Port-Based Virtual LANs (VLANs) and GVRP
Port-Based Virtual LANs (Static VLANs)
configuration values for the switch. The primary VLAN is the VLAN the switch
uses to run and manage these features and data. In the factory-default config-
uration, the switch designates the default VLAN (DEFAULT_VLAN) as the
primary VLAN. However, to provide more control in your network, you can
designate another VLAN as primary. To summarize, designating a non-default
VLAN as primary means that:
The switch reads DHCP responses on the primary VLAN instead of on the
default VLAN. (This includes such DHCP-resolved parameters as the
TimeP server address, Default TTL, and IP addressing—including the
Gateway IP address—when the switch configuration specifies DHCP as
the source for these values.)
The default VLAN continues to operate as a standard VLAN (except, as
noted above, you cannot delete it or change its VID).
Any ports not specifically assigned to another VLAN will remain assigned
to the Default VLAN, regardless of whether it is the primary VLAN.
Candidates for primary VLAN include any static VLAN currently configured
on the switch. (A dynamic—GVRP-learned—VLAN that has not been con-
verted to a static VLAN cannot be the primary VLAN.) To display the current
primary VLAN, use the CLI show vlan command.
Not e If you configure a non-default VLAN as the primary VLAN, you cannot delete
that VLAN unless you first select a different VLAN to act as primary.
If you manually configure a gateway on the switch, it will ignore any gateway
address received via DHCP or Bootp.
Per-Port Static VLAN Configuration Options
The following figure and table show the options you have for assigning
individual ports to a static VLAN. Note that GVRP, if configured, affects these
options and VLAN behavior on the switch. The display below shows the per-
port VLAN configuration options. Table
11-1 briefly describes these options.
11-7
