1.
A PC sends an untagged frame into access port 6 (Control VLAN) on wireless network switch 1. The
frame is sent to other access ports on the Control VLAN (access port 5).
2.
Wireless network switch 1 tags the frame with VLAN ID = 4 and Priority = 5 and sends it through the
trunk ports to Wireless network switch 2.
3.
Wireless network switch 2 receives the tagged frame, and identies the frame belonging to the Control
VLAN.
4.
Wireless network switch 2 removes the tag and sends the frame to all ports on the Control VLAN
(access ports 5 and 7).
5.
If Wireless network switch 1 receives multiple frames, they are tagged and sent via trunk ports to
Wireless network switch 2.
6.
Wireless network switch 2 receives the frames and prioritises distribution.
4.1.3 Port Allocation
Physical ports on the NS50 can be congured to be either a trunk port or access port using the web browser
interface or editing site conguration les when Trivial File Transfer Protocol (TFTP) is used. The NS50
default conguration has ports 1-8 allocated as trunk ports. Ports 1-4 are usually connected to other NS50
units, and ports 5-8 are connected to WAPs or other PoE devices. For more information on conguring
ports and VLAN membership, see Conguring the VLAN Port Map on page 82.
NS50 User Guide45Revision C
Understanding VLANs