Overview

Fast Path MPLS provides MPLS functionalities in the fast path.

MPLS is defined by RFC 3031.

Features

• Packet forwarding

• Label Swapping

• Penultimate Hop Popping

• IPv4 and IPv6 support for Next Hop Label Forwarding Entry

• IPv4 Explicit NULL Label (defined by RFC 3032)

• IPv6 Explicit NULL Label (defined by RFC 3032)

Dependencies

6WINDGate modules

• Fast Path Baseline

• Fast Path Forwarding IPv4

• Fast Path Forwarding IPv6

Linux

• MPLS (pop and swap) is a kernel patch (upstream 4.1).

  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0189197f4416

• MPLS (push) is a kernel patch (upstream 4.3).

  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e3e4712ec096

• MPLS input flag synchronization is a kernel patch (upstream 4.11).

  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24045a03b879