Recommendations; Interaction With Transcend Enterprise Vlan Manager - 3Com 4007 Release Note

Recommendations

Interaction with
Transcend Enterprise
VLAN Manager
If you select the
agingOnly
the
stpForwardDelay
This will ensure that addresses flush as quickly as possible.
If you are using Transcend Enterprise VLAN Manager on your network but
are not running STP on your module, 3Com recommends that you select
the option.
agingOnly
The option in Release 3.0.5 is especially helpful if you use
agingOnly
3Com Transcend Enterprise VLAN Manager software because it helps to
prevent incorrect MAC address-based VLAN assignments.
Prior to Release 3.0.5, if you did not have STP enabled, a Layer 2 module
would not flush MAC addresses upon a link down event. It would only
age addresses according to the value set in
situation can cause VLAN-assignment problems when endstations are
frequently plugged and unplugged into ports on the module and the
Transcend Enterprise VLAN Manager (EVM) application is used on the
network. That is, if a new endstation (with a new MAC address) is
plugged into a port prior to the aging out of the old MAC address on that
port, EVM may assign the endstation to the VLAN to which the old MAC
address belonged, which could be an incorrect VLAN for the new
endstation.
In summary, prior to Release 3.0.5, if you wanted addresses to age more
quickly after a link down event, you would have to enable STP. Now, with
the option, you do not have to do that.
agingOnly
Accelerated Address Aging
option, 3Com recommends that you also set
value to the lowest number in the allowed range.
. This
bridge agingTime
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