.\" $OpenBSD: bgpctl.8,v 1.108 2023/04/13 11:52:43 claudio Exp $
.\"
.\" Copyright (c) 2003 Henning Brauer <henning@openbsd.org>
.\"
.\" 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: April 13 2023 $
.Dt BGPCTL 8
.Os
.Sh NAME
.Nm bgpctl
.Nd control the BGP routing daemon
.Sh SYNOPSIS
.Nm bgpctl
.Op Fl jnV
.Op Fl s Ar socket
.Ar command
.Op Ar argument ...
.Sh DESCRIPTION
The
.Nm
program controls the
.Xr bgpd 8
daemon.
Commands may be abbreviated to the minimum unambiguous prefix; for example,
.Cm s su
for
.Cm show summary .
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl j
Create output as JSON object.
.It Fl n
Show neighbors' IP addresses instead of their description.
.It Fl s Ar socket
Use
.Ar socket
to communicate with
.Xr bgpd 8
instead of the default
.Pa /var/run/bgpd.sock.<rdomain>
where
.Ar <rdomain>
is the routing domain
.Nm
is running in.
To administer
.Xr bgpd 8
in a different routing domain, run
.Nm
in said routing domain.
.It Fl V
Show the version and exit.
.El
.Pp
The commands are as follows:
.Bl -tag -width xxxxxx
.It Xo
.Cm fib
.Op Cm table Ar number
.Cm couple
.Xc
Insert the learned routes into the specified Forwarding Information Base
a.k.a. the kernel routing table.
.It Xo
.Cm fib
.Op Cm table Ar number
.Cm decouple
.Xc
Remove the learned routes from the specified Forwarding Information Base
a.k.a. the kernel routing table.
.It Cm log brief
Disable verbose debug logging.
.It Cm log verbose
Enable verbose debug logging.
.It Cm neighbor Ar peer Cm clear Op Ar reason
Stop and restart the BGP session to the specified neighbor.
If a
.Ar reason
is provided, the
.Ar reason
is sent as Administrative Shutdown Communication to the neighbor.
.Ar peer
may be the neighbor's address, description or the word
.Cm group
followed by a group description.
.It Cm neighbor Ar peer Cm destroy
Destroy a previously cloned peer.
The peer must be down before calling this function.
.Ar peer
may be the neighbor's address, description or the word
.Cm group
followed by a group description.
.It Cm neighbor Ar peer Cm down Op Ar reason
Take the BGP session to the specified neighbor down.
If a
.Ar reason
is provided, the
.Ar reason
is sent as Administrative Shutdown Communication to the neighbor.
.Ar peer
may be the neighbor's address, description or the word
.Cm group
followed by a group description.
.It Cm neighbor Ar peer Cm refresh
Request the neighbor to re-send all routes.
Note that the neighbor is not obliged to re-send all routes, or any routes at
all, even if it announced the route refresh capability.
.Ar peer
may be the neighbor's address, description or the word
.Cm group
followed by a group description.
.It Cm neighbor Ar peer Cm up
Bring the BGP session to the specified neighbor up.
.Ar peer
may be the neighbor's address, description or the word
.Cm group
followed by a group description.
.It Cm network add Ar prefix Op Ar argument ...
Add the specified prefix to the list of announced networks.
It is possible to set various path attributes with additional arguments.
Adding a prefix will replace an existing equal prefix, including
prefixes loaded from the configuration.
.It Xo
.Cm network bulk add
.Op Ar argument ...
.Xc
Bulk add specified prefixes to the list of announced networks.
Prefixes should be sent via stdin.
It is possible to set various path attributes with additional arguments.
.It Cm network bulk delete
Bulk remove the specified prefixes from the list of announced networks.
Prefixes should be sent via stdin.
.It Cm network delete Ar prefix
Remove the specified prefix from the list of announced networks.
.It Cm network flush
Remove all dynamically (i.e. with
.Nm Cm network add )
added prefixes from the list of announced networks.
.It Cm network mrt file Ar file filter
Import networks from an MRT table dump for debugging purposes.
.Ar filter
can be specified similarly to the
.Ar show mrt
command.
Only networks matching the filter will be imported.
.It Cm network show Ar family
Show all announced networks.
.Ar family ,
if given, limits the output to the given address family.
The supported families are
.Em inet
and
.Em inet6 .
.It Cm reload Op reason
Reload the configuration file.
Changes to the following neighbor options in
.Xr bgpd.conf 5
only take effect when the session is reset:
.Ic ipsec
and
.Ic tcp md5sig .
.It Cm show fib Ar filter
Show routes from
.Xr bgpd 8 Ns 's
view of the Forwarding Information Base.
.Ar filter
can be an IP address, in which case the route to this address is shown,
or a flag:
.Pp
.Bl -tag -width tableXnumber -compact
.It Cm bgp
Show only routes originating from
.Xr bgpd 8
itself.
.It Cm connected
Show only connected routes.
.It Cm inet
Show only IPv4 routes.
.It Cm inet6
Show only IPv6 routes.
.It Cm nexthop
Show only routes required to reach a BGP nexthop.
.It Cm static
Show only static routes.
.It Cm table Ar number
Show the routing table with ID
.Ar number
instead of the default routing table with ID 0.
.El
.It Cm show interfaces
Show the interface states.
.It Cm show metrics
Dump various BGP statistics in OpenMetrics format.
.It Xo
.Cm show mrt
.Op Ar options
.Ar filter
.Xc
Show routes from an MRT table dump file.
.Ar filter
can be an IP address, a CIDR prefix, an AS filter, a combination or nothing:
.Pp
.Bl -tag -width "address/len or-shorter" -compact
.It Ar address
Show best matching route for address.
.It Ar address Ns Li / Ns Ar len
Show RIB entry for this CIDR prefix.
.It Xo
.Ar address Ns Li / Ns Ar len
.Cm all
.Xc
Show all entries in the specified range.
.\".It Ar address/len Cm longer-prefixes
.It Xo
.Ar address Ns Li / Ns Ar len
.Cm or-shorter
.Xc
Show all entries covering and including the specified prefix.
.It Cm as Ar as
Show all entries with
.Ar as
anywhere in the AS path.
.It Cm empty-as
Show all entries that are internal routes with no AS's in the AS path.
.It Cm neighbor Ar ip
Show only entries from the specified peer.
.It Cm peer-as Ar as
Show all entries with
.Ar as
as leftmost AS.
.It Cm source-as Ar as
Show all entries with
.Ar as
as rightmost AS.
.It Cm transit-as Ar as
Show all entries with
.Ar as
anywhere but rightmost.
.El
.Pp
Additionally, the following
.Ar options
are defined:
.Pp
.Bl -tag -width "file name" -compact
.It Cm detail
Show more detailed output for matching routes.
.It Ar family
Limit the output to the given address family.
.It Cm file Ar name
Read the MRT dump from file
.Ar name
instead of using stdin.
.It Cm peers
Print the neighbor table of MRT TABLE_DUMP_V2 dumps.
Using this on other table dumps will only show the neighbor of the first entry.
.El
.Pp
Multiple options and filters can be used at the same time.
.It Cm show neighbor Ar peer modifier
Show detailed information about the neighbor identified by
.Ar peer ,
according to the given
.Ar modifier :
.Pp
.Bl -tag -width messages -compact
.It Cm messages
Show statistics about sent and received BGP messages.
.It Cm terse
Show statistics in an easily parseable terse format.
The printed numbers are the sent and received open, sent and received
notifications, sent and received updates, sent and received keepalives, and
sent and received route refresh messages plus the current and maximum
prefix count, the number of sent and received updates, sent and
received withdraws, the neighbor's address (or subnet, for a template),
AS number, and finally description.
.It Cm timers
Show the BGP timers.
.El
.Ar peer
may be the neighbor's address, description or the word
.Cm group
followed by a group description.
.It Cm show nexthop
Show the list of BGP nexthops and the result of their validity check.
.It Xo
.Cm show rib
.Op Ar options
.Ar filter
.Xc
Show routes from the
.Xr bgpd 8
Routing Information Base.
.Ar filter
can be an IP address, a CIDR prefix, an AS filter or nothing:
.Pp
.Bl -tag -width "address/len or-shorter" -compact
.It Ar address
Show best matching route for address.
.It Ar address Ns Li / Ns Ar len
Show RIB entry for this CIDR prefix.
.It Xo
.Ar address Ns Li / Ns Ar len
.Cm all
.Xc
Show all entries in the specified range.
.\".It Ar address/len Cm longer-prefixes
.\".It Ar address/len Cm or-longer
.It Xo
.Ar address Ns Li / Ns Ar len
.Cm or-shorter
.Xc
Show all entries covering and including the specified prefix.
.It Cm as Ar as
Show all entries with
.Ar as
anywhere in the AS path.
.It Cm avs Pq Ic valid | unknown | invalid
Show all entries with matching ASAP Validation State (AVS).
.It Cm community Ar community
Show all entries with community
.Ar community .
.It Cm empty-as
Show all entries that are internal routes with no AS's in the AS path.
.It Cm large-community Ar large-community
Show all entries with large-community
.Ar large-community .
.It Cm memory
Show RIB memory statistics.
.It Cm neighbor Ar peer
Show only entries from the specified peer.
.It Cm neighbor group Ar description
Show only entries from the specified peer group.
.It Cm ovs Pq Ic valid | not-found | invalid
Show all entries with matching Origin Validation State (OVS).
.It Cm path-id Ar pathid
Show only entries which match the specified
.Ar pathid .
Must be used together with either
.Cm neighbor
or
.Cm out .
.It Cm peer-as Ar as
Show all entries with
.Ar as
as leftmost AS.
.It Cm source-as Ar as
Show all entries with
.Ar as
as rightmost AS.
.It Cm summary
This is the same as the
.Ic show summary
command.
.It Cm table Ar rib
Show only entries from the specified RIB table.
.It Cm transit-as Ar as
Show all entries with
.Ar as
anywhere but rightmost.
.El
.Pp
Additionally, the following
.Ar options
are defined:
.Pp
.Bl -tag -width "selected" -compact
.It Cm best
Alias for
.Ic selected .
.It Cm detail
Show more detailed output for matching routes.
.It Cm error
Show only prefixes which are marked invalid and were treated as withdrawn.
.It Ar family
Limit the output to the given address family.
.It Cm in
Show routes from the unfiltered Adj-RIB-In.
The
.Cm neighbor
needs to be specified.
.It Cm invalid
Show only routes which are not eligible.
.It Cm leaked
Show only routes where a route leak was detected.
.It Cm out
Show the filtered routes sent to a neighbor.
The
.Cm neighbor
needs to be specified.
.It Cm selected
Show only selected routes.
.It Cm ssv
Show each RIB entry as a single line, with fields separated by semicolons.
Only works if
.Cm detail
is specified.
.El
.Pp
Options are silently ignored when used together with
.Ar summary
or
.Ar memory .
Multiple options can be used at the same time and the
.Ar neighbor
filter can be combined with other filters.
.It Cm show rtr
Show a list of all
.Em RTR
sessions, including information about the session state.
.It Cm show sets
Show a list summarizing all
.Em roa-set ,
.Em as-set ,
.Em prefix-set ,
and
.Em origin-set
tables.
.It Cm show summary
Show a list of all neighbors, including information about the session state
and message counters:
.Pp
.Bl -tag -width xxxxxxxxxxxxxx -compact
.It Neighbor
Description of the neighbor.
.It AS
Autonomous system number.
.It MsgRcvd
Number of messages received from the neighbor.
.It MsgSent
Number of messages sent to the neighbor.
.It OutQ
Number of outgoing messages queued.
.It Up/Down
Number of days and hours that the session has been up.
.It State/PrfRcvd
State of the session / Number of routes received.
The session is up if there is no information for the State column
(Established is not displayed).
.El
.It Cm show summary terse
Show a list of all neighbors, including information about the session state,
in a terse format.
.It Cm show tables
Show a list of all currently loaded fib routing tables.
.El
.Sh FILES
.Bl -tag -width "/var/run/bgpd.sockXXX" -compact
.It Pa /etc/bgpd.conf
default
.Xr bgpd 8
configuration file
.It Pa /var/run/bgpd.sock
default
.Xr bgpd 8
control socket
.El
.Sh SEE ALSO
.Xr bgpd.conf 5 ,
.Xr bgpd 8 ,
.Xr bgplg 8 ,
.Xr bgplgsh 8
.Sh HISTORY
The
.Nm
program first appeared in
.Ox 3.5 .