Cisco Headend System Release 2.7 Technical References

  

 

Organizational Unique Identifiers (OUIs) refer to the first three octets of a MAC 
address. Within each range of MAC addresses, there are several million unique 
addresses. When all the addresses within a range have been issued, a new range 
with different OUIs must be used. Cisco will soon begin manufacturing PowerKey® 
CableCard™ modules that contain a new OUI 00:1A:C3. For sites operating at 
System Release (SR) 2.7/3.7/4.2 or SR 2.7/3.7/4.2 SP 0.1 to begin deploying the new 
PowerKEY CableCARD modules, the service provider will need to request that 
Cisco add the new OUIs to their DNCS database. 

Important! This operations alert bulletin only applies to sites operating at 
SR 2.7/3.7/4.2 and SR 2.7/3.7/4.2 SP0.1. Later releases of SR 2.7/3.7/4.2 will 
automatically update the DNCS database with new OUIs. 

If you are operating at SR 2.2/3.2 Service Pack (SP) 5 or SR 2.5/3.5/4.0 SP 2 refer to 
OUI Patches for SR 2.2/3.2 Service Pack 5 and SR 2.5/3.5/4.0 Service Pack 2. 

 
 

For sites operating at SR 2.7/3.7/4.2 or SR 2.7/3.7/4.2 SP 0.1, contact Cisco Services 
to schedule adding the new OUIs to the DNCS database.