networking sfc¶
Service Function Chaining is a mechanism for overriding the basic destination based forwarding that is typical of IP networks. Service Function Chains consist of an ordered sequence of Service Functions (SFs). SFs are virtual machines (or potentially physical devices) that perform a network function such as firewall, content cache, packet inspection, or any other function that requires processing of packets in a flow from point A to point B even though the SFs are not literally between point A and B from a routing table perspective.
Network v2