Release Notes for Cisco IOS Release 15.2(8)E
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Table of Contents
Release Notes for Cisco IOS Release 15.2(8)E
New Features in Cisco IOS Release 15.2(8)E
Finding the Software Version and Feature Set
Upgrading a Switch by Using the CLI
Upgrading IOS and FPGA on the Ethernet Switch Module (ESM)
Using the FPGA Upgrade Utility
Release Notes for Cisco IOS Release 15.2(8)E
First Published: April 26, 2021
Cisco IOS Release 15.2(8)E runs on these platforms:
■
Cisco 2500 Series Connected Grid Switches (CGS2520)
■Cisco Connected Grid Ethernet Switch Module (CGR2010 ESM)
■Cisco Embedded Service 2020 Series Switches (ESS2020)
■Cisco Industrial Ethernet 2000 Series Switches (IE2000)
■Cisco Industrial Ethernet 2000U Series Switches (IE2000U)
■Cisco Industrial Ethernet 4000 Series Switches (IE4000)
■Cisco Industrial Ethernet 4010 Series Switches (IE4010)
■Cisco Industrial Ethernet 5000 Series Switches (IE5000)
These release notes include important information about Cisco IOS Release 15.2(8)E and any limitations, restrictions, and caveats that apply to the release. Verify that these release notes are correct for your switch:
■If you are installing a new switch, see the Cisco IOS release label on the rear panel of your switch.
■If your switch is on, use the show version command. See Finding the Software Version and Feature Set.
■If you are upgrading to a new release, see the software upgrade filename for the software version. See Deciding Which Files to Use.
For a complete list of documentation for the platforms associated with this release, see Related Documentation.
You can download the switch software from this site (registered Cisco.com users with a login password):
http://software.cisco.com/download/navigator.html
Note: The documentation set for this product strives to use bias-free language. For purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product.
Conventions
This document uses the following conventions.
Note: Means reader take note. Notes contain helpful suggestions or references to material not covered in the manual.
Caution: Means reader be careful. In this situation, you might perform an action that could result in equipment damage or loss of data.
Warning: IMPORTANT SAFETY INSTRUCTIONS
Means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.
SAVE THESE INSTRUCTIONS
Regulatory: Provided for additional information and to comply with regulatory and customer requirements.
New Features in Cisco IOS Release 15.2(8)E
Device Manager Localization
■Chinese (Traditional) (code: 2052)
■Chinese (Simplified) (code: 1028)
Express Setup Requirements
This section summarizes the hardware and software requirements for the Windows platform.
For a listing of Express Setup documentation, see Methods for Assigning IP Information.
■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)
■PC with Windows 7, Windows 10, or Mac OS 10.6.x
■Web browser (Internet Explorer 10.0 or 11.0, or Firefox 48.x and above) 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.
Upgrading the Switch Software
These are the procedures for downloading software. Before downloading software, read these sections for important information:
■Finding the Software Version and Feature Set
■Upgrading a Switch by Using the CLI
■Upgrading IOS and FPGA on the Ethernet Switch Module (ESM)
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 the upgrade by using a combined tar file. This file contains the Cisco IOS image file and the files needed for the embedded device manager. You must use the combined tar file to upgrade the switch through Express Setup. To upgrade the switch through the command-line interface (CLI), use the tar file and the archive download-sw privileged EXEC command.
Cisco IOS Software Image Files lists the filenames for this software release.
Note: If you download the IP services image and plan to use Layer 3 functionality, you must use the Switch Database Management (SDM) routing template. To determine the currently active template, enter the show sdm prefer privileged EXEC command. If necessary, enter the sdm prefer global configuration command to change the SDM template to a specific template. For example, if the switch uses Layer 3 routing, change the SDM template from the default to the routing template. You must reload the switch for the new template to take effect.
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 2000 switch, select Products > Switches > Industrial Ethernet Switches > Cisco Industrial Ethernet 2000 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.
Upgrading IOS and FPGA on the Ethernet Switch Module (ESM)
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.
To download software, follow these steps:
1. Refer to Deciding Which Files to Use to identify the file that you want to download.
2. Download the software image file. If you have a SMARTnet support contract, go to the URL below and log in to download the appropriate files.
http://software.cisco.com/download/navigator.html
For example, to download the image for a Connected Grid 10-Port Ethernet Switch Module Interface Card, select Products > Cisco Interfaces and Modules > Connected Grid Modules > Connected Grid 10-Port Ethernet Switch Module Interface Card. Select IOS Software for Software Type, then select the image you want to download.
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 listed in Methods for Assigning IP Information.
3. Copy the image to the appropriate TFTP directory on the workstation, and make sure that the TFTP server is properly configured.
4. Log in to the switch through the console port or a Telnet session.
5. (Optional) Ensure that you IP connectivity to the TFTP server by entering this privileged EXEC command:
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.
7. After the download and the untar are complete, power cycle the CGR2010.
Installation Notes
You can assign IP information to your switch using the methods shown in Methods for Assigning IP Information
Documentation Updates
■On all IoT switches: As part of tightening security, enable secret 0, will automatically be converted to authentication type ‘9’ in Cisco IOS release 15.2(7)E3 and later. When ‘Type 9’ encryption is enabled on low-end platforms (CGS2520, IE 2000, and IE 2000U), Device Manager users will experience an approximate delay of two minutes before the Device Manager pages open.
To workaround this issue, Device Manager users on low-end platforms are advised to configure authentication type ‘5’ using the CLI command: enable algorithm-type md5 secret <password>.
■Existing Cisco IOS software checks the SPI flash manufacturer ID before it uses the SPI flash to store the FPGA bitstream. The new SPI Flash component used on the new CGR 2010 Grid Router WAN interface Card (GRWIC) units does not work with old Cisco IOS releases.
To address this issue, a CLI utility is introduced in Cisco IOS Release15.2(8)E that you can use to download any given FPGA bitstream image to SPI flash on the CGR 2010 Grid Router WAN interface Card (GRWIC). This utility allows you to continue to run a qualified old Cisco IOS version on the new GRWIC units, after you run 15.2(8)E and use the utility to manually program the FPGA bitstream matching the old Cisco IOS version. See details on using the utility in the next section.
For information about the CGR 2010, see Cisco Connected Grid Router 2010 Software Configuration Guide.
Using the FPGA Upgrade Utility
Follow these steps to reload a new GRWIC unit with an old Cisco IOS image matching the old FPGA file.
1. Load the 15.2(8)E image on the GRWIC that has the new SPI Flash component.
2. Enter fpga_upgrade flash <filename> to program the new SPI flash of the new GRWIC with the user specified FPGA file at the specified path as shown in the following example:
3. After the FPGA upgrade/downgrade for the old Cisco IOS (the required IOS version) is completed, load the old Cisco IOS as shown in the following example:
Caveats
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/.
Open Caveats
Resolved Caveats
Related Documentation
http://www.cisco.com/c/en/us/support/switches/embedded-service-2020-series-switches/tsd-products-support-series-home.html |
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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.
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