Cisco Headend System Release 2.5
![Cisco](https://files.manualsbrain.com/attachments/7380d0050044647c30f5c24bbbf5d0c0b6d9bb84/common/fit/150/50/faa183d287233c52228cfea3dbc2a127fe780f60564fcb0955d9c3d1cd23/brand_logo.png)
Chapter 2 Optimize Your System Performance for Downloads and Staging
68
736107 Rev D
Adding the OOB CVT Environment Variable to the .profile File
The first step in the process is to add the OSM_RF_CVT_PASSTHRU_SECONDS
The first step in the process is to add the OSM_RF_CVT_PASSTHRU_SECONDS
variable to your .profile file on the DNCS.
Before you begin, you need the optimum OOB CVT message cycle time that you
calculated in Calculating the Optimum OOB CVT Message Cycle Time (on page 66).
1 Open an xterm window on the DNCS.
2 Type cd /export/home/dncs and press Enter. The /export/home/dncs directory
2 Type cd /export/home/dncs and press Enter. The /export/home/dncs directory
becomes the working directory.
3 Open the .profile file in a text editor.
4 Add the following line to the end of the .profile file:
4 Add the following line to the end of the .profile file:
export OSM_RF_CVT_PASSTHRU_SECONDS=[calculated OOB CVT
message cycle time in seconds]
Note: Do not include the brackets [ ] in the variable.
Example: If your calculated OOB CVT message cycle time is 205 seconds, you
Note: Do not include the brackets [ ] in the variable.
Example: If your calculated OOB CVT message cycle time is 205 seconds, you
would type the following:
export OSM_RF_CVT_PASSTHRU_SECONDS=205
export OSM_RF_CVT_PASSTHRU_SECONDS=205
5 Save the file and close the vi text editor.
6 Log out of the DNCS.
7 Log back into the DNCS.
8 In an xterm window, type . ./.profile to source the environment variable. Be sure
6 Log out of the DNCS.
7 Log back into the DNCS.
8 In an xterm window, type . ./.profile to source the environment variable. Be sure
to type a space between the first two periods.
9 Type env | grep OSM and press Enter. The system displays the environmental
variables associated with the OSM process.
10 Is the OSM_RF_CVT_PASSTHRU_SECONDS included in the list and is the
setting correct?
If yes, you are finished with this procedure. Go to Bouncing the OSM Process
(on page 69).
If no, repeat this process from step 3.