.\" $OpenBSD: ldpd.conf.5,v 1.14 2013/06/04 06:41:35 jmc Exp $ .\" .\" Copyright (c) 2009 Michele Marchetto .\" Copyright (c) 2005, 2006 Esben Norby .\" Copyright (c) 2004 Claudio Jeker .\" Copyright (c) 2003, 2004 Henning Brauer .\" Copyright (c) 2002 Daniel Hartmeier .\" .\" Permission to use, copy, modify, and distribute this software for any .\" purpose with or without fee is hereby granted, provided that the above .\" copyright notice and this permission notice appear in all copies. .\" .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" .Dd $Mdocdate: June 4 2013 $ .Dt LDPD.CONF 5 .Os .Sh NAME .Nm ldpd.conf .Nd Label Distribution Protocol daemon configuration file .Sh DESCRIPTION The .Xr ldpd 8 daemon implements the Label Distribution Protocol as described in RFC 5036. .Sh SECTIONS The .Nm config file is divided into four main sections. .Bl -tag -width xxxx .It Sy Macros User-defined variables may be defined and used later, simplifying the configuration file. .It Sy Global Configuration Global settings for .Xr ldpd 8 . .It Sy Interfaces Configuration Interface-specific parameters. .It Sy Targeted Neighbors Configuration Targeted neighbor specific parameters. .El .Sh MACROS Much like .Xr cpp 1 or .Xr m4 1 , macros can be defined that will later be expanded in context. Macro names must start with a letter, digit, or underscore, and may contain any of those characters. Macro names may not be reserved words (for example, .Ic cost ) . Macros are not expanded inside quotes. .Pp For example: .Bd -literal -offset indent hi="2" interface em0 { cost $hi } .Ed .Sh GLOBAL CONFIGURATION All interface related settings can be configured globally and per interface. The only settings that can be set globally and not overruled are listed below. .Pp .Bl -tag -width Ds -compact .It Xo .Ic fib-update .Pq Ic yes Ns | Ns Ic no .Xc If set to .Ic no , do not update the Label Forwarding Information Base, a.k.a. the kernel routing table. The default is .Ic yes . .Pp .It Ic router-id Ar address Set the router ID; in combination with labelspace it forms the LSR-ID. .Pp .It Ic keepalive Ar seconds Set the keepalive timeout in seconds. The default value is 180; valid range is 1\-65535. .Pp .It Xo .Ic distribution .Pq Ic independent Ns | Ns Ic ordered .Xc Select the distribution mode. .Ic independent distributes labels at any time; .Ic ordered forces .Xr ldpd 8 to wait a mapping from nexthop before distributing it to peers. .Pp .It Xo .Ic retention .Pq Ic liberal Ns | Ns Ic conservative .Xc Select the retention mode. .Ic conservative retains just the labels advertised from nexthop; .Ic liberal mode retains every label received, even those not advertised from nexthops. .Pp .It Xo .Ic advertisement .Pq Ic unsolicited Ns | Ns Ic ondemand .Xc Select the advertisement mode. .Ic unsolicited advertises labels according to the distribution mode; .Ic ondemand advertises labels solely upon explicit request from peers. .Pp .It Xo .Ic targeted-hello-accept .Pq Ic yes Ns | Ns Ic no .Xc If set to .Ic yes , allow LDP sessions to be established with remote neighbors that have not been specifically configured. The default is .Ic no . .El .Sh INTERFACES Each interface can have several parameters configured individually, otherwise they are inherited. .Bd -literal -offset indent interface em0 { } .Ed .Pp Interface-specific parameters are listed below. .Bl -tag -width Ds .It Ic link-hello-holdtime Ar seconds Set the hello holdtime in seconds. The maximum time .Xr ldpd 8 will wait between two consecutive hello messages from a peer before it is marked as being down. The default value is 15. .It Ic link-hello-interval Ar seconds Set the hello interval in seconds. The default value is 5; valid range is 1\-65535. .El .Sh TARGETED NEIGHBORS Each targeted neighbor can have several parameters configured individually, otherwise they are inherited. .Bd -literal -offset indent targeted-neighbor A.B.C.D { } .Ed .Pp Targeted-neighbor specific parameters are listed below. .Bl -tag -width Ds .It Ic targeted-hello-holdtime Ar seconds Set the hello holdtime in seconds. The maximum time .Xr ldpd 8 will wait between two consecutive hello messages from a peer before it is marked as being down. The default value is 45. .It Ic targeted-hello-interval Ar seconds Set the hello interval in seconds. The default value is 5; valid range is 1\-65535. .El .Sh FILES .Bl -tag -width "/etc/ldpd.conf" -compact .It Pa /etc/ldpd.conf .Xr ldpd 8 configuration file .El .Sh SEE ALSO .Xr ldpctl 8 , .Xr ldpd 8 , .Xr rc.conf.local 8 .Sh HISTORY The .Nm file format first appeared in .Ox 4.6 .