bgpctl - Man Page

control the Border Gateway Protocol daemon

Synopsis

bgpctl[-jn] [-s socket] command [argument ...]

Description

The bgpctl program controls the bgpd(8) daemon. Commands may be abbreviated to the minimum unambiguous prefix; for example, s su for show summary.

The options are as follows:

-j

Create output as JSON object.

-n

Show neighbors' IP addresses instead of their description.

-s socket

Use socket to communicate with bgpd(8) instead of the default /run/bgpd/bgpd.sock.<rdomain> where <rdomain> is the routing domain bgpctl is running in. To administer bgpd(8) in a different routing domain, run bgpctl in said routing domain.

The commands are as follows:

fib [table number] couple

Insert the learned routes into the specified Forwarding Information Base a.k.a. the kernel routing table.

fib [table number] decouple

Remove the learned routes from the specified Forwarding Information Base a.k.a. the kernel routing table.

log brief

Disable verbose debug logging.

log verbose

Enable verbose debug logging.

neighbor peer clear [reason]

Stop and restart the BGP session to the specified neighbor. If a reason is provided, the reason is sent as Administrative Shutdown Communication to the neighbor. peer may be the neighbor's address, description or the word group followed by a group description.

neighbor peer destroy

Destroy a previously cloned peer. The peer must be down before calling this function. peer may be the neighbor's address, description or the word group followed by a group description.

neighbor peer down [reason]

Take the BGP session to the specified neighbor down. If a reason is provided, the reason is sent as Administrative Shutdown Communication to the neighbor. peer may be the neighbor's address, description or the word group followed by a group description.

neighbor peer 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. peer may be the neighbor's address, description or the word group followed by a group description.

neighbor peer up

Bring the BGP session to the specified neighbor up. peer may be the neighbor's address, description or the word group followed by a group description.

network add prefix [arguments]

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.

network bulk [arguments] [add]

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. If neither add or delete is given, add is the default.

network bulk delete

Bulk remove the specified prefixes from the list of announced networks. Prefixes should be sent via stdin.

network delete prefix

Remove the specified prefix from the list of announced networks.

network flush

Remove all dynamically (i.e. with bgpctl network add) added prefixes from the list of announced networks.

network mrt file file filter

Import networks from an MRT table dump for debugging purposes. filter can be specified similarly to the show mrt command. Only networks matching the filter will be imported.

network show family

Show all announced networks. family, if given, limits the output to the given address family. The supported families are inet and inet6.

reload [reason]

Reload the configuration file. Changes to the following neighbor options in bgpd.conf(5) only take effect when the session is reset: ipsec, tcp md5sig, and export [none | default-route].

show fib filter

Show routes from bgpd(8)'s view of the Forwarding Information Base. filter can be an IP address, in which case the route to this address is shown, or a flag:

connected

Show only connected routes.

static

Show only static routes.

bgp

Show only routes originating from bgpd(8) itself.

nexthop

Show only routes required to reach a BGP nexthop.

inet

Show only IPv4 routes.

inet6

Show only IPv6 routes.

table number

Show the routing table with ID number instead of the default routing table with ID 0.

show interfaces

Show the interface states.

show mrt [options] filter

Show routes from an MRT table dump file. filter can be an IP address, a CIDR prefix, an AS filter, a combination or nothing:

address

Show best matching route for address.

address/len

Show RIB entry for this CIDR prefix.

address/len all

Show all entries in the specified range.

address/len or-shorter

Show all entries covering and including the specified prefix.

as as

Show all entries with as anywhere in the AS path.

empty-as

Show all entries that are internal routes with no AS's in the AS path.

neighbor ip

Show only entries from the specified peer.

peer-as as

Show all entries with as as leftmost AS.

source-as as

Show all entries with as as rightmost AS.

transit-as as

Show all entries with as anywhere but rightmost.

Additionally, the following options are defined:

detail

Show more detailed output for matching routes.

family

Limit the output to the given address family.

file name

Read the MRT dump from file

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. name instead of using stdin.

Multiple options and filters can be used at the same time.

show neighbor peer modifier

Show detailed information about the neighbor identified by peer, according to the given modifier:

messages

Show statistics about sent and received BGP messages.

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.

timers

Show the BGP timers.

peer may be the neighbor's address, description or the word group followed by a group description.

show nexthop

Show the list of BGP nexthops and the result of their validity check.

show rib [options] filter

Show routes from the bgpd(8) Routing Information Base. filter can be an IP address, a CIDR prefix, an AS filter or nothing:

address

Show best matching route for address.

address/len

Show RIB entry for this CIDR prefix.

address/len all

Show all entries in the specified range.

address/len or-shorter

Show all entries covering and including the specified prefix.

as as

Show all entries with as anywhere in the AS path.

community community

Show all entries with community community.

large-community large-community

Show all entries with large-community large-community.

empty-as

Show all entries that are internal routes with no AS's in the AS path.

memory

Show RIB memory statistics.

neighbor peer

Show only entries from the specified peer.

neighbor group description

Show only entries from the specified peer group.

peer-as as

Show all entries with as as leftmost AS.

source-as as

Show all entries with as as rightmost AS.

summary

This is the same as the show summary command.

table rib

Show only entries from the specified RIB table.

transit-as as

Show all entries with as anywhere but rightmost.

ovs (valid | not-found | invalid)

Show all entries with matching Origin Validation State (OVS).

Additionally, the following options are defined:

best

Alias for selected.

error

Show only prefixes which are marked invalid and were treated as withdrawn.

selected

Show only selected routes.

ssv

Show each RIB entry as a single line, with fields separated by semicolons. Only works if detail is specified.

detail

Show more detailed output for matching routes.

family

Limit the output to the given address family.

in

Show routes from the unfiltered Adj-RIB-In. The neighbor needs to be specified.

out

Show the filtered routes sent to a neighbor. The neighbor needs to be specified.

Options are silently ignored when used together with summary or memory. Multiple options can be used at the same time and the neighbor filter can be combined with other filters.

show rtr

Show a list of all RTR sessions, including information about the session state.

show sets

Show a list summarizing all roa-set, as-set, prefix-set, and origin-set tables.

show summary

Show a list of all neighbors, including information about the session state and message counters:

Neighbor

Description of the neighbor.

AS

Autonomous system number.

MsgRcvd

Number of messages received from the neighbor.

MsgSent

Number of messages sent to the neighbor.

OutQ

Number of outgoing messages queued.

Up/Down

Number of days and hours that the session has been up.

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).

show summary terse

Show a list of all neighbors, including information about the session state, in a terse format.

show tables

Show a list of all currently loaded fib routing tables.

Files

/etc/bgpd.conf

default bgpd(8) configuration file

/run/bgpd/bgpd.sock

default bgpd(8) control socket

See Also

bgpd.conf(5), bgpd(8), bgplg(8), bgplgsh(8)

Standards

C. Alaettinoglu, C. Villamizar, E. Gerich, D. Kessens, D. Meyer, T. Bates, D. Karrenberg, and M. Terpstra, Routing Policy Specification Language (RPSL), RFC 2622, June 1999.

History

The bgpctl program first appeared in OpenBSD 3.5.

Referenced By

bgpd(8), bgpd.conf(5).

February 16, 2021