Cisco Headend System Release 2.7 Technical References

  

 

Operations Alert Bulletin 
VOD and Session Setup Request Issues 
 

Cisco is aware of several recent instances in which system operators, who use the 

GQAM modulator for video-on-demand (VOD), have experienced session setup-

request failures. These failures occur, in SR 4.0 and later systems, when VOD 

vendors do not use the Ethernet Interface Descriptor in the resource request 

transaction. Instead, the VOD vendors have been using the transport stream ID 

(TSID) or ASI signalling in the request for Gigabit Ethernet (GbE) resources. 
Beginning with SR 4.0, VOD vendors who use the TSID or ASI signalling in the 

resource request, when an Ethernet interface exists between the VOD server and the 

GQAM modulator, will find that the DNCS cannot properly process the resource 

request transaction.