Recent posts

#21

Homework Help / Re: Trying to understand scena...

Last post by networkloser - July 11, 2025, 06:31:58 AM

You mean something like this, right? I am learning slowly.

#22

Homework Help / Re: Trying to understand scena...

Last post by icecream-guy - July 07, 2025, 03:04:38 PM

Do you have metered on-ramps on the highways near you?  otherwise look it up,  consider the highway the wire, consider the on -ramps as the buffer, cars as the packets, the more traffic on the highways, the slower the signals are to allow the cars from the on-ramps onto the highway to their destination. thus allowing all traffic on the highway, eventually (delay), but not so much that the highways are no so much congested (at capacity) and packets dropped (cars crash).

#23

Homework Help / Trying to understand scenario ...

Last post by networkloser - July 07, 2025, 02:28:44 AM

I tried googling in books dot google dot com for related materials on this, but was unable to find any. This is from kurose ross book and it's a bit convoluted. Can anyone guide me here a bit? I don't need exact answer but a way/place to look into.

#24

Homework Help / Re: Why doesn't tcp blindly re...

Last post by networkloser - July 07, 2025, 01:46:19 AM

thanks

#25

Homework Help / Re: Why doesn't tcp blindly re...

Last post by deanwebb - July 04, 2025, 11:34:16 AM

Start with 92-100. If no ack, then retry those a third time.

It's the "sliding window" idea. If transmissions are good, send larger and larger chunks up to a limit. If there is an interruption, start small again and see if that gets through. If not, then there's no point in sending all the other stuff.

#26

Homework Help / Why doesn't tcp blindly rettan...

Last post by networkloser - July 04, 2025, 07:10:36 AM

Host a sends data 92 to 100.
Again host a sends 100 to 120.

The acknowledgement from b hasn't arrived and doesn't arrive within specified timeout interval.

Now my question is why doesn't host a retransmits both 92 to 100 and 100 to 120 when next timer starts. I know it does to make sure it doesn't applies too much pressure in network and wants to verify if there is some problems with receiver. But i forgot where i had read it. Can u send me?

I was following kurose ross networking book but can't find that specific line there no matter how much i searched so far...

#27

Homework Help / Re: What is wnd to end princip...

Last post by networkloser - June 30, 2025, 02:59:19 AM

Thanks 🙏

#28

Homework Help / Re: What is wnd to end princip...

Last post by deanwebb - June 29, 2025, 12:56:32 PM

End to end means being able to track things in a system. In the case of TCP communications, it's confirmation messages. For UDP, as it does not have confirmation messages, then being able to detect breaks in the communication path will enable an administrator to determine if messages are being delivered or not.

#29

Homework Help / What is wnd to end principle i...

Last post by networkloser - June 28, 2025, 08:57:53 AM

The kurose ross book says udp provides error detection is an example of end to end principle in system design. I want to further research humanly on this. Pls 🙏 guide

#30

Homework Help / Re: IP Address Exhaustion solv...

Last post by deanwebb - June 03, 2025, 07:52:07 AM

NAT is a tricky thing, though. Used one time with the Internet connection, it is manageable. If it is used a second time for masking internal traffic, then problems develop. Problems multiply if address spaces are re-used in different areas and NAT is employed to mask the IP address re-use. This last scenario is common in industrial environments.

In the K3S cluster, how many nodes are being used? If the number is over 64K, then we may want to instead go with IPv6 instead of IPv4 with NAT.