CCNA Wireless Official Exam Certification Guide part 43 ppt

392 CCNA Wireless Official Exam Certification Guide Figure 19-7 Verify the AP Upgrade Upgrading WCS Beginning in WCS version 4.2, the WCS code upgrade script made it possible to upgrade the WCS while retaining the directories, root password, and license information. The op- eration is automated and simply involves downloading the install file from the Cisco web- site and running it on the machine on which the WCS is installed. During the install process, you are informed that a previous install has been detected, and you’re asked to choose between upgrading and installing. Upgrading retains all the information from the previous install. If you choose the install option, it will be as if WCS was not previously there; in other words, it’s a fresh install. Managing Configurations When working in the Cisco Unified Wireless Environment, you deal with a number of configuration files. You potentially have numerous controller configurations as well as AP configurations. When you’re working with the controller, it’s a good idea to save your con- figuration often. Clicking the Save Configuration link can save a controller’s configura- tion. It is found in the top-right corner of the web interface, as shown in Figure 19-8. 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 392 Chapter 19: Maintaining Wireless Networks 393 Figure 19-8 Save the Configuration In addition to saving the configuration to NVRAM, you can back up the configuration on a remote TFTP server. Saving to a TFTP server is similar to how you upgraded the con- troller, only this time you are moving a file in the opposite direction. The setup requires the use of TFTP server software installed on the destination computer where you want to back up the file. TFTP uses UDP port 69, so make sure that nothing in the transit path, such as a firewall, might block that type of traffic. If you have already upgraded from the TFTP server, you probably won’t have any issues. The next step is to choose COMMANDS > Upload File. In the drop-down box, choose Configuration. Select the option to encrypt the file is you want, enter the server’s address and configuration file name, and click upload. If you don’t choose to encrypt it, you get a pop-up warning when you click Upload. After you upload the configuration file, you can download this file to other controllers. However, you cannot read it as you would a configuration file from a router or switch, be- cause it is an XML file. Suppose you wanted to back up the controller configuration to 192.168.2.99. Simply enter the IP address 192.168.2.99 in the IP Address field and give it a name, as shown in Figure 19-9. In this example, the file name is 1WLC1.cfg. 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 393 394 CCNA Wireless Official Exam Certification Guide Click the Upload button to begin the process. This takes a short time. After completion, you can verify by viewing the directory on the TFTP server where the files are stored, as shown in Figure 19-10. After viewing the directory on the TFTP server, you can see that the upload was successful. The file has been backed up and can now be used on other controllers. Further exploration shows that the file can be opened and viewed but is not very readable, as shown in Figure 19-11. If you do want to view the configuration in a readable format, you could issue the show running-config command from the CLI on the controller. In Example 19-1, the show running-config command has been entered on the controller. Using this command you can see line by line how the controller is configured. It’s important to note the difference between this command and the show run-config command, because they produce very different output. show running-config displays the contents of the configuration line by line. show run-config provides information about the state of the system. Figure 19-9 Backing Up the Controller Configuration to TFTP Key Topi c 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 394 Chapter 19: Maintaining Wireless Networks 395 Figure 19-10 TFTP Directory Figure 19-11 Viewing the File on the TFTP Server 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 395 396 CCNA Wireless Official Exam Certification Guide Example 19-1 show running-config Command Output (Cisco Controller) > show running-config 802.11a 11nSupport a-mpdu tx priority 0 disable 802.11a cac voice tspec-inactivity-timeout ignore 802.11a cac video tspec-inactivity-timeout ignore 802.11a cac voice stream-size 84000 max-streams 2 802.11b 11nSupport a-mpdu tx priority 0 disable 802.11b cac voice tspec-inactivity-timeout ignore 802.11b cac video tspec-inactivity-timeout ignore 802.11b cac voice stream-size 84000 max-streams 2 aaa auth mgmt local radius advanced 802.11a receiver pico-cell-V2 rx_sense_thrld 0 0 0 advanced 802.11a receiver pico-cell-V2 cca_sense_thrld 0 0 0 advanced 802.11a receiver pico-cell-V2 sta_tx_pwr 0 0 0 Location Summary Algorithm used: Average Client RSSI expiry timeout: 150 sec Half life: 60 sec Notify Threshold: 0 db Calibrating Client RSSI expiry timeout: 30 sec Half life: 0 sec Rogue AP RSSI expiry timeout: 120 sec Half life: 0 sec Notify Threshold: 0 db RFID Tag RSSI expiry timeout: 5 sec Half life: 0 sec Notify Threshold: 0 db location rssi-half-life tags 0 location rssi-half-life rogue-aps 0 location expiry tags 5 location expiry client 150 location expiry calibrating-client 30 location expiry rogue-aps 120 advanced eap identity-request-timeout 1 advanced eap identity-request-retries 20 advanced eap request-timeout 1 ap syslog host global 255.255.255.255 interface create guest_lan 80 interface address ap-manager 192.168.1.51 255.255.255.0 192.168.1.1 interface address dynamic-interface guest_lan 172.30.1.50 255.255.255.0 172.30.1.1 interface address management 192.168.1.50 255.255.255.0 192.168.1.1 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 396 Chapter 19: Maintaining Wireless Networks 397 interface address service-port 192.168.100.1 255.255.255.0 interface address virtual 1.1.1.1 interface dhcp ap-manager primary 192.168.1.1 interface dhcp dynamic-interface guest_lan primary 172.30.1.1 interface dhcp management primary 192.168.1.1 interface dhcp service-port disable interface vlan ap-manager 1 interface vlan guest_lan 80 interface vlan management 1 interface port ap-manager 1 interface port guest_lan 1 interface port management 1 load-balancing window 5 logging buffered 1 mesh security eap mgmtuser add admin **** read-write mobility group domain CP_Mobile mobility group anchor wlan add 2 192.168.1.50 mobility dscp value for inter-controller mobility packets 0 network webmode enable network rf-network-name CP_Mobile radius fallback-test mode off radius fallback-test username cisco-probe radius fallback-test interval 300 snmp version v2c enable snmp version v3 enable sysname 1WLC1 wlan create 1 Open Open wlan create 2 Public_Guest_Access GUESTNET wlan interface 2 guest_lan wlan session-timeout 1 1800 wlan session-timeout 2 disable wlan wmm allow 1 wlan wmm allow 2 wlan security wpa disable 2 wlan security web-auth server-precedence 1 wlan security web-auth server-precedence 2 wlan security wpa akm ft reassociation-time 0 1 wlan security wpa akm ft over-the-air disable 1 wlan security wpa akm ft over-the-ds disable 1 wlan security wpa akm ft reassociation-time 0 2 wlan security wpa akm ft over-the-air disable 2 wlan security wpa akm ft over-the-ds disable 2 wlan enable 1 wlan enable 2 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 397 398 CCNA Wireless Official Exam Certification Guide Figure 19-12 Options for Resetting the AP Working with AP Configuration Files Keeping in mind that the AP gets its configuration from the controller should make it clear that you don’t really have to do much to manage AP configurations. However, you might encounter scenarios where you want to reset an AP to its factory default. You can do this at the AP itself, but you require physical access to the AP. To reset the AP from the con- troller, simply choose WIRELESS, choose the AP you want to reset, and scroll to the bot- tom. You have two options, as shown in Figure 19-12. You can click Clear All Config or Clear Config Except Static IP. The choice depends on what you want to happen. If you use static IPs and want to reset the AP and remove it from the network, choose the second option. Resetting the Controller to the Defaults Finally, if you decide to reset the controller to its factory defaults, you can choose COMMANDS > Reset to Factory Default. This page presents a message similar to the one shown in Figure 19-13; it explains what happens when you reset the controller to the defaults. The controller needs to reboot for this to occur, because the configuration is not only stored in NVRAM, but it is also active in RAM and is cleared only with a reboot. You will lose connectivity when you do this. 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 398 Chapter 19: Maintaining Wireless Networks 399 Figure 19-13 Reset the Controller to the Factory Defaults 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 399 400 CCNA Wireless Official Exam Certification Guide Exam Preparation Tasks Review All the Key Topics Review the most important topics from this chapter, denoted with the Key Topic icon. Table 19-2 lists these key topics and the page number where each one can be found. Definition of Key Terms Define the following key terms from this chapter, and check your answers in the Glossary: RTOS, RAM, NVRAM, TFTP References Cisco Wireless Control System Configuration Guide, Release 5.0: http://www.cisco.com/ en/US/docs/wireless/wcs/5.0/configuration/guide/wcstasks.html#wp1076844 Cisco Wireless LAN Controller Configuration Guide, Release 5.0: http://www.cisco.com/ en/US/docs/wireless/controller/5.0/configuration/guide/c5mfw.html Table 19-2 Key Topics for Chapter 19 Key Topic Item Description Page Number Figure 19-1 Verifying the software version 386 Figure 19-3 General details for the Lobby-AP 387 Paragraph from the section “Controller Upgrade Approaches” A list of files contained in the compressed upgrade file 388 Figure 19-5 Upgrading the controller via the web interface 389 Paragraph from the section “Upgrading an AP” Bullet points about AP upgrades and downgrades 391 Figure 19-9 Backing up the controller configuration to TFTP 394 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 400 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 401 . Maintaining Wireless Networks 399 Figure 19-13 Reset the Controller to the Factory Defaults 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 399 400 CCNA Wireless Official Exam Certification Guide Exam Preparation. shown in Figure 19-9. In this example, the file name is 1WLC1.cfg. 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 393 394 CCNA Wireless Official Exam Certification Guide Click the Upload button. Maintaining Wireless Networks 395 Figure 19-10 TFTP Directory Figure 19-11 Viewing the File on the TFTP Server 22_1587202115_ch19.qxp 9/29/08 2:46 PM Page 395 396 CCNA Wireless Official Exam Certification