Cisco Headend System Release 2.7 User Guide
2
4025032 Rev C
About Enhanced Channel Maps
About Enhanced Channel Maps
If the set-top contains the prerequisite client software listed in Prerequisites for
Enhanced Channel Maps (on page 6), you can use enhanced channel maps to assign
channel maps based on a number of criteria:
Enhanced Channel Maps (on page 6), you can use enhanced channel maps to assign
channel maps based on a number of criteria:
PowerKEY
®
package authorization or Entitlement ID (EID)
DHCT hardware model
DHCT hardware version
Physical hub assignment, virtual hub assignment, or bouquet assignment
MAC address
Group Definition Rules
When you set up enhanced channel maps for your facility, you must build a set of
group definition rules. You can use a DNCS Web User Interface (WUI) to build these
rules. Use the Group Definitions button located on the Application Interface
Modules tab of the DNCS Administrative Console to build these rules.
group definition rules. You can use a DNCS Web User Interface (WUI) to build these
rules. Use the Group Definitions button located on the Application Interface
Modules tab of the DNCS Administrative Console to build these rules.
Before You Begin
Before you begin, make certain that you understand what occurs when you build a
set of group definition rules. When you create these rules using the WUI, the
following events occur:
1 The DNCS stores these rules in a file and posts the group definition rules file on
set of group definition rules. When you create these rules using the WUI, the
following events occur:
1 The DNCS stores these rules in a file and posts the group definition rules file on
the Broadcast File Server (BFS) by way of the OSM Server (or cabinet) for the
DHCT to read.
DHCT to read.
2 When the DHCT boots up, it looks for this file on the BFS and reads the file if it
exists. During normal operation, the DHCT also monitors this file for
modifications, so that the DHCT does not need to reboot in order to receive any
changes.
modifications, so that the DHCT does not need to reboot in order to receive any
changes.
3 If the DHCT finds a rule that matches the DHCT's configuration, it then uses the
first rule in the list of Group Definition rules that matches to apply the channel
map associated with that rule. If the DHCT does not find a rule that matches its
configuration, it uses the channel map for the hub where it resides.
map associated with that rule. If the DHCT does not find a rule that matches its
configuration, it uses the channel map for the hub where it resides.