Packet Switching - Crossword

Clues

1. Method of sending data in blocks that travel separately to the destination (15)
2. A fixed-size block of data with a header and footer sent across a network (6)
3. Section at the start of a packet holding source and destination IP addresses (6)
4. Device that reads a packet's destination IP address and forwards it towards the next device (6)
5. Unique identifier assigned to a device so data can be sent to it (9)
6. Value in a packet header showing the order packets are put back together in (14)
7. Any device or connection point on a network (4)
8. Section at the end of a packet used for error checking (6)
9. Path taken by a packet, which may differ from other packets in the same message (5)