Cisco Wireless Controller upgrade in production environment

Updated: February 10, 2011

1st thing's 1st

You need to have CCO aacount to download the software
Login with your credentials to cisco website
Download the required next version of ios/firmware/bootloader
I required only IOS but having a latest boot loader is recommended.
Ftp access that supports files above 32MB
Direct console access
Console and Web user/pswd, mostly same unless modified, default username/password admin/admin

Strategies

You should not move between major updates of any software in production environment.
If your version of firmware/boot loader is 4.0xxxx, you should not try to move to version 5.xxx.
First cross the .0 barrier for example move to next nearest version number to version 4.0 and before 5.0 for example between 4.1 to 4.9 and then you can update to version 5.0 -5.9 in next step.

This strategy is mostly common in all cisco softwares, especially when you cannot afford risks.

Always check "path to upgrade", it also helps you to move between major updates, but as I said this article is related to upgrading a device in production environment. If you have a testing environment you can make scenarios and test run,but real environment is critical.


Also check primarybootimage and backupbootimage on your cisco via console It is preferred to use console access because during updates controller restarts and you might loose web or related.


Console access is provided via direct serial cable
connect via com1 through hyperterminal with default settings(by pressing default button)

Connectivity


Also console access is preferred as you can see the updates during restart and apply any emergency boot in case anything goes wrong.
To see detailed view execute trace command on device.

By the way and its very important in web interface that when i say download its actually "upload from controller" and "download to our system".
You should go to upload option in web interface. Same holds for console as well.

Since all the steps is being performed via ftp "our connected machine" is called "server" or "ftp server"

Related Categories
Featured Research
  • Baselining Best Practices

    IT must ensure new applications are rolled out quickly, reliably, and without risk, while at the same time guaranteeing performance and availability. Read this VirtualWisdom white paper to find out how to achieve application-aligned infrastructure performance, and more. more

  • Next Generation End User Experience Management: APM

    In an era of new technologies and cloud-based application delivery models, your business success depends on your ability to ensure optimal application performance and quality user experiences at all times. This complimentary white paper from AppNeta will enlighten you to the new frontiers in end user experience management and much more. more

  • Video: Create an Integrated, Collaborative Microsoft Lync Environment

    Consider HP as your Microsoft Lync Solutions provider! more

  • Optimizing Application Delivery to the Network Edge

    Increasingly, the success of business is being tied to the network. The transformation of the network and IT can help organizations deliver and support highly available applications and services while reacting more quickly to changes in the business environment. In this complimentary white paper from IDC, learn how HP can help its customers and partners improve the overall application experience. more

  • Networking Routers Buyer's Guide for SMB & Enterprise

    This buyer's guide presents an overview of leading products on the market today and aims to improve research for companies needing to purchase or upgrade their equipment. more