we had given 120mb link to customer. A end we have GSR and at B end we had 7200 router--Both end Gig port. When we kept MTU=1700 at both end or default 1500 . customer was able to open indian web pages
When we changed MTU on transmission equipment to >9000 Problem get solved.
But i am not clear what was the cause of this problem
if anybody aware then please let me know