The uncompressed header carries 28 bytes of UDP/IP header information. This information is compressed into five bytes when the compressed header replaces the static parameters. Thus, this compression ...

The IP/UDP/RTP headers that encapsulate voice media packets total 40 bytes, and this overhead is significant when you consider that the voice media payload may, for example, be 20 bytes (G.729).

The layer-four protocols, TCP and UDP, have different ways for dealing with errors in packets. At the destination, TCP does a calculation that is based on the TCP header, the payload data, and ...

It is interesting that the IP checksum validates only the integrity of the header, but not any of the data. This task is another layer’s responsibility. If the checksum is valid, the router will route ...

This comprises Ethernet header information (14 bytes), IP headers (20 bytes) and TCP headers (20 bytes). This leaves 1460 bytes for data. The second part of this post looks at using a couple of ...