Release Notes

4. Installation, Upgrade, and Configuration Changes
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upgrading from version 8.1 or earlier of NetSight/Extreme Management Center,
you must perform an intermediate upgrade. For example, if you are upgrading
from NetSight 7.1, you must first upgrade to the latest Extreme Management
Center 8.1 release, then upgrade to the latest Extreme Management Center 8.2 or
8.3 release, then to 8.4.3.
IMPORTANT:
When performing an upgrade, be sure to back up the database prior to
performing the upgrade, and save it to a safe location. Use the Administration
> Backup/Restore tab to perform the backup.
The NetSight Server service may not start after upgrading Extreme
Management Center to version 8.0 on a system on which the Windows
Server 2008 operating system is installed. Restarting Windows corrects this
issue.
l When upgrading the Extreme Management Center server, ExtremeAnalytics engine,
or ExtremeControl engine to version 8.4.3, ensure the DNS server IP address is
correctly configured.
l When upgrading to Extreme Management Center version 8.4.3, if you adjusted the
Extreme Management Center memory settings and want them to be saved on
upgrade, a flag (-DcustomMemory) needs to be added to the
/usr/local/Extreme_Networks/NetSight/services/nsserver.cfg
file.
For example:
-Xms12g -Xmx24g -XX:HeapDumpPath=../../nsdump.hprof -
XX:+HeapDumpOnOutOfMemoryError -XX:MetaspaceSize=128m -
DcustomMemory
l If your network is using ExtremeAnalytics or ExtremeControl engines, Fabric
Manager, or another add-on feature, you must first perform the Extreme
Management Center upgrade to version 8.4.3 and then add the feature.
l If you are running Data Center Manager (DCM), a Mobile Device Management (MDM)
integration, or other ExtremeConnect or Fusion integration with Extreme
Management Center, or are accessing Web Services directly or through
ExtremeConnect, you need to install an Extreme Management Center Advanced
(NMS-ADV) license. Contact your Extreme Networks Representative for information
on obtaining this license.