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CLI Operations

This page explains comprehensive examples of operations via GoBGP CLI.

Prerequisites

Assumed that you finished Getting Started.

Configuration

This example starts with the same configuration with Getting Started

Make sure that all the peers are connected.

$ gobgp neighbor
Peer          AS  Up/Down State       |#Received Accepted
10.0.255.1 65001 00:00:04 Establ      |        2        2
10.0.255.2 65002 00:00:04 Establ      |        2        2

Adding or deleting a peer dynamically

You can add a new peer or delete the existing peer without stopping GoBGP daemon. You can do such by adding a new peer configuration or deleting the existing configuration of a peer in your configuration file and sending HUP signal to GoBGP daemon.

In this example, 10.0.255.3 peer is added. The configuration file should be like the following.

[global.config]
  as = 64512
  router-id = "192.168.255.1"

[[neighbors]]
[neighbors.config]
  neighbor-address = "10.0.255.1"
  peer-as = 65001
[neighbors.route-server.config]
  route-server-client = true

[[neighbors]]
[neighbors.config]
  neighbor-address = "10.0.255.2"
  peer-as = 65002
[neighbors.route-server.config]
  route-server-client = true

[[neighbors]]
[neighbors.config]
  neighbor-address = "10.0.255.3"
  peer-as = 65003
[neighbors.route-server.config]
  route-server-client = true

After you send HUP signal (kill command), you should see 10.0.255.3 peer.

$ gobgp neighbor
Peer          AS  Up/Down State       |#Received Accepted
10.0.255.1 65001 00:03:42 Establ      |        2        2
10.0.255.2 65002 00:03:42 Establ      |        2        2
10.0.255.3 65003 00:01:39 Establ      |        1        1

Temporarily disable a configured peer

Sometime you might want to disable the configured peer without removing the configuration for the peer. Likely, again you enable the peer later.

$ gobgp neighbor 10.0.255.1 disable
$ gobgp neighbor
Peer          AS  Up/Down State       |#Received Accepted
10.0.255.1 65001    never Idle(Admin) |        0        0
10.0.255.2 65002 00:12:32 Establ      |        2        2
10.0.255.3 65003 00:10:29 Establ      |        1        1

The state of 10.0.255.1 is Idle(Admin). Let's enable the peer again.

$ gobgp neighbor 10.0.255.1 enable
$ gobgp neighbor
Peer          AS  Up/Down State       |#Received Accepted
10.0.255.1 65001    never Idle        |        0        0
10.0.255.2 65002 00:13:33 Establ      |        2        2
10.0.255.3 65003 00:11:30 Establ      |        1        1

Eventually, the state should be Established again.

$ gobgp neighbor
Peer          AS  Up/Down State       |#Received Accepted
10.0.255.1 65001 00:00:02 Establ      |        2        2
10.0.255.2 65002 00:14:59 Establ      |        2        2
10.0.255.3 65003 00:12:56 Establ      |        1        1

Reset, Reset, and Reset

Various reset operations are supported.

$ gobgp neighbor 10.0.255.1 reset
$ gobgp neighbor 10.0.255.1 softreset
$ gobgp neighbor 10.0.255.1 softresetin
$ gobgp neighbor 10.0.255.1 softresetout

You can know more about CLI command syntax.