User guide

102 PARAGON II USER GUIDE
Stacking Units
Updating Stacking Units for Failsafe Upgrade Feature
If the boot loader version of your Stacking Unit is older than 0C5, it does not have the failsafe
capability, and you must upgrade it if the failsafe feature is desired. The upgrade of the Stacking
Unit for failsafe capability requires these requisites:
• Keep only one Stacking Unit connected to the Main Switching Unit at one time.
• The Main Switching Unit must be implemented with Paragon II 4.2 firmware or later as
detailed below.
FIRMWARE PART VERSION
Boot loader 0C4 or later
Firmware code 3E5 or later
The major upgrade procedures may vary depending on the situation of your devices. For example,
if the firmware version of your Main Switching Unit is already 3E5, then you can skip STEP 1.
STEP 1: Update the Main Switching Unit’s firmware to 3E5 or later
STEP 2: Keep only one Stacking Unit connected
STEP 3: Update the Stacking Unit’s Firmware
STEP 1: Update the Main Switching Unit’s Firmware to 3E5 or Later
If the Main Switching Unit’s firmware is older than 3E5, you must upgrade it by following the
steps below:
1. Disconnect all Stacking Units, if any, from the Main Switching Unit.
2. Set the Main Switching Unit’s stacking support to 0. See the “Stacking Support” section
under Paragon II Front Panel Display and Controls in Chapter 2 for additional information.
3. Follow the steps described in General Update Procedure in this chapter to start the upgrade.
STEP 2: Keep Only One Stacking Unit Connected
To upgrade the Stacking Unit, only one unit is allowed to connect to the Main Switching Unit. If
there are more than one Stacking Unit or no Stacking Unit connected to the Main Switching Unit,
you must do the following:
1. Power off the Main and Stacking Units.
2. Connect only one Stacking Unit to the Main Switching Unit.
3. Power on the Stacking Unit first.
4. Power on the Main Switching Unit.
5. Set the Main Switching Unit’s stacking support to 1. See the “Stacking Support” section
under Paragon II Front Panel Display and Controls in Chapter 2 for additional information.
6. Set the Stacking Unit ID to 1. See step 6 of Installing the Paragon P2-UMT1664S Stacking
Unit in Chapter 2 for additional information.
7. Power off both units.
8. Power on the Stacking Unit.
9. Power on the Main Switching Unit.
STEP 3: Update the Stacking Unit’s Firmware
Both of the firmware code and boot loader will be updated after the following is done.
1. Make sure the Main Switching Unit is connected, via network, to the PC that will run
Paragon Update.