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Computer Networks 2014-09-22
2014/09/22 Computer Networks Class Note
Circuit Switching FallBack (CSFB)
LTE networks fallback to 3G Network circuit switching while calling and sending/receiving SMS because of two reasons:
- Technical issue
- Business concern
Path
Routed
- Stateless (connection-less)
- Slower
- Multiple memory access
Switched
- Stateful (connection-oriented)
- Faster
- One memory access
Q & A
- Q: What construct connectivity?
- A: Nodes and links