Cisco Cisco Aironet 350 Access Points 릴리즈 노트
3
Release Notes for Cisco Aironet 340 and 350 Series Access Points and 350 Series Bridges Running Firmware Version 12.00T
OL-3346-01
New Features
VLANs are extended into the wireless realm by adding IEEE 802.1Q tag awareness to the access point.
Frames destined for different VLANs are transmitted by the access point wirelessly on different SSIDs.
When a client is associated to an SSID that is linked to a particular VLAN, then the client receives
packets that were 802.1Q tagged for that VLAN. When a client associated to a VLAN-linked SSID sends
a packet to the access point, the access point tags the packet with an 802.1Q tag for the VLAN before
forwarding the packet onto the wired network.
Frames destined for different VLANs are transmitted by the access point wirelessly on different SSIDs.
When a client is associated to an SSID that is linked to a particular VLAN, then the client receives
packets that were 802.1Q tagged for that VLAN. When a client associated to a VLAN-linked SSID sends
a packet to the access point, the access point tags the packet with an 802.1Q tag for the VLAN before
forwarding the packet onto the wired network.
illustrates the difference between traditional physical LAN segmentation and logical VLAN
segmentation with wireless devices connected.
Figure 1
LAN Segmentation and VLAN Segmentation with Wireless Components
Quality of Service Support
The access point now supports QoS, primarily in the area of interactive VoIP telephones from
Spectralink and Symbol Technologies Corporation. The access point also provides priority
classification, prioritized queueing, and prioritized channel access for other downlink IEEE 802.11
traffic such as streaming audio or video traffic.
Spectralink and Symbol Technologies Corporation. The access point also provides priority
classification, prioritized queueing, and prioritized channel access for other downlink IEEE 802.11
traffic such as streaming audio or video traffic.
With this software release, the access point does not include any QoS enhancements in Cisco IEEE
802.11 client software.
802.11 client software.
Catalyst
VLAN switch
VLAN 1
VLAN Segmentation
Traditional LAN Segmentation
VLAN 2
VLAN 3
LAN 1
Shared hub
Shared hub
Shared
hub
SSID 0
SSID 0
SSID 0
SSID 1
SSID 2
SSID 3
Floor 3
Floor 2
Floor 1
Trunk
port
port
SSID 1 = VLAN 1
SSID 2 = VLAN 2
SSID 3 = VLAN 3
SSID 2 = VLAN 2
SSID 3 = VLAN 3
LAN 2
LAN 3
81652
Catalyst
VLAN switch
Catalyst
VLAN
switch