

This will make sure that only the packets that carry the BGP messages will be displayed.

If, on the other hand, you want to see only the BGP communication then you may want to write In the Filter line (yes, together with the exclamation mark that means "not"). Specifically, if you do not want to see the STP packets but want to see everything else, write Much easier is using the second stage - i.e., after you capture all traffic and possibly stop the capture, you write your filter expression in the "Filter" line in the upper part of the Wireshark window and click on "Apply". which packets that have been captured will be displayed to you). which packets will be captured), the second stage is when the captured packets are displayed (i.e.

The first stage is when the packets are captured (i.e. You can do filtering in two stages in Wireshark.
