INTEROPERABILITY REPORT Ascom i62 Cisco … · 12/2/2011 · Interoperability Report - Ascom i62 – Cisco WLC AP 1130 ... Cisco WLC, AP 1130/1230/1240/1140/1250/1260/3500 ... During

Interoperability Report - Ascom i62 – Cisco WLC AP 1130/1230/1240/1140/1250/1260/3500. 1 2011-12-02

INTEROPERABILITY REPORT Ascom i62 Cisco WLC, AP 1130/1230/1240/1140/1250/1260/3500 Version 7.0.220 (MR2)

Ascom, Gothenburg

Oct 2011

[ ]


TABLE OF CONTENT: INTRODUCTION ........................................................................................................................ 3

About Ascom .......................................................................................................................... 3 About Cisco ............................................................................................................................ 3

SITE INFORMATION ................................................................................................................. 4 SUMMARY AND TEST RESULTS ............................................................................................. 5

Compatibility information ......................................................................................................... 7 General conclusion ................................................................................................................. 7

APPENDIX A: TEST CONFIGURATIONS .................................................................................. 8 Cisco WLC 5508 Version 7.0.220 ........................................................................................... 8

Security settings (PSK) ....................................................................................................... 8 PEAP-MSCHAPv2 using an external authentication server. ................................................ 9 EAP-FAST using an internal authentication server. ........................................................... 11 General settings (QoS, Radio)........................................................................................... 13

Ascom i62 ............................................................................................................................. 18 Innovaphone IP6000 (IP PBX) .............................................................................................. 20

APPENDIX B: DETAILED TEST RECORDS ............................................................................ 21


INTRODUCTION This document describes necessary steps and guidelines to optimally configure the Cisco WLC platform with Ascom i62 VoWiFi handsets.

The guide should be used in conjunction with both Cisco and Ascoms configuration guide(s).

About Ascom

Ascom Wireless Solutions (www.ascom.com/ws) is a leading provider of on-site wireless communications for key segments such as hospitals, manufacturing industries, retail and hotels. More than 75,000 systems are installed at major companies all over the world. The company offers a broad range of voice and professional messaging solutions, creating value for customers by supporting and optimizing their Mission-Critical processes. The solutions are based on VoWiFi, IP-DECT, DECT, Nurse Call and paging technologies, smartly integrated into existing enterprise systems. The company has subsidiaries in 10 countries and 1,200 employees worldwide. Founded in the 1950s and based in Göteborg, Sweden, Ascom Wireless Solutions is part of the Ascom Group, listed on the Swiss Stock Exchange.

About Cisco

Cisco, (NASDAQ: CSCO), the worldwide leader in networking that transforms how people connect, communicate and collaborate, this year celebrates 25 years of technology innovation, operational excellence and corporate social responsibility. Information on Cisco can be found at http://www.cisco.com. For ongoing news, please go to http://newsroom.cisco.com.

http://www.ascom.com/en/index/group/company/divisions/wireless-solutions.htm

http://www.cisco.com/

http://newsroom.cisco.com/


SITE INFORMATION

Test Site: Ascom US 598 Airport Blvd, Suite 300 Morrisville, NC, US-27560 USA Participants: Karl-Magnus Olsson, Ascom HQ, Raleigh US TEST TOPOLOGY


SUMMARY AND TEST RESULTS Keep in mind that security options and power save modes were adjusted according to requirements in individual test cases. Please refer to appendix A for information regarding device configuration. All test were done to according to the Cisco Assurewave test plan. Please refer to Appendix B for detailed results and additional test cases. WLAN Controller Features

High Level Functionality Result WLAN Security Open and L2/L3 Roaming Pass* WLAN Security WPA-PSK Pass* WLAN Security WPA2-PSK Pass* WLAN Security WPA-EAP-FAST Pass* WLAN Security WPA-EAP-FAST-CCKM Pass* WLAN Security EAP-TLS Pass* WLAN Security PEAP-MSCHAP Pass* Multiple phones associate and register with PBX Pass Multiple VoIP -VoWLAN calls with background data traffic Pass Multiple phones Layer 2 roaming Pass Calls from WMM phones Pass Voice longevity testing Pass WMM Prioritization Pass Verify maximum number of calls in for WMM default, optimized voice optimized voice -video EDCA modes

Pass**

*) L2 roaming only **) 18 phones OK on one single access point. (18 was not the capacity limit)


Software Versions:

• Cisco WLC 5508 version 7.0.220 • AP1130/1230/1240/1140/1250/1260/3500 • Ascom i62, v2.3.11

Signaling Protocol: • SIP, Innovaphone IP6000 used as SIP server. Version 7 hotfix 15

Configuration of WLAN System:

• Beacon Interval: 100ms • DTIM Period: 5 • 802.11b/g/n • 802.11a/n • WMM/ U-APSD Enabled • 802.11d Regulatory Domain: World mode

Ascom i62 Configuration:

• World Mode Regulatory Domain set to World mode. • IP DSCP for Voice: 0x2E (46) – Expedited Forwarding • IP DSCP for Signaling: 0x1A (26) – Assured Forwarding 31 • Transmit Gratuitous ARP: Enable


Known issues

• If AP 1140/1250/1260/3500 is used together with AP1230 or AP1240, the system must be configured to use a Beacon Interval of 102tu*. This is due to a limitation in 1140/1250/1260/3500 that prevents the APs from sending beacons with the interval of100tu. *) Beacon period is configured in time units (tu). One time unit equals 1024microseconds

Compatibility information All tests were done on AP3502I and AP3502E (Internal and external antennas) and with AP1242. By testing AP3502 and AP1242 we cover the two chipset types used by cisco. We therefore ensure compatibility/interoperability with all the access points listed below given that they run the software tested. Supported access points with Cisco WLC version 7.0.220: AP1130 AP1230 AP1240 AP1140 AP1250 AP1260 AP3500 Supported controller platforms with Cisco WLC version 7.0.220: 21xx WLC 440x WLC 550x WLC WISM (Wireless services module) 3750G Integrated WLC

General conclusion Overall the outcome of interoperability verification, including association, authentication and roaming produced good results. If U-APSD shall be used in the handset it is very important that the WMM parameters in the Cisco WLC are set correctly since U-APSD handles a bi-directional data stream where the up and downlink must be transmitted within the same EDCA Access Category. To use U-APSD, make sure to set QoS to Platinum for the current WLAN profile and set WMM to Allowed. Also set EDCA profile for 802.11b/g to "Voice Optimized" and disable low latency MAC.


APPENDIX A: TEST CONFIGURATIONS

Cisco WLC 5508 Version 7.0.220 In the following chapter you will find screenshots and explanations of basic settings in order to get a Cisco WLC WLAN system to operate with an Ascom i62. Please note that security settings were modified according to requirements in individual test cases.

Security settings (PSK) Example of how to configure the system for PSK (WPA2-AES)

Security profile WPA2-PSK, AES encryption


PEAP-MSCHAPv2 using an external authentication server. Example of how to configure the system for .1X authentication

Configuration of authentication using external Radius sever, 802.1X (Step 1). In this example is WPA2-AES/CCMP used.

Configuration of authentication using external Radius sever (Step 2). Select the server to use. The server is configured under tab Security/Radius. See configuration of server below.


Configuration of authentication using external Radius sever (Step 3). The IP address and the secret must correspond to the IP and the credential used by the Radius server. Tests were performed with FreeRadius. Note. Depending on which Authentication method used it might be necessary to add a certificate into the i62. PEAP-MSCHAPv2 requires a Root certificate and EAP-TLS requires both a Root certificate and a client certificate. Note. Refer to the i62 section in Appendix A for matching handset configurations.


EAP-FAST using an internal authentication server.

Configuration of authentication using internal Radius sever and EAP-FAST (Step 1). In this example is WPA2-AES/CCMP used.

Configuration of authentication using internal Radius sever and EAP-FAST (Step 2). Check the box “Local EAP Authentication” and choose your local EAP profile (created in step 4).


Configuration of authentication using internal Radius sever and EAP-FAST (Step 3). Create a local user and assign a password.

Configuration of authentication using internal Radius sever and EAP-FAST (Step 3). Create a local EAP profile and choose the EAP method to use.


General settings (QoS, Radio)

Make sure that WMM policy is set to required and Quality of Service (QoS) platinum profile is selected.

Disable “coverage Hole Detection” and “Session timeout”. Set DTIM period to Ascom recommended value 5. DTIM value 5 values are recommended in order to allow maximum battery conservation without impacting the quality. Using a lower DTIM value is possible but will reduce the standby time slightly.


Channel configuration. See picture below for additional information.

Ascom recommended settings for 802.11b/g/n are to only use channel 1, 6 and 11. For 802.11a/n use channels according to the infrastructure manufacturer and country regulations. Note. For 802.11a/n, if using channels where DFS is mandatory roaming performance will be degraded due passive scan only. Ascoms recommendation is therefore to avoid usage of DFS channels. Note. For 802.11a/n, if enabling more than 8 channels the roaming performance will be degraded. Note for 802.11an: Using 40 MHz channels will reduce the number of non DFS channels to only 2 in ETSI regions.


The default data rate set will work just fine, however Ascom recommends disabling the lowest speeds and have 6mbits as lowest supported speed. To further optimize performance it is recommended to disallow 802.11b clients to associate by setting the 6 Mbps or 12Mbps rate to mandatory in the 802.11g configuration. Note. Refer to the section “Known Issues” fore details about beacon period if you have system with a mixed environment of 1130/1230/1240 and 1140/1250/1260/3500


Ascom do not support Dynamic Channel Assignment.

Ascom do not support Dynamic Power Assignment.


Ascom recommends “EDCA Profile”: Voice Optimized and latency MAC to be disabled. Note. Using EDCA Profile “WMM” is possible but “Voice Optimized” is to prefer when voice clients are present in the system.

Depending on the infrastructure (switches), ”Protocol Type” may have to be disabled.


Ascom i62 Recommended i62 setting.

Network settings for WPA2-PSK


Network settings for .1X authentication (PEAP-MSCHAPv2)

If .1X Authentication is used a root certificate has to be uploaded to the phone by “right clicking” - > Edit certificates


i62 configuration: See attached file (i62 templates.tpl) for i62 configuration. Innovaphone IP6000 (IP PBX) The Innovaphone IP6000 was configured with a static IP address of 192.168.0.50. Signaling is less relevant here since testing homes in on interoperability in relation to the WLAN infrastructure and not features of the IP PBX. During the tests the IP6000 also was used as DHCP server. IP6000 configuration: See attached file (complete-IP6000-08-03-a6.txt) for IP6000 configuration


APPENDIX B: DETAILED TEST RECORDS VoWIFI Pass 33 Fail 0 Comments 0 Untested 9 Total 42 See attached file (AWP_TC_Results_Ascom.xlsx) for detailed test results. Please refer to Cisco Assurewave or contact Ascom support for details about the test specification.


Document History Rev Date Author Description PA 2011-08-01 SEKMO Draft 1 PB 2011-08-22 SEKMO Draft 2 R1 2011-11-09 SEKMO Minor changes Rev 1 R2 2011-12-02 SEKMO Minor correction R2

Documents

INTEROPERABILITY REPORT Ascom i62 Cisco … · 12/2/2011 · Interoperability Report - Ascom i62 – Cisco WLC AP 1130 ... Cisco WLC, AP 1130/1230/1240/1140/1250/1260/3500 ... During