GE ML1600 - Manual (Page 161)

CHAPTER 10: VLAN CONFIGURING PORT VLANS WITH ENERVISTA SECURE WEB MANAGEMENT SOFTWARE
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 10–9
10.3 Configuring Port VLANs with EnerVista Secure Web Management
Software
10.3.1 Description
Port VLANs are rarely used in networks which use VLANs across multiple switches. Port
VLANs are used when VLANs are setup up on a single switch and connectivity between the
systems on different VLANs is needed; however, the broadcasts and multicasts are isolated
to the specific VLAN.
Either port VLANs or Tag VLAN can be active at any given time on a switch. Only the default
VLAN (VLAN ID = 1) is active as a Tag VLAN as well as a port VLAN.
General steps for using port VLANs are
1. Plan your VLAN strategy and create a map of the logical topology that will
result from configuring VLANs. Include consideration for the interaction
between VLANs.
2. Configure at least one VLAN in addition to the default VLAN.
3. Assign the desired ports to the VLANs
4. Decide on trunking strategy – how will the VLAN information be propagated
from one switch to another and also what VLAN information will be
propagated across.
5. Layer 3 consideration – check to see if the routing between the VLANs is
“working” by pinging stations on different VLANs
Note
You can rename the default VLAN, but you cannot change its VID =1 or delete it from the
switch.
Note Any ports not specifically assigned to another VLAN will remain assigned to the DEFAULT-
VLAN (VID=1).
Note
Changing the number of VLANs supported on the switch requires the changes to be saved
for future use. To eliminate the changes, reboot the switch without saving the changes.