Loss and Delay

Hi,
I have a BTS connected to Internet(backhaul) on one side and Wireless
Modem(in PC) on the other side which accesses websites via that BTS.

When trying to access websites via the modem from PC, i find it to be
slow. I analysed the data flow using the Protocol analyser
'Ethereal'.
So, I ran Ethereal in my PC(modem side) and Ethereal at the place
where my BTS is connected to the internet(backhaul).


I find that SYN request is getting fired from the wireless modem to
BTS and later to the corresponding website.
I am able to find this in the Ethereal running on the modem side .


I find that SYN-ACK is being fired back from the website to BTS via
the Ethreal running at that place.
But, that SYN-ACK does not reach the modem from BTS. Here is the SYN-
ACK loss problem
Because of this, after 3 seconds, SYN is being sent once again by the
Modem to the corresponding website via BTS and the whole cycle of
above process gets repeated until the SYN-ACK is received and the
connection gets established.


If that SYN-ACK loss is avoided, that 3 seconds delay can be avoided
and this will quicken whole process.
The situation is very bad when there is Multiple SYN-ACK losses at
frequent intervals.


How to avoid that SYN-ACK loss ? What could be the possible reasons
for this SYN-ACK loss scenario here ?
Kindly provide me some ideas/solutions for this.


Thx in advans,
Karthik Balaguru

 

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