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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...
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.
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 ...
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...
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...
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...
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...