Express Setup Requirements

This section summarizes the hardware and software requirements for the Windows platform.

For a listing of Express Setup documentation, see New Feature Summary for Cisco IOS Release 15.2(4)EA1.

Hardware

■1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor

■1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)

■16 GB available hard disk space (32-bit) or 20 GB (64-bit)

Software

■PC with Windows 7, or Mac OS 10.6.x

■Web browser (Internet Explorer 9.0, 10.0, and 11.0, or Firefox 32) with JavaScript enabled

■Straight-through or crossover Category 5 or 6 cable

Express Setup verifies the browser version when starting a session, and it does not require a plug-in.

Finding 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 compact flash memory card.

You can use the show version privileged EXEC command to see the software version that is running on your switch. The second line of the display shows the version.

You can also use the dir filesystem : privileged EXEC command to see the directory names of other software images stored in flash memory. For example, use the dir flash: command to display the images in the flash memory.

Deciding Which Files to Use

The upgrade procedures in these release notes describe how to perform an upgrade by using a combined tar file which contains the Cisco IOS image and the files needed for PROFINET GSD, CIP EDS and the Web Device Manager; and, in some cases, the FPGA upgrade files.

To upgrade the switch through the CLI, use the combined tar file and the archive download-sw privileged EXEC command to overwrite the older image completely.

Cisco IOS Software Image Files lists the filenames for this software release.

Archiving Software Images

Before upgrading your switch software, make sure that you archive copies of both your current Cisco IOS release and the Cisco IOS release to which you are upgrading. Keep these archived images until you have upgraded all devices in the network to the new Cisco IOS image and verified that the new Cisco IOS image works properly in your network.

Cisco routinely removes old Cisco IOS versions from Cisco.com. See Product Bulletin 2863 for information:
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps8802/ps6969/ps1835/prod_bulletin0900aecd80281c0e.html

You can copy the bin software image file on the flash memory to the appropriate TFTP directory on a host by using the copy flash: tftp: privileged EXEC command.

Note: Although you can copy any file on the flash memory to the TFTP server, it is time consuming to copy all of the HTML files in the tar file. We recommend that you download the tar file from Cisco.com and archive it on an internal host in your network.

You can also configure the switch as a TFTP server to copy files from one switch to another without using an external TFTP server by using the tftp-server global configuration command.

Upgrading a Switch by Using the CLI

This procedure is for copying the combined tar file to the 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.

Note: Make sure that the compact flash card is in the switch before downloading the software.

To download software, follow these steps:

1. Use Cisco IOS Software Image Files to identify the file that you want to download.

2. Download the software image file. If you have a SMARTNet support contract, go to this URL, and log in to download the appropriate files:

http://software.cisco.com/download/navigator.html

For example, to download the image for an IE 4000 switch, select Products > Switches > Industrial Ethernet Switches > Cisco Industrial Ethernet 4000 Series Switches, then select your switch model. Select IOS Software for Software Type, then select the image you want to download.

3. Copy the image to the appropriate TFTP directory on the workstation, and make sure that the TFTP server is properly configured.

For more information, see the “Assigning the Switch IP Address and Default Gateway” chapter in the applicable document for your switch as listed in Methods for Assigning IP Information.

4. Log into the switch through the console port or a Telnet session.

5. (Optional) Ensure that you have IP connectivity to the TFTP server by entering this privileged EXEC command:

For more information about assigning an IP address and default gateway to the switch, see Methods for Assigning IP Information.

6. Download the image file from the TFTP server to the switch.

If you are installing the same version of software that currently exists on the switch, overwrite the current image by entering this privileged EXEC command:

The command above untars/unzips the file.The system prompts you when it completes successfully.

–The /overwrite option overwrites the software image in flash memory with the downloaded one.

If you specify the command without the /overwrite option, the download algorithm verifies that the new image is not the same as the one on the switch Flash device. If the images are the same, the download does not occur. If the images are different, the old image is deleted, and the new one is downloaded. If there is not enough space to install the new image and keep the current running image, the download process stops, and an error message displays.

–The /reload option reloads the system after downloading the image unless the configuration has been changed and not saved.

–For // location, specify the IP address of the TFTP server. or hostname.

–For / directory / image-name .tar, specify the directory and the image to download. Directory and image names are case sensitive. The directory is for file organization and it is generally a tftpboot/user-ID path.

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:

You 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. If there is not enough space to install the new image and keep the current running image, the download process stops, and an error message displays.

Installation Notes

You can assign IP information to your switch using the methods shown in Methods for Assigning IP Information.

Cisco Bug Search Tool

The Bug Search Tool (BST), which is the online successor to Bug Toolkit, is designed to improve the effectiveness in network risk management and device troubleshooting. The BST allows partners and customers to search for software bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. The tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input.

To view the details of a caveat listed in this document:

1. Access the BST (use your Cisco user ID and password) at https://tools.cisco.com/bugsearch/

2. Enter the bug ID in the Search For: field.

Enabling Logging Alarms for Syslog Messages

The following information is relevant to all IE Switches software releases from Release 12.2(58)SE onward (CSCvg26502).

On IE switches, there is an option to configure temperature alarm levels as noted in the “ Configuring the Switch Alarms: Associating the Temperature Alarms to a Relay ” section within IE Switch Software Configuration Guides.

However, configured alarms do not generate any syslogs until you set Major alarm logging alarm 2 and Minor alarm l ogging alarm 3 for temperature threshold alarms.

IMPORTANT: The logging alarm must be enabled to generate syslog messages.

Hardware Watchdog Reset

The expected behavior on the switch when there is an IOS software problem is for the switch to crash, save the information that helps software engineers debug the crash, and then reload. However, there can be rare occurrences of the switch hanging without crashing. Hangs are very hard to reproduce and even harder to fix because there is no trace of what caused the hang. Following are some of the symptoms when the switch hangs:

■Switch becomes totally unresponsive to the CLI

■Traffic forwarding stops

■LEDs stop blinking

■Switch does not save any crash information

■Switch does not reload

The switch not reloading is a very serious issue, especially for IoT deployments in remote and sometimes hard to reach locations where sending personnel to reload the box is expensive, time consuming, and leads to the system being rendered unusable for that time.

The Hardware Watchdog Reset feature causes the switch to reload if IOS software is unresponsive for a certain period of time (5 minutes). The CPU Hardware Watchdog ensures that the switch reloads if software is hung for whatever reason.

Configuring Hardware Watchdog Reset

This feature is enabled by default. The following CLI command disables and re-enables this feature:

This command requires a reboot to take effect.

The scheduler process-watchdog (software) remains in effect even after this feature is disabled.

Express Setup Enhancements

Express Setup has three options to meet the needs of different installer roles. You select an option based on how long you press the Express Setup button.

■Short press mode—You want to use the existing Express Setup method.

The existing Express Setup behavior has improved failure LED indication.

■Medium press mode—You are installing a switch into an already running environment with certain services available (DHCP) or you want to have the device receive an IP address without using Device Manager.

■Long press mode—You are confident and knowledgeable in the use of Cisco IOS CLI and can configure the switch directly using a console cable.

Express Setup Modes summarizes Express Setup for each mode.

Locate Switch

You can configure Locate Switch using CLI and the Device Manager.

When enabled, Locate Switch causes all possible LEDs to glow ALT_RED and GREEN (LEDs that are in one color blink) once the switch is enabled with a specific time. This performance varies from previous releases (CSCux75707).

The Locate Switch time setting has been changed from <9-255> to <0-255> time in seconds:

Enter the following show command to verify your settings:

The locate-switch command is a volatile command and will not be saved or displayed in running or startup configuration.