is a Border Gateway Protocol
daemon which manages the network routing tables.
Its main purpose is to exchange information
with other BGP systems.
uses the Border Gateway Protocol, Version 4,
as described in RFC 1771.
Please refer to that document for more information about BGP.
is usually started at boot time, and can be enabled by
setting the following in
for more information on the boot process
and enabling daemons.
starts up, it reads settings from a configuration file,
process can be controlled using the
The options are as follows:
demotion at startup when the
functionality is used.
will only do demotion at startup when the demotion counter for the group
in question is already greater than 0.
will start handling demotion after all sessions with demotion configured for
the given group have been successfully established.
At system startup,
has the demotion counter for the group
increased until after
is started, so this option should
be used in
to be set to
on the command line.
Overrides the definition of
in the configuration file.
Do not daemonize.
If this option is specified,
will run in the foreground and log to
as the configuration file,
instead of the default
Only check the configuration file for validity.
Open a second, restricted, control socket that
requests are allowed on this socket.
Use an alternate location for the default control socket.
Produce more verbose output.
.%R RFC 1771
.%T "A Border Gateway Protocol 4 (BGP-4)"
.%D March 1995
.%R RFC 1997
.%T "BGP Communities Attribute"
.%D August 1996
.%R RFC 2385
.%T "Protection of BGP Sessions via the TCP MD5 Signature Option"
.%D August 1998
.%R RFC 2796
.%T "BGP Route Reflection - An Alternative to Full Mesh IBGP"
.%D April 2000
.%R RFC 2918
.%T "Route Refresh Capability for BGP-4"
.%D September 2000
.%R RFC 3392
.%T "Capabilities Advertisement with BGP-4"
.%D January 1999
.%R RFC 3682
.%T "The Generalized TTL Security Mechanism (GTSM)"
.%D February 2004
.%R RFC 3765
.%T "NOPEER Community for Border Gateway Protocol"
.%D April 2004
.%R RFC 4760
.%T "Multiprotocol Extensions for BGP-4"
.%D January 2007
.%T "BGP Support for Four-octet AS Number Space"
.%D February 2007