Slow down Android emulator's internet speed

gistfile1.sh

$ telnet localhost 5554
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Android Console: type 'help' for a list of commands
OK
network status
Current network status:
  download speed:          0 bits/s (0.0 KB/s)
  upload speed:            0 bits/s (0.0 KB/s)
  minimum latency:  0 ms
  maximum latency:  0 ms
OK
network speed 3g
OK
network status
Current network status:
  download speed:       3000 bits/s (0.4 KB/s)
  upload speed:         3000 bits/s (0.4 KB/s)
  minimum latency:  0 ms
  maximum latency:  0 ms
OK