Protecting media streams
This presentation is the property of its rightful owner.
Sponsored Links
1 / 17

Protecting media streams PowerPoint PPT Presentation


  • 141 Views
  • Uploaded on
  • Presentation posted in: General

Protecting media streams. Addressing the main concern of our customers - reliability of IP networks. Traditional redundancy schemes: Baseband layer : No redundancy or simple redundancy (DAs and CHOs at the edge) SDH (DTM): 50ms recovery

Download Presentation

Protecting media streams

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Protecting media streams

Protecting media streams

Nevion Confidential


Addressing the main concern of our customers reliability of ip networks

Addressing the main concern of our customers- reliability of IP networks

  • Traditional redundancy schemes:

  • Baseband layer: No redundancy or simple redundancy (DAs and CHOs at the edge)

  • SDH (DTM): 50ms recovery

  • IP networks: might have built-in protection of circuits, but ...

    • Redundant paths are activated on network failures and not on video stream failures

    • Protection switching is done by the core routers, and will typically take several seconds

All traditional alternatives will create service outage and affect equipment in the downstream path


Media transport protection options

Media transport protection options

  • FEC according to SMPTE 2022-1 and 2022-5

  • Protection switching via SIPS

  • SIPS enhancement – LDO

    • Launch Delay Offset

    • Protection for simultaneous loss on both Network streams

  • SIPS Enhancement – EPP

    • Encoder Partner Protection

    • Protection for hardware failures in 1+1 configuration


Nevion s sips technology next generation solution for redundancy

Nevion’s SIPS technology:Next generation solution for redundancy

  • Streaming Intelligent Protection Switching (SIPS)

  • Fundamental building block for next generation managed video services

  • Slipless switching at IP layer

  • Does not affect services - no outages, no affection of downstream path

  • Works with multiple IP path configurations - dual and single

  • 1+1 edge equipment redundancy can be added to further increase availability

  • Common feature in the VS902/VS906 suite

  • SIPS provides unparalleled service level to the Broadcaster

  • – even better than traditional video networks


Video layer service protection what issue are we trying to solve

Video-layer service protection- what issue are we trying to solve?

  • IP networks might have built-in protection of circuits, but ...

  • Redundant paths are activated on network failures and not on video stream failures


Nevion s sips technology next generation solution for redundancy1

Nevion’s SIPS technologyNext generation solution for redundancy


Video layer service protection dual network interfaces

Video-layer service protection- Dual network interfaces

SIPSTM

Video in(ASI, SDI)

Video out(ASI, SDI)

  • Protectionswitching done by Decoder

  • Sliplessswitching is provided by NevionsStreaming Intelligent ProtectionSwitching (SIPSTM)

  • Reduncancyprovided in case of:

    • Link failure in the core

    • Equipmentfailure in the core

    • Redundancyprovided by corerouters and switches

    • Link failurebetweenEncoder/Decoder and IP edgerouter

  • Noredundancyprovided in case of:

    • Encoder/Decoderequipmentfailure

    • Video source missing

    • Errors in video source signal


Ventura vs902 architecture sips and input protection switching

Ventura VS902 architectureSIPS and Input Protection Switching


Seamless switching

Seamless Switching

  • Media is replicated and encapsulated over dual networks

  • Network routed over diverse path

  • Receivers buffers and time aligns packets from diverse network

  • Receiver selects best packet to provide error/glitch free switching

Optimum

Stream

Look ahead switch

Buffer

Buffer

Stream Analysis


Sips pros and cons

SIPS – Pros and Cons

  • Can be used for any media

  • Protects for the most common Link failures

  • Switch event is seamless (not detectable or measurable)

  • Protection capability is up and running with <1 second of link restoration and in the millisecond range on restoration of packet flows

  • If diverse path is not guaranteed, Simultaneous loss of both feeds results in unrecoverable event.

  • Double bandwidth utilization

  • No protection for hardware failures


Sips ldo solution to lack of diverse path

SIPS-LDO – Solution to lack of diverse path

  • Recent broadcast audio application in Europe

    • Contribution Audio (National Radio Network) over IP

    • Ethernet over SDH infrastructure

      • No control over infrastructure

    • Worried over the 50ms APS gap

      • FEC cannot bridge APS gaps

  • Leveraged SIPS with Launch Delay Offset


Launch delay offset

Launch Delay Offset

  • Encoder launches primary stream immediately.

  • Launches secondary stream delayed by 60ms to cover 50ms APS

  • In an APS event, the secondary stream arrives outside of the 50ms switchover

  • SIPS selects the best packet for perfect switch


Sips epp solution for hardware protection

SIPS-EPP – Solution for Hardware Protection

  • For a 1+1 hardware protection with perfect switching

  • Inter-connect two SIPS capable encoders at transmitter


Encoder partner protection

Encoder Partner Protection

  • For a 1+1 hardware protection with perfect switching

  • Inter-connect two SIPS capable encoders at transmitter

  • Video transmitted on Master-Primary and Slave-Secondary

  • Receivers are independent and operate on SIPS from Master/Slave flows


Encoder partner protection1

Encoder Partner Protection

  • The types of faults that will result in a perfect switch are:

    • Failure to input on the Slave,

    • Failure of the Slave,

    • Failure of any link or network node.

  • The types of faults that will result in a non-perfect switch are:

    • Failure to input on the Master,

    • Failure of the Master.

  • Failure of cross strap, the Slave will automatically output from its internal engine.

    • The receiver will detect non-coherence in the primary and secondary feeds but maintains lock on the primary stream.


Encoder partner protect epp

Encoder partner protect (EPP)

  • Site hardware redundancy

  • Encoders in different chassis/racks/building

  • Duplicate launch

  • Flows coherent at RTP layer received by Decoders (required by SIPS)

  • Cards cross connected

  • Slave normally sends copy of master channels feed

  • Active and Passive modes


  • Login