TCP segment encapsulate it IP payload,if some way ip packet is lost in transmission.
some time IP packet will be fragmented,
i ask if this one fragment part will be lost in transmission.how can fix it?
all other packet will be drop?
asked Jul 31, 2018 at 16:02
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1At least I have no idea what you're asking...– Zac67 ♦Jul 31, 2018 at 16:03
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1It is still not clear what you’re asking– Ron TrunkJul 31, 2018 at 16:09
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fragmented ip packet,if drop in transmission TCP payload already drop??– Manjitha TesharaJul 31, 2018 at 16:10
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Still no luck.. i dont get it.– user36472Jul 31, 2018 at 16:59
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TCP segment go inside IP packets,there are many problems.ip packets can get dropped with TCP payload?– Manjitha TesharaJul 31, 2018 at 17:12
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1 Answer
If a fragment of a packet gets lost, the destination host will be unable to rebuild the packet, and the packet will be discarded.
IP is connectionless, and it has no facility to request missing fragments or packets. Upper-layer protocols or applications must request any missing packets to be resent, if necessary (for some protocols or applications, e.g. real-time, resending old data can be a bad thing). Connection-oriented protocols, e.g. TCP, will request any missing data, but connectionless protocols, e.g. UDP will not request missing data, so it would be up to the application or application-layer protocol to request missing data.
answered Jul 31, 2018 at 17:13
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1If a packet is dropped, then TCP would not get the segment that is the payload of the packet. TCP guarantees in-order data delivery, and it has a mechanism to request missing segment be resent from the source TCP.– Ron Maupin ♦Jul 31, 2018 at 17:21
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