Upgrading Two Controllers In 'Availability' Mode - Siemens SCALANCE WLC711 Maintenance Manual

2 Use the
show upgrade
WLC.siemens.com# show upgrade
1: AC-MV-08.00.00.0123-1.
3 Upgrade the software by running
wish to continue? prompt.
WLC.siemens.com# upgrade ac AC-MV-08.00.00.0123-1.
This command makes a local backup image of the running system and installs the selected upgrade
image.
To avoid typing the image name, you can specify the image using the index returned by the show
upgrade command.
For example, the command below will install the image with index 1 which, in this case, is AC-
MV-08.00.00.0123-1.pfe: upgrade ac 1 bckto local
To Upgrade the Wireless Software Remotely:
4 Set up the FTP server from which you are downloading the file.
upgrade_image_src 192.168.4.10 test abc123 system/images AC-
MV-08.00.00.0123-1.vps
5 Start the upgrade with
This command first makes a local backup image of the running system, downloads the upgrade
image in temporary directory, and installs the image. No local copy of the image exists after the
upgrade.

Upgrading Two Controllers in 'Availability' Mode

This section, which describes how to upgrade two controllers in 'availability' mode, is applicable if the
'availability' pair is made of one of the following combinations:
Table 5: Availability Pairs
Controller 1
WLC711
For the ease of understanding, this section is explained with the help of the following hypothetical
scenario:
•
The upgrade is to be carried out on the two controllers — WLC-1 and WLC-2.
•
Both the controllers are operating in 'availability' mode.
•
Both are running V9.21 release.
•
Each controller has two APs. WLC-1 has AP-1 and AP2, whereas WLC-2 has AP-3 and AP-4.
•
AP-1 and AP-2 are configured as 'Local' on WLC-1 and 'Foreign' on WLC-2.
•
AP-3 and AP-4 are configured as 'Local' on WLC-2 and 'Foreign' on WLC-1.
The following figure
SCALANCE WLC711 Maintenance Guide
command to confirm the upgrade file was downloaded successfully.
vps
upgrade ac file name
upgrade ac ftp bckto local
depicts the hypothetical upgrade process:
Upgrading the Wireless Convergence Software
Upgrading Two Controllers in 'Availability' Mode
command. Type Yes to the Do you
vps
bckto local
command.
Controller 2
WLC711
39