MPIP(4) - Device Drivers Manual #

MPIP(4) - Device Drivers Manual

NAME #

mpip - MPLS IP layer 2 pseudowire

SYNOPSIS #

pseudo-device mpip

DESCRIPTION #

The mpip interface is used to create an MPLS IP layer 2 tunnel between two points.

An mpip interface can be created at runtime using the ifconfig mpip‌N create command, or by setting up a hostname.if(5) configuration file for netstart(8). The interface itself can be configured with ifconfig(8).

The local MPLS label, the remote MPLS label and neighbor, use of pseudowire control words, or flow-aware transport are normally configured after negotiation with a remote system using ldpd(8), but it is also possible to configure them manually using ifconfig(8).

EXAMPLES #

Create a pseudowire with local label 20 and remote label 21 on neighbor 10.254.0.1:

# ifconfig mpip5 create
# ifconfig mpip5 mplslabel 20 pweneighbor 21 10.254.0.1
# ifconfig mpip5 up

Disable the use of the Pseudowire Emulation Edge-to-Edge (PWE3) Control Word, and enable the use of a Flow label for Flow-Aware Transport of Pseudowires:

# ifconfig mpip5 -pwecw pwefat

SEE ALSO #

mpe(4), mpw(4), hostname.if(5), ifconfig(8), ldpd(8), netstart(8)

STANDARDS #

S. Bryant, P. Pate, Pseudo Wire Emulation Edge-to-Edge (PWE3) Architecture, RFC 3985, March 2005.

S. Bryant, G. Swallow, and L. Martini, Pseudowire Emulation Edge-to-Edge (PWE3) Control Word for Use over an MPLS PSN, RFC 4385, February 2005.

S. Bryant, C. Filsfils, and U. Drafz, and V. Kompella, and J. Regan, and S. Amante, Flow-Aware Transport of Pseudowires over an MPLS Packet Switched Network, RFC 6391, November 2011.

HISTORY #

The mpip kernel interface first appeared in OpenBSD 6.5.

OpenBSD 7.5 - March 18, 2021