On 2016年06月28日 14:33, Zhang Chen wrote:
primary guest response
pkt(seq=primary_seq+1,ack=client_seq+1+data_len,flag=ACK)
secondary guest response
pkt(seq=secondary_seq+1,ack=client_seq+1+data_len,flag=ACK)
Is ACK a must here?
Yes.
Looks not, e.g what happens if guest does not use piggybacking acks?
If guest does not use piggybacking acks, it will send a independent
packet for ack.
we will get this packet.
like:
pkt(seq=xxxx,ack=xxx,flag=ACK).
Right, so looks like if guest want to send some data too, it can send
tcp packet without ACK set?