Wireshark provides a very wide range of protocol-specific display filters that can be extremely useful for analysis activities by allowing you to focus on specific packets, based on criteria that you define. You can filter on just the traffic that you want to see or filter undesired traffic out of view. Display filters are one of the most helpful features of Wireshark, so they warrant becoming very familiar with.
Display filters can be created in several ways:
By applying display filters from the Display Filter window
By typing in the display filter syntax (using autocomplete)
By applying display filters from the Conversations (or Endpoints) window
By applying saved display filters from Filter Expression Buttons
Using the Expressions button for assistance creating filters
Using right-click menus on specific packet fields