Cisco Systems 102073 User Manual

GETTING STARTED GUIDE

Cisco Aironet 3500 Series Lightweight Access Point

1 About this Guide 2 Safety Instructions 3 Unpacking 4 Overview 5 Configuring the Access Point 6 Mounting the Access Point 7 Securing the Access Point 8 Deploying the Access Point on the Wireless Network 9 Troubleshooting 10 Declarations of Conformity and Regulatory Information 11 Configuring DHCP Option 43 and DHCP Option 60 12 Access Point Specifications

1 About this Guide

This Guide prov ide s instru cti ons o n how to insta ll an d conf igu re you r Cisc o Airo net 35 00 S eries Access Point. This guide also provides mounting instructions and limited troubleshooting procedures.

2 Safety Instructions

Translated versions of the following safety warnings are provided in the translated safety warnings document that is shipped with yo ur ac cess point. The tra nslated warni ngs ar e al so i n the Translated Safety Warnings for Cisco Aironet Access Points, which is available on your documentation C D and cisco.com.

Warning

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger . You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.

SAVE THESE INSTRUCTIONS

Read the installation instructions before you connect the system to its power source.

Statement 1004

This product must be connected to a Power-over-Ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source.

Installation of the equipment must comply with local and national electrical codes.

Statement 1074

Statement 1071

Statement 353

Warning

Caution Do not use the supplied plastic wall anchors to mount the access point on a ceiling

Caution This product and all int erconnec ted equi pment must be ins talled in doors with in the same

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 20A.

Statement 1005

Do not operate your wireless network device near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially qualified for such use.

In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons.

Statement 332

because they will not support the weight of the access point. The fasteners used must be capable of maintaining a minimum pullout force of 20 lbs (9 kg) and must use all 4 indented holes on the low-profile mounting bracket.

building, including the associated LAN connections as defined by Environment A of the IEEE 802.af Standard.

Statement 245B

Note The access point is su itable for use in enviro nmen tal air sp ace in a ccorda nce with sectio n

300.22.C of the National Electrical Code and sections 2-128, 12-010(3), and 12-100 of the Canadian E lec tr ic al C o de, P a rt 1, C 22 . 1. You should not i ns ta ll th e p owe r su p pl y o r po w e r injector in air handling spaces.

Note Use only with listed ITE equipment.

3 Unpacking

Follow these steps:

Step 1 Unpack and remove the access point and the accessory kit from the shipping box. Step 2 Return any packing material to the shipping container and save it for future use. Step 3 Ve ri fy that you ha ve r ecei ved t he i tem s sho w n in Figure 1. If any item is missing or damaged,

contact your Cisco representative or reseller for instructions.

Figure 1 Shipping Box Contents

272374

Documentation

CD-ROM

Standard ceiling adjustable T-rail clip

Recessed ceiling adjustable T-rail clip

Low-profile mount ing bra cke t

3500 series access point

AC power cord

DC power supply

#8 plastic wall anchors

#8 X 1-in. (2.54 cm) Phillips head fasteners

6-32 x 1/4 in. (0.6 3 cm) flat he ad screw s

9 10

Documentation CD-ROM

272377

2 3 4

1 5

6 6

4 Overview

The following illustrations show the access point connections and features.

Figure 2 Access Point Ports and Connections

Kensington lock slot

Power co nn ec ti on

Ethernet port

Console por t

Security padlock and hasp

Low-profile mounting bracket pins (feet for

desk or table-top mount)

5 Configuring the Access Point

This section describes how to connect the access point to a wireless LAN controller. Because the configuration process takes place on the controller, see the Cisco Wireless LAN Controller Configuration Guide for additional information. This guide is available on cisco.com.

The Controller Discovery Process

The 3500 series acc ess po int use s the I ETF stan dard Contro l and Pr ovisi oning of Wireless Acce ss Points Protocol (CA PWAP) to communicate between the contr oller and oth er wireless a ccess points o n the network. CA PWAP is a standard, intero perab le pr otoco l whic h enab les an acce ss con troll er to manage a collection of wireless termination points. The discovery process using CAPWAP is identical to the Lightweight Access Point Protocol (LWAPP) used with previous Cisco Aironet access points. LWAPP- ena b led acce ss po in ts a re compa ti bl e with CA PWAP and conversion to a CAPWAP controller is seamless. De ploy ment s can c ombi ne CAPWAP and LWAPP software on the contro lle rs.

The functionality provided by the controller does not change except for customers who have Layer 2 deployments , whic h CAP WAP does not support.

In a CAPW AP environment, a wireless access point discovers a controller by using CAPWAP discovery mechanisms and then sends it a CAPWAP join request. The controller sends the access point a CAPWAP join response allo win g the ac c e ss po i nt t o jo in th e c on tro ll e r. When the acces s po in t j o in s the controller, the controller manages its configuration, firmware, control transactions, and data transactions.

Note For additional infor mati on a bout the dis cov ery proce ss and CAP WAP, see the Cisco Wireless

LAN Controller Software Configuration Guide. This document is available on cisco.com.

Note CAPWAP support is provided in controller software release 5.2 or later. Your controller must

be running rele ase 5. 2 or later.

Note You cannot edit or query any access point using the controller CLI if the name of the access

point conta i n s a sp ac e .

Note Make sure that the controller is set to the current time. If the controller is set to a time that

has already occurr ed, the acces s point mig ht not join the c ontro ller becau se its cer tificate may not be valid for that time.

Access points mus t be discover ed by a control ler before they can become an a ctive part o f the network. The 3500 series access point supports these controller discovery processes:

• Layer 3 CAPWAP discovery—Can occur on different subnets than the access point and uses IP addresses and UDP packets rather than MAC addresses used by Layer 2 discovery.

• Over-the-air provisioning (OTAP)—This f eatu r e is su pp or t ed by Ci sc o 44 00 ser ies cont r ol le rs . I f this feature is enabled on the controller, all joined access points transmit wireless CAPWAP neighbor messages, and new access points receive the controller IP address from these messages. This feature is dis abl ed by de fault and sho uld r emain disa bled when all acces s poin ts ar e inst alled.

Additional information about OTAP is available on cisco.com at the following link:

http://www.ciscosystems.com/en/US/p roducts/ps 6366/p roducts_te ch_note0918 6a008093d 74a.shtml

• Locally stored controller IP address discovery—If the access point was previously joined to a controller, the IP addresses of the primary, secondary, and tertiary controllers are stored in the access point’s non-volatile memory. This process of storing controller IP addresses on an access point for later deployment is called priming the access point. For more information about priming, see the

• DHCP server disc ov er y —Thi s fea tur e uses DHCP op tio n 43 to pro vide contr ol le r IP addr ess es to the access points. Cisco switches support a DHCP server option that is typically used for this capability. For more information a bou t DH CP op tio n 4 3, see the and DHCP Option 60” section on page 43.

• DNS discovery—The access point can discover controllers through your domain name server (DNS). For the access point to do so, you must configure your DNS to return controller IP addresses in response to CISCO-LWAPP-CONTROLLER.localdomain, where localdomain is the access point domain name. Co nfig uring the C ISCO-LWAPP-CONTROLLER provides backwards compatibility in an existing customer deployment. When an access point receives an IP address and DNS information from a DHCP server, it contacts the DNS to resolve CISCO-LWAPP-CONTROLLER.localdomain. When the DNS sends a list of contr oller IP addresses, the access point sends discovery requests to the controllers.

“Performing a Pre- In stalla tion Conf igu rati on” sec tion on page 9.

“Configuring DHCP Option 43

Preparing the Access Point

Before you mount an d dep loy your ac cess p oint, we reco mmen d tha t you p erf orm a site s urvey (or use the site planning tool) to determine the best location to install your access point.

You should have the following information about your wireless network available:

• Access point locations.

• Access poin t m ou n tin g o pti on s: be lo w a s us pe nd e d ce ili ng, on a fl at h or iz o nta l s ur fa ce , or on a

desktop.

Note You can mount the access point above a suspended ceiling but you must purchase

additional mounting hardware: See additional information.

• Access point pow er opt ion s: powe r supp lie d by a DC po wer sup ply, PoE from a network devic e, or a PoE power injector/hub (usually located in a wiring closet).

Note Access points mounted in a building’s environmental airspace must be powered using PoE

to comply with safety regulations.

Cisco recommends that you make a site map showing access point locations so that you can record the device MAC addresses from each location and return them to the person who is planning or managing your wireless network.

“Mounting the Access Point” section on page 13 for

Installation Summary

Installing the access point involves these operations:

• Performing a pre-installation configuration (optional)

• Mounting the access point

• Grounding the access point

• Deploying the access point on the wireless network

Performing a Pre-Installation Configuration

The following procedures ensure that your access point installation and initial operation go as expected. A pre-installation configuration is also known as priming the access point. This procedure is optional .

Note Performing a pre-installation configuration is an optional procedure. If your network

controller is properly configured, you can install your access point in its final location and connect it to the network from there. See the Network” section on page 24 for details.

“Deploying the Access Point on the Wireless

Controller

Layer 3 devices

Cisco Aironet

access points

272488

Pre-Installation Configuration Setup

Figure 3 shows the pre-installation configuration setup.

Figure 3 Pre-Installation Config ur a ti on Set up

Follow these steps t o perfo rm th e pre- ins talla tion conf igur atio n.

Step 1 Make sure that the Cisco wireless LAN controller DS port is connected to the network. Use

the CLI, web-browser interface, or Cisco WCS procedures as described in the appropriate Cisco wireles s LA N c ont ro lle r guide.

a. Make sure that access points have Layer 3 connectivity to the Cisco wireless LAN controller

Management and AP-Manager Interface.

b. Configure the switch to which your access point is to attach. See the Cisco Unified Wireless

Network WLAN Controller Guide: Cisco 440x Series WLAN Controllers for additional

information.

c. Set the Cisco wireless LAN controller as the master so that new access points always join with

it.

d. Make sure DHCP is enabled on the network. The access point must receive its IP address

through DHCP.

e. CAPWAP UDP ports must not be blocked in the network.

f. The access point must be able to find the IP address of the controller. This can be

accomplished using DHCP, DNS, or IP subnet broadcast. This guide describes the DHCP method to convey the controller IP address. For other methods, refer to the product documentation. See also the information.

Step 2 Apply power to the access point:

a. The access point is 802.3af (15.4 W) compliant and can be powered by any of the following

802.3af compliant devices:

–

2106 control ler

–

WS-C3550, WS-C3560, and WS-C3750 switches

–

C1880 switch

–

2600, 2610, 2611, 2621, 2650, and 2651 multiservice platforms

–

2610XM, 2611X M, 26 21 XM, 265 0X M , 2 65 1XM, and 2691 mu lti serv ic e p la tfo rms

–

2811, 2821, and 2851 integrated services routers

–

3620, 3631-telco, 3640, and 3660 multiservice platforms

–

3725 and 3745 multiservice access routers

–

3825 and 3845 integrated services routers

The access point can also be powered by any of the following optional external power sources:

–

Any 802.3af com plia nt po wer in jec tor

“Using DHCP Option 43” section on page 26 for more

Note The 3500 series acc es s po in t req ui re s a Gigi b it E the rn et link to pre v e nt th e Et he rn et

port from becoming a bottleneck for traffic because wireless traffic speeds exceed transmit speeds of a 10/100 Ethernet port.

–

1250 series access point power injector (AIR-PWRINJ4)

–

1100/1200 series access point DC power supply (AIR-PWR-SPLY)

b. As the access point attempts to connect to the controller , the LEDs cycle through a green, red,

and amber sequence, which can take up to 5 minutes.

Note If the access point remains in this mode for more than five minutes, the access point is

unable to find the Master Cisco wireless LAN controller. Check the connection between the access point and t he Cisc o wirele ss LAN co ntr oller an d be su re that th ey are on t he same subnet.

c. If the access point shuts down, check the power source. d. After the access point finds the Cisco wireless LAN controller, it attempts to download the

new operating system code if the access point code version differs from the Cisco wireless LAN controller code version. While this is happening, the Status LED blinks dark blue.

e. If the operating system download is successful, the access point reboots.

Step 3 Configure the access point if required. Use the controller CLI, controller GUI, or Cisco WCS

to customize the access-point-specific 802.11n network settings.

Step 4 If the pre-installation configuration is successful, the Status LED is green indicating normal

operation. Disconnect the access point and mount it at the location at which you intend to deploy it on the wireless network.

Step 5 If your access point does not indicate normal operation, turn it off and repeat the

pre-install a ti on c o nf i gur a tio n.

Note When you are installing a Layer 3 access point on a different subnet than the Cisco

wireless LAN controller, be sure that a DHCP server is reachable from the subnet on which you will be installing the access point, and that the subnet has a route back to the Cisco wireless LAN con troll er. Al so be sur e that the route back to t he Cisc o wireless LAN contr oller has destina tion UDP ports 5246 and 5247 open for CAPWAP communications. Ensure that the route back to the primary, secondary, and tertiary wireless LAN co ntr oller a llo ws IP pa cke t frag ment s. Fi nall y, be sure that if address translation is used, that the access point and the Cisco wireless LAN controller have a static 1-to-1 NAT to an outside address. (Port Address Translation is not supported.)

6 Mounting the Access Point

This section des crib es ho w to mou nt the acces s poi nt usin g its su ppl ied mo unti ng har dwa re. Use the provided low-profi le mounting br acket (See surface or below a standard or recessed suspended ceiling. The low-profile mounting bracket is not necessary when mounting the access point on a table or desk top.

Note The integrated antenna design of the 3500 series access point is designed for horizontal

surfaces, (table top and ceiling installations). When mounted to such surfaces, the integrated antennas produce the best antenna radiation pattern. For advanced features such as voice, location, and rogue access point detection, ceiling mounting is strongly recommended. However, for smaller areas such as conference rooms, kiosks, transportation, and hot-spot usage where the customer is concerned primarily with data coverage and not advanced features, this uni t may be w all mounte d using the supplie d plastic w all anch ors and #8 screw s.

Caution Do not use the plastic wall anchors to mount the access point on a ceiling because they

will not support the weight of the access point. The fasteners used must be capable of maintaining a minimum pullout force of 20 lbs (9 kg) and must use all 4 indented holes on the low-profile mounting bracket.

Figure 4) to mount the access point on any flat horizontal

Figure 4 Low Profile Mounting Bracket Installed on the 3500 Series Access Point

272380

Y o u can a lso mo unt the acce ss p oint abo ve a sus pend ed ceil ing or to a ju nction box u sing th e option al adapter bracket.

Figure 5 shows the optional adapter bra cket installe d on the 3500 seri es access point.

Figure 5 Optional Adapter Bracket Installed on the 3500 Series Access Point

272384

Note The optional adapter brac ket can also be used to mount the access poi nt on suspended ceil ing

installations using existing mounting hardware for the 1100, 1130, 1200, or 1240 series access points.

See the Cisco Aironet 3500 Series Access Point Alternate and Upgrade Mounting Instructions for procedures for mounti ng an 3500 s eries acce ss point on 110 0, 1130, 1200, or 1240 series acce ss point ceiling mounting hardware. This document ships with the optional adapter plate and is availa ble on cisco.com.

Mounting Hardware

The access point ships with the following mounting hardware (See Figure 1):

• One low-profile mounting bracket

• One standard ceiling adjustable T-rail clip

• One recessed ceiling adjustable T-rail clip

• Four #8 Phillips head fasteners

• Four #8 wall anchors

• Four 6-32 x 1/4 in. flat head sc rews

The following mounting hardware is available as an orderable option:

• Adapter plate for the following mounting scenarios:

–

Above a suspended ceiling

–

To a junction box

–

To existing 1100, 1130, 1200, or 1240 series mounting hardware

Mounting the Access Point on a Horizontal Surface

Use the provided low-profile mounting bracket to mount the access point to flat, horizontal surfaces such as a ceiling. If you are mounting the access point to a junction box, you should use the optional adapter plate.

+ 33 hidden pages