Chapter 8 Hardware Acceleration : NP6 Acceleration : NP6 session fast path requirements : Packet fast path requirements
  
Packet fast path requirements
Packets within the session must then also meet packet requirements.
• Incoming packets must not be fragmented.
• Outgoing packets must not require fragmentation to a size less than 385 bytes. Because of this requirement, the configured MTU (Maximum Transmission Unit) for network processors’ network interfaces must also meet or exceed the network processors’ supported minimum MTU of 385 bytes.