Static Virtual LANs (VLANs)
Static VLAN Operation
Port-Based VLANs Protocol-Based VLANs
Tagged VLAN A port can be a tagged member of any port-based A port can be a tagged member of any protocol-
Membership VLAN. See above. based VLAN. See above.
Routing The switch can internally route IP (IPv4) traffic
If the switch configuration enables IP routing, the
between port-based VLANs and between port-
switch can internally route IPv4 traffic as follows:
based and IPv4 protocol-based VLANs if the switch
• Between multiple IPv4 protocol-based VLANs
configuration enables IP routing.
• Between IPv4 protocol-based VLANs and port-
If the switch is not configured to route traffic
based VLANs.
internally between port-based VLANs, then an
Other protocol-based VLANs require an external
external router must be used to move traffic
router for moving traffic between VLANs.
between VLANs.
Note: NETbeui, SNA, and DEClat are non-routable
protocols. End stations intended to receive traffic in
these protocols must be attached to the same
physical network.
Note: The Series 3400cl and Series 6400cl switches
do not support SNA and DEClat protocol VLANs.
Commands vlan < VID > [ tagged | untagged < [e] port-list >] vlan <
VID > protocol < ipx | ipv4 | ipv6 | arp |
for
appletalk | sna | declat | netbeui >
Configuring
vlan <
VID > [ tagged | untagged < [e] port-list >]
Static VLANs
VLAN Environments
You can configure different VLAN types in any combination. Note that the
default VLAN will always be present. (For more on the default VLAN, refer to
“VLAN Support and the Default VLAN” on page 2-43.)
Table 2-2. VLAN Environments
VLAN Environment Elements
The default VLAN (port-based; In the default VLAN configuration, all ports belong to VLAN
VID of “1”) Only 1 as untagged members.
VLAN 1 is a port-based VLAN, for IPv4 traffic.
Multiple VLAN Environment In addition to the default VLAN, the configuration can include
one or more other port-based VLANs and one or more
protocol VLANs. (The switches covered in this guide allow
up to 256 VLANs of all types.) Using VLAN tagging, ports can
belong to multiple VLANs of all types.
Enabling routing on the switch enables the switch to route
IPv4 traffic between port-based VLANs and between port-
based VLANs and IPv4 protocol VLANs. Routing other types
of traffic between VLANs requires an external router
capable of processing the appropriate protocol(s).
2-7
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