IBM RackSwitch G8000 Application Manual page 98

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RackSwitch G8000: Application Guide
Figure 2. Default VLAN settings
802.1Q Switch
Port 1 Port 2
PVID = 1
DA
SA
Incoming
untagged
Data
packet
CRC
Key
By default:
All ports are assigned PVID = 1
All ports are untagged members of VLAN 1
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
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
VLAN 1 by the default port VLAN identifier (PVID =1).
Figure 3 through Figure 6
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.
Figure 3. Port-based VLAN assignment
PVID = 2
Untagged packet
CRC Data SA DA
Before
VLAN 1
Port 3 Port 4 Port 5
CRC
Data
Outgoing
untagged packet
(unchanged)
SA
DA
Figure 2, all incoming packets are assigned to
illustrate generic examples of VLAN tagging. In
Port 1 Port 2
802.1Q Switch
Port 6 Port 7
Port 6 Port 7 ...
BS45010A
Figure 3 through Figure
Figure
Port 3
Tagged member
of VLAN 2
Port 8
Untagged member
of VLAN 2
6).
3,