About Iluvnetwork

Iluvnetwork · 12-08-2017

Case 1: PC A sends a packet (8bytes padding, 20B TCP Header, 20B IP Header, 18B Ethernet Header) with 0 sequence number to PC B. PC B will send an ACK Message (ACK Number = 0) Right? Case 2:PC A sends a packet (Phantom Byte(1B), 7bytes padding, 20B T...

Iluvnetwork · 12-08-2017

My understanding is If PC A sends a packet (ACK = 80, Sequence Number = 1450, Payload = 1460), PC B will send an ACK Message (ACK = 2910, Sequence Number = RANDOM). If I am misunderstanding, please let me know.

Iluvnetwork · 12-07-2017

I learned that 'traceroute' command is pretty useful for troubleshooting. The problem is that some devices ignore ICMP request and I get requested timed out message instead of time exceeded message. [traceroute google.com result] 1 172.30.1.254 ...

Iluvnetwork · 12-06-2017

In VTP Server Mode, switch saves VLAN configuration information in a file named vlan.dat in Flash Memory. In VTP Transparent Mode, switch saves VLAN configuration information in a file named vlan.dat in NVRAM. In VTP Client Mode, switch saves VLAN in...

Iluvnetwork · 12-05-2017

How does UDP manage to preserve message boundaries? I am guessing that UDP can preserve messages boundaries because UDP doesn't care about the RWND/CWND or congestion when it transmits the data, Right? Lastly, my understanding is that: TCP data ge...

Iluvnetwork · 12-07-2017

If you don't mind, may I ask one more question regarding ARP aging time and MAC-Address aging time? Ten PCs (1 to 10) are connected to the switch.1. PC1's ARP Aging Time < SW's MAC Address Aging Time -> PC1 sends an ARP request and SW floods it. SW r...

Iluvnetwork · 12-07-2017

My understanding:TCP -> There is a myriad of possibilities how the receiver's TCP driver dequeues received TCP segments to the application. EX) If A sends 2000B to B, B might get 1000B + 1000B, or 500B + 1000B + 500B, or 100B + 200B + 700B + 1000B (C...

Iluvnetwork · 12-07-2017

Thanks :) Helped a lot.

Iluvnetwork · 12-05-2017

Thanks a lot :)

Iluvnetwork · 12-04-2017

Thanks a lot. Very Clear Explanation!

Member Since	‎09-12-2017 04:12 AM
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TCP Phantom Byte vs Padding & ACK Number Question

Sequence & ACK Number Question!

Traceroute Command Question :)

Why vlan.dat is saved in Flash Memory not in NVRAM in VTP Server Mode?

UDP - Message Boundaries Question :)

Re: UDP - Message Boundaries Question :)

Re: UDP - Message Boundaries Question :)

Re: ARP Table Aging Time vs MAC ADD Table Aging Time

Re: Baseband/Broadband Question

Re: Modem Question :)