prashanth joshi wrote:
Hi,
We have written TCP Reasembly code for our GCDR (Prime) parsing.
Do we need to write a UDP Reassembly code also?
The ethereal seems to do a GTP packet parsing when ever it receives data
on UDP port. Is not reassembly needed in case of UDP packets? If
fragmentation is done in case of UDP then when will it be initiated and
who does the fragmentation.
Regards,
Prashanth
FYI, by replying to an email from a different thread (this one was
originally "Query regarding PDUs", not "Query regarding UDP") instead of
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Anyway, UDP (the protocol) does not have fragmentation and reassembly.
If an application sends more than an MTU's worth of data to UDP, UDP
will happily hand that data (unfragmented) to IP and IP will have to
fragment it. If, on the other hand, the application/upper layer
protocol fragments and reassembles the packets (while also taking care
of retransmissions, timeouts, etc.) then of course a dissector for that
application/ULP could do reassembly.
