isabella232 / ops-gobgp

Ops-GoBGP

Ops-GoBGP relaying OpenSwitch and GoBGP. Specifically, you can relay the bgp settings to gobgp that you set in the console of OpenSwitch, and can relay the route that has GoBGP to OpenSwitch.

This page explains how to run Ops-GoBGP. This example have to relay settings and routes between OpenSwitch and Gobgp using Ops-GoBGP in docker container.

Prerequisites

Install the docker environment referring to the here.

Running OpenSwitch container

• Pull image

$ sudo docker pull osrg/openswitch
$ sudo docker images
REPOSITORY           TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
osrg/openswitch   latest              6509d58db7f5        2 hours ago         1.338 GB

• Run container

sudo docker run --privileged -v /tmp:/tmp -v /dev/log:/dev/log -v /sys/fs/cgroup:/sys/fs/cgroup -h ops --name ops osrg/openswitch /sbin/init &
$ sudo docker ps -a
CONTAINER ID        IMAGE                COMMAND             CREATED             STATUS              PORTS               NAMES
452f31c31be6        osrg/openswitch   "/sbin/init"        4 seconds ago       Up 2 seconds                            ops
$ sudo docker exec -it ops bash

Installing GoBGP

• Preparation

 bash-4.3# echo "nameserver 8.8.8.8" >> /etc/resolv.conf

• Install GoBGP

 bash-4.3# go get -v github.com/osrg/gobgp/gobgpd
 bash-4.3# go get -v github.com/osrg/gobgp/gobgp

Installing Ops-GoBGP

• Clone source

 bash-4.3# git clone https://github.com/osrg/ops-gobgp.git

• Install dependent libraries of python

 bash-4.3# cd ops-gobgp
 bash-4.3# pip install -r pip-requires.txt

Starting relay using the Ops-GoBGP

• Setting OpenSwitch

bash-4.3# vtysh
switch# show running-config
Current configuration:
!
!
!
switch# configure terminal
switch(config)# router bgp 65001
switch(config-router)# bgp router-id 10.0.255.1
switch(config-router)# neighbor 10.0.255.2 remote-as 65002
switch(config-router)# do show running-config
Current configuration:
!
!
!
router bgp 65001
    bgp router-id 10.0.255.1
    neighbor 10.0.255.2 remote-as 65002
!

• Starting GoBGP

bash-4.3# gobgpd -p --openswitch
INFO[0000] gobgpd started
INFO[0000] Read Configuration from OpenSwitch

• Starting Ops-GoBGP

bash-4.3# cd ~/ops-gobgp
bash-4.3# python openswitch.py
2016-01-06 20:49:36,412 - connection - INFO - Connecting to OpenSwitch...
2016-01-06 20:49:36,618 - connection - INFO - Connected
2016-01-06 20:49:36,639 - connection - INFO - Connecting to Gobgp...
2016-01-06 20:49:36,640 - connection - INFO - Connected
2016-01-06 20:49:36,641 - connection - INFO - Run run_ops_to_gogbp thread...
2016-01-06 20:49:36,642 - connection - INFO - Run run_gogbp_to_ops thread...
2016-01-06 20:49:36,644 - connection - INFO - Wait for a change the bestpath from gobgp...

If GoBGP has routes in Global Rib, routes relayed to the OpenSwitch as follows:

bash-4.3# vtysh
switch# show ip bgp
Status codes: s suppressed, d damped, h history, * valid, > best, = multipath,
              i internal, S Stale, R Removed
Origin codes: i - IGP, e - EGP, ? - incomplete

Local router-id 10.0.255.1
   Network          Next Hop            Metric LocPrf Weight Path
*  10.10.10.0/24    10.0.255.2            0      0  32768 65002 i
*  10.10.11.0/24    10.0.255.2            0      0  32768 65002 i
*  10.10.12.0/24    10.0.255.2            0      0  32768 65002 i
Total number of entries 3

Licensing

Ops-GoBGP is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.