Computer Networking › Section G · Wireless and mobile networks › Topic G.5
Mobility management: principles
An IP address says both who a device is and where it is attached. When a phone moves between networks mid-conversation, those two meanings pull apart, and the network needs a plan to find the device and keep its traffic flowing.
In this topic
- How mobile is mobile?
- Why changing address breaks connections
- Home networks and visited networks
- The idea that does not scale
- Indirect routing through the home network
- Worked example: following a tunnelled datagram
- The triangle routing problem
- Worked example: the cost of the detour
- Direct routing
- Common mistakes to avoid
- Key takeaways
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