The SMI image is essentially an L2-only image. The naming conventions for 3550 images begin with either of these: The 3550 is either a Layer 2 (L2) or Layer 3 (元) switch, which depends on the software version and feature set that you install. Understand 3550 Software Image Naming Conventions: SMI and EMI The extraction occurs automatically during the upgrade process. There is no need to manually extract the files in archive. This utility can be WinZip or some other third-party software. tar image, the archive utility that is on your PC saves the file. If you want to manage switches or clusters of switches through a web interface, such as HTML, this file is the only file to download. The upgrade process extracts both the Cisco IOS image and the CMS files from the. If you only want to use the CLI to manage the switch, the. bin file is the Cisco IOS® Software image. There are two types of files or file extensions that you see when you download 3550 software from the LAN Switches section of Downloads - Switches ( registered customers only). Prepare to Upgrade Understand File Extensions. For details on this procedure, complete these steps:Ĭhoose Administration > Software Upgrade. This document does not cover the upgrade procedure that uses Cisco Cluster Management Suite (CMS). The later software release resolves the bug. You want to install a new line card that the current software version does not support.Ī known bug has affected your switch. You want to implement new features in your network that are available in the later software release. Background InformationĪ software image upgrade can be necessary for these reasons: Refer to the Cisco Technical Tips Conventions for more information on document conventions. This document is not restricted to specific software and hardware versions. Go directly to the Software Upgrade Procedure for 3550 Series Switches section of this document. If you already meet the requirements, skip any or all of these topics. If you are not familiar with the topics, see the Prepare to Upgrade section of this document before you attempt the software upgrade. Setup of a TFTP server and backup of the configuration Prerequisites Requirementsīefore you attempt this configuration, ensure that you are familiar with these topics for Catalyst 3550:
This document explains the step-by-step procedure to upgrade the software image on Cisco Catalyst 3550 series switches with use of the command-line interface (CLI).
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