Subtle point, Computer Networking

Assignment Help:

It is possible for a datagram to generate ICMP errors after it has been fragmented. For example, suppose that each of two fragments cannot be delivered. Seemingly, this would mean that one transmitted datagram would cause two ICMP errors to be sent back to the transmitter. However,the textbook on page 517 indicates that the ICMP error should be sent for only the ?rst fragment that causes the error. This is a convenient simpli?cation: it means that your transmiting APP need never listen for more than one ICMP error response.

RFC 791 de?nes IP and RFC 792 de?nes ICMP. Both date to September 1981. ICMP, although typically mentioned as a separate protocol-and sometimes not mentioned at all-is a required part of IP; i.e., an implementation of IP is non- conforming unless it includes ICMP. RFC 1122 (October 1989) updates and clari?es the earlier standards, based on experience gained in the 80s. RFC 1122 is quite long and detailed. Since RFC 1122, the only revisions to IPv4 have addressed type-of-service.

 


Related Discussions:- Subtle point

Explain different architectures for ieee802.11, Question: (a) Explain a...

Question: (a) Explain and illustrate different architectures for IEEE802.11 (WiFi). (b) The MAC management of IEEE802.11 handles transmitter activity for power management.

Advantage of ip sec tunnelling mode, Advantage of IP sec  Tunnelling Mode ...

Advantage of IP sec  Tunnelling Mode IP Sec  tunnelling mode  has the  following  advantages: a.Security : Ts IP sec tunnelling mode  secure somewhat but  not the best. In a

Explain matric, Matric define as Formula of path selection

Matric define as Formula of path selection

Explain anti-aliasing techniques, Question: (a) Explain the issue assoc...

Question: (a) Explain the issue associated with vertices when the scan line scan line polygon fill algorithm is being applied? (b) Explain the logic of shortening edges to a

Distribution of dns - application layer , Distribution of DNS 1.By cen...

Distribution of DNS 1.By centralized data base The information contained in the domain  name space must be stored. A simple design  or DNS would have one DNS server that co

Leased satellite channel, LEASED SATELLITE CHANNEL: It may span arbitr...

LEASED SATELLITE CHANNEL: It may span arbitrarily big distance. It is given in the figure below.   Figure Satellite connections are low bandwidth to protect cost

Network virtual terminal - transport layer , Normal 0 false f...

Normal 0 false false false EN-IN X-NONE X-NONE

Explain how contract net works, Question 1 Contract Net Protocol is the...

Question 1 Contract Net Protocol is the best known and most widely used cooperation protocol Explain how contract net works Discuss the benefits and limitations of con

What are the value added services, What are the value added services Ma...

What are the value added services Many organisations are demanding higher services (also called value added services) such as faxing, minimal cost call routing, connectivity to

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd