QoS API

• how to notify application of changes: call-back functions
• what information do applications require?
  • all network parameters available via SNMP
  • reduced set of derived parameters: round-trip time to base station, CPU load averages, packets send/received and error rates for last 30 seconds, 1 minute, and 5 minutes
  • host characteristics (type and speed of CPU, list of devices)

Client

Server (local)

Main Thread

Secondary Thread

Application

Exception Handler

init (handler fn)

register(attrib,val,operator)

block

emit

Client

Info

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