Sun Microsystems E25544-02, User Manual

Page: 71 / 90

Configuring VLANs 61
Related Information
■
“VLAN Configuration” on page 61
■
“VLAN Naming Format” on page 61
■
“Configure Static VLANs (Oracle Solaris 10)” on page 62
VLAN Configuration
You can create VLANs according to various criteria, but each VLAN must be
assigned a VLAN tag or VLAN ID (
VID ). The VID is a 12-bit identifier between 1 and
4094 that identifies a unique VLAN. For each network interface (
ixgbe0
,
ixgbe1
,
ixgbe2,
and so on), 4094 possible VLAN IDs can be selected for each port.
Tagging an Ethernet frame requires the addition of a tag header to the frame. The
header is inserted immediately following the destination MAC address and the
source MAC address. The tag header consists of two bytes of Ethernet Tag Protocol
identifier (
TPID , 0x8100) and two bytes of TCP . The TCI consists of a user priority,
the CFI , and the VID.
By default, a single VLAN is configured for every port, which groups all ports into
the same broadcast domain, just as if there were no VLANs at all. This means that
VLAN tagging for the switch port is turned off.
Note –
If you configure a VLAN virtual device for an Ethernet adapter, all traffic
sent or received by that Ethernet adapter must be in VLAN-tagged format.
Related Information
■
“VLAN Overview” on page 58
■
“VLAN Naming Format” on page 61
■
“Configure Static VLANs (Oracle Solaris 10)” on page 62
VLAN Naming Format
When configuring VLANs, use the following naming format, which includes both the
VID and the physical
PPA :