StartPingCheck

Layout

{
        StartPingCheck High NotTrusted Unencoded
        {
                PingID Single
                {       PingID  U8      }
                {       OldestUnacked   U32     }       // Current oldest "unacked" packet on the sender side
        }
}

Usage

• Used to measure circuit ping times
• PingID is used to determine how backlogged the ping was that was returned (or how hosed the other side is)