RackSwitch G8000 Application Guide
52
Chapter 3: VLANs BMD00041, November 2008
NOTE – If a 802.1Q tagged frame is received by a port that has VLAN-tagging disabled and the
port VLAN ID (PVID) is different than the VLAN ID of the packet, then the frame is dropped
at the ingress port.
Figure 3-1 Default VLAN settings
NOTE – The port numbers specified in these illustrations may not directly correspond to the
physical port configuration of your switch model.
When a VLAN is configured, ports are added as members of the VLAN, and the ports are
defined as either tagged or untagged (see Figure 3-2 through Figure 3-5).
The default configuration settings for the G8000 has all ports set as untagged members of
VLAN 1 with all ports configured as PVID = 1. In the default configuration example shown in
Figure 3-1, all incoming packets are assigned to VLAN 1 by the default port VLAN identifier
(PVID =1).
Port 1
DA
SA
Data
CRC
Incoming
untagged
packet
BS45010A
Port 2 Port 3 Port 4 Port 5
VLAN 1
802.1Q Switch
By default:
Key
All ports are assigned PVID = 1
All ports are untagged members of VLAN 1
PVID = 1
Port 6 ...
DA
SA
Data
CRC
Outgoing
untagged packet
(unchanged)
Port 7
