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安裝中文字典英文字典辭典工具!
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- NACK vs. ACK? When to use one over the other one?
It's faster if we just send NACK (n) for the lost packets instead of sending an ACK for each received packet So when which situations would one use ACK over NACK and viceversa?
- DHCP - General relativity - Network Engineering Stack Exchange
Not sure about general relativity, but yes, the DHCP server is the "source of truth" When a client reconnects to a network it was previously attached to, it may include the Requested IP Address field, offering a hint to the server that it would prefer it's old IP address back, however it may no longer be available (either due to the server leasing it back out to another client, or a client
- Fast retransmit: NACK OR ACK? - Network Engineering Stack Exchange
I have a question regarding fast retransmit For example if packet#9 is lost We send 3 ACK NACK#9 after each other But my question is, are we sending 3 acks or nacks in a row with fast retransmit?
- TCP and Go-Back-N - Network Engineering Stack Exchange
To add to the previous answer: A "Cumulative ACK" implies that all the bytes sent by the sender (so far) have been received correctly by the receiver In order words, when the sender receives an ACK with sequence number n, the receiver is telling the sender that it has received every byte up to and including n-1 and it is expecting byte n next In "selective ACKs", the receiver sends ACKs for
- How do you configure a TACACS+ tac_plus server on Ubuntu 16. 04 that . . .
How do you configure a TACACS+ tac_plus server on Ubuntu 16 04 that authenticates against Microsoft Active Directory?
- routing - Do we send ack frames in ethernet? if not then how does a . . .
So first off, do ethernet sends ack frames or not? if it doesn't : then how does a router know whether its neighbors are down or not? if it does : then is it cumulative ack with an ack timer or o
- IPv6 addressing (slash notation) - Network Engineering Stack Exchange
The slash notation is another way of writing the subnet mask It works the same for IPv4 and IPv6 The number 3 indicates the number of consecutive 1's in the mask Since the mask is the same size as the address, that means that for IPv6, the subnet mask is three 1's followed by 125 0's (3+125=128 bits) For an IPv4 address it means three 1's followed by 29 0's (3+29=32 bits) It can also be
- Trex not receiving any packets - Network Engineering Stack Exchange
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