search cancel

CA XCOM transfers are not using the full bandwith


Article ID: 6376


Updated On:


XCOM Data Transport XCOM Data Transport - Windows XCOM Data Transport - Linux PC XCOM Data Transport - z/OS


XCOM is not consuming the full Bandwidth that is assigned to the server. Transfers are taking longer to complete.


XCOM r11.6 for Windows, Windows 2008


Windows 2008 R2 blocks the bandwidth and you can't use the full amount of it. This did not happen with Windows 2003 and that problem did not occur.


XCOM does not control the bandwidth being used. That is done by TCPIP and/or your network. That applies for any of the platforms where CA XCOM is running. Review the settings for TCPIP or your network. 

Additional Information

We can provide you with CA XCOM settings to improve your transfer performance, but that will not control the bandwidth used for that transfer. Here are some of the suggestions to improve your transfer performance:

1. If you are initiating the transfers from Windows and the files are large, make sure that you are using Packing. In other words, make sure you have ENCODING or CARRIAGE_FLAG=XPACK. Small files will not take advantage of the packing since there is not a lot of data to transfer. 

2. If using packing, you don't want to use Compression because that puts more overhead on the transfer. 

3. Make sure that tracing is turned off. 

4. Make sure you have the following values for these parameters in your xcom.glb: 







5. Check your to make sure you are taking advantage of concurrent active transfers. 

If your settings are already set to the above values, then you need to address the problem with your Network Administrator.