Technical data

BLADE OS 5.1 Application Guide
BMD00136, November 2009 Chapter 3: VLANs
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Figure 2 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 through Figure 6).
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 2, all
incoming packets are assigned to VLAN 1 by the default port VLAN identifier (PVID =1).
Figure 3 through Figure 6 illustrate generic examples of VLAN tagging. In Figure 3, untagged
incoming packets are assigned directly to VLAN 2 (PVID = 2). Port 5 is configured as a tagged
member of VLAN 2, and port 7 is configured as an untagged member of VLAN 2.
Note – The port assignments in the following figures are not meant to match the G8000.
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