Nortel BCM 4.0 Upgrade Manual page 14

14 Chapter 2 Pre-upgrade activities
• Change (or verify) DHCP subnet names: The BCM 4.0 system supports 4 to 12 characters
for the DHCP subnet name, while BCM 3.6/3.7 supports more than 12 characters. If your
BCM 3.6/3.7 system has multiple DHCP subnet names where the first 12 characters are
identical, you must change one of the subnet names to make it unique - the first 12 characters
of each subnet name must be unique before upgrading. In Unified Manager go to DHCP >
RemoteScope to verify your DHCP subnet names.
If the subnet names in BCM 3.6/3.7 are longer than 12 characters, the first 12 characters are
preserved while the remaining characters are truncated. As a result, it is possible to have two
subnet names that are identical after the upgrade. If there are two identical names after the
upgrade the DHCP Provider Agent removes one of the entries.
• Optional – Obtain BCM Imaging Tool (BIT): If an upgrade failure is encountered and the
system is unrecoverable, the BIT can be used to image the system back to the BCM 3.6/3.7
release level. Then you can restore the previously saved backup (BCM 3.6/3.7 backup) such
that the system returns to its pre-upgrade state. When another maintenance window is found,
you can try the upgrade again. For more information on BIT, refer to the BCM Imaging Tool
User Guide.
• Change administrator password to default value: You must ensure that your BCM system
administrator account, ee_admin, is available and the password is set to the default value,
PlsChgMe!, before performing this upgrade. After you change the password, perform a
system reboot from the Unified Manager menu before you begin the upgrade. If your password
is not changed to default, the upgrade will not proceed and you will be prompted to change the
password at that time.
• Obtain a valid keycode for the upgrade (BCM or SRG): Before beginning the upgrade, you
must ensure that you have a valid keycode for your system. Use KRS to view the existing
features for your site and generate a keycode file for your new BCM 4.0 (or SRG 1.5) system
with the required features. Ensure the features include the upgrade to BCM 4.0 for a BCM 4.0
system and the upgrade to SRG 1.5 for an SRG 1.5 system. Place this keycode file on the
management computer that you are using to perform the upgrade.
BCM 4.0 and SRG 1.5 use a more powerful keycode system, therefore you must generate a
new keycode to upgrade your system to BCM 4.0 (or SRG 1.5). Previous BCM 3.6/3.7 and
SRG 1.0 keycodes do not work for BCM 4.0 (or SRG 1.5).
Keycodes are specific to a release. The upgrade process requires a different keycode for
BCM 3.6, BCM 3.7, and SRG 1.0. For example, you cannot use a BCM 3.7 keycode to
upgrade a BCM 3.6 system to BCM 4.0.
If you obtained a keycode to perform beta testing of the upgrade, you must obtain a new
keycode to run the released version of the upgrade.
For more information on keycodes, see the BCM 4.0 Keycode Installation Guide.
• Disable firewall services: If you are using firewall services on your BCM 3.6/3.7 system,
temporarily disable the firewall until the upgrade has been completed. You will re-enable the
firewall as a post-upgrade task.
• Ensure LAN1 port is active: The LAN1 port on the BCM 3.6/3.7 system must be available
and active. Verify that the LAN 1 LED on the BCM main unit is solid green, or view the Status
LEDs in Unified Manager (Diagnostics > System Status Monitor).
N0060597 N0060597