video services
DESCRIPTION
TRANSCRIPT
VIDEO SERVICES
• H.323 Video with QOS• Video Portal Services• Satellite and Microwave
Gateways• MPEG2 for Broadcast Quality
Applications
H.323 Video
• Cisco MCM Gatekeepers– Hierarchical Zone Structure– Admissions Control
• FVC Click To Meet– Gatekeeper Initiated Calling– Browser Interface– Scheduling– User Groups
• MCUs- 150 Ports (up to 400)
• Gateways
• Streaming Servers
Portal Services
• Polycom Accord MCU – 96 Ports at 384Kbps, 48 at 768Kbps– Continuous Presence with up to 9 windows
• FVC Conference Server– 150 Ports at up to 2Mbps each– Extranet and Internet conferences– Downloadable PC Clients
MCU Services
• ISDN Gateway– 3 PRIs ( 69 “B” Channels )– 11 simultaneous 384Kbps (6 channel)
callers
• Access New Jersey Gateway– H.323 – H.321
• Internet Gateway
Gateway Services
Streaming Services
• Encoders, Servers– Windows Media Services– 1 Extranet, 1 Internet– MCU Conference Streaming
• Applications– Internet Conferences– Off-Net Students
• Satellite Gateway– 7 Meter Earthstation (Uplink)– Domestic and International Birds– Analog and Digital Services– TVRO (Downlink) Services
• Terrestrial Microwave– NJN– NY Broadcasters
Broadcast Gateways
Broadcast Support
• Sat/Mwave Gateway @ WPU– MPEG2 Broadcast Quality Codec– Tx/Rx over IP @ 800Kbps-15Mbps
• NJEdge.Net Member– MPEG2/IP Codec shipped upon request– Easy install in ITV room or studio
IDLS Codec Choices
• Broadband Subscribers– H.323: Polycom VS4000– MPEG2: Miranda MAC500IP
• Narrowband Subscribers– H.323: Polycom VS4000– MPEG2: Miranda MAC100IP
ProvisioningProvisioning
Video Data Rate + 20% = Bandwidth RequiredVideo Data Rate + 20% = Bandwidth Required
128kbps = 153kbps128kbps = 153kbps
384kbps = 460kbps384kbps = 460kbps
512kbps = 614kbps512kbps = 614kbps
768kbps = 921kbps768kbps = 921kbps
1.5Mbps = 1.8Mbps1.5Mbps = 1.8Mbps
Video VideoControl
< 33% of Link Capacity< 33% of Link Capacity
Data
< 75% of Link Capacity< 75% of Link Capacity
Routingetc.
Link CapacityLink Capacity
Video Data RateBW Required
Beware – Video conferencing endpoints request 2 x the actual conference rate, so 384k conference yields request for 768kbps, and actually consumes 460kbps
Link Capacity = ( Min BW for Video + Min BW for Data) / 0.75