can i get exmaple usage of txtsnd command ?

Hello, in tut 5, we have to use txtsnd command to send data from one interface to another, but i ma getting synatx error and cant make it work. Lets say [2A:29:4A:9A:D5:F8], [L2-PDU:1500]  is the addres to send the data. Alos a example to broadcast data will also be helpful.
