6 n Handbook of IPv4 to IPv6 Transition
Real-time applications: To provide better support for real-time traffic (e.g.,
VoIP), IPv6 includes “labeled flows” in its specifications. By means of this
mechanism, routers can recognize the end-to-end flow to which transmitted
packets belong. is is similar to the service offered by Multi-Protocol Label
Switching (MPLS), but it is intrinsic with the IP mechanism rather than an
add-on. Also, it preceded this MPLS feature by a number of years.
Plug-and-play: IPv6 includes a plug-and-play mechanism that facilitates
the connection of equipment to the network. e requisite configuration is
automatic.
Mobility: IPv6 includes more efficient and enhanced mobility mechanisms,
particularly important for mobile networks ...