Table Of Contents
Connecting Cisco WLAN Controller Enhanced Network Modules to the Network
Revised: May 1, 2008, OL-16632-01
This guide describes how to connect Cisco wireless LAN (WLAN) controller enhanced network modules and contains the following sections:
Cisco Wireless LAN Controller Network Modules
The Cisco wireless LAN (WLAN) controller network module is designed to provide 802.11 wireless networking solutions to small- and medium-sized businesses (SMBs) and enterprise branch office customers.
Two models of Cisco WLAN controller network module are available:
•NME-AIR-WLC8-K9— See Figure 1
•NME-AIR-WLC12-K9— See Figure 1
For information about the Cisco Wireless LAN controller module NM-AIR-WLC6 solution, see the Connecting Cisco WLAN Controller Network Modules document at the following URL:
Both models of Cisco WLAN controller enhanced network modules (NMEs) ship from the factory with the following hardware preinstalled.
Figure 1 Cisco WLAN Controller Network Module Faceplate
Shutting Down the WLAN Controller
Insert a narrow pin into the shutdown opening on the faceplate, and press the button for less than 2 seconds to perform a graceful shutdown of the hard disk before removing power from the router or before starting an online insertion and removal (OIR) sequence on the router. The application may take up to 2 minutes to fully shut down.
Caution If you press the shutdown button for more than 2 seconds, an immediate shutdown of the hard disk will occur and may cause file corruption on the network module's hard disk. After an immediate shutdown, the HD and SYS LEDs remain lighted. Press the shutdown button for less than 2 seconds to gracefully reboot the network module.
Establishing a Gigabit Ethernet Internal Connection
The Cisco WLAN controller-enhanced network module lets you establish an internal Gigabit Ethernet connection between an onboard small-form-factor pluggable (SFP) Gigabit Ethernet module and a WLAN controller-enhanced network module installed in Cisco 3700 series routers, Cisco 2800 Integrated Services Routers (ISR), or Cisco 3800 ISRs.
Note The Cisco 2801 Integrated Services Router does not support the Cisco WLAN controller network module.
Internal connections must be established as follows:
•Cisco 2811 router—Install the WLAN controller network module in slot 1
•Cisco 2821 router—Install the WLAN controller network module in slot 1
•Cisco 2851 router—Install the WLAN controller network module in slot 1
•Cisco 3725 router—Install the WLAN controller network module in slot 1
•Cisco 3745 router—Install the WLAN controller network module in any of slots 1 through 4
•Cisco 3825 router—Install the WLAN controller network module in slots 1 and 2
•Cisco 3845 router—Install the WLAN controller network module in any of slots 1 through 4
Online Insertion and Removal of Cisco Network Modules
Some Cisco access routers allow you to replace network modules without switching off the router or affecting the operation of other interfaces. This feature is called online insertion and removal (OIR). OIR of a module provides uninterrupted operation to network users, maintains routing information, and ensures session preservation.
Caution Cisco routers support OIR with similar modules only. If you remove a module, install another module exactly like it in its place. If you remove a 2-slot module (along with any installed WAN or voice interface cards), install another module and card combination exactly like it.
For a description of informational and error messages that may appear on the console during this procedure, see the hardware installation guide for your router.
To perform online removal of a network module and insertion of a replacement, follow these steps, with the router in privileged EXEC mode:
Step 1 Initiate a network module session by using the following command:Press RETURN to get started!Router> enableRouter# service-module integrated-service-engine 1/0 session
Trying 10.10.10.1, 2065 ... OpenUser:
Step 2 Exit the network module session by pressing Control-Shift-6, and then pressing x.
Step 3 Save the running configuration of the network module by using the following command from the
router # prompt:Router# copy running-config tftp tftp-server-address filename
Step 4 On the router, clear the integrated-service-engine console session by using the following command:
Router# service-module integrated-service-engine slot/unit session clear
Step 5 Perform a graceful shutdown of the network module disk drive by using the following command:Router# service-module integrated-service-engine slot/unit shutdown
Step 6 Shut down the network module interface:Router (config)# interface integrated-service-engine slot/unitRouter (config-if)# shutdownRouter (config-if)# exit
Step 7 Loosen the two captive screws holding the network module in the chassis slot.
Step 8 Slide the network module out of the slot.
Step 9 Align the replacement network module with the guides in the chassis slot, and slide it gently into the slot.
Note If the router is not fully configured with network modules, make sure that blank panels fill the unoccupied chassis slots to provide proper airflow.
Step 10 Push the module into place until you feel its edge connector mate securely with the connector on the backplane.
Step 11 Check that the network module LEDs are on and that the power (PWR) and enable (EN) LEDs on the front panel are also on. This inspection ensures that connections are secure and that the new unit is operational.
Step 12 Initiate a network module session by using the following command:Router# service-module Integrated-Service-Engine 2/0 sessionTrying 18.104.22.168, 2130 ... Open(Cisco Controller) >
Step 13 Restore the network module running configuration by using the following command from the service module prompt:Router# copy tftp running-config tftp-server-address filename
Step 14 On the router, clear the network module session by using the following command:
Router# service-module integrated-service-engine slot/unit session clear
For additional information, see the following documents and resources.
Related Topic Document Title
Regulatory compliance and safety information
Cisco Network Modules and Interface Cards Regulatory Compliance and Safety Information
Cisco IOS software website and reference documentation
Cisco IOS Software http://www.cisco.com/web/psa/products/index.html?c=268438303
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