Owners manual

Aruba Instant 6.4.0.2-4.1 | User Guide VLAN Configuration | 92
Chapter 7
VLAN Configuration
VLAN configuration is required for networks with more devices and broadcast traffic on a WLAN SSID or wired
profile. Based on the network type and its requirements, you can configure the VLANs for a WLAN SSID or wired
port profile.
For more information on VLANconfiguration for a WLANSSID and wired port profile, see Configuring VLAN Settings
for a WLAN SSID Profile on page 97 and Configuring VLAN for a Wired Profile on page 114.
VLAN Pooling
In a single IAP cluster, a large number of clients can be assigned to the same VLAN. Using the same VLAN for
multiple clients can lead to a high level of broadcasts in the same subnet. To manage the broadcast traffic, you can
partition the network into different subnets and use L3-mobility between those subnets when clients roam. However,
if a large number of clients need to be in the same subnet, you can configure VLAN pooling, in which each client is
randomly assigned a VLAN from a pool of VLANs on the same SSID. Thus, VLAN pooling allows automatic
partitioning of a single broadcast domain of clients into multiple VLANs.
Uplink VLAN Monitoring and Detection on Upstream Devices
If a client connects to an SSID or wired interface with a VLAN that is not allowed on the upstream device, the client
will not be assigned an IP address and thus cannot connect to the Internet. When a client connects to an SSID or a
wired interface with VLANthat is not allowed on the upstream device, the Instant UI now displays the following alert
message:
Figure 32 Uplink VLAN Detection
To resolve this issue, ensure that there is no mismatch in the VLAN configuration.