Hi Pardeep,
dont call me sir yaar,
i think u r diagram is wrong according to my knowledge
it is as follows
A---FIN----->B this is request to terminate the conn.
from A to B
A<---ACK----B acknowledge of request
A<---FIN----B this is request to terminate the conn.
from B to A
A----ACK--->B acknowledge of request
now step 2 & step 3 can not combine this is because
when B send ACK to A for For some time data can be
flowing from B to A so it has to wait till data flow
is stop then after finishing sending DATA B can send
FIN to termininate conn.
see sometimes 2&3 can be combine in some situation.
this is why tearing connection is 4 way hand shaking.
in u r dia. i dont know why u have mention fin & ack
in step 3
also in step 1 also there can not be ack.
see ack is acknowledge of request in step 1 A is
sending request why it is sending ack.
--- Pardeep Sharma <[EMAIL PROTECTED]>
wrote:
>
> Hi sir thanx to u to describe me but sir i have a
> doubt in only Step3 is that as u told me HostA send
> FIN flag to HostB for terminate the connection and
> also send ACK to HostB for Acknowlegement of
> previous packet in STEP1.
> So now HostB send ACK to HostA ,it means HostB
> teling to HostA is that i acknowledge ur FIN
> flag,now HostA cant send any data to HostB,but HostB
> can send data to HostA in Step2
> But my problem arises now:-
> In Step3 I think so HostB send only FIN flag to
> HostA Becoz HostB already acknowledge to HostA in
> previous step.
> So i want to say m i right or wrong,i think i
> should be FIN only flag used in Step third
> In step 4 HostA send Ack for FIN flag of
> HostB,now HostB cant send data to HostB
> In this way connection terminate on both sides.
>
> I waiting plz,reply me soon
> Regards:
> Pardeep
>
>
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Bye ,
Take Care,
Best Regards,
Jitendra Chaudhari
Jeetu(G2)
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