Regarding connector netlink running out of buffer space.

Hi, I am trying to benchmark connector netlink and am passing a file and sending the same to listening userspace app's using connectors i.e. cat filename > /dev/myconnector and an app listening. When I do this I always run into ENOBUFS or "No buffer space available" for files greater than 2MB. Now how should I fix this? a) Increase the socket buffers? My rmem_max is 131071 and rmem_default is 126976 b) Should I check for the seq and ack and resend the packets? If yes how much packets should I not discard to do a resend? Are there any other ways? Also I am not sure why local loop would cause enobufs? I am running this on a quad core with 3G of RAM. Thanks.