Users Guide

169 | Network Configuration Parameters Dell Networking W-Series ArubaOS 6.4.x| User Guide
Figure 14 Enable BCMC Optimization
In the CLI
(host)(config) #interface vlan 1
(host)(config-subif)#bcmc-optimization
(host)(config-subif)#show interface vlan 1
Configuring Ports
Both Fast Ethernet and Gigabit Ethernet ports can be set to access or trunk mode. A port is in access mode
enabled by default and carries traffic only for the VLAN to which it is assigned. In trunk mode, a port can carry
traffic for multiple VLANs.
For a trunk port, specify whether the port will carry traffic for all VLANs configured on the controller or for
specific VLANs only. You can also specify the native VLAN for the port. A trunk port uses 802.1q tags to mark
frames for specific VLANs, However, frames on a native VLAN are not tagged.
Classifying Traffic as Trusted or Untrusted
You can classify wired traffic based not only on the incoming physical port and channel configuration, but also
on the VLAN associated with the port and channel.
About Trusted and Untrusted Physical Ports
Physical ports on the controller are trusted and usually connected to internal networks by default, while
untrusted ports connect to third-party APs, public areas, or other networks to which you can apply access
controls. When you define a physical port as untrusted, traffic passing through that port needs to go through a
predefined access control list policy.
About Trusted and Untrusted VLANs
You can also classify traffic as trusted or untrusted based on the VLAN interface and port or channel. This
means that wired traffic on the incoming port is trusted only when the port’s associated VLAN is also trusted;
otherwise the traffic is untrusted. When a port and its associated VLANs are untrusted, any incoming and
outgoing traffic must pass through a predefined ACL. For example, this setup is useful if your company
provides wired user guest access, and you want guest user traffic to pass through an ACL to connect to a
captive portal.
You can set a range of VLANs as trusted or untrusted in trunk mode. The following table lists the port, VLAN
and the trust/untrusted combination to determine if traffic is trusted or untrusted. Both the port and the
VLAN have to be configured as trusted for traffic to be considered as trusted. If the traffic is classified as
untrusted, then traffic must pass through the selected session access control list and firewall policies.