Administration › Monitoring with a NI GigaStor › Block a NI GigaStor Input Port

Block a NI GigaStor Input Port

If you notice there are twice the number of expected observations and doubly-long NRTT, you might need to exclude all packets from selected Monitor ports on the NI GigaStor device. The port-blocking feature is an effective way to monitor in multi-tier environments. If you have configured the NI GigaStor so that different ports report the same server traffic from different vantage points, for example, from an access switch and a distribution switch, you can exclude data from the distribution switch so that those packets are not seen as duplicates of packets collected from the access switch.

Follow these steps:

1. Log in to the NI GigaStor.
2. Change directories to C:\NetQoS\GigaStorReader and then create a file named BlockedGigaStorPorts.ini.
3. Open BlockedGigaStorPorts.ini and add an entry using the following format:

   /exclude port=port
   

   Where port is a port value that ranges from zero to 7, which maps to the 1 to 8 range in the NI GigaStor interface. To specify more than one input port on the NI GigaStor, separate each entry with a comma.