GE MULTILINK ML1200 - Manual (Page 175)

CHAPTER 10: VLAN VLAN
MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL 10–13
10.4.3 Example
In the following example, we start with Port VLAN and convert to TAG VLAN. We define
ports 3 through 5 to belong to VLANs 10, 20 and 30 and the rest of the ports belong to the
default VLAN (in this case, VLAN 1). Filtering is enabled on ports 3 to 5. The VLAN setup is
done before devices are plugged into ports 3 to 5 as a result the status of the ports show
the port status as DOWN.
1. A word of caution - when Tag VLAN filtering is enabled, there can be serious
connectivity repercussions - the only way to recover from that it is to reload
the switch without saving the configuration or by modifying the configuration
from the console (serial) port.
2. There can be either Tag VLAN or Port VLAN. Both VLANs cannot co-exit at the
same time.
3. There can only be one default VLAN for the switch. The default is set to VLAN 1
and can be changed to another VLAN. A word of caution on changing the
default VLAN as well - there can be repercussions on management as well as
multicast and other issues.
4. Tag VLAN support VLAN ids from 1 to 4096. VLAN ids more than 2048 are
reserved for specific purposes and it is recommended they not be used.