[Discuss-gnuradio] Late Packet Arrivals

Hello,

I have an application that is spewing up 'L's indicating late packet arrival at the destination.  How can I go about investigating this problem (e.g., how do I determine what the time of transmission is in the packet and the time it is received by the ettus box)?

I have not done much work in gnuradio before and am taking over an application from someone previous. 

Thanks,

Alex