Protocols And Standards; Configuring Basic Vlan Settings - HP FlexFabric 12900 Series Configuration Manual

A VLAN tag includes the following fields:
• TPID—16-bit tag protocol identifier that indicates whether a frame is VLAN-tagged. By default, the
TPID value is 0x8100, indicating that the frame is VLAN-tagged. However, device vendors can set
TPID to different values. For compatibility with neighbor devices, configure the TPID value on the
device to be the same as the neighbor device.
Priority—3-bit long, identifies the 802.1p priority of the frame. For more information, see ACL and
•
QoS Configuration Guide.
CFI—1-bit long canonical format indicator that indicates whether the MAC addresses are
•
encapsulated in the standard format when packets are transmitted across different media.
Available values include:
0 (default)—The MAC addresses are encapsulated in the standard format.
1—The MAC addresses are encapsulated in a non-standard format.
This field is always set to 0 for Ethernet.
VLAN ID—12-bit long, identifies the VLAN that the frame belongs to. The VLAN ID range is 0 to
•
4095. VLAN IDs 0 and 4095 are reserved, and VLAN IDs 1 to 4094 are user configurable.
The way a network device handles an incoming frame depends on whether the frame has a VLAN tag
and the value of the VLAN tag (if any). For more information, see
Ethernet supports encapsulation formats Ethernet II, 802.3/802.2 LLC, 802.3/802.2 SNAP, and 802.3
raw. The Ethernet II encapsulation format is used here. For how the VLAN tag fields are added to frames
encapsulated in the other formats for VLAN identification, see related protocols and standards.
For a frame with multiple VLAN tags, the device handles it according to its outer-most VLAN tag and
transmits its inner VLAN tags as the payload.

Protocols and standards

IEEE 802.1Q, IEEE Standard for Local and Metropolitan Area Networks: Virtual Bridged Local Area
Networks

Configuring basic VLAN settings

Step
1. Enter system view.
2. (Optional.) Create a
VLAN and enter its view,
or create a list of VLANs.
3. Enter VLAN view.
4. Configure a name for
the VLAN.
Command
system-view
vlan { vlan-id1 [ to vlan-id2 ] |
all }
vlan vlan-id
name text
125
"Introduction to port-based
Remarks
N/A
By default, only the system default VLAN
(VLAN 1) exists.
To configure a VLAN after you create a list
of VLANs, you must perform this step.
By default, the name of a VLAN is VLAN
vlan-id. The vlan-id argument specifies the
VLAN ID in a four-digit format. If the VLAN
ID has fewer than four digits, leading zeros
are added. For example, the name of
VLAN 100 is VLAN 0100.
VLAN."