HP ProCurve 420 Access Points

Transcription

1 HP ProCurve 420 Access Points This document details the specifications for configuring the HP ProCurve 420 access points (APs) with NetLink Wireless Telephones. Product Summary Manufacturer: HP : Approved product: ProCurve 420 RF technology: Radio: Antenna Diversity: Security: Spread spectrum, Direct sequence (DS) GHz RX diversity AP software version tested: Maximum telephone calls per AP: 8 * Required network topology: WEP, WPA-PSK Switched Ethernet Earlier and later software versions have not been tested for the NetLink SVP Server compliance, except as noted. Refer to NetLink Wireless Telephone WLAN Compatibility List for field verified AP software versions. * Telephone calls per AP must be configured in the system per documentation provided by SpectraLink. NetLink Wireless Telephones NetLink Wireless Telephones use voice over IP (VoIP) technology on IEEE bcompatible wireless local area networks (WLANs). Access points utilize radio frequencies to transmit signals to and from the NetLink Wireless Telephones. Access Point Capacity and Positioning Each site is unique in its AP requirements. Please take the following points into account when determining how many APs are needed and where they should be placed in the facility. Handset range There must be wireless LAN coverage wherever NetLink Wireless Telephones will be used. The typical range for a NetLink Wireless Telephone is comparable to that of a laptop computer utilizing a wireless LAN PC card. However, NetLink Wireless Telephones are likely to be used in areas where data devices are not typically used, such as stairwells and outdoor areas. NetLink Wireless Telephones have a Site Survey mode that displays dbm levels to determine adequate WLAN coverage. Refer to the NetLink Wireless Telephone Configuration and Administration document for details about this feature. Number of handsets per access point Estimate the number of NetLink Wireless Telephones and their anticipated call volume per AP area to ensure that the maximum number of calls per AP will not be exceeded. In Copyright 2005 SpectraLink Corporation. All rights reserved PN: A.doc Page 1

2 this estimate, consider the data rates at which the handsets will operate. Higher data rates can only be sustained while well within the range of the AP. If the NetLink Wireless Telephones will be operating near the limits of the RF coverage from the AP, they will automatically drop to 1 Mb/s operation. NetLink Wireless Telephones require approximately 15% of the available bandwidth per call for 1 Mb/s operation, approximately 10% of the available bandwidth per call for 2 Mb/s operation, approximately 7% of the available bandwidth per call for 5.5 Mb/s operation, and approximately 5% of the available bandwidth per call for 11Mb/s operation. Note: the maximum number of telephone calls per AP quoted in the summary table above is based on 11 Mb/s operation, and will be reduced if some or all NetLink Wireless Telephones are operating at 1, 2, or 5.5 Mb/s. LAN bandwidth Estimate anticipated peak call volume to ensure that the LAN has enough bandwidth available to handle the network traffic generated by all of the wireless devices. Network traffic can be monitored/analyzed using a network sniffer or a simple network management protocol (SNMP) workstation. Number of other wireless devices per AP The NetLink Wireless Telephones share bandwidth with other wireless devices. To ensure adequate RF bandwidth availability, consider the number of wireless data devices in use per AP. Notes on Configuration The AP must support SpectraLink Voice Priority (SVP). Contact your AP vendor if you need to upgrade the AP software. If you encounter difficulties or have questions regarding the configuration process, please contact the Customer Support Hotline at (800) The hotline is open Monday through Friday, 6 a.m. to 6 p.m. Mountain time. PN: A.doc Page 2

3 Typical Deployment Diagram HP 420 ProCurve AP HP 420 ProCurve AP HP 420 ProCurve AP HP 420 ProCurve AP PN: A.doc Page 3

4 Configuring the HP ProCurve 420 The HP ProCurve 420 can be configured either via command line interface (CLI) commands or via a Web browser. This document uses the Web browser for the configuration. Contact HP for any issues concerning the method of configuration. Setting the SSID The HP ProCurve 420 can support up to 8 different SSIDs. 1. Click the Wireless Interfaces tab. 2. To change the existing SSID, click Modify under Configure SSID. To add a new SSID, click Add. The following screen appears: 3. Select an Index number from the drop-down list. 4. Enter the SSID Name, SSID Description and VLAN ID as appropriate. 5. Click Apply Changes to save this SSID. PN: A.doc Page 4

5 Configure AP Radio Settings 1. Click the Configuration tab. 2. Click the Port/Radio Settings tab. 3. Under Working Mode, select the appropriate option. 4. Click Radio Mode Change. 5. Scroll down to display the remaining options on this screen. 6. Set the Radio Channel (channels 1, 6, and 11 are recommended for non-overlapping channel assignment). PN: A.doc Page 5

6 7. For Auto Channel Select, click Disable. 8. For Transmit Power, select the desired value from the drop-down box. 9. For Multicast Data Rate, 11Mbps or 5.5Mbps are recommended 10. For Beacon Interval, enter For Data Beacon Rate (DTIM), enter For Fragmentation Threshold, enter For RTS Threshold enter All other settings remain as shown on the above screen. Click Apply Changes. PN: A.doc Page 6

7 Configure TCP/IP Settings 1. Click the Configuration tab. 2. Click the IP Configuration tab. 3. Click either Obtain the IP Address from the DHCP Server or Use the Static IP Address below and enter the IP addresses statically. 4. Click Apply Changes. Configure Security Settings 1. Click the Wireless Interfaces tab. 2. Click the Security Suite tab. 3. Enter all of the appropriate information regarding the desired security policy. 4. Click Apply Changes. PN: A.doc Page 7

8 AP detection 1. Click the AP Detection tab. 2. Click the Settings tab. 3. Click the Disable option. 4. Click Apply Changes. PN: A.doc Page 8