User Manual

Version 3.03 SPEEDLAN 9000 Series Installation and Operation User Guide
1-12 Introduction
Why SPEEDLAN Outperforms Other Routing Equipment
The SPEEDLAN 9000 outperforms other routers because the SPEEDLAN 9000 routing
table broadcasts only the information that changed, such as when new routes are
added or old routes are removed from the network. This information is sent to the
router's immediate neighbors along the most efficient path to the end destination. This
process helps conserve bandwidth. If an existing path is modified in some way, by the
addition or deletion of a router, a SPEEDLAN 9000 using the Mesh protocol can
monitor its routing table to decide if a secondary path should be taken. One could call
this a "self-healing" network, which means it finds a secondary route through the
network without manually reprogramming the routers.
Network Expansion: Connecting Buildings in a SPEEDLAN
9000 Network
Figure 1-6: Expanding the network
Using a mix of wireless technologies, SPEEDLAN makes it possible to design a Wireless
Metropolitan Area Network (WMAN) capable of delivering high-speed Internet services
to a variety of buildings. In Figure 1-6 on page 1-12, the ISP has installed three polling
base stations, two high-speed microwave links, and several SPEEDLAN 9000 routers.
Self-healing Mesh Network
Mesh Link
Mesh Pico Cell
SectorPRC Base Station Link