Vlan Support; Typical Vlan Configurations - HP WL520 User Manual

vlan support

vlan support vlan support vlan support
Virtual Local Area Networks (VLANs) are logical groupings of network resources. Defined by software settings, VLAN
resources appear (to clients) to be in the same room, no matter where they are attached on the physical LAN segment. They
simplify traffic flow between clients and their frequently-used or restricted resources.
VLANs now extend as far as the access point signal reaches; clients can connect from anywhere in the broadcast area. The
broadcast area is defined by the network name configured for the wireless card on the access point device.
HP WL520 devices are fully VLAN-ready; however, by default VLAN support is disabled. Before enabling VLAN support,
certain network settings should be configured, and network resources such as a VLAN-aware switch, a RADIUS server, and
possibly a DHCP server should be available.
Once enabled, VLANs are used to more conveniently, efficiently, and easily manage your network.
Manage adds, moves, and changes from a single point of contact
Define and monitor groups
Reduce broadcast and multicast traffic to unnecessary destinations
– Improve network performance and reduce latency
Increase security
– Secure network restricts members to resources on their own workgroup
– Clients roam without compromising security

typical vlan configurations

typical vlan configurations typical vlan configurations typical vlan configurations
VLANs collect and distribute data through wireless HP WL520 network interface cards (NIC). An Ethernet port on the access
point typically connects a wireless cell to a wired backbone. They communicate across a VLAN-capable switch that reviews
packet headers and directs traffic to the appropriate ports. On the wired network, a RADIUS server authenticates traffic and a
DHCP server manages IP addresses. Resources like servers and printers may be present, and a hub may include multiple APs,
extending the network over a larger area.
Figure 4-1 Figure 4- - 1 Components of a typical VLAN Components of a typical VLAN
Fi Figure 4-1 gur e 4 1 Components of a typical VLAN Components of a typical VLAN
1. VLAN-enabled access point
2. VLAN-aware switch (IEEE 802.1Q uplink)
3. HP WL520 management via wired host (SNMP, Web interface or CLI)
4. DHCP Server
5. RADIUS Server
6. VLAN 1 (Wireless Card A)
7. VLAN 2 (Wireless Card B)
VLAN Support
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