A10E/A28E/A28F Configuration Guide
By default, the default VLAN on the A10E/A28E is VLAN 1.
By default, the Access VLAN of the Access interface is VLAN 1, and the Native
VLAN of the Trunk interface is VLAN 1.
By default, VLAN 1 is in the list permitted by all interfaces. Use the switchport
access egress-allowed vlan { { all | vlan-list } [ confirm ] | { add | remove } vlan-
list } command to modify the VLAN list allowed to pass by the Access interface.
Use the switchport trunk allowed vlan { { all | vlan-list } [ confirm ] | { add |
remove } vlan-list } command to modify the VLAN list allowed to pass by the
Trunk interface.
2.2.2 Preparing for configurations
Scenario
Main function of VLAN is to divide logic network segments. There are 2 typical application
modes:
One kind is in small size LAN, one device is carved up to several VLAN, the hosts that
connect to the device are carved up by VLAN. So hosts in the same VLAN can
communicate, but hosts between different VLAN cannot communicate. For example, the
financial department needs to divide from other departments and they cannot access each
other. Generally, the interface to connect host is in Access mode.
The other kind is in bigger LAN or enterprise network, multiple devices connected to
multiple hosts and the devices are concatenated, data packet takes VLAN Tag for
forwarding. Identical VLAN interface of multiple devices can communicate, but hosts
between different VLAN cannot communicate. This mode is used in enterprise that has
many employees and needs a large number of hosts, in the same department but different
position, the hosts in one department can access one another, so customer has to divide
VLANs on multiple devices. Layer 3 devices like router is required if users want to
communicate among different VLAN. The concatenated interfaces among devices are set
in Trunk mode.
When configuring IP address for VLAN, you can associate a Layer 3 interface for it. Each
Layer 3 interface is corresponding to one IP address and one VLAN.
Prerequisite
N/A
2.2.3 Default configurations of VLAN
The default configuration of VLAN is as below.
Active status of static VLAN
Access VLAN of the Access interface
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