Cisco Headend System Release 2.7 Guida Utente
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4011413 Rev B
Create Group Definition Rules Manually in SR 2.5/3.5/4.0 and Earlier
Create Group Definition Rules Manually in SR 2.5/3.5/4.0
and Earlier
and Earlier
SR 2.7/3.7/4.2 provides a WUI to help you set up enhanced channel maps.
However, if the set-top box contains the prerequisite client software, you can
manually create group definition rules using a system release earlier than
SR 2.7/3.7/4.2. The procedures in this section ensure that the group_defs.txt file is
not removed from the bfs:///osm directory after restarting DNCS processes.
However, if the set-top box contains the prerequisite client software, you can
manually create group definition rules using a system release earlier than
SR 2.7/3.7/4.2. The procedures in this section ensure that the group_defs.txt file is
not removed from the bfs:///osm directory after restarting DNCS processes.
Important: If you create a group definition rules file according to the manual
procedure that follows, you should undo this procedure when you upgrade to
SR 2.7/3.7/4.2 or later. If the manually-created file already exists when the
enhanced channel map WUI is installed, there may be a conflict with the files or the
links on the BFS osm cabinet.
procedure that follows, you should undo this procedure when you upgrade to
SR 2.7/3.7/4.2 or later. If the manually-created file already exists when the
enhanced channel map WUI is installed, there may be a conflict with the files or the
links on the BFS osm cabinet.
Creating Group Definition Rules Manually
To create a group definition rules file manually, complete the following steps.
1 Create a virtual hub (not tied to a physical hub). A virtual hub is a hub that is not
1 Create a virtual hub (not tied to a physical hub). A virtual hub is a hub that is not
assigned to a QPSK modulator. By doing so, you can create a Display Channel
Table (DCT) that is not automatically visible to any group of DHCTs.
Table (DCT) that is not automatically visible to any group of DHCTs.
2 Create a virtual-hub-based channel map as described in Creating Map Usage
Rules (on page 7). In that procedure, be sure to add the newly created virtual hub
as a selected hub. This step assigns the channel map to the virtual hub.
as a selected hub. This step assigns the channel map to the virtual hub.
3 On the DNCS, create a file called group_defs.txt in the bfs:///osm directory.
This file is called a Group Definition File (GDF). You will use this file to assign a
virtual hub ID for each DHCT that you want to use an alternate Display Channel
Table (DCT). For more information about the group definition file format, see
Group Definition File Format (on page 13).
virtual hub ID for each DHCT that you want to use an alternate Display Channel
Table (DCT). For more information about the group definition file format, see
Group Definition File Format (on page 13).
4 Your next step is to post the file to the BFS. Go to Posting a New Group
Definition Rules File (on page 12).
Posting a New Group Definition Rules File
To post a new group definition rules file to the BFS, complete the following steps.