Wireshark · Wireshark-users: Re: [Wireshark-users] tshark or dumpcap ring buffer limitations

[Jeff Morriss <jeff.morriss.ws@xxxxxxxxx>]

Joseph Laibach wrote:
> All,
>
>                 I’m running a continuous capture of data. I’m trying to 
> use a ring buffer of 25000 files with an 8mb file size. The problem is 
> that the ring buffer starts overwriting after 10000 files. I’ve tried it 
> with dumpcap and tshark. The command is using the –b files:25000 –b 
> filesize:8192. Is there a limitation to the size of the ring buffer for 
> dumpcap and/or tshark?

Turns out that if you specify the number of files as 0 then 
dumpcap/*shark will create an unlimited number of files.  I don't know 
if that's acceptable or if you really need it to roll over at 25,000, 
but it's an option.