3Com 4007 Release Note - page 53
Corrected Problems in Release 3.0.5
53
Recommendations
Follow the guidelines listed below for disabling background processes of
Transcend Address Tracker and Enterprise VLAN Manager if you do not
want to have these applications querying your network devices on the
default time interval.
Transcend applications within FR003 UNIX 5.0 update are supported with
software release 3.0.5. Transcend NT 1.2 applications are also supported
by software release 3.0.5.
Guidelines from FR003 TRANSCEND UNIX 5.0 UPDATE
The following known problem reference is from the Functional
Limitations section of the FR003S README file from JANUARY 2000
TRANSCEND UNIX 5.0 UPDATE RELEASE: General NMDww04250.
Some high-availability features from software release 3.0.0 including
MPLA, STP and VRRP, may become unstable when the associated packet
switching devices are polled by Enterprise VLAN Manager, Address
Tracker, and other applications that poll the bridge address MIB tables,
perform a MIB walk of the bridge address table, or use a command line
interface to retrieve bridge address table data.
If applications involving address table polling are run on an active
production network, the SNMP polling can contribute to unexpected
events in the high-availability configuration, such as MPLA links down
and STP topology changes. It is recommended these applications that
involve address table polling be used during initial configuration or during
problem isolation instead of during active, busy network periods. For
more information about this issue, please visit the 3Com Knowledgebase
on the 3Com Web site.
Applications such as Enterprise VLAN Manager and Address Tracker have
background daemons that continue to poll the network even when the
GUI (or front-end) applications are not running. The devices that may be
affected are the Switch 4007, CoreBuilder 9000, CoreBuilder 9400,
CoreBuilder 3500, SuperStack II Switch 9300, and SuperStack II Switch
3900 (all running 3.0.0 software).