Wireshark-users: [Wireshark-users] What does “Raw packet data” field mean in Wireshark?

From: 江杰 <jie.jiang@xxxxxxxxxx>
Date: Sun, 18 Sep 2016 11:06:51 +0800

As you can see in first figure, what does that Raw packet data mean? What is the difference between normal tcp packet in figure 2?

FYI, I'm using Wireshark 2.2.0.