Upgrade Procedure User Manual

Page 6Biamp Systems | AVB Resource Guide
Step 3:
Talker endpoint sends stream and listener endpoint receives it.
Sending Stream!
Receiving Stream!
Endpoint
Endpoint
Endpoint Endpoint
Endpoint
Ready!
Ready!
Ready!
The AVB bridge/switch guarantees time-sensitive, loss-sensitive, real-time AV
data transmission while allowing audio and video data to seamlessly share the
same network. The switches will only allow up to 75% of each network port to
be used for AVB trac, preventing other forms of data from being delayed or
lost.
Key Features of AVB
• Transports media data faster and simultaneously by referencing a
network master clock.
• AVB devices periodically exchange timing information that allows both
ends of the link to synchronize their time base reference clock very
precisely across an AVB-aware LAN. This precise synchronization has
two purposes:
1. To allow accurate synchronization of multiple streams.
2. To provide a common time base for sampling/receiving data streams
at a source device, and presenting those streams at the destination
device with the same relative timing.
• Guarantees bounded, low and constant media latency. Low latency is
important in live situations where the receipt of audio needs to arrive
within milliseconds of the original transmission. Bounded/constant
latency prevents the timing from changing by guaranteeing a specific,
known latency between endpoints. The latency of AVB provides 2ms over
7 switch hops in a 100Mbit Ethernet network. With one gigabit hops, 1ms
latency becomes possible.
1 gigabit hop
AVB
Switch
AVB
Switch
1 gigabit hop 1 gigabit hop
1ms latency OK!