ppt title

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DirectPlay Future Features Robert Di
BenedettoProgram ManagerDirectPlay Microsoft
Corporation
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Disclaimers

• Possible features
• Still investigating feasibility
• May or may not ever ship in a future release
• Welcome feedback / comments

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Instrumentation

• Provide WMI hooks to allow for external resource
  monitoring
• Provide hooks to allow for in-game resource
  monitoring

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QoS (Quality of Service)

• Provide a service level for DPlay performance
• Dependency on required hardware

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Security

• Packet encryption and signing (key exchange)
• Denial of service attacks
• Blacklisting
• Traffic monitoring

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Universal Game Time

• Allows for time synchronization among clients

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Multicast

• Allows for efficient packet distribution (I.e.
  real time feeds)
• Many dependencies (ISP, security, session
  negotiation)

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SOCKS 5

• Needed to support additional firewall/NAT
  traversal
• Achieving reasonable adoption (IIS supports it
  for non Winsock Proxy clients)

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Single Threaded Version

• Enables porting to any non-multithreaded platform
  (i.e., Xbox, PS2)

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Clustering

• Enables load sharing across multiple physical
  servers
• Provides a fail over mechanism

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NAT / Firewall Traversal

• Support for NATs employing UPnP gateway
  extensions
• Support for multiple NAT scenarios

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IPv6

• Enabled via Service Provider interface
• Long term solution to NAT issues

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Dynamic CODEC switching

• CODEC usage under application control
• Typically based on latency / network metrics

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Voice Ignoring

• Allows for recipient to selectively mute incoming
  voice streams

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Voice Warping

• Actually possible today using DMOs (DirectX
  Media Object)
• http//msdn.microsoft.com/library/psdk/directx/DX8
  _C/ds/dmo/ref_intro.htm
• Possible integration of third party libraries

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WAV Injection

• Allows for a wav file to be included in the audio
  stream

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Feedback / Comments

• robertdi_at_microsoft.com
• directx_at_microsoft.com
• microsoft.public.directx.networking
• microsoft.public.win32.programmer.directx.networki
  ng

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Questions?