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asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
IPv6 Videophone with IPv6 Videophone with Windows Driver ModelWindows Driver Model
By By Gopinath Rao SinniahGopinath Rao Sinniah
Asian Institute of Medicine, Asian Institute of Medicine, Science and Technology Science and Technology
(AIMST)(AIMST)
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Current Conferencing ToolsCurrent Conferencing Tools WDMWDM
Video captureVideo capture Audio captureAudio capture
QoS and Flow LabelQoS and Flow Label IPv6 Address bindingIPv6 Address binding Use of Flow Label in IPv6Use of Flow Label in IPv6 Types of CommunicationTypes of Communication Videophone using winsock2Videophone using winsock2 Videophone using multicastVideophone using multicast The flow of packets using WDM and IPv6 The flow of packets using WDM and IPv6 Videophone to mobile phone (3G/4G)Videophone to mobile phone (3G/4G)
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Current ToolsCurrent Tools
Vic & RatVic & RatHVIP6 (High-quality Video conferencing HVIP6 (High-quality Video conferencing
platform based on IPv6 multicast) platform based on IPv6 multicast) Gnome MeetingGnome Meeting
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Windows for Driver Model (WDM)Windows for Driver Model (WDM)
Advantages of WDM Video CaptureAdvantages of WDM Video Capture 32 bit address32 bit address Synergy between DirectShow and CSASynergy between DirectShow and CSA Single class driver architectureSingle class driver architecture Television tuner, input selection and support Television tuner, input selection and support
for fieldsfor fields One driver for all Windows OSOne driver for all Windows OS
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Windows Driver Model (WDM)Windows Driver Model (WDM)
Video CaptureVideo Capture
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Audio Capture in WDMAudio Capture in WDM Audio processing is performed in kernel modeAudio processing is performed in kernel mode Kernel streaming is built on top of WDMKernel streaming is built on top of WDM
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
What is QoSWhat is QoSA video phone application requires:A video phone application requires: The cost is not prohibitiveThe cost is not prohibitive There is a network path available to the other There is a network path available to the other
partyparty The user knows the IP address of the terminal The user knows the IP address of the terminal
the other userthe other user The end terminals can reassemble the data The end terminals can reassemble the data
packets into a sensible orderpackets into a sensible order The end terminals understand how to handle The end terminals understand how to handle
errors in packetserrors in packets The packets arrived at the minimum length of The packets arrived at the minimum length of
timetime
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Use of Flow Label in IPv6 headerUse of Flow Label in IPv6 header
Advantages of using flow labelAdvantages of using flow label Decreases the average processing load of the Decreases the average processing load of the
network routersnetwork routers Facilitates end-to-end IP level security Facilitates end-to-end IP level security
mechanismmechanism Reserving resources using flow label reduce Reserving resources using flow label reduce
problem caused by frequent route changesproblem caused by frequent route changes Facilitate implementation of QoS based Facilitate implementation of QoS based
routingrouting
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
The use of 20-bit flow label for QoSThe use of 20-bit flow label for QoS Will ensure smooth transition on video and audio Will ensure smooth transition on video and audio
packets without degradationpackets without degradation Will ensure adequate latency levelWill ensure adequate latency level Requires special handling by routers (a separate Requires special handling by routers (a separate
project)project)
Still in the implementation levelStill in the implementation level
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
IPv6 Address bindingIPv6 Address binding Most of the nodes will have more than Most of the nodes will have more than
1 IPv6 address1 IPv6 address Link Local AddressLink Local Address Global Unicast AddressGlobal Unicast Address
Choice of source address based on Choice of source address based on destination addressdestination address
Will integrate the use of “default Will integrate the use of “default address selection for IPv6” – RFC address selection for IPv6” – RFC 3484 in future3484 in future
1.Destination address : link local
Source Address : link local address
2.Destination address : not link localSource Address : global address
Types of CommunicationTypes of Communication Initially the system developed using point to point (unicast)Initially the system developed using point to point (unicast)
Multicast transmission is still under developmentMulticast transmission is still under developmentMulticast in a LAN is not a problemMulticast in a LAN is not a problemMulticast in WAN - need to use appropriate Multicast in WAN - need to use appropriate multicast multicast
routingrouting
IPv6 Client IPv6 Client
LAN
Send
Receive Send
Receive
IPv6 Client
IPv6 Client
IPv6 Client
IPv6 Client
Bridge
Cloud
Video
Audio
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
How does IPv6 Videophone works?How does IPv6 Videophone works?
Videophone uses both TCPv6 and UDPv6 Videophone uses both TCPv6 and UDPv6 TCPv6 for exchanging information between 2 TCPv6 for exchanging information between 2
machinesmachinesUDPv6 for transmitting video and audio UDPv6 for transmitting video and audio
packetspackets
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
IPv6 Videophone using winsock2IPv6 Videophone using winsock2
Uses winsock2 architecture (RFC 2533)Uses winsock2 architecture (RFC 2533) WSASocket() is used as the predefined socket WSASocket() is used as the predefined socket
objectsobjects Create socketCreate socket
Optimization on WSASocket for receiving Optimization on WSASocket for receiving continuous audio/video packet continuous audio/video packet
m_hSocket=WSASocket (AF_INET6, SOCK_DGRAM, IPPROTO_UDP, NULL, 0,0);
if (WSAAsyncSelect(m_hSocket, mesg_ptr->m_hWnd, WM_SOCKET_EVENT, IEvent) == SOCKET_ERROR)
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
IPv6 Videophone using multicastIPv6 Videophone using multicast Send multicast packet by setting IPv6 multicast address in Send multicast packet by setting IPv6 multicast address in
sendto () functionsendto () function
To receive multicast packet, the following is used after the To receive multicast packet, the following is used after the creation of WSASocketcreation of WSASocket
This sends ICMPv6 multicast Listener Discovery (MLD) to This sends ICMPv6 multicast Listener Discovery (MLD) to the multicast groupthe multicast group
sendto(m_sndSocket, buffer, sendsize, 0, (LPSOCKADDR) &m_sendtoadd, add_size)
Multicast address :ff01:0:0:0:0:0:0:2
struct ipv6_mreq imr6;Imr6.ipv6mr_interface=0;Setsockopt(m_hSocket, IPPROTO_IPV6, IPV6_JOIN_GROUP, (char *) &imr6, sizeof(imr6));
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Flow of PacketFlow of Packet
Capture of Video / Audio using WDM
Compressed Video / Audio using WDM
IPv6 Socket creation
IPv6 Address Selection
Link Local Address / Unicast
AddressMulticast address
Marking of packets using IPv6 flow
label (QoS)
3G / 4G Transition server
IPv6 Network
IPv6 Network
3G / 4G network
3G / 4G network
IPv6 Client
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
The communication The communication
Node A request connection from node B Node A request connection from node B (TCPv6)(TCPv6)
Node A sends compressed data to node B Node A sends compressed data to node B (UDPv6)(UDPv6)
Node B decompress and playbackNode B decompress and playback
Web camWeb cam
Accept/Deny
Hub
Connect
IPv6 Node A IPv6 Node B
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Capture Audio/Video using WDM
Compressed Audio/Video using WDM
Sender
Receiver
Send
Flow label and traffic class will check the traffic and ensure it is sending to the proper address.
Decompressed Audio/Video using WDM
Playback Audio/Video using WDM
Node A
Node B
Future Extension – pc to mobile Future Extension – pc to mobile phone (3G/4G) in IPv6 modephone (3G/4G) in IPv6 mode
External services (IPv6)
Operator services/ intanet(IPv6)
GGSN
GGSN
GPRS Core
AP1IPv6
AP2IPv6
AP3IPv4
backbone (IPv4)
Backbone (IPv6
SGSN
SGSNIPv4 Network
Native IPv4 host
MT in IPv6mode
IPv6 PDPcontext
IPv4 PDPcontext
Edge Router
Dual stack host
Dual StackRouter
MT in IPv4mode
Dual stackmobile
terminals
IPv6/IPv4gateway
6to4 tunnel
6in4 tunnel
Server
Translation server
IPv6 Videophone
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
ConclusionConclusion
The system is not much different from other The system is not much different from other Video Conferencing toolsVideo Conferencing tools
The use of IPv6 features are primary objectiveThe use of IPv6 features are primary objective Flow labelFlow label Mobile communicationMobile communication
System is being developed to support:System is being developed to support: QoS using flow label and traffic classQoS using flow label and traffic class Session Initiation Protocol (SIP)Session Initiation Protocol (SIP) Mobile & wireless communicationMobile & wireless communication
asian institute of medicine, science and technology (aimst)asian institute of medicine, science and technology (aimst)
Thank YouThank You
Gopinath Rao SinniahGopinath Rao Sinniah
[email protected]@aimst.edu.my