IntecGroup

Mainlink DVB Failover

Mainlink DVB Failover

Broadcast service continuity, without compromise

In broadcast transport, even a single stream or DVB table error can degrade quality or cause interruptions. Reducing the MTTR (Mean Time To Repair) and switching before the end user notices is critical. MAINLINK DVB FAILOVER is designed to prevent service disruptions, automate switching, and provide technical visibility in real time.

  • Dual Multicast input (MAIN/SPARE), dedicated Multicast output.
  • Failover based on configurable criteria:
    • packet presence/absence only;
    • absence of DVB errors (PSI/CRC/discontinuities);
    • presence of specific DVB tables on MAIN (selectable: PAT, SDT, NIT, EIT_PF, EIT_SCHED, TDT/TOT, CAT).
  • Web GUI for configuration and control, with input/output NIC selection via dropdown menus.
  • Event logging to rotating file, viewable from the GUI.
  • Reliable switching: the output stays active even if only one of the two inputs is up.
  • Smart DVB verification
    • Presence mode: extremely fast,
    • Presence + Tables mode: combines packet presence with PSI/SI integrity;
    • Tables only mode: for environments requiring strict EMC/PSI compliance.
  • Select DVB tables to monitor on MAIN: choose essential PSI/SI tables from the GUI (PAT/SDT/NIT/EIT/TDT-TOT/CAT).
  • Configurable timing:
    • Down time (ms): how many ms of absence/error before switching;
    • Return time (ms): MAIN must remain healthy for this window before switching back;
    • Multicast TTL on output.
  • Interface selector: choose input NIC and output NIC from detected interfaces (IPv4).
  • Log & audit:
    • text file (with automatic rotation);

 

Advantages

  • Zero-touch failover: fast and predictable switching, configured to your SLAs.
  • Observability: logs and GUI provide clear visibility into health, errors, and tables.
  • Flexibility: you choose whether to prioritize packet presence or PSI/SI quality.
  • Simple integration: pure multicast, no vendor lock-in; easily connects with existing encoders, muxes, and IRDs.
 
 

Typical use cases

  • Dual transport (fiber + IP/MPLS) with geographically redundant SPARE.
  • Encoder/multiplexer redundancy with “hard” DVB check (PAT/SDT/NIT/EIT).
  • Single-point output bridge to headend or aggregated multicast CDN.
 
 

Monitorable KPIs

  • Average and max switch time (ms) in real-world conditions.
  • Detected PSI/CRC error rate (improvement post-switch).
  • Output availability (≥ 99.99% over long periods).
  • Mean Time To Detect MAIN failure.
 
 

Options

  • PMT/services selector with elementary component check.
  • JSON/Prometheus export of metrics.
  • Notifications (email/Slack) on switch events or recurring DVB errors.
 
 

MAINLINK DVB FAILOVER combines operational reliability and DVB monitoring in a single lightweight, production-ready solution. Whether you’re managing a headend, teleport, or regional network, you have the tools to avoid blackouts and prove transport quality.