This set me straight, much appreciated!  Was over-complicating my demo setup, 
got rid of all vlans for Public and Management networks while leaving Guest 
networks with a VLAN range.  No issues now. 

Daniel Farrar

-----Original Message-----
From: Dag Sonstebo <dag.sonst...@shapeblue.com> 
Sent: Thursday, January 10, 2019 11:42 AM
To: users@cloudstack.apache.org
Subject: Re: KVM Agent Error: Incorrect details for private Nic

Hi Daniel,

Yes makes sense and this is your simplest setup. Just remembered I updated this 
blog post a couple of months back - it should see you right 
https://www.shapeblue.com/networking-kvm-for-cloudstack-2018-revisit-for-centos7-and-ubuntu-18-04/
 

Regards,
Dag Sonstebo
Cloud Architect
ShapeBlue
 

On 10/01/2019, 16:37, "Daniel Farrar" <daniel.far...@carringtonmh.com> wrote:

    Thank you Dag, this looks very likely to be the case.  I was able to find a 
scenario yesterday that brought the service up by setting eno1.8 type to 
Ethernet, disabling eno1.8, restarting the agent service, then re-enabling 
eno1.8 as type Vlan.  My intended design was to create a 2 NIC bond (for now 
just single NIC eno1 for troubleshooting), create subinterfaces (ex eno1.8 for 
vlan8), and assign each subinterface to a cloudstack service.  I will try 
letting Cloudstack take care of all vlans and remove the subinterface, pointing 
cloudbr0 directly to eno1 or bond.
    
    ​​​​​Daniel Farrar
    
    -----Original Message-----
    From: Dag Sonstebo [mailto:dag.sonst...@shapeblue.com] 
    Sent: Wednesday, January 9, 2019 10:38 AM
    To: users@cloudstack.apache.org
    Subject: Re: KVM Agent Error: Incorrect details for private Nic
    
    Hi Daniel,
    
    My initial guess without deep diving into this is your NIC naming. The 
CloudStack agent looks for the interface (bond / NIC / team) which supports 
cloudbr0 - and I think maybe in your case it can't find it due to the dotted 
naming "eno1.8" when it probably expects some conventional like "eno16777984".
    
    Is there a reason you've named it like this? This would normally point to a 
VLAN setup (whereas cloudbr0 needs to be trunked in an advanced zone). 
    If not can you rename it?
    
    Code for this is somewhere around here I think:
    
https://github.com/apache/cloudstack/blob/c565db2cf2ab5fdbd2fba65409928dfa7c5f2d25/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java#L1312
    
    Developers - please correct me if I'm wrong.
    
    Regards,
    Dag Sonstebo
    Cloud Architect
    ShapeBlue
     
    
    On 09/01/2019, 14:08, "Daniel Farrar" <daniel.far...@carringtonmh.com> 
wrote:
    
        Hello!  Wanted to see if anyone else has ran into this issue or if you 
can point me in the right direction...
        
        I have 2 KVM CloudStack-agents version 4.11.2 running Centos7 that are 
not able to start the cloudstack-agent service if the agent.propreties file 
specifies the variable "private.network.device=cloudbr0".  This is 
automatically added to the config file when the agent connects to the server, 
if the private network is commented out the service is able to start up but any 
system VMs are unable to connect to the network.  This environment was working 
with my original 2 KVM agents, but after deleting the hosts and rebuilding with 
identical network config I've ran into this issue.  I have logs and configs 
below, any ideas what is wrong?  This is a dev proof of concept environment, so 
I can rebuild if needed.  Thank you for your time!
        
        
        2019-01-07 15:36:10,257 INFO  [cloud.agent.AgentShell] (main:null) 
(logid:) Agent started
        2019-01-07 15:36:10,259 INFO  [cloud.agent.AgentShell] (main:null) 
(logid:) Implementation Version is 4.11.2.0
        2019-01-07 15:36:10,260 INFO  [cloud.agent.AgentShell] (main:null) 
(logid:) agent.properties found at /etc/cloudstack/agent/agent.properties
        2019-01-07 15:36:10,271 INFO  [cloud.agent.AgentShell] (main:null) 
(logid:) Defaulting to using properties file for storage
        2019-01-07 15:36:10,272 INFO  [cloud.agent.AgentShell] (main:null) 
(logid:) Defaulting to the constant time backoff algorithm
        2019-01-07 15:36:10,282 INFO  [cloud.utils.LogUtils] (main:null) 
(logid:) log4j configuration found at /etc/cloudstack/agent/log4j-cloud.xml
        2019-01-07 15:36:10,293 INFO  [cloud.agent.AgentShell] (main:null) 
(logid:) Using default Java settings for IPv6 preference for agent connection
        2019-01-07 15:36:10,384 INFO  [cloud.agent.Agent] (main:null) (logid:) 
id is 15
        2019-01-07 15:36:10,387 WARN  [cloud.resource.ServerResourceBase] 
(main:null) (logid:) Incorrect details for private Nic during initialization of 
ServerResourceBase
        2019-01-07 15:36:10,387 ERROR [cloud.agent.AgentShell] (main:null) 
(logid:) Unable to start agent: Unable to configure LibvirtComputingResource
        
        
        This occurs on version 4.11.1 and 4.11.2, and I've seen other threads 
with this issue on earlier versions that reported downgrading the agent fixed 
this issue.
        
        
        
        NIC CONFIGURATION:
        
        ifcfg-cloudbr0
        DEVICE=cloudbr0
        TYPE=Bridge
        ONBOOT=yes
        BOOTPROTO=none
        IPV6INIT=no
        IPV6_AUTOCONF=no
        DELAY=5
        STP=yes
        
        Ifcfg-eno1.8
        HWADDR=XX:XX:XX:XX:XX:XX
        DEVICE=eno1.8
        ONBOOT=yes
        HOTPLUG=no
        BOOTPROTO=none
        TYPE=Vlan
        VLAN=yes
        BRIDGE=cloudbr0
        
        cloudbr0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
                ether txqueuelen 1000  (Ethernet)
                RX packets 2368  bytes 116316 (113.5 KiB)
                RX errors 0  dropped 0  overruns 0  frame 0
                TX packets 3  bytes 270 (270.0 B)
                TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        
        eno1.8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
                ether txqueuelen 1000  (Ethernet)
                RX packets 3159  bytes 163465 (159.6 KiB)
                RX errors 0  dropped 0  overruns 0  frame 0
                TX packets 1752  bytes 91924 (89.7 KiB)
                TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        
        
        brctl show
        bridge name     bridge id               STP enabled     interfaces
        cloud0          8000.fe00a9fe00fc       no              vnet0
                                                                vnet3
        cloudbr0        8000.64510630b869       yes             eno1.8
                                                                vnet2
                                                                vnet5
        cloudbr1        8000.64510630b869       yes             eno1.7
                                                                vnet1
                                                                vnet4
        virbr0          8000.525400b79d7d       yes             virbr0-nic
        
        
        Agent.properties file networks:
        public.network.device=cloudbr0
        private.network.device=cloudbr0
        guest.network.device=cloudbr1
        
        
        Cloudstack Zone network config:
        
        Zone > Physical Network 1 > Public
        Traffic Type
        
        Public
        
        
        
        Broadcast Domain Type
        
        Vlan
        
        
        
        KVM traffic label
        
        cloudbr0
        
        
        
        10.x.y1
        
        255.255.255.0
        
        vlan://untagged
        
        10.x.y.100
        
        10.x.y.199
        
        [ROOT] system
        
        
        **Note: The public network works fine, virtual routers have network 
access.
        
        Zone > Physical Network 1 > Management
        Traffic Type
        
        Management
        
        
        
        Broadcast Domain Type
        
        Native
        
        
        
        KVM traffic label
        
        cloudbr0
        
        
        
        Pod1
        
        10.x.y.1
        
        255.255.255.0
        
        vlan://8
        
        10.x.y.30
        
        10.x.y.49
        
        system VMs
        
        
        
        Pod1
        
        10.x.y.1
        
        255.255.255.0
        
        vlan://8
        
        10.x.y.50
        
        10.x.y.99
        
        
        
        **NOTE: Tried above Mangement IP ranges with and without vlan tags, 
can't get any system VMs to have network connectivity
        
        
        Zone > Physical Network 1 > Guest
        State
        
        Enabled
        
        VLAN/VNI Range(s)
        
        800-850
        
        KVM traffic label
        
        cloudbr1
        
        
        
        
        Daniel Farrar
        
        
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    dag.sonst...@shapeblue.com
    www.shapeblue.com
    Amadeus House, Floral Street, London  WC2E 9DPUK @shapeblue
      
     
    
    


dag.sonst...@shapeblue.com
www.shapeblue.com
Amadeus House, Floral Street, London  WC2E 9DPUK @shapeblue
  
 

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