3Com 4007, Implementation Manual, Page: 249 / 684

Key Concepts 249
Terminology Review the following terms:
■
Default VLAN — The predefined port-based VLAN interface on all
switch fabric module ports and the ports of each switching module
that always uses
■
VID 1
■
Protocol type unspecified (for Multilayer Switching Modules)
■
The name Default
The default VLAN also initially includes all of the bridge ports without
any tagging, but you can modify the bridge ports and tag status of the
default VLAN. See “The Default VLAN” for more detailed information.
■
VLAN origin — Whether the VLAN was created in one of the
following ways:
■
Statically — The VLAN display shows an origin of
static
if you
define the VLAN.
■
Dynamically — The VLAN display shows an origin of
GVRP
if the
system learned the VLAN dynamically through GVRP.
■
Router — The VLAN display shows an origin of
router
if you have
defined a router port IP interface on a single bridge port. When
you define a router port IP interface, you must place the system in
allClosed mode. This setting removes any allOpen VLANs and
re-creates the default VLAN. See Chapter 16 for more information
on defining router port IP interfaces.
■
Protocol suite — On Multilayer Switching Modules, the protocol
family that is associated with a protocol-based or network-based
VLAN. The protocol suite is
unspecified
for the default VLAN and all
port-based VLANs.
■
Layer 3 address — On Multilayer Switching Modules, the network or
subnetwork address that is associated with a network-based IP VLAN.
■
Port membership — The bridge ports that you assign to be part of
the VLAN. If you have created trunks, you must specify the anchor
port (lowest-numbered) port in the trunk when you define the VLAN.
All bridge ports are initially part of the default VLAN on each module.
See Chapter 12.