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Cisco Wireless LAN Solution Product Guide
OL-7955-01
Chapter 1 Overview
Cisco Wireless LAN Controllers
Cisco Wireless LAN Controller Time Zones
Each Cisco Wireless LAN Controller can have its time zone manually set or can be configured to obtain
the current time from one or more Network Time Protocol (NTP) servers. Each NTP server IP address
is added to the Cisco Wireless LAN Controller database. Each Cisco Wireless LAN Controller can
search for an NTP server and obtain the current time zone upon reboot and at each user-defined (daily
to weekly) polling interval.
Network Connections to Cisco Wireless LAN Controllers
Regardless of operating mode, all Cisco Wireless LAN Controllers use the network as an 802.11
Distribution System. Regardless of the Ethernet port type or speed, each Cisco Wireless LAN Controller
monitors and communicates with its related Cisco Wireless LAN Controllers across the network. The
following sections give details of these network connections:
• Cisco 2000 Series Wireless LAN Controllers, page 1-19
• Cisco 4100 Series Wireless LAN Controllers, page 1-19
• Cisco 4400 Series Wireless LAN Controllers, page 1-20
Cisco 2000 Series Wireless LAN Controllers
Cisco 2000 Series Wireless LAN Controllers can communicate with the network through any one of its
physical ports, as the logical management interface can be assigned to the one of the physical ports. The
physical port description follows:
• Up to four 10/100BASE-T cables can plug into the four back-panel connectors on the Cisco 2000
Series Wireless LAN Controller chassis.
Figure 1-6 shows connections to the 2000 series controller.
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