LevelOne GSW-1676, Руководство пользователя

Страница: 86 / 150

C
ONFIGURING THE
S
WITCH
6-38
Configuring VLAN Groups
The 802.1Q VLAN Configuration page allows you to create and delete
VLANs (Virtual LANs), and set up or modify VLAN group members.
Introduction to VLANs
VLANs are logical partitions of the physical LAN. You can use VLANs to
increase network performance or improve internal network security.
If the network has adequate performance and security for your current
needs, it is recommended that you leave the VLAN settings in the default
configuration. The default configuration is as follows:
• All ports are members of VLAN 1
• The switch management interface is on VLAN 1
• All ports have a Port VLAN ID (PVID) of 1
• All ports can send and receive both VLAN-tagged and untagged packets
(that is, they are hybrid ports)
In the default configuration, any port is able to send traffic to any other
port and a PC connected to any port will be able to access the
management interface. Broadcast traffic, for example, will be flooded to all
ports on the switch.
The VLAN parameters that can be configured for each port on the switch
include VLAN Aware Enabled, Ingress Filtering Enabled, QinQ Enabled,
Packet Type, and PVID. Note that the ports within a trunk cannot be
configured individually; configure the static trunk instead (trunks are
labelled T1 to T8). Also, note that the VLAN parameters of a dynamic link
aggregation group formed through LACP cannot be configured. The port
members of a dynamic link aggregation group must be configured prior to
setting up the group.
IEEE 802.1Q Tunneling (QinQ) is designed for service providers carrying
traffic for multiple customers across their networks. QinQ tunneling is
used to maintain customer-specific VLAN configurations even when