VLAN Manager
EPICenter Concepts and Solutions Guide
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To obtain a license key, use your browser to connect to the license page at http://www.extremenetworks.com/
go/epickey.htm.
You can obtain an evaluation key or a permanent key through this page. You will need
your activation key to obtain a permanent license key. In either case, you will be asked to enter some
information about yourself, and the license key will be sent to you by return e-mail. Follow the
instructions in the EPICenter Installation and Upgrade Note or the EPICenter Release Notes to add this
license to your EPICenter installation.
Second, make sure that access to one or both of these modules has not been disable for your user role in
the Administration applet (go to the User Roles tab in the Admin applet.) Also, verify that these
features have not been globally disabled in the Features area of the Server Properties tab. Note that if
you do not have a valid license for these features, you will not be able to enable them in the Server
Properties area.
Problem: EPICenter log file fills up and rolls over too quickly, overwriting old messages
When the EPICenter log file is full, it “rolls over”— it deletes the oldest entries in the log and writes
them over with the newest entries. In a system that is managing a large number of devices or has a
large volume of traps, the EPICenter log file may fill up and roll over too quickly, reducing your ability
to track down problems in the network.
If this is a persistent problem, the default log file size can be increased. Please call Extreme Networks
technical support for guidance on how to modify EPICenter’s internal parameters to increase the log
size.
EPICenter creates a backup of the log file each time you restart the EPICenter server. It creates a
different backup file each time you restart the server (up to a limit of 20 backup files as of EPICenter
6.0). If you are having problems and want to preserve the backup file without allowing it to be
overwritten, stopping and restarting the EPICenter server will create a backup of the current log file.
VLAN Manager
Problem: Multiple VLANs have the same name.
A VLAN is defined by the name, its tag value, and its protocol filter definition. EPICenter allows
multiple VLANs of the same name if one of the defining characteristics of one VLAN is different from
the other.
Problem: Multiple protocols have the same name.
EPICenter allows multiple protocols of the same name if one of the defining characteristics of one
protocol is different from the other.
Problem: Created a new protocol in VLAN Manager, but the protocol does not appear on any switch.
When a new protocol is created, it is stored in the EPICenter database. EPICenter only creates the
protocol on a switch when the new protocol is used by a VLAN on that switch.
Problem: Can only access one of the IP addresses on a VLAN configured with a secondary IP
address.
EPICenter does not currently support secondary IP addressing for a VLAN.