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Configuring the Switch
Port-Based Virtual LANs (VLANs)
Configuring the Switch
HP Router Requirements. Use the Hewlett-Packard version A.09.70 (or
later) router OS release if any of the following Hewlett-Packard routers are
installed in networks in which you will be using VLANs:
HP Router 440 (formerly Router ER)
HP Router 470 (formerly Router LR)
HP Router 480 (formerly Router BR)
HP Router 650
Release A.09.70 (or later) is available electronically through the HP BBS
service and the World Wide Web. Refer to the Customer Support/Warranty
booklet shipped with the switch.
Symptoms of Duplicate MAC Addresses in VLAN
Environments
There are no definitive events or statistics to indicate the presence of duplicate
MAC addresses in a VLAN environment. However, one symptom that may
occur is that the duplicate MAC address can be seen in the Port Address Table
for more than one port. You can do a search for the suspected MAC address
in the switch’s address table and if there is a duplicate MAC address problem,
the address will be found in the table associated with one port at one moment,
and then later associated with a different port.