User guide

Contents Canopy System User Guide
iv
pmp-0229pmp-0229 (Mar 2013)
When to Switch from 2X to 1X Operation Based on 60% Link Efficiency ............................................................. 133
Considering Frequency Band Alternatives ...................................................................................................................... 134
900-MHz Channels ................................................................................................................................................... 135
2.4-GHz Channels .................................................................................................................................................... 135
4.9-GHz OFDM Channels ........................................................................................................................................ 136
5.2-GHz Channels .................................................................................................................................................... 136
5.4-GHz FSK Channels ............................................................................................................................................ 137
5.4-GHz OFDM Channels ........................................................................................................................................ 138
5.7-GHz Channels .................................................................................................................................................... 139
Channels Available for PTP 400 and PTP 600 Radios ............................................................................................. 140
Example Channel Plans for FSK AP Clusters .......................................................................................................... 140
Multiple FSK Access Point Clusters ........................................................................................................................ 142
Multiple OFDM Access Point Clusters .................................................................................................................... 143
Selecting Sites for Network Elements .............................................................................................................................. 144
Surveying Sites ......................................................................................................................................................... 145
Assuring the Essentials ............................................................................................................................................. 145
Clearing the Radio Horizon ...................................................................................................................................... 147
Calculating the Aim Angles ..................................................................................................................................... 148
Co-locating Modules ........................................................................................................................................................ 149
Deploying a Remote AP .................................................................................................................................................. 150
Remote AP Performance .......................................................................................................................................... 151
Example Use Case for RF Obstructions ................................................................................................................... 152
Example Use Case for Passing Sync ........................................................................................................................ 153
Physical Connections Involving the Remote AP ...................................................................................................... 153
Diagramming Network Layouts ....................................................................................................................................... 154
Accounting for Link Ranges and Data Handling Requirements .............................................................................. 154
Avoiding Self Interference ....................................................................................................................................... 154
Avoiding Other Interference ..................................................................................................................................... 156
Chapter 13: Engineering Your IP Communications .................................................... 157
Understanding Addresses ................................................................................................................................................. 157
IP Address ................................................................................................................................................................ 157
Dynamic or Static Addressing ......................................................................................................................................... 157
When a DHCP Server is Not Found ......................................................................................................................... 158
Network Address Translation (NAT) ............................................................................................................................... 158
NAT, DHCP Server, DHCP Client, and DMZ in SM .............................................................................................. 158
NAT and VPNs ........................................................................................................................................................ 163
Developing an IP Addressing Scheme ............................................................................................................................. 164
Address Resolution Protocol .................................................................................................................................... 164
Allocating Subnets ................................................................................................................................................... 164
Selecting Non-routable IP Addresses ....................................................................................................................... 165
Translation Bridging ........................................................................................................................................................ 165
Chapter 14: Engineering VLANs ................................................................................. 167
Special Case VLAN Numbers ......................................................................................................................................... 167
SM Membership in VLANs ............................................................................................................................................. 168