Примечания к выпуску для Cisco Cisco 4402 Wireless LAN Controller

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Features Not Supported on the Cisco 2000 Series Wireless LAN Controller:

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Hardware Features:
- Power over Ethernet.
- Service port (separate out-of-band management 10/100 Mbps Ethernet interface).

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Software Features:
- VPN Termination (for example, IPSec and L2TP).
- Guest controller WLAN function.
- External Web Authentication web server list.
- Layer 2 LWAPP.
- Spanning tree.
- Port mirroring.
- Cranite.
- Fortress.
- AppleTalk.
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802.1p tagging.

- QoS per user bandwidth contracts.
- IPv6 pass-through.

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Some clients can only see 64 AP MAC addresses (BSSIDs) at a time - In a crowded RF 
environment, clients may not be able to detect the desired SSID because of internal table 
limitations. Sometimes disabling and then enabling the client interface forces a rescan. Your RF 
environment needs to be controlled. Cisco WLAN Solution rogue access point detection and 
containment can help you enforce RF policies in your buildings and campuses.

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Pinging from any network device to a dynamic interface IP address is not supported - Clients on 
the WLAN associated with the interface pass traffic normally.

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Data traffic that goes in Cisco 4400 Series Wireless LAN Controller port 1 or 2 and exits port 3 
or 4 may experience a loss rate of less than 1%.

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Heavy multicast traffic may cause the Cisco 4400 Series Wireless LAN Controller to lose 
connection with Cisco 1000 Series lightweight access points.