Express Path (formerly known as services offloading)

Express Path is a mechanism for processing fast-path packets in the Trio chipset instead of in the SPU. This method reduces the long packet-processing latency that arises when packets are forwarded from network processors to SPUs for processing and back to IOCs for transmission.
The following features are supported:

• Support Inter- and intra-Packet Forwarding Engine Express Path for IPv4
• Per-wing statistics counter of bytes and packets sent out over the wing
• LAG interfaces
• NAT for IPv4
• Active and backup chassis cluster