[rdo-users] [Tripleo] Composable role OVS-DPDK compute node with single NIC

[Dan Sneddon]

On Wed, Nov 15, 2017 at 2:41 PM, Samuel Monderer <
smonderer at vasonanetworks.com> wrote:

> Hi,
>
> I managed to deploy a compute node with ovs-dpdk using two NICs. The first
> for the provisioning network and control plane, the other NIC is used
> tenant network over ovs-dpdk.
>
> I then tried to use only a single nic for provisioning and ovs-dpdk.
> I used the nic configuration below for the compute nodes running ovs-dpdk
> but encountered two problems.
> First the tenant network was working (wasn't able to get DHCP running and
> even when I manually configured it wasn't able to reach the router)
> Second the default route on control plane is not set even though it is
> configured in /etc/sysconfig/network-scripts/route-br-ex
>
> Samuel
>
> OsNetConfigImpl:
> type: OS::Heat::StructuredConfig
> properties:
> group: os-apply-config
> config:
> os_net_config:
> network_config:
> -
> type: ovs_user_bridge
> name: {get_input: bridge_name}
> use_dhcp: false
> dns_servers: {get_param: DnsServers}
> addresses:
> -
> ip_netmask:
> list_join:
> - '/'
> - - {get_param: ControlPlaneIp}
> - {get_param: ControlPlaneSubnetCidr}
> routes:
> -
> ip_netmask: 169.254.169.254/32
> next_hop: {get_param: EC2MetadataIp}
> -
> default: true
> next_hop: {get_param: ControlPlaneDefaultRoute}
> members:
> -
> type: ovs_dpdk_port
> name: dpdk0
> members:
> -
> type: interface
> name: nic1
> -
> type: vlan
> vlan_id: {get_param: InternalApiNetworkVlanID}
> addresses:
> -
> ip_netmask: {get_param: InternalApiIpSubnet}
> -
> type: vlan
> vlan_id: {get_param: TenantNetworkVlanID}
> addresses:
> -
> ip_netmask: {get_param: TenantIpSubnet}
>
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>
Samuel,

Can you attach an unmodified version of this NIC config, rather than
copy/paste into the email?

I think you have an issue here:

members:
-
type: ovs_dpdk_port
name: dpdk0
members:
-
type: interface
name: nic1

It appears that you have the ovs_dpdk_port as a member of the user bridge,
but then you have the NIC and the VLANs as members of the ovs_dpdk_port,
but the VLANs should be members of the bridge, not the ovs_dpdk_port.

But that might not be the case, which is why I would like to see the
original unmodifed NIC config.

-- 
Dan Sneddon         |  Senior Principal OpenStack Engineer
dsneddon at redhat.com |  redhat.com/openstack
dsneddon:irc        |  @dxs:twitter
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