HP ProCurve Switches / Wireless - Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G

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An HP ProCurve Networking Application Note

Interoperability between ProCurve WESM zl and

Cisco Unified Wireless IP Phone 7921G

Contents

1. Introduction ................................................................................................................................................................. 3

2. Prerequisites ............................................................................................................................................................... 3

3. Network architecture .................................................................................................................................................. 3

4. Secure wireless WPA2-PSK encryption ................................................................................................................... 4

4.1 Configure the ProCurve WESM .............................................................................................................................. 4

4.2 Configure the Cisco wireless IP phone ................................................................................................................... 5

5. Fast roaming ................................................................................................................................................................ 6

5.1 Fast roaming options ............................................................................................................................................... 6

5.2 Configure self-healing .............................................................................................................................................. 7

5.3 Test roaming time .................................................................................................................................................... 7

6. Configuring 802.11e and UAPSD ............................................................................................................................... 8

6.1 Configure WMM on the WESM ............................................................................................................................... 8

6.2 Configure UAPSD on the Cisco wireless IP phone ................................................................................................. 9

Summary of content (10 pages)

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An HP ProCurve Networking Application Note Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G Contents 1. Introduction ................................................................................................................................................................. 3 2. Prerequisites ............................................................................................................................................................... 3 3.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 7. Firmware versions ...................................................................................................................................................... 9 8. Reference documents...............................................................................................................................................
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 1. Introduction This document describes the interoperability of a ProCurve wireless services solution coupled with the Cisco Unified Wireless Phone 7921G to provide a secure Voice over WLAN (VoWLAN) solution with the following services: • Secure wireless encryption with WPA/WPA2 (pre-shared key) • Fast roaming • Quality of Service (via WMM) on the wireless media • Unscheduled Automated Power Save Delivery (UAPSD) 2.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 4. Secure wireless WPA2-PSK encryption The Cisco Unified Wireless IP Phone 7921G supports the following encryption options: • WEP • WPA1-PSK • WPA2-PSK • 802.1X with the following EAP protocols: LEAP, PEAP, EAP-FAST, EAP-TLS, and PEAP This application note describes the configuration of WPA2-PSK encryption. 4.1 Configure the ProCurve WESM To configure the ProCurve WESM for secure wireless encryption via WPA2-PSK: 1.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 3. Click the Config button, and configure the pre-shared key as follows. o o ASCII passphrase: procurve Enable all three Fast Roaming options (PMK Caching, Opportunistic Key Caching, PreAuthentication). 4. Click OK to return to the main Edit window. 5. In the main Edit window, under Advanced, select Closed System, then click OK. 6.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 9. Set the WLAN parameters as follows: o 1. Ssid: voice o 2. Security Mode: Choose Auto (AKM) o 3. Leave unconfigured o 4. Leave unconfigured o 5. Key style: ASCII o 6. Pre-shared key: procurve o 7. 802.11 mode: Auto-RSSI Leave the other settings as they are. 10. On the WESM, you can now see the phone in Device Association > Wireless stations.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 5.2 Configure self-healing The self-healing feature enables associating neighbors to each radio port. In case of failure of a radio port, the neighbors increase their transmit power to provide coverage and compensate for the failed RP. You can also enable interference avoidance, which causes radios to change their channel settings to avoid interfering with surrounding radios. To enable self-healing: 1.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G After losing between 1 and 3 pings, you see the phone associated to another radio. In this case, the Radio Index, which was previously 3, is now 5, indicating the phone is now associated with the RP represented by Radio Index 5: 6. Configuring 802.11e and UAPSD This section details how to configure WMM (802.11e) and Unscheduled Automatic Power Save Delivery (UAPSD). 6.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 5. Click OK to accept Automatic/WMM as the Access Category. Wireless traffic is placed in the four queues according to its 802.1p priority (default) or DSCP value. Note that for each queue, four parameters are defined: o AIFSN, Arbitration IFS Number, the default time before countdown. o CW minimum (CWmin), the minimum contention window. o CW maximum (CWmax), the maximum contention window.
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Interoperability between ProCurve WESM zl and Cisco Unified Wireless IP Phone 7921G 8. Reference documents This concludes the procedures for interoperating ProCurve switches with the Cisco Unified Wireless IP Phone 7921G. For further information about how to configure ProCurve switches to support mobility, please refer to the following links: • For user manuals for ProCurve 3500yl-5400zl-8212zl switches: http://www.hp.com/rnd/support/manuals/3500-6200-5400-ChapterFiles.