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Computer Networks 2014-09-24
2014/09/24 Computer Networks Class Note
circuit hard-state soft-state stateless
switching switching switching routing
stateful|---------------+--------------+---------------|stateless
POTS | ATM MPLS Internet
| (packet
C/S | P/S switching)
- ISPs change part of backbone into MPLS
- store and forward
- when a packet arrived
- store in a queue (waiting time)
- waiting to be processed
- queue for output port (waiting time)
- transmitted (transmission time)
- ~~~~ (propagation time)
-
how fast I can speak: transmission time
- jitter: latency variation
- throughput: how much you can transmit