Help! errors in captured UDP stream that I know is perfectly clean of errors

[Roni Peleg <Roni.Peleg () bigbandnet com>]

Hi Wiresharkers,

I'm a newbie so please pardon me if I describe my problem clumsily.

I'm using Wireshark version:  "1.3.6FpgaTxOutput (SVN Rev 32781 from /trunk)"

I do the next:

1. I inject a perfectly clean MPEG stream over UDP  into a PC with Ethernet 1Gigabit interface network card.
   (I know it's clean for sure, and anyway I also checked by some reliable testing tools such as StreamXpert running on 
the same PC, connected to the same interface port)
2. I close all windows, no program is running on the PC. The UDP stream continues flowing in all the time.
3. I open Wireshark, set a capture-file and start recording (I tried with and without filtering only the relevant IP).
                - I choose the correct interface port for sure (Dektec 1Gigabit-Ethernet network card)
                - I choose to capture in Promiscuous mode
                - I write the name of the file to be recorded into
                - I uncheck the "update list of packets in real time" checkbox
                - "Enable MAC...":yes,   "Enable Network...":no,   "Enable transport...":yes.
                - the I press "start".
4. From the resulting capture-file I'm striping the MPEG stream out of the UDP encapsulation. (did this a hundred 
times, it's 100% reliable)
5. in the resulting MPEG stream I get "Continuity-Counter Errors" which means packets were lost or mixed with another 
stream.
6. Actually, instead of steps 4-5 I later on simply ran Wireshark's MPEG-TS-checker and indeed the Wireshark itself 
reported the same  CC Errors!

Have you ever encountered such a problem?
Could it be that Wireshark is too weak to record a ~50Mbps stream into a capture file?
What should I do??

Thanks in advance,
Roni


___________________________________________________________________________
Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
Archives:    http://www.wireshark.org/lists/wireshark-users
Unsubscribe: https://wireshark.org/mailman/options/wireshark-users
             mailto:wireshark-users-request () wireshark org?subject=unsubscribe