# Same VLAN for admin network, floating network & BMC network

**URL:** <https://forums.suse.com/t/same-vlan-for-admin-network-floating-network-bmc-network/30572>\
**Category:** SUSE OpenStack Cloud\
**Created:** [November 20, 2017, 6:19am UTC](https://forums.suse.com/t/same-vlan-for-admin-network-floating-network-bmc-network/30572 "2017-11-20T06:19:41Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![sboddula](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@sboddula](https://forums.suse.com/u/sboddula)\
**Post date:** [November 20, 2017, 6:19am UTC](https://forums.suse.com/t/same-vlan-for-admin-network-floating-network-bmc-network/30572/1 "2017-11-20T06:19:41Z")

</div>

Hi,

I would like to simply my cloud design, hence i am thinking whether it is possible to have both admin/BMC network and floating network can be same. Can someone please assist in how can we achieve this with SUSE OpenStack 7? Thanks in advance.

Thanks & Regards,  
Shashi kanth.

---

<div class="post-metadata">

**Author:** ![Eugen](https://avatars.discourse-cdn.com/v4/letter/e/ebca7d/32.png) [@Eugen](https://forums.suse.com/u/Eugen)\
**Post date:** [November 20, 2017, 12:13pm UTC](https://forums.suse.com/t/same-vlan-for-admin-network-floating-network-bmc-network/30572/2 "2017-11-20T12:13:56Z")

</div>

Hi,

I don’t see a reason why that shouldn’t work. You just have to configure your network.json according to your needs. Read [this](https://www.suse.com/documentation/suse-openstack-cloud-7/singlehtml/book_cloud_deploy/book_cloud_deploy.html#sec.depl.inst.admserv.post.network) carefully to understand the interface mappings and conduits.

In your network.json you define your conduit\_map:

`{
  "attributes": {
    "network": {
      "conduit_map": [
        {
          "conduit_list": {
            [B]"admin"[/B]: {
              "if_list": [
                "+1g1",
                "+1g2"
              ]
            },
            "bastion": {
              "if_list": [
                "+1g3"
              ]
            },
            "traffic": {
              "if_list": [
                "+1g4"
              ]
            }
          },
          "pattern": "team/.*/crowbar"
        },
[...]`

according to your desired layout. These conduits (admin, bastion, traffic) are referred to in the “networks” section:

` "mode": "team",
      "networks": {
        "admin": {
          "add_bridge": false,
          "broadcast": "192.168.124.255",
[B] "conduit": "admin",[/B]
          "mtu": 1500,
          "netmask": "255.255.255.0",
          "ranges": {
            "admin": {
              "end": "192.168.124.11",
              "start": "192.168.124.10"
[...]
          },
          "router": "192.168.124.1",
          "router_pref": 10,
          "subnet": "192.168.124.0",
          "use_vlan": false,
          "vlan": 100
        },
[...]
        "nova_fixed": {
          "add_bridge": false,
          "add_ovs_bridge": false,
          "bridge_name": "br-fixed",
          "broadcast": "192.168.123.255",
[B] "conduit": "admin",[/B]
[...]
          "vlan": 500
        },
        "nova_floating": {
          "add_bridge": false,
          "add_ovs_bridge": false,
          "bridge_name": "br-public",
          "broadcast": "192.168.126.255",
[B] "conduit": "admin",[/B]
          "netmask": "255.255.255.0",
[...]
          "use_vlan": true,
          "vlan": 300
        },
[...]`

The highlighted (bold) conduits are the ones you defined before. So if you decide to use VLANs for your networks, you just configure your floating network to use the admin conduit. The VLAN will be created on top of your admin interface and separate the traffic.

I hope this helps!

---

<div class="post-metadata">

**Author:** ![sboddula](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@sboddula](https://forums.suse.com/u/sboddula)\
**Post date:** [November 20, 2017, 12:48pm UTC](https://forums.suse.com/t/same-vlan-for-admin-network-floating-network-bmc-network/30572/3 "2017-11-20T12:48:08Z")

</div>

Thank you very much, let me try with this suggestion.