Cisco Headend System Release 2.7 Release Notes

 

14 

4012157 Rev B 

The current method for staging new DHCTs involves sending all EMMS for each 
given DHCT to every out-of-band (OOB) bridge, and, ultimately, to every DHCT 
resident in a given DBDS. This method is known as "broadcast" or "one-way" staging 
and requires system operators to disable the "reverse" communication path. Another 
aspect of this staging technique lies in the fact that even though a given set of EMM 
authorizations apply only to a specific single DHCT, the data is propagated 
throughout the cable system. This is a very inefficient model that wastes both DNCS 
and network resources.  

The primary purpose of the Staging Bridges feature is to address this network 
inefficiency and to provide an alternative staging paradigm that results in an 
improved use of DNCS and network resources while also streamlining the staging 
process. With the Staging Bridges feature, system operators identify a subset of the 
OOB bridge population within a DBDS to use for the staging function. Once this 
subset is identified, system operators can use the DNCS GUI subsystem to isolate 
and route staging communications traffic (for example, EMMs) only to this specified 
subset of OOB bridges. When configured and administered properly, the Staging 
Bridges feature can greatly reduce unnecessary network message traffic while 
reducing DNCS platform processing usage.