SolStd21 - CHAPTER 21 Network Layer: Address Mapping, Error...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 CHAPTER 21 Network Layer: Address Mapping, Error Reporting, and Multiplexing Solutions to Odd-Numbered Review Questions and Exercises Review Questions 1. The size of an ARP packet is variable , depending on the length of the logical and physical addresses used. 3. The size of the ARP packet in Question 2 is 28 bytes. We need to pad the data to have the minimum size of 46 . The size of the packet in the Ethernet frame is then calculated as 6 + 6 + 2 + 46 + 4 = 64 bytes (without preamble and SFD). 5. This restriction prevents ICMP packets from flooding the network. Without this restriction an endless flow of ICMP packets could be created. 7. A host would never receive a redirection message if there is only one router that connects the local network to the outside world. 9. The minimum size of an IP packet that carries an ICMP packet would be 28 bytes (a 20 byte IP header + an 8 byte router solicitation packet). The maximum size would be 2068 bytes (a 20 byte IP header + a 2048 byte router advertisement
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

SolStd21 - CHAPTER 21 Network Layer: Address Mapping, Error...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online