Nortel Networks 1 manual - page 4

Voice over Wireless LAN Solution Guide v1.0 December 2005
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Page 4
TABLE OF CONTENTS
1. EXECUTIVE SUMMARY................................................................................................................. 6
1.1 CHALLENGES................................................................................................................................. 6
1.1.1 High overhead of 802.11.......................................................................................................... 6
1.1.2 Rate scaling and variable capacity...........................................................................................6
1.1.3 Power adjustments and variable capacity................................................................................ 7
1.1.4 Quality of Service (QoS)........................................................................................................... 7
1.2 SCOPE OF DOCUMENT.................................................................................................................... 8
1.2.1 Products included..................................................................................................................... 8
1.2.2 Infrastructure components........................................................................................................8
1.2.3 Configurations not included.....................................................................................................8
2. NORTEL VOWLAN SOLUTION..................................................................................................... 8
2.1 APPLICATIONS............................................................................................................................... 9
2.1.1 WLAN Handset 2210/11/12 Voice............................................................................................ 9
2.1.2 IP Softphone 2050.................................................................................................................... 9
2.1.3 Mobile Voice Client (MVC) 2050............................................................................................. 9
2.1.4 MCS Client............................................................................................................................. 10
2.1.5 WLAN Handset 2211 Push-to-Talk (PTT).............................................................................. 10
2.1.6 WLAN Handset 2210/11/12 text messaging............................................................................10
2.2 NETWORK ARCHITECTURE........................................................................................................... 10
2.2.1 Basic topologies......................................................................................................................10
2.2.2 Network design constraints.....................................................................................................16
2.2.3 High availability designs........................................................................................................ 26
2.3 SECURITY.................................................................................................................................... 29
2.3.1 WLAN Handset 2210/11/12 security features......................................................................... 30
2.3.2 IP Softphone 2050 and MCS Client security features.............................................................30
2.3.3 MVC 2050 security features................................................................................................... 30
2.3.4 Minimum security recommendations for WLAN 2300............................................................ 30
2.4 PERFORMANCE AND SCALABILITY............................................................................................... 31
2.4.1 WLAN AP 2330 Scalability.....................................................................................................31
2.4.2 Battery life conservation......................................................................................................... 35
2.4.3 WLAN Telephony Manager 2245 scalability.......................................................................... 35
2.5 QOS............................................................................................................................................. 36
2.5.1 WLAN Security Switch 2300 and WLAN AP 2330..................................................................36
2.5.2 Ethernet Switch family............................................................................................................ 40
2.5.3 Ethernet Routing Switch 5510/5520....................................................................................... 43
2.5.4 Ethernet Routing Switch 8300/8600....................................................................................... 45
2.5.5 QoS summary..........................................................................................................................46
2.6 WLAN HANDSET 2210/11/12, IP SOFTPHONE 2050, MVC 2050, AND MCS CLIENT SUPPORT
ON THE SAME NETWORK............................................................................................................... 46
2.6.1 Issues...................................................................................................................................... 46
2.6.2 Recommendations................................................................................................................... 48
3. INFRASTRUCTURE SUPPORT.....................................................................................................48
3.1 NETWORK MANAGEMENT............................................................................................................ 48
3.1.1 Assessment.............................................................................................................................. 49
3.1.2 Predeployment........................................................................................................................ 51
3.1.3 Monitoring and reporting....................................................................................................... 51
3.1.4 Element management..............................................................................................................56
3.2 DHCP SERVER............................................................................................................................ 57
3.2.1 WLAN AP 2330.......................................................................................................................57