Orion A10E - Table 2-1 Interface Mode and Packet Processing; Figure 2-2 Dividing Vlans

Orion Networks
A10E/A28E/A28F Configuration Guide
2 Ethernet
Orion Networks
41
Figure 2-2 Dividing VLANs
VLAN technique can divide a physical LAN into different broadcast domains logically. Hosts
without intercommunication requirements can be isolated by VLAN and then, improve
network security, reduce broadcast flow and broadcast storm.
The A10E/A28E supports interface-based VLAN division.
The A10E/A28E complies with IEEE 802.1Q standard VLAN and supports 4094 concurrent
VLANs.
Interface mode and packet forwarding
The interface modes of the A10E/A28E include Access mode and Trunk mode. The method of
dealing with packet for the two modes shows as below.
Table 2-1 Interface mode and packet processing
Interface
type
Dealing with ingress packets
Dealing with Egress
packet
Untag packet
Tag packet
Access
Add Access VLAN
Tag for packet.

VLAN ID = Access VLAN ID,
receive the packet

VLAN ID ≠ Access VLAN ID,
discard the packet.

VLAN ID = Access VLAN
ID, remove Tag and transmit
the packet.

The VLAN ID list does not
include the VLAN ID of the
packet, discard the packet.
Trunk
Add Native VLAN
Tag.

Receive the packet if the packet
VLAN ID is included in the permit
passing VLAN ID list.

Discard the packet if the packet
VLAN ID is not included in the
permit passing VLAN ID list.

VLAN ID = Native VLAN
ID, permit passing from
interface, remove Tag and
transmit the packet.

VLAN ID ≠ Native VLAN
ID, permit passing from
interface, transmit the packet
with Tag.