User manual

SM User Manual January 2004
Software Release 4.1
4.7.9
Canopy Enterprise MIB .....................................................................................32
4.7.10 Module Parameters for SNMP Implementation.................................................33
4.7.11 Objects Defined in the Canopy Enterprise MIB.................................................33
4.7.12 Traps Provided in the Canopy Enterprise MIB ..................................................40
4.7.13 MIB Viewers.......................................................................................................41
4.8 NAT, DHCP Server, DHCP Client, and DMZ in SM........................................................41
4.8.1 NAT....................................................................................................................42
4.8.2 DHCP.................................................................................................................42
4.8.3 NAT Disabled.....................................................................................................42
4.8.4 NAT with DHCP Client and DHCP Server.........................................................43
4.8.5 NAT with DHCP Client.......................................................................................44
4.8.6 NAT with DHCP Server .....................................................................................45
4.8.7 NAT without DHCP............................................................................................46
4.8.8 DMZ ...................................................................................................................46
5 SITE PLANNING .......................................................................................................................47
5.1 Selection of SM Types and Passive Reflectors ..............................................................47
5.2 Specific Mounting Considerations...................................................................................47
5.2.1 Lightning Protection ...........................................................................................48
5.2.2 Electrical Requirements.....................................................................................48
5.3 General RF Considerations.............................................................................................48
5.3.1 Vertical Beam Width ..........................................................................................48
5.3.2 Radio Horizon ....................................................................................................49
5.3.3 Antenna Downward Tilt .....................................................................................50
5.3.4 Fresnel Loss ......................................................................................................51
5.3.5 Free Space Path Loss .......................................................................................53
5.3.6 Loss Due to Foliage...........................................................................................55
5.3.7 Carrier-to-Interference Ratio..............................................................................55
5.4 Canopy Component Proliferation....................................................................................56
5.4.1 Subscriber Modules...........................................................................................56
5.4.2 Access Point Modules .......................................................................................56
5.4.3 Access Point Clusters........................................................................................56
5.4.4 Backhaul Modules .............................................................................................56
5.5 AP Update of SM Software Release...............................................................................56
5.6 Channel Plans.................................................................................................................58
5.6.1 Physical Proximity .............................................................................................58
5.6.2 Spectrum Analysis .............................................................................................59
5.6.3 Power Reduction to Mitigate Interference .........................................................59
5.6.4 2.4-GHz Channels .............................................................................................60
5.6.5 5.2-GHz Channels .............................................................................................61
5.6.6 5.7-GHz Channels .............................................................................................62
5.6.7 Example Channel Plans for AP Clusters...........................................................63
5.6.8 Multiple Access Points Clusters ........................................................................64
6 IP NETWORK PLANNING........................................................................................................66
6.1 General IP Addressing Concepts....................................................................................66
6.1.1 IP Address .........................................................................................................66
6.1.2 Subnet Mask......................................................................................................66
6.1.3 Example IP Address and Subnet Mask.............................................................66
6.1.4 Subnet Classes..................................................................................................66
6.2 Dynamic or Static Addressing.........................................................................................67
6.2.1 When a DHCP Server is Not Found ..................................................................67
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