Users Guide

Aruba-Named-UserVLAN 9 String Aruba 14823
In the WebUI
To apply a named VLAN in a user rule, navigate to the WebUI page:
Security > Authentication > User Rules
To apply a named VLAN in a user role, navigate to the WebUI page:
Security > Access Control > User Roles > Add or Edit Role
To apply a named VLAN in a server derivation (server group), navigate to the WebUI page:
Security > Authentication> Servers > Server Group > <server-group_name> >Server Rules
Adding a Bandwidth Contract to the VLAN
Bandwidth contracts on a VLAN can limit broadcast and multicast traffic. ArubaOS includes an internal
exception list to allow broadcast and multicast traffic using the VRRP, LACP, OSPF, PVST, and STP protocols. To
remove per-VLAN bandwidth contract limits on an additional broadcast or multicast protocol, add the MAC
address for that broadcast/multicast protocol to the VLAN Bandwidth Contracts MAC Exception List.
The command in the example below adds the MAC address for CDP (Cisco Discovery Protocol) and VTP (Virtual
Trunking Protocol to the list of protocols that are not limited by VLAN bandwidth contracts.
(host)(config) #vlan-bwcontract-explist mac 01:00:0C:CC:CC:CC
To show entries in the VLAN bandwidth contracts MAC exception list execute the following command:
(host)(config) #show vlan-bwcontract-explist internal
Optimizing VLAN Broadcast and Multicast Traffic
Broadcast and Multicast (BCMC) traffic from APs, remote APs, or distributions terminating on the same VLAN
floods all VLAN member ports. This causes critical bandwidth wastage, especially when the APs are connected
to an L3 cloud where the available bandwidth is limited or expensive. Suppressing the VLAN BCMC traffic to
prevent flooding can result in loss of client connectivity.
To effectively prevent flooding of BCMC traffic on all VLAN member ports, use the bcmc-optimization
parameter under the interface vlan command. This parameter ensures controlled flooding of BCMC traffic
without compromising the client connectivity. This option is disabled by default. You must enable this
parameter for the controlled flooding of BCMC traffic.
If you enable BCMC Optimization on uplink ports, the controller-generated Layer-2 packets will be dropped.
The bcmc-optimization parameter has the following exemptions:
l All DHCP traffic will continue to flood VLAN member ports even if you enable the bcmc-optimization
parameter.
l ARP broadcasts and VRRP (multicast) traffic will still be allowed.
You can configure BCMC optimization using the WebUI or CLI.
In the WebUI
1. Navigate to Configuration > Network > IP.
2. In the IP Interfaces tab, click Edit of the VLAN for configuring BCMC optimization.
3. Select the Enable BCMC check box to enable BCMC Optimization for the selected VLAN.
Dell Networking W-Series ArubaOS 6.4.x | User Guide Network Configuration Parameters | 168