Cisco Systems OL-17037-01 manual Optimizing Rfid Tracking on Access Points

Chapter 7 Controlling Lightweight Access Points

Optimizing RFID Tracking on Access Points

Note The Rogue Location Detection Protocol (RLDP) and rogue containment are not supported on the channels listed in Table 7-2.

Note The maximum legal transmit power is greater for some 5-GHz channels than for others. When the controller randomly selects a 5-GHz channel on which power is restricted, it automatically reduces transmit power to comply with power limits for that channel.

Table 7-2	DFS-Enabled 5-GHz Channels
52 (5260 MHz)		104 (5520 MHz)	124 (5620 MHz)
56 (5280 MHz)		108 (5540 MHz)	128 (5640 MHz)
60 (5300 MHz)		112 (5560 MHz)	132 (5660 MHz)
64 (5320 MHz)		116 (5580 MHz)	136 (5680 MHz)
100 (5500 MHz)		120 (5600 MHz)	140 (5700 MHz)

Using DFS, the controller monitors operating frequencies for radar signals. If it detects radar signals on a channel, the controller takes these steps:

•It changes the access point channel to a channel that has not shown radar activity within the last 30 minutes. (The radar event is cleared after 30 minutes.) The controller selects the channel at random.

•If the channel selected is one of the channels in Table 7-2, it scans the new channel for radar signals for 60 seconds. If there are no radar signals on the new channel, the controller accepts client associations.

•It records the channel that showed radar activity as a radar channel and prevents activity on that channel for 30 minutes.

•It generates a trap to alert the network manager.

Optimizing RFID Tracking on Access Points

To optimize the monitoring and location calculation of RFID tags, you can enable tracking optimization on up to four channels within the 2.4-GHz band of an 802.11b/g access point radio. This feature allows you to scan only the channels on which tags are usually programmed to operate (such as channels 1, 6, and 11).

You can use the controller GUI or CLI to configure the access point for monitor mode and to then enable tracking optimization on the access point radio.

Using the GUI to Optimize RFID Tracking on Access Points

Using the controller GUI, follow these steps to optimize RFID tracking.

Step 1 Click Wireless > Access Points > All APs to open the All APs page.

	Cisco Wireless LAN Controller Configuration Guide
OL-17037-01		7-59