Customizing NBAR Protocols
NBAR protocol settings can be customized in the Manage Application Recognition (NBAR) editor.
Select Manage Application Recognition (NBAR) from the QoS interface right-click context menu.
![](/static/afc8e008f3ff17de3955ffcbfa92853a/6aa1e/discovered-traffic.png)
Existing protocols can be customized by adding, removing or changing TCP and UDP port numbers. Unknown protocols can be identified and assigned a new name.
![](/static/a6149d231b9b3d50c9a8d840a072a023/6aa1e/TCP-and-UDP.png)