For OfficeScan, WFBS  and Stand-Alone Smart Scan Server 2.0, a built-in throttling function resolves this network capacity issue. This function is automatically enabled if the product detects that the BF.ptn size increased.

For OfficeScan 10.0, WFBS 6.0, and Stand-Alone Smart Scan Server 1.0, apply patches with bandwidth throttling feature limiting the number of OfficeScan/WFBS clients that are able to download 7 MB file at a given time. By default, the patches allow five (5) clients to download the 7 MB file. Afterwards, the patches let the clients wait for 15 seconds before allowing the next batch of clients to download the 7 MB file.

Below are the patches and Readme files.

• OfficeScan 10 SP1 with Integrated Scan Server 1.0 Build 1260
  Readme file
• OfficeScan 10 with Integrated Smart Scan Server
  Readme file
• Stand-Alone Smart Scan Server
  Readme file
• Stand-Alone Smart Scan Server 1.1
  Readme(Stand-Alone Smart Scan Server 1.1 Service Pack 1 Build 1155)
   

  This requires Standalone Smart Scan Server SP1 before installing the hot fix.
• WFBS 6.0 (regardless of SP level)
  Readme

To change the Smart Query Filter Bandwidth Throttling default settings:

1. Open the ptngrowth.ini file.
   • For OfficeScan server, this is located in the ...OfficeScan>\PCCSRV\WSS\ folder.
   • For Smart Scan Stand-Alone server, this is in /var/tmcss/conf/.
2. Locate the entries below:

   [COOLDOWN]
   BASE_VERSION=0
   MAX_UPDATE_CONNECTION=5
   UPDATE_WAIT_SECOND=15
   COOL_DOWN_ELAPSE_DAY=7
   COOL_DOWN=0
   COOL_DOWN_TIMESTAMP=0

   where:

   • MAX_UPDATE_CONNECTION is the maximum number of connections allowed to download FULL BF.ptn
   • UPDATE_WAIT_SECOND is the number of seconds to wait before the next MAX_UPDATE_CONNECTION becomes available
   • COOL_DOWN_ELAPSE_DAY is the number of days that the "Cool Down" period will remain active
   • COOL_DOWN determines Cool Down state (active/inactive)
   • COOL_DOWN_TIMESTAMP is the timestamp when changing size issue occurs
    

   Using this default setting takes around 50 minutes for 1,000 clients to be updated in a 100 MBps environment.
3. Change the values of the following entries based on your preferred number of clients and network utilization:

   MAX_UPDATE_CONNECTION=
   UPDATE_WAIT_SECOND=
   COOL_DOWN_ELAPSE_DAY=

4. Restart the Smart Scan Server service.