
216 ◾ Lauren Collins
Such networks also provide layer 2 and layer 3 virtual private network
(VPN) services to customers. So, other locations utilize microwave links
as an eective, high- speed transport solution.
11.6 SUMMARY
is chapter identies several cellular wireless systems, covers deploy-
ment approaches for each system, and describes the benet of delivering
an all- IP access system. ere is still a need to deliver legacy trac on top
of IP trac, so tunneling the legacy trac over the GAN is generally the
best practice. e two mobile broadband systems, WiMAX and EUTRAN,
share downlink characteristics as well as oer scalable channel ...