Table Of Contents
Release Notes for the Catalyst 2970 Switch
Cisco IOS Release 12.1(14)EA1Creating Clusters with Different Releases of Cisco IOS Software
Determining the Software Version and Feature Set
Determining Which Files to Use
Upgrading a Switch by Using CMS
Upgrading a Switch by Using the CLI
Recovering from a Software Failure
Using Express Setup to Configure a Switch
Configuring the Switch Settings
Verifying Switch IP Address (Optional)
Clearing the Switch IP Address and Configuration
Cisco IOS Limitations and Restrictions
Cluster Limitations and Restrictions
CMS Limitations and Restrictions
Cisco IOS Caveats Resolved in Cisco IOS Release 12.1(14)EA1
Cisco CMS Caveats Resolved in Cisco IOS Release 12.1(14)EA1
Obtaining Technical Assistance
Obtaining Additional Publications and Information
Release Notes for the Catalyst 2970 Switch
Cisco IOS Release 12.1(14)EA1
July 2003
The Cisco IOS Release 12.1(14)AX runs on all Catalyst 2970 switches.
These release notes include important information about this Cisco IOS release and any limitations, restrictions, and caveats that apply to it. Verify that these release notes are correct for your switch:
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If you are installing a new switch, refer to the Cisco IOS release label on the rear panel of your switch.
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For the complete list of Catalyst 2970 switch documentation, see the "Related Documentation" section.
You can download the switch software from these sites:
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(for registered Cisco.com users with a login password)
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(for nonregistered Cisco.com users)
This software release is part of a special release of Cisco IOS software that is not released on the same 8-week maintenance cycle that is used for other platforms. As maintenance releases and future software releases become available, they will be posted to Cisco.com (previously Cisco Connection Online [CCO]) in the Cisco IOS software area.
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Contents
This information is in the release notes:
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System Requirements
These are the system requirements for this software release:
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Hardware Supported
Table 1 lists the hardware supported by this software release.
Table 1 Supported Hardware
Catalyst 2970G-24T
24 10/100/1000 Ethernet ports
Redundant power systems
Cisco RPS 300 Redundant Power System
Cisco RPS 675 Redundant Power System
Software Compatibility
For information about the recommended platforms for web-based management, operating systems and browser support, Java plug-in guidelines and installation procedures, refer to the Catalyst 2970 Switch Hardware Installation Guide.
Creating Clusters with Different Releases of Cisco IOS Software
This section describes how to choose command and standby command switches when a cluster consists of a mixture of Catalyst switches. The command switch must be the same type as the standby command switch. The Catalyst 2970 switch can be part of a cluster as a standalone switch.
If your cluster has Catalyst 2970, Catalyst 3550, Catalyst 2950, Catalyst 2900 XL, and Catalyst 3500 XL switches, the Catalyst 3550 switch (with the latest software release) should be the command switch.
Table 2 lists the cluster capabilities and software versions for the switches. The switches are listed in the order of highest to lowest end switch. A lower-end switch cannot be the command switch of a switch listed above it in the table (for example, a Catalyst 2950 switch cannot be the command switch of a cluster that has Catalyst 2970 or Catalyst 3550 switches).
Table 2 Switch Software and Cluster Capability
Catalyst 3750
12.1(11)AX
Member or command switch
Catalyst 3550
12.1(4)EA1 or later
Member or command switch
Catalyst 2970
12.1(11)AX
Member or command switch
Catalyst 2950
12.1(5.2)WC(1) or later
Member or command switch
Catalyst 2955
12.1(12c)EA1 or later
Member or command switch
Catalyst 3500 XL
12.0(5.1)XU or later
Member or command switch
Catalyst 2950
12.0(5.2)WC(1) or later
Member or command switch
Catalyst 2900 XL (8-MB switches)
12.0(5.1)XU or later
Member or command switch
Catalyst 2900 XL (4-MB switches)
11.2(8.5)SA6 (recommended)
Member switch only1
Catalyst 1900 and 2820
9.00(-A or -EN) or later
Member switch only
1 Catalyst 2900 XL (4-MB) switches appear in the front-panel and topology views of the Cluster Management Suite (CMS). However, CMS does not support configuration or monitoring of these switches.
Some versions of the Catalyst 2900 XL software do not support clustering, and if you have a cluster with switches that are running different versions of Cisco IOS software, software features added on the latest release might not be reflected on switches running the older versions. For example, if you start Cluster Management Suite (CMS) on a Catalyst 2900 XL switch running Cisco IOS Release 11.2(8)SA6, the windows and functionality can be different from a switch running Cisco IOS Release 12.0(5)WC(1) or later.
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Downloading Software
These are the procedures for downloading software:
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Determining the Software Version and Feature Set
The Cisco IOS image is stored as a .bin file in a directory that is named with the Cisco IOS release. A subdirectory contains the files needed for web management. The image is stored on the system board Flash device (flash:).
You can use the show version privileged EXEC command to see the software version that is running on your switch. The second line displays C2970-I6L2-M.
Determining Which Files to Use
The upgrade procedures in these release notes describe how to perform the upgrade by using a combined .tar file. This file contains both the Cisco IOS image file and the files needed for the CMS. You must use the combined .tar file to upgrade the switch through the CMS. To upgrade the switch through the CLI, use the .tar file and the archive download-sw privileged EXEC command.
Table 3 lists the software filenames for this software release.
Upgrading a Switch by Using CMS
You can upgrade switch software by using CMS. From the menu bar, select Administration > Software Upgrade. For detailed instructions, click Help.
Upgrading a Switch by Using the CLI
This procedure is for copying the combined .tar file to the Catalyst 2970 switch. You copy the file to the switch from a TFTP server and extract the files. You can download an image file and replace or keep the current image.
To download software, and if necessary, the TFTP server application, follow these steps:
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Step 2
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http://www.cisco.com/kobayashi/sw-center/sw-lan.shtml
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http://www.cisco.com/public/sw-center/sw-lan.shtml
To download the image, select Catalyst 2970 software.
To obtain authorization and to download the crypto software files, select Catalyst 2970 3DES Cryptographic Software.
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For more information, refer to Appendix B in the software configuration guide for this release.
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Switch# ping tftp-server-addressFor more information about assigning an IP address and default gateway to the switch, refer to the software configuration guide for this release.
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archive download-sw /overwrite /reload tftp:[[//location]/directory]/image-name.tarThe /overwrite option overwrites the software image in Flash memory with the downloaded one.
The /reload option reloads the system after downloading the image unless the configuration has been changed and not been saved.
For //location, specify the IP address of the TFTP server.
For /directory/image-name.tar, specify the directory (optional) and the image to download. Directory and image names are case sensitive.
This example shows how to download an image from a TFTP server at 198.30.20.19 and to overwrite the image on the switch:
Switch# archive download-sw /overwrite tftp://198.30.20.19/c2970-i612-tar.121-14.EA1.tarYou can also download the image file from the TFTP server to the switch and keep the current image by replacing the /overwrite option with the /leave-old-sw option.
Recovering from a Software Failure
Switch software can be corrupted during an upgrade, by downloading the wrong file to the switch, and by deleting the image file. In all of these cases, the switch does not pass the power-on self-test (POST), and there is no connectivity. You can use the XMODEM protocol to recover from this failure.
For detailed recovery procedures, refer to the "Troubleshooting" chapter in the software configuration guide for this release.
Installation Notes
You can assign IP information to your switch by using these methods:
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Using Express Setup to Configure a Switch
Express Setup is a browser-based program that you can use to set up and configure the switch. You assign the IP information so that the switch can connect to local routers and the Internet. The IP address is also required if you plan to further configure the switch.
You do not create a username with Express Setup. Express Setup provides the minimum configuration to configure a switch. To create a username for the switch, use the Cluster Management Suite (CMS) or the command-line interface (CLI).
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This section provides a quick step-by-step setup procedure for a standalone switch and includes these steps:
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Caution
Before using Express Setup to configure a switch, refer to the switch hardware installation guide for this information:
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Starting Express Setup
Before starting Express Setup, verify that the switch has passed the power-on self-test (POST). The SYST and STAT LEDs are green if the switch has passed POST. For information about troubleshooting a POST failure, refer to the switch hardware installation guide. You cannot start Express Setup until POST has completed.
Follow these steps to start the Express Setup program:
Step 1
Step 2
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Caution
Figure 1 Starting Express Setup
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Step 4
Caution
Figure 2 Connecting the Switch and PC or Workstation Ethernet Ports
Step 5
Verify that the port status LED on the switch Ethernet port is green.
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Step 7
Figure 3 Entering the IP Address
The Express Setup home page appears, as shown in Figure 4.
Figure 4 Express Setup Home Page
If the Express Setup does not run, or the Express Setup home page does not appear in your browser:
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If not, wait 30 seconds and re-enter 10.0.0.1 and press Enter.
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Re-enter 10.0.0.1 and press Enter.
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If not, reconnect the cable to the Ethernet port on the switch and PC or workstation. Wait 30 seconds before entering 10.0.0.1 in the browser.
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If not, make sure that only the SYST and STAT LEDs are green before pressing the Mode button to begin Express Setup.
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Configuring the Switch Settings
The Management Interface field displays VLAN1-Default. This is the management interface through which you manage the switch and to which you assign IP information.
Follow these steps to configure your switch with Express Setup:
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Step 2
Step 3
Step 4
A gateway (router or dedicated network device) is a system that connects a network on one subnet to one or more networks on a different subnet.
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Step 5
The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive, allows embedded spaces, but does not allow embedded spaces at the beginning or end.
Step 6
You do not enter a username for the switch. After the switch is configured with an IP address, you can use CMS to configure a username.
Step 7
Step 8
Step 9
Step 10
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Step 11
If you enable SNMP, you must enter a community string in either the SNMP Read Community field, the SNMP Write Community field, or both. SNMP community strings authenticate access to MIB objects. Embedded spaces are not allowed in SNMP community strings. If you set the SNMP read community, users can access MIB objects, but cannot modify them. If you set the SNMP write community, users can access and modify MIB objects.
Step 12
After you save your settings, the switch exits Express Setup mode. Your switch is now configured with the new IP address. You can install the switch in your production network.
Verifying Switch IP Address (Optional)
After you have installed the switch in your network, follow these steps to verify the IP address configured on your switch:
Step 1
Step 2
Figure 5 Switch Home Page
Re-Running Express Setup
If you did not click Save at the end of the "Configuring the Switch Settings" section section, you can re-run Express Setup by clicking Express Setup on the Switch home page.
If you have entered a wrong IP address or need to change the IP address of your switch, you can clear the IP address on your switch by following the steps in the "Clearing the Switch IP Address and Configuration" section.
Clearing the Switch IP Address and Configuration
If you have configured a new switch with a wrong IP address, or all the switch LEDs start blinking when you are trying to enter Express Setup mode, you can clear the IP address that is configured on the switch.
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To clear the IP address and the switch configuration information, follow these steps:
Step 1
The switch LEDs begin blinking after about 2 seconds.
Step 2
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Where to Go Next
After you have saved your configuration to the switch, you can install the switch (refer to the switch hardware installation guide) or further configure it (refer to the switch software configuration guide).
New Features
These are the new supported hardware and the new software features provided this release:
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New Hardware Features
For a list of all supported hardware, see the "Hardware Supported" section.
New Software Features
Cisco IOS release 12.1(14)EA1 contains these new features or enhancements:
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For a detailed list of key features for this software release, refer to the Catalyst 2970 Switch Software Configuration Guide.
Limitations and Restrictions
You should review this section before you begin working with the switch. These are known limitations that will not be fixed, and there is not always a workaround. Some features might not work as documented, and some features could be affected by recent changes to the switch hardware or software.
These are the limitations and restrictions:
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Cisco IOS Limitations and Restrictions
These limitations apply to Cisco IOS configuration:
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This problem occurs under these conditions:
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The workaround is to reconfigure the static IP address. (CSCdz11708)
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Cluster Limitations and Restrictions
These limitations apply to cluster configuration:
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(CSCds32517, CSCds44529, CSCds55711, CSCds55787, CSCdt70872)•
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CMS Limitations and Restrictions
These limitations apply to CMS configuration:
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Important Notes
These are the important notes related to this software release:
Cisco IOS Notes
These notes apply to Cisco IOS configuration:
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Cluster Notes
There are no cluster configuration notes to report.
CMS Notes
These notes apply to CMS configuration:
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Resize the browser window again when CMS is not busy.
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The workaround is to remove all the jar_cache*.tmp files from the temporary directory. The path to the directory is different for different operating systems:
Solaris: /var/tmp
Windows NT and Windows 2000: \TEMP
Windows 95 and 98: \Windows\Temp•
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In the Front Panel view, if the switch is running one of the previously listed software releases, the device LEDs do not appear. In the Topology view, if the member is a Long-Reach Ethernet (LRE) switch, the customer premises equipment (CPE) connected to the switch does not appear. The Bandwidth and Link graphs also do not appear in these views.
To view switch information, you need to upgrade the member switch software. For information about upgrading switch software, see the "Downloading Software" section.
Open Caveats
These are the open caveats with possible unexpected activity in this software release:
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Open Cisco IOS Caveats
These are the severity 3 Cisco IOS configuration caveats:
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When multicast VLAN registration (MVR) groups are added or deleted, the receiver port that joined the groups after the addition still receives traffic even after the group is deleted. The correct behavior is that MVR data traffic to the group should stop flowing to the receiver port immediately after the no mvr group ip-address global configuration command is entered.
The workaround is to disable MVR by using the no mvr global configuration command and then to re-enable it by using the mvr command. Add and delete the groups that have problems by using the mvr group ip-address and the no mvr group ip-address global configuration commands.
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When two RSPAN sessions are active at the same time, packets might swap VLAN IDs during periods of very high traffic. Packets with swapped VLAN IDs can be egress spanned on VLAN 1.
There is no workaround.
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On a voice VLAN port with both 802.1X and port security enabled, dynamic secure addresses might not get deleted when the port is changed from multihost mode to single-host mode. This means that addresses learned in the multihost mode are still allowed after changing to single-host mode. This problem occurs under the following conditions:
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The workaround is to disable and then re-enable port security on the port.
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A Catalyst 2970 switch does not work with the User Registration Tool (URT). The PC attempting to connect to the network can log in successfully, but is not allowed to pass traffic after the port is moved to the user VLAN. The MAC address for that device shows BLOCKED.
There is no workaround.
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If an interface on a Catalyst 2970 switch is mapped to queue-set 2, and you disable and then re-enable multilayer QoS globally using the mls qos global configuration command, the interface is no longer mapped to the correct egress queue-set.
The workaround is to reconfigure the interface queue-set by using the no queue-set interface configuration command followed by the queue-set 2 interface configuration command.
Open CMS Caveats
These are the severity 3 CMS configuration caveats:
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CMS fails when a switch is running the crypto software image and the vty lines have been configured to use only secure shell (SSH) using the transport input ssh and line vty 0 15 global configuration commands.
The workaround is to allow SSH and Telnet access through the vty lines by using the transport input ssh telnet and line vty 0 15 global configuration command.
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The Port Settings table displays meaningless information in the columns for interface description and duplex cells. This problem occurs for some of the Catalyst 2820 and Catalyst 1900 switches.
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CMS does not validate configuration values for STP port priority before applying them to the switch. When invalid values are applied, the attempt fails silently without a warning message. This applies to all switches running Cisco IOS Release 12.1 or later.
There is no workaround. Make sure input configuration values are valid.
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CMS does not validate configuration values for STP port path cost before applying them to the switch. When invalid values are applied, the attempt fails silently without a warning message. This applies to all switches running Cisco IOS Release 12.1 or later.
There is no workaround. Make sure input configuration values are valid for the switch type.
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CMS does not validate configuration values for STP bridge parameters before applying them to the switch. When invalid values are applied, the attempt fails silently without a warning message. This applies to all switches running Cisco IOS 12.1 or later.
There is no workaround. Make sure input configuration values are valid.
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The Link Graphs bar chart for Packet Drops & Errors might display erroneous errors for Ethernet interfaces.
The workaround is to use the show interfaces or show interfaces counter privileged EXEC commands command instead.
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Sometimes a switch stack icon disappears from the topology view. This can occur if one of the switch stack members goes down or a switch stack member is disconnected from the stack.
The workaround is to close the CMS browser and launch CMS again.
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When CMS is operating in read-only mode, an error is reported if help is launched from the QoS Graph dialog box.
There is no workaround.
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CMS does not apply shaped bandwidth weights that are invalid. Shaped weights are invalid if the sum of their reciprocals is greater than 1 and the weight of a queue is 0.
There is no workaround.
Resolved Caveats
These are the caveats that have been resolved in this release.
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Cisco IOS Caveats Resolved in Cisco IOS Release 12.1(14)EA1
These Cisco IOS caveats were resolved in Cisco IOS Release 12.1(14)EA1:
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While in the interface-range configuration mode, if you use the no channel-group interface configuration command or change the channel-group mode by using the channel-group command, an assert-fail message with traceback information no longer appears.
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If there is a lot of SNMP polling activity and MAC notification traps being sent on the switch, entering the mac-address-table notification history-size value global configuration command to change the MAC address notification table history size no longer causes the switch to fail.
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When an undefined aggregate policer is configured in a policy-map, the switch no longer generates the wrong aggregate policer for it.
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Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the input queue is full. No authentication is required to process the inbound packet. Processing of IPv4 packets is enabled by default. Devices running only IP version 6 (IPv6) are not affected. A workaround is available.
Cisco has made software available, free of charge, to correct the problem.
This advisory is available at
http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml
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When you are in policy-map class configuration mode and configure an aggregate policer with the police aggregate policy-map class configuration command, causing the number of aggregate policers to exceed 63, the aggregate policer is no longer retained in the policy map.
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An extended access list with permit or forward actions using Layer 4 information no longer incorrectly forwards fragmented packets. All packets are correctly forwarded now.
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You can now set the VTP mode to transparent (3) by using SNMP.
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The switch no longer take several minutes to generate and optimize the forwarding rules after you configure a complex VLAN map. For example, a complex VLAN map might contain multiple sequences that use the same VLAN map ACL, where the individual ACL clauses include one or more deny clauses (nonterminating-not the last deny). During the optimization process, the switch now responds to commands.
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When snooping is disabled and a spanning tree loop exists, incoming IGMP report and leave messages no longer generate a storm of such messages in the network.
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Gigabit Ethernet ports configured for RGMII mode (1/2, 5/6, 9/10, 13/14, 17/18, and 21/22) no longer fail an internal loopback test during system startup.
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A routed port that uses an IP ACL no longer filters packets incorrectly after an administrative shutdown and restart. The problem previously occurred after the following sequence:
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Gigabit Ethernet ports no longer have FCS errors when operating at Gigabit speeds on the Catalyst 2970G-24T, Catalyst 3750G-24T, and Catalyst 3750G-24TS switches.
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The RSPAN feature no longer incorrectly spans all local link control packets with a destination MAC address of 0100.0CCC.CCCC on trunk ports that carry the RSPAN VLAN. Therefore, trunk ports carrying the RSPAN VLAN no longer combine control packets from RSPAN source ports with normal local control packets. The following list describes problems that previously occurred with selected protocols:
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A switch configured for Rapid Spanning-tree (802.1w) no longer sends a Topology Change Notification (TCN) if an interface is reconfigured by using the spanning-tree portfast interface configuration command.
Cisco CMS Caveats Resolved in Cisco IOS Release 12.1(14)EA1
These CMS caveats were resolved in Cisco IOS Release 12.1(14)EA1:
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In the Voice VLAN window, you can now configure a voice VLAN when the VLAN mode is set to dynamic desirable or dynamic auto.
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All Simple Network Management Protocol (SNMP) traps are now shown on the SNMP Trap Managers tab. For example, suppose you click the Administration > SNMP > Trap Managers tab, create a trap manager, click the vlancreate and vlandelete checkboxes along with other traps, and click Apply. When you select the new trap manager entry in the Current Managers list, the vlancreate and vlandelete options are now shown.
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In the Topology View, when you right-click a device in an expanded switch stack to display the Device Properties window, the model number of the stack master no longer shows in all switches.
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From the Users and Passwords window (Administration > Users and Passwords), there is now a provision for enabling or disabling the login for console or vty lines.
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Whenever a given VLAN has multiple router ports associated with it, the IGMP Router tab on the IGMP Report window (Reports > Multicast > IGMP Report) now shows all router ports on a given VLAN.
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When you select the Device > QoS > Policies window and try to modify a policy, you no longer receive a null-pointer exception error that prevents you from modifying the policy. The error previously occurred when the policy uses a class that has an ACL match statement and the ACL was deleted.
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You can now create or modify an EtherChannel when the ports in the EtherChannel do not meet the following requirements:
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The Refresh button of the CMS Inventory Report now updates the System Uptime.
Documentation Updates
These are corrections for the Catalyst 2970 Switch Software Configuration Guide and Catalyst 2970 Switch Command Reference:
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These changes will be included in the next version of the documentation.
Related Documentation
These documents provide complete information about the switch and are available from this Cisco.com site:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2970/index.htm
You can order printed copies of documents with a DOC-xxxxxx= number from the Cisco.com sites and from the telephone numbers listed in the "Obtaining Documentation" section.
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Obtaining Documentation
Cisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems.
Cisco.com
You can access the most current Cisco documentation on the World Wide Web at this URL:
http://www.cisco.com/univercd/home/home.htm
You can access the Cisco website at this URL:
International Cisco websites can be accessed from this URL:
http://www.cisco.com/public/countries_languages.shtml
Documentation CD-ROM
Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which may have shipped with your product. The Documentation CD-ROM is updated regularly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual or quarterly subscription.
Registered Cisco.com users can order a single Documentation CD-ROM (product number DOC-CONDOCCD=) through the Cisco Ordering tool:
http://www.cisco.com/en/US/partner/ordering/ordering_place_order_ordering_tool_launch.html
All users can order monthly or quarterly subscriptions through the online Subscription Store:
http://www.cisco.com/go/subscription
Ordering Documentation
You can find instructions for ordering documentation at this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm
You can order Cisco documentation in these ways:
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http://www.cisco.com/en/US/partner/ordering/index.shtml
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Documentation Feedback
You can submit comments electronically on Cisco.com. On the Cisco Documentation home page, click Feedback at the top of the page.
You can e-mail your comments to bug-doc@cisco.com.
You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address:
Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com, which includes the Cisco Technical Assistance Center (TAC) website, as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from the Cisco TAC website. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC website, including TAC tools and utilities.
Cisco.com
Cisco.com offers a suite of interactive, networked services that let you access Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.
Cisco.com provides a broad range of features and services to help you with these tasks:
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To obtain customized information and service, you can self-register on Cisco.com at this URL:
http://tools.cisco.com/RPF/register/register.do
Technical Assistance Center
The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available: the Cisco TAC website and the Cisco TAC Escalation Center. The type of support that you choose depends on the priority of the problem and the conditions stated in service contracts, when applicable.
We categorize Cisco TAC inquiries according to urgency:
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Cisco TAC Website
The Cisco TAC website provides online documents and tools to help troubleshoot and resolve technical issues with Cisco products and technologies. To access the Cisco TAC website, go to this URL:
All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website require a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:
http://tools.cisco.com/RPF/register/register.do
If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC website, you can open a case online at this URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, we recommend that you open P3 and P4 cases online so that you can fully describe the situation and attach any necessary files.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
Before calling, please check with your network operations center to determine the Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is available from various online and printed sources.
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http://www.cisco.com/en/US/products/index.html
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http://www.cisco.com/go/packet
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http://www.cisco.com/go/iqmagazine
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http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html
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http://www.cisco.com/en/US/learning/le31/learning_recommended_training_list.html
This document is to be used with the documentation listed in the "Related Documentation" section.
Copyright © 2003 Cisco Systems, Inc. All rights reserved.
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