New trends in satellite communication network - INEO - ICAO
New trends in satellite communication network - INEO - ICAO
New trends in satellite communication network - INEO - ICAO
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IP vs Frame Relay<br />
Frame Relay is a layer 2 protocol, whereas IP is at layer 3<br />
ISO level<br />
Encapsulation<br />
Efficiency<br />
G729 data rate<br />
Advantages<br />
Drawbacks<br />
- Flexibility of configuration<br />
- Mesh structure with automatic rout<strong>in</strong>g (static or dynamic)<br />
- Low price (widespread)<br />
- Bandwidth not optimized<br />
- QOS<br />
IP<br />
3<br />
packet<br />
Low<br />
27 kbps<br />
Frame Relay<br />
frame<br />
High – 85% for voice<br />
11 kbps<br />
- Optimization of space segment<br />
- QOS<br />
- Supports various protocols (async, sync, E&M)<br />
- Hardware cost<br />
- Proprietary of access device type<br />
2<br />
July 2011 | REDDIG workshop | 46
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