Secure Roaming in 802.11 Networks

Chapter 10

when it already provides a vertical-roaming function. This reuse minimizes development on

3GPP and 3GPP2 platforms required for the sake of 802.21 compliance. Similarly, the reuse

of extant 802-family solutions is desirable. For example, Neighbor Reports that 802.21 defines

as part of its information service are based on the Neighbor Reports of 802.11k that we

described in Chapter 9. To the extent that the required radio-resource management functions

already exist within one of those media interfaces, the 802.21 standard will provide a map-

ping to that existing function. In those cases where the underlying technology does not yet

offer