Building Helix Server Cluster using LVS

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Introduction

RealNetworks' streaming service uses the following protocols:

  • PNM (TCP on port 7070, UDP from server -> player on ports 6970-7170)
  • RTSP (TCP on port 554, similar UDP as above, but often on multiple ports)
  • PNM was our original, but now mostly legacy, protocol used in our versions 1 through 5.
  • There's also a HTTP/TCP-only fallback mode which is (usually) on port 8080.

Architecture

Configuration Example

=== vsnat mode VIP/EXTIP 192.168.9.244 RS1 192.168.0.150 RS2 192.168.0.160

Run the follwing script on LB Server: ipvsadm -A -t 192.168.9.244:554 -s rr ipvsadm -a -t 192.168.9.244:554 -r 192.168.0.150 -m ipvsadm -a -t 192.168.9.244:554 -r 192.168.0.160 -m

Run 

realplay rtsp://192.168.9.244/test.rm

Conclusion

References


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