What is contained in the trailer of a data-link frame?

Answer 1

The trailer protocol is a link-layer encapsulation method that rearranges the data contents of packets sent on the physical network.

by : Umesh

The trailer indicates where a frame ends. It, along with the header, encapsulates a packet, making it a frame.

by: eSeriate

Answer 2

At the receiving and this layer package row data from the physical layer into data program delivery to the network layer

at the sending and this layer handles conversion of data into row formats that can be handled by the physical layer