3Com 8807 Command Reference Manual page 100

98 C 6: I -U
HAPTER SOLATE
n
n
-V C C
SER LAN ONFIGURATION OMMANDS
You cannot configure VLAN 1 as an isolate-user-VLAN or Secondary VLAN.
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You cannot directly configure isolate-user-VLAN as other types of VLAN than
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common VLAN, such as Secondary VLAN, multicast VLAN, Super VLAN/Sub
VLAN, Guest VLAN and VLAN running L2VPN services. You cannot directly
configure Secondary VLAN as other type of VLAN than common VLAN, such as
isolate-user-VLAN, multicast VLAN, super VLAN/sub VLAN, guest VLAN and
VLAN running L2VPN services.
When you configure common VLAN as isolate-user-VLAN or Secondary VLAN,
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the VLAN cannot contain trunk ports. Otherwise, the configuration will fail.
One isolate-user-vlan can be mapped to up to 64 Secondary VLANs.
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You can configure up to 32 isolate-user-VLANs for the system.
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You can configure up to 1024 Secondary VLANs for the system.
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You cannot configure the same MAC address in the Secondary VLAN
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corresponding to an isolate-user-VLAN.
Example
# Configure VLAN 5 as isolate-user-VLAN.
[3Com-vlan5] isolate-user-vlan enable