thai | thai-tac@cisco.com |
In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
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