Page 78 Viewing VLAN Status and Adding VLANs
5 Virtual LAN
On a Layer 2 switch, Virtual LAN (VLAN) support offers some of the benefits of both bridging and rout-
ing. Like a bridge, a VLAN switch forwards traffic based on the Layer 2 header. Like a router, a VLAN
switch partitions the network into logical segments. Partitioning the network provides better administra-
tion, security, and multicast traffic management.
A VLAN is a set of end stations and the switch ports that connect them. Many reasons exist for the log-
ical division, such as department or project membership. The only physical requirement is that the end
station and the port to which it is connected both belong to the same VLAN.
Each VLAN in a network has an associated VLAN ID, which displays in the IEEE 802.1Q tag in the
Layer 2 header of packets transmitted on a VLAN. An end station may omit the tag, or the VLAN por-
tion of the tag, in which case the first switch port to receive the packet may either reject it or insert a tag
using its default VLAN ID. A given port may handle traffic for more than one VLAN, but it can only sup-
port one default VLAN ID.
HPE OfficeConnect 1920S series switches support up to 256 VLANs.
Viewing VLAN Status and Adding VLANs
Use the VLAN Status page to view information on VLANs currently defined on the switch and to add
and edit VLAN information.
To display the VLAN Status page, click VLAN > Configuration in the navigation pane.
Figure 51. VLAN Configuration Page
By default, VLAN 1 is defined on the switch. It is designated as the default VLAN and cannot be modi-
fied or deleted. All ports are members of VLAN 1 by default.
VLAN 1 is also the default management VLAN, which identifies the VLAN that management users
must be a member of. The administrator can configure a different VLAN as the management VLAN.
See Table 2 on page 20 for additional information about the management VLAN.
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