How to configure "external" network in network.json

This document (7022474) is provided subject to the disclaimer at the end of this document.


SUSE OpenStack Cloud 7


There are two separate networks, each on a dedicated switch. First network is for SUSE OpenStack Cloud 7 traffic, the second is for accessing iscsi storage resources.

The requirement is to have an "external" network for pacemaker sbd device, rabbitmq and database shared storage.


Define an "external" network in network.json according to "Custom Network Configuration, Providing Access to External Networks" chapter in SUSE OpenStack Cloud 7 Deployment Guide.

           "external" : {
               "add_bridge" : false,
               "vlan" : XXX,
               "ranges" : {
                  "host" : {
                     "start" : "",
                     "end" : ""
               "broadcast" : "",
               "netmask" : "",
               "conduit" : "intf1",
               "subnet" : "",
               "use_vlan" : true

To have this "external" network before configuring barclamps use 'crowbarctl' command for a particular node.

On admin node:
#crowbarctl network interface enable default external
#crowbarctl network hostip allocate default external host

Then on
#systemctl restart chef-client.service

Afterwards configure iscsi initiator on the nodes. Deploy pacemaker, rabbitmq and database barclamps.


Many external networks can be defined. Crowbar must be aware of them, have an interface enabled in the external network with an ip address allocated.


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7022474
  • Creation Date: 19-Dec-2017
  • Modified Date:03-Mar-2020
    • SUSE Open Stack Cloud

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