video-conferencing as an nren service

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Rob Bristow, NREN Exchange Fellow, TENET 23/10/2014 Video-conferencing as an NREN Service

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Briefing for senior IT leaders in South African Higher Education at the Spring 2014 ASAUDIT Institutional Conference

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Page 1: Video-conferencing as an NREN Service

Rob  Bristow,  NREN  Exchange  Fellow,  TENET  

23/10/2014   Video-conferencing as an NREN Service

Page 2: Video-conferencing as an NREN Service

Introductions    

» Who  am  I?  ›  On  secondment  from  Jisc  in  the  UK  for  two  years  –  Part  of  Jisc  Futures  division  –  Worked  at  Jisc  on  video-­‐conferencing  projects  

›  What  is  Jisc?  –  UK  NREN  parent  company  –  Janet  is  the  TENET  equivalent  –  Jisc  runs  services  and  development  programmes  in  all  areas  of  technology  

and  tertiary  education  

›  What  do  I/Jisc  know  about  video-­‐conferencing  and  education?    –  Quite  a  lot!  

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Teliris  Express  Telepresence  conference  

What  is  Video  enabled  collaboration?  

»  Anything  that  involves  collaboration  and  video  (but  may  also  include  other  things)  

»  From  Telepresence  to  the  desktop  

»  Room-­‐based  conferencing  

»  Desktop  conferencing    »  Web  conferencing  

»  These  things  are  now  converging  –  mobile  is  here  

»  The  goal  is  a  system  that  spans  from  web-­‐conferencing  to  Tele-­‐Presence  

»  How  to  join  things  up?  

»  Interoperability!  Desktop  Conferencing  using  Vidyo  

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What’s  wrong  with  conferencing?  

»  The  room  is  booked  out  or  locked  

»  The  support  people  have  gone  home  

»  The  equipment  is  out  of  commission  

»  There  is  echo  on  the  audio  feed  

»  The  screen  only  shows  tiny  thumbnails  of  participants  

»  The  network  is  up  and  down  and  the  video  quality  makes  this  system  unusable  

»  I  can  conference  from  a  room  but  why  can’t  I  join  from  my  laptop  or  cell  phone  or  iPad  at  my  desk,  or  at  home  or  from  anywhere  in  the  world?  

»  I  want  to  easily  share  content  from  whichever  device  I  am  using  

»  Etc…  

26/11/2013   Jisc  Co-­‐design   4  

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Video-­‐conferencing  

» Parts  to  this  presentation:  ›  The  changing  landscape  of  video-­‐conferencing  › Meeting  the  needs  of  South  African  Higher  Education  ›  TENET’s  plans  

5  

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Jisc  Project  conclusions  

»  There  are  considerable  benefits  accruing  from,  and  opportunities  for  more,  virtual  meetings  

»  Virtual  meetings  don’t  always  replace  travel  

›  new  uses  

›  stimulating  contact  

»  Considerable  CO2  benefits  for  all  

›  largest  element  in  research  intensive  universities  is  (long  haul)  air  

»  Air  travel  generally  dominates  CO2  equivalent  travel  

»  But  overall  business  benefits  are  mainly  related  to  short-­‐medium  distance  travel  air  travel  

»  Best  maybe  to  target  UNPRODUCTIVE  travel?  

6  

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State  of  play  of  conferencing    

09/10/14   TENET   7  

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“Legacy”  conferencing  

»  Otherwise  known  as  H.323  or  SIP  or  standards  based  

»  The  old  way  –  expensive  room  based  systems  and  heavy  duty  back  end  processing  

»  Betrays  its  telecommunications  roots  

»  Only  now  waking  up  to  the  growth  of  demand  for  mobile  and  desktop  conferencing  

»  Easy  to  use  (relatively)  »  Limited  functionality  beyond  video  and  audio  (e.g.  

content  sharing)  

»  Vendors  include  Polycom,  Lifesize,  Ayaya,  Cisco,  etc.  

»  Business  –  not  education  focused  

09/10/14   TENET   8  

Polycom  TPX  204M  

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Web  conferencing  

»  The  other  end  of  the  spectrum  

»  Content  is  king  –  so  presentation  is  centre  stage  »  Video  and  audio  not  usually  as  well  done.  Lack  of  

echo-­‐cancellation  can  cause  really  bad  problems  

»  Good  for  push  –  webinar  or  where  interaction  is  not  so  important  

»  Examples  include  Adobe  Connect,  Cisco  Webex,  Blackboard  Collaborate  and  Big  Blue  Button  (open  source)  

»  Doesn’t  really  move  off  the  desktop  to  enable  bigger  groups  to  interact  

09/10/14   TENET   9  

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Consumer  and  desktop  clients  

»  Skype  ›  Great  for  one  to  ones  and  presence  

›  Network  parasite  

›  Can’t  interoperate  with  anything  else  

»  FaceTime  

›  Apple  only  

»  Lync  ›  Part  of  the  MS  Office  stack  –  so  on  a  lot  of  desktops  

›  Replacing  traditional  telephony  –  soft  phones  

›  Can  interoperate  with  many  other  systems  

›  One  to  watch  

09/10/14   TENET   10  

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“Modern”  approaches  

»  These  use  variants  of  the  SVC  extension  to  theH.264  video  compression  standard  (Annex  G)  

»  Sends  a  base  layer  which  is  enough  –  and  then  enhancement  layers  as  the  circumstances  dictate  

»  Traffic  goes  through  a  media  router  –  but  the  decoding/encoding  is  done  intelligently  on  the  end  points  

»  Endpoints  get  the  resolution  and  detail  they  can  handle  

»  Advantages:  

›  Efficient  low  cost  infrastructure  –  backend  is  much  cheaper  than  traditional  MCUs  

›  Excellent  network  resilience    -­‐  copes  well  with  variable  bandwidth  situations  

›  Real  time  adaption  –  constant  tailoring  of  what  gets  sent  to  each  end  point  

›  Flexibility  

»  Gateways  to  H.323/SIP  world  are  available  

»  Lync  and  Outlook  integration    

09/10/14   TENET   11  

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Cloud  services  &  Integrators  

» But  we  may  still  have  islands  on  video-­‐conferencing  

» Enter  the  integrators  and  cloud  services  » But  most  of  these  mean  traffic  going  to  Europe  or  the  US  –  so  not  really  an  option  at  present  in  South  Africa  

» Promise  of  any  system  connecting  to  any  system  

09/10/14   TENET   12  

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Some  emerging  themes  

»  Software  endpoints  and  infrastructure  ›  Much  cheaper  ›  More  flexible  ›  User  provisioned  and  launched  

»  Cloud  based  offerings  –  pay  for  what  you  use  

»  Desktop  and  mobile  –  connect  from  anywhere  

»  Unified  communications  –  presence,  IM,  telephony  and  video  

»  The  right  tool  for  the  job  »  Video  in  browser  –  WebRCT  

09/10/14   TENET   13  

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So  what  to  use?  

»  What  do  you  want  to  do  ›  Teaching  and  learning  ›  Research  collaboration  and  coordination  ›  Outreach  

›  Administration  

»  What  does  you  have  in  your  university?  ›  Rooms  ›  Desktop  

»  What  can  you  get  access  to  via  the  cloud?  ›  Some  of  the  new  approaches  can  be  run  in  a  browser  –  Web  RCT  

09/10/14   TENET   14  

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UK  Developments  

» Old  offering  was  a  farm  of  MCUs  and  a  rather  clunky  booking  service,  along  with  a  dreadful  desktop  client  

» Some  advice  and  guidance  on  purchasing  and  use  

» Quality  assurance  of  endpoints  

» But  use  was  patchy  and  seemed  mostly  directed  at  schools  

» Some  heavy  use  in  colleges  with  multiple  sites  

» New  Platform  incorporating  Vidyo  for  desktop/personal  and  Cisco  MCUs  for  H.323/SIP  

09/10/14   TENET   15  

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VIDYO  

»  Best  of  breed  (IOHO)  

»  Scalable,  modular,  flexible,  configurable  

»  Mostly  virtualised  

»  Good  traction  in  research  communities  (CERN,  SKA)  

»  Desktop  and  web  client  

›  All  participants  can  share  content  

»  All  registered  user  get  a  virtual  meeting  room  

»  Room  systems  

»  Gateway  to  H.323/SIP  

»  Pay  as  you  use  pricing  model  

»  API  and  SDK  allows  for  custom  intgration  options  

09/10/14   TENET   16  

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Vidyo  at  CERN  

»  CERN  needed  to  scale  V-­‐C  capabilities  

»  Traditional  V-­‐C  was  way  too  expensive  

»  Settled  on  Vidyo  »  20,000  user  accounts  »  Routers  in  many  locations  (one  coming  on  line  

in  Cape  Town)  

»  Over  800  concurrent  connections  at  peak  

»  Cool  graphic  here:  http://avc-­‐dashboard.web.cern.ch/Vidyo  

»  CERN  asked  TENET  to  provide  hosting  for  Vidyo  Router  for  SA  use  

09/10/14   TENET   17  

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Vidyo  at  SKA  

»  Needed  to  expand  video-­‐conferencing  hugely    

»  Existing  and  emerging  H.323/SIP  technologies  were  difficult  to  use,  and  very  expensive  and  were  not  good  for  the  desktop/mobile  

»  Trialled  other  systems  (Zoom,  Blue  Jeans),  as  well  as  consumer  level  applications  (Skype,  Google  Hangouts)  but  came  down  for  Vidyo  

»  It  is  planned  that  South  African  end  of  SKA  will  use  Tenet  service  

09/10/14   TENET   19  

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Vidyo  Infrastructure  

»  Portal  (VM)  ›  Authentication  and  licensing  ›  Tenant  set  up  and  Admin  –  Capable  of  handling  multiple  tenants  (i.e.,  one  per  university  or  even  more  finely  grained)  

»  Router  (VM)  ›  Intelligent  packet  switching,  so  no  decode/compose/re-­‐encode  overhead  –  

tailors  video  feeds  to  match  each  end  point  abilities  ›  Up  to  100  concurrent  users  per  router  

»  Gateway  (Vidyo  hardware)  ›  Link  to  H.323/SIP  systems  

»  Replay  (Vidyo  hardware)  ›  Recording  and  streaming  server    

09/10/14   TENET   20  

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Vidyo  Infrastructure  Part  2  

09/10/14   TENET   21  

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Enhancement  Layer  

Base  Layer  

Significant  Impact  Single Layer (AVC)

Multi-layer (SVC)

Minor  or  No  Impact  

AVC  -­‐  Single  Layer  vs.  SVC  -­‐  Multi-­‐Layer  

Source  -­‐  Vidyo  

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Possible  model  of  provision  »  Pay  as  you  use  model  ›  X  Rand  per  named  user  who  uses  the  system  in  a  given  

month  –  Don’t  for  forget  that  users  can  invite  guests  who  do  not  count  

towards  that  number  of  users  –  Cost  per  user  decreases  as  number  of  users  grows  

»  TENET  will  provide  virtual  machines  to  run  most  of  the  infrastructure    and  buy  some  Vidyo  kit  (Gateways)  ›  Institutions  can  manage  their  Tenant  areas  –  connect  to  

LDAP  and  AD  

»  Support  within  office  hours  

»  Training,  familarisation,  evangelism  publicity  materials,  etc  

»  This  is  not  “Rip  &  Replace”  –  your  H.323  investments  can  co-­‐exist  and  will  reach  a  whole  lot  more  people  ›  Also  –  you  can  easily  bring  your  Lync  users  to  the  party  

09/10/14   TENET   23  

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Who  will  use  it?  

»  Admin  ›  Split  sites  ›  Cross  institutional  organisations  

»  Research  collaboration  ›  Project  management    

»  Teaching  and  learning  ›  Video-­‐conferencing  everywhere  ›  Record  sessions  or  stream  to  wider  internet  ›  Role  here  for  Web-­‐conferencing  –  But  probably  not  Adobe  Connect  as  cost  implications  are  worrying  if  usage  took  

off  Looking  with  SANReN  at  Mconf  (Supported  by  Brazilian  NREN)  

09/10/14   TENET   24  

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And  finally  –  some  words  of  advice  

»  Local  Network  Configuration  needs  to  be  stable,  and  in  particular  firewalls  need  to  be  correctly  configured.    

»  Room  systems  need  to  be  properly  configured  including  network  and  routing  settings.    

»  Meeting  rooms  need  to  have  good  acoustics  and  good  light    

»  Provide  good  quality  audio  play  back  in  rooms    

»  Laptop  /  PC  /  mobile  users  need  to  have  reasonable  spec  hardware  &  preferably  headset  and  microphone  (although  Vidyo  has  built  in  echo  cancellation)  

»  Laptop  /  PC  /  mobile  users  can  connect  using  only  a  web  browser,  but  get  more  functionality  if  they  install  the  Vidyo  client  before  connecting.    

»  Test  the  setup  before  a  meeting  starts,  not  when  the  meeting  is  supposed  to  start  

»  However  good  the  hardware  is,  bandwidth  across  the  internet  will  always  be  a  limiting  factor,  however  latency  is  even  more  critical.    

»  User  familarisation  and  expectations  are  key  –  make  sure  people  understand  how  to  use  the  system  and  kit  

23/10/14   TENET   25  

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Video-­‐conferencing  workshop  

» Johannesburg  4th  &  5th  November  

» Looking  for  up  to  two  people  from  each  institution  ›  IT  Manager  with  responsibility  for  video-­‐conferencing  ›  And/or  person  with  day  to  day  engagment  

» Opportunity  for  debate  and  discussion  and  sharing  problems  and  good  practice  

» Email  g  

23/10/14   TENET   26  

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Thank you

Rob Bristow [email protected]

@robbristow