Installation guide

Overview
1-11
• The switch can be configured to provide NTP services to NTP clients.
• The switch can provide NTP support for user authentication.
• Secure Network Time Protocol (SNTP) clients can be configured to synchronize switch time with an
external NTP server.
For information on configuring the switch to support SNTP, see Configuring Secure NTP on page 5-24.
1.2.1.11 Password Recovery
The switch has a provision enabling the restoration of its factory default configuration if a password is lost. In
doing so, the current configuration is erased and can be restored assuming if has been exported to a secure
location. For information on password recovery, see Switch Password Recovery on page 2-3.
1.2.2 Wireless Switching
The switch includes the following wireless switching features:
• Physical Layer Features
• Proxy-ARP
• Hotspot / IP Redirect
• IDM (Identity Driven Management)
• Voice Prioritization
• Self Healing
• Wireless Capacity
• AP and MU Load Balancing
• Wireless Roaming
• Power Save Polling
• QoS
• Wireless Layer 2 Switching
• Automatic Channel Selection
• WMM-Unscheduled APSD
• Adaptive AP
• Multiple VLANs per WLAN
1.2.2.1 Adaptive AP
An adaptive AP (AAP) is an AP-51XX access point that can adopt like an AP300 (L3). The management of an
AAP is conducted by the switch, once the access point connects to the switch and receives its AAP
configuration.
An AAP provides:
• local 802.11 traffic termination
• local encryption/decryption
• local traffic bridging
• tunneling of centralized traffic to the wireless switch
An AAP’s switch connection can be secured using IP/UDP or IPSec depending on whether a secure WAN link
from a remote site to the central site already exists.