Allied Telesis AlliedView-EMS 3.10 VLAN MANAGER - Manual (Page 60)

6.13.3 Notes
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An uplink port must be specified to change the VLAN Mode to "Multiple VLAN"
or to "802.1Q Multiple VLAN". Specifying an incorrect port as the uplink port will
cause VLAN Manager to lose connection with the device without any warning.
Exercise caution.
The current firmware version does not allow VLAN Manager to distinguish
Protected VLANs, Mac-based VLANs and standard Port-based VLANs from each
other. As a result, VLAN Manager will display and treat Protected VLANs and
Mac-based VLANs as if they were standard Port-based VLANs. Furthermore,
modifying a Protected VLAN or a Mac-based VLAN will convert that VLAN into a
standard Port-based VLAN.
The current firmware version does not allow the Default VLAN to be modified.
As a result, all VLAN Manager operations involving the Default VLAN will fail.
For 20-character VLAN Names entered via telnet, only the first 19 characters are
registered in VLAN Manager.
For the VLAN Name parameter, the current firmware version allows up to 19
characters to be entered via SNMP and up to 20 characters via telnet. Since VLAN
Manager supports the AT-9400 series via SNMP, the 19-character limit will apply
to all operations involving VLAN Name.
AT-9400 L3 Models: Changing the VLAN Mode parameter setting from 'Multiple
VLAN' or '802.1Q Multiple VLAN' to 'User Configured VLAN' may result in
unpredictable behavior.
Using an SNMPv3 account, adding a VLAN using a name that has been excluded
from the user account's view will result in an error message and the VLAN will
not be added.
Changing the VLAN Mode parameter setting using the currently set VLAN Mode
will result in the error message: "Error: Commit Failed."
Changing the VLAN Mode parameter setting from '802.1Q Multiple VLAN' to a
different mode may result in the error message: "Unable to communicate. Confirm
SNMP settings or login, and if the network is functional." However, VLAN Mode is
still set to the new mode successfully. To prevent this error message from
reappearing, go to File > Properties and increase the Retry Timeout value.
6 Device Support
AlliedView™-EMS 3.10 VLAN Manager User’s Guide Page 60 of 71