int trace_data_len; // len of tracing data that sits just past header (0 means none)
int d1_len; // lengths for additional post header, pre payload data areas
int d2_len;
+ int last_rto; // last receive timeout set so that we don't bash in on every call
route_table_t* rtable; // the active route table
route_table_t* old_rtable; // the previously used rt, sits here to allow for draining
route_table_t* new_rtable; // route table under construction