Hi Dag,

Thank you for guiding me, i know it's a weird use case and probably would
never be required in a production environment. I will definitely try to
make a dummy interface and give it to the guest network target bridge. I
know it would be out of the scope of this email trail for you to explain me
tagged and untagged networking in L2 and L3 networks, but I would search
around the internet and ping this thread if I'm again stuck at some
specific issue after I reach my university's lab. Appreciate your help.

Thanks,
Parth Patel

On Fri, 6 Apr 2018 at 17:06 Dag Sonstebo <dag.sonst...@shapeblue.com> wrote:

> Hi Parth,
>
> Take a look through the full email trail – I think we discussed this
> earlier on. In short the answer is no – by definition you can not run
> completely untagged isolated networks in an advanced zone – but “tagged”
> means different things for L2 and L3 isolation. The real answer - “it
> depends” – an advanced zone always relies on some sort of guest network
> isolation, which in it’s simplest form equates to L2 VLANs. If you were to
> invest time, effort and money into an SDN solution like Nuage or Nicira/NSX
> you could potentially get around it – but complexity and cost goes up. You
> could have a play with something like GRE tunnelling (L3) – but in my
> experience this doesn’t scale well, eats a ton of CPU cycles and may not be
> fit for purpose. Again you are looking at a more complex solution.
>
> Regarding the dummy network interface it looks to me like a simple module
> install and configuration – see e.g.
> https://www.question-defense.com/2012/11/26/linux-create-fake-ethernet-interface
> . Not my post and I can’t vouch for it’s validity – but the process seems
> straight forward:
>
> [root@kvm1 hooks]# lsmod | grep dummy
> [root@kvm1 hooks]# modprobe dummy
> [root@kvm1 hooks]# lsmod | grep dummy
> dummy                   2714  0
> [root@kvm1 hooks]# ip link set name eth99 dev dummy0
> [root@kvm1 hooks]# ifconfig eth99
> eth99     Link encap:Ethernet  HWaddr 92:BF:A6:30:20:3E
>           BROADCAST NOARP  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
> Dag Sonstebo
> Cloud Architect
> ShapeBlue
>
>
> dag.sonst...@shapeblue.com
> www.shapeblue.com
> 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
> @shapeblue
>
>
>
> On 06/04/2018, 11:45, "Parth Patel" <parthpatel2...@gmail.com> wrote:
>
>     Hi Dag,
>
>     Thanks for the response. I am currently looking into VLANs and network
>     configuration for my case. But I want to know one thing: are "untagged"
>     VLAN networks sufficient for an advanced zone to function with two
>     networks? I did not state I do not want to use VLANs for networking
> but I
>     wanted to know if ACS advanced zone would function if VLANs are
> untagged?
>     (The network router/switch did not support them). According to my
> knowledge
>     I would have to dig much deeper into kernel files to provide a dummy
>     interface as systemctl restart network would not function properly,
> still
>     appreciate the advice. I will look into this more and see what I can do
>     with it.
>
>     Thanks,
>     Parth Patel
>
>     On Fri, 6 Apr 2018 at 13:59 Dag Sonstebo <dag.sonst...@shapeblue.com>
> wrote:
>
>     > Hi Parth,
>     >
>     > Keep in mind you are in unchartered waters – so there may be some
>     > stumbling blocks before you get this to work.
>     >
>     > I suspect what you have to do is change cloudbr1 such that it is
> backed by
>     > a fake or dummy ethernet interface. What seems to happen is the agent
>     > script looks for the network device backing the bridge rather than
> the
>     > bridge itself.
>     > This would mean your setup is like this:
>     >
>     >  Physical eth0 -> cloudbr0 > handles management and public
>     >  Dummy eth1 -> cloudbr1 > handles isolated guest traffic and allows
> for
>     > isolated VLANs internally on the host
>     >
>     > Keep in mind the context here – you have stated you don’t want VLANs
>     > traversing your physical network, hence we are trying to get this
> working
>     > on a single host only. How you configure your IP ranges for
> management and
>     > public is something you need to experiment with and see what works
> for you.
>     >
>     > Regards,
>     > Dag Sonstebo
>     > Cloud Architect
>     > ShapeBlue
>     >
>     > From: Parth Patel <parthpatel2...@gmail.com>
>     > Reply-To: "users@cloudstack.apache.org" <users@cloudstack.apache.org
> >
>     > Date: Friday, 6 April 2018 at 07:30
>     > To: "users@cloudstack.apache.org" <users@cloudstack.apache.org>
>     > Subject: Re: Untagged Networking for Advanced Zone possible?
>     >
>     > Hi Dag,
>     >
>     > When I tried your method and created a NIC-less bridge, following
> are the
>     > contents of my ifcfg-* network files:
>     >
>     > ifcfg-cloudbr0:
>     > TYPE=Bridge
>     > PROXY_METHOD=none
>     > BROWSER_ONLY=no
>     > BOOTPROTO=none
>     > DEFROUTE=yes
>     > IPV4_FAILURE_FATAL=no
>     > NAME=cloudbr0
>     > UUID=25aabe73-8e11-408f-a4ec-c03b26d3aa6e
>     > DEVICE=cloudbr0
>     > ONBOOT=yes
>     > IPADDR=172.16.20.13
>     > PREFIX=16
>     > GATEWAY=172.16.0.1
>     > DNS1=8.8.8.8
>     > DNS2=172.16.0.1
>     > NM_CONTROLLED=no
>     >
>     > ifcfg-cloudbr1:
>     > TYPE=Bridge
>     > IPV4_FAILURE_FATAL=no
>     > NAME=cloudbr1
>     > UUID=25aabe73-8e11-408f-a4ec-c03b26d3aa6e
>     > DEVICE=cloudbr1
>     > ONBOOT=yes
>     > NM_CONTROLLED=no
>     >
>     > ifcfg-eno1:
>     > TYPE=Ethernet
>     > PROXY_METHOD=none
>     > BROWSER_ONLY=no
>     > BOOTPROTO=none
>     > DEFROUTE=yes
>     > IPV4_FAILURE_FATAL=no
>     > NAME=eno1
>     > UUID=25aabe73-8e11-408f-a4ec-c03b26d3aa6e
>     > DEVICE=eno1
>     > ONBOOT=yes
>     > IPADDR=172.16.20.13
>     > PREFIX=16
>     > GATEWAY=172.16.0.1
>     > DNS1=8.8.8.8
>     > DNS2=172.16.0.1
>     > NM_CONTROLLED=no
>     > BRIDGE=cloudbr0
>     >
>     > brctl show output:
>     > [root@srvr3 ~]# brctl show
>     > bridge name bridge id STP enabled interfaces
>     > cloud0 8000.000000000000 no
>     > cloudbr0 8000.3464a92a09f3 no eno1
>     > cloudbr1 8000.000000000000 no
>     > virbr0 8000.5254002dabdb yes virbr0-nic
>     >
>     >
>     >
>     > when adding a host in advanced zone it shows the following error:
> Could
>     > not find network 'cloudbr1'
>     >
>     > 2018-04-04 02:03:11,887 DEBUG [c.c.u.s.SSHCmdHelper]
>     > (qtp510113906-14:ctx-707b53e5 ctx-8d49ccb3) (logid:dff92f23)
> Executing cmd:
>     > /usr/share/cloudstack-common/scripts/util/keystore-cert-import
>     > /etc/cloudstack/agent/agent.properties /etc/cloudstack/agent/
>     > 2018-04-04 02:03:15,686 DEBUG [c.c.h.k.d.LibvirtServerDiscoverer]
>     > (qtp510113906-14:ctx-707b53e5 ctx-8d49ccb3) (logid:dff92f23)
> Succeeded to
>     > import certificate in the keystore for agent on the KVM host:
> 172.16.20.13.
>     > Agent secured and trusted.
>     > 2018-04-04 02:03:15,688 DEBUG [c.c.u.s.SSHCmdHelper]
>     > (qtp510113906-14:ctx-707b53e5 ctx-8d49ccb3) (logid:dff92f23)
> Executing cmd:
>     > cloudstack-setup-agent  -m 172.16.20.13 -z 1 -p 1 -c 1 -g
>     > 1fd67886-c5d9-3464-ac73-46689258b34e -a --pubNic=cloudbr0
> --prvNic=cloudbr0
>     > --guestNic=cloudbr1 --hypervisor=kvm
>     > 2018-04-04 02:03:19,674 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-af4b26a6) (logid:4c5c40d4) Begin cleanup
>     > expired async-jobs
>     > 2018-04-04 02:03:19,683 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-af4b26a6) (logid:4c5c40d4) End cleanup
> expired
>     > async-jobs
>     > 2018-04-04 02:03:20,022 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-f1d46df0) (logid:a021b44c) Found 0
> routers to
>     > update status.
>     > 2018-04-04 02:03:20,025 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-f1d46df0) (logid:a021b44c) Found 0 VPC
> networks
>     > to update Redundant State.
>     > 2018-04-04 02:03:20,029 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-f1d46df0) (logid:a021b44c) Found 0
> networks to
>     > update RvR status.
>     > 2018-04-04 02:03:22,518 DEBUG [c.c.c.ConsoleProxyManagerImpl]
>     > (consoleproxy-1:ctx-9d047585) (logid:3b4da034) Skip capacity scan as
> there
>     > is no Primary Storage in 'Up' state
>     > 2018-04-04 02:03:29,677 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-4378508d) (logid:9de3110e) Begin cleanup
>     > expired async-jobs
>     > 2018-04-04 02:03:29,695 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-4378508d) (logid:9de3110e) End cleanup
> expired
>     > async-jobs
>     > 2018-04-04 02:03:35,796 DEBUG [c.c.s.StatsCollector]
>     > (StatsCollector-2:ctx-a6998a7a) (logid:174df0f0) AutoScaling Monitor
> is
>     > running...
>     > 2018-04-04 02:03:35,812 DEBUG [c.c.s.StatsCollector]
>     > (StatsCollector-1:ctx-51d8b17f) (logid:8d7cca2e) HostStatsCollector
> is
>     > running...
>     > 2018-04-04 02:03:35,812 DEBUG [c.c.s.StatsCollector]
>     > (StatsCollector-3:ctx-db3df7da) (logid:c38b9f19) StorageCollector is
>     > running...
>     > 2018-04-04 02:03:39,675 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-26aea785) (logid:48c9a5ba) Begin cleanup
>     > expired async-jobs
>     > 2018-04-04 02:03:39,686 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-26aea785) (logid:48c9a5ba) End cleanup
> expired
>     > async-jobs
>     > 2018-04-04 02:03:49,677 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-ec993f07) (logid:98d10d6c) Begin cleanup
>     > expired async-jobs
>     > 2018-04-04 02:03:49,692 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-ec993f07) (logid:98d10d6c) End cleanup
> expired
>     > async-jobs
>     > 2018-04-04 02:03:50,021 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-592f1702) (logid:39d0b341) Found 0
> routers to
>     > update status.
>     > 2018-04-04 02:03:50,024 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-592f1702) (logid:39d0b341) Found 0 VPC
> networks
>     > to update Redundant State.
>     > 2018-04-04 02:03:50,027 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-592f1702) (logid:39d0b341) Found 0
> networks to
>     > update RvR status.
>     > 2018-04-04 02:03:52,519 DEBUG [c.c.c.ConsoleProxyManagerImpl]
>     > (consoleproxy-1:ctx-099c555a) (logid:1e1eb23a) Skip capacity scan as
> there
>     > is no Primary Storage in 'Up' state
>     > 2018-04-04 02:03:59,674 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-33034d0a) (logid:1c504485) Begin cleanup
>     > expired async-jobs
>     > 2018-04-04 02:03:59,684 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-33034d0a) (logid:1c504485) End cleanup
> expired
>     > async-jobs
>     > 2018-04-04 02:04:09,675 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-c5079da9) (logid:8b320bb8) Begin cleanup
>     > expired async-jobs
>     > 2018-04-04 02:04:09,689 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-c5079da9) (logid:8b320bb8) End cleanup
> expired
>     > async-jobs
>     > 2018-04-04 02:04:19,505 DEBUG [c.c.u.s.SSHCmdHelper]
>     > (qtp510113906-14:ctx-707b53e5 ctx-8d49ccb3) (logid:dff92f23) SSH
> command:
>     > cloudstack-setup-agent  -m 172.16.20.13 -z 1 -p 1 -c 1 -g
>     > 1fd67886-c5d9-3464-ac73-46689258b34e -a --pubNic=cloudbr0
> --prvNic=cloudbr0
>     > --guestNic=cloudbr1 --hypervisor=kvm
>     > SSH command output:Starting to configure your system:
>     > Configure SElinux ...         [OK]
>     > Configure Network ...         [OK]
>     > Configure Libvirt ...         [OK]
>     > Configure Firewall ...        [OK]
>     > Configure Nfs ...             [OK]
>     > Configure cloudAgent ...      [OK]
>     > CloudStack Agent setup is done!
>     >
>     >
>     > 2018-04-04 02:04:19,670 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-3953edaa) (logid:223c6612) Begin cleanup
>     > expired async-jobs
>     > 2018-04-04 02:04:19,678 INFO  [o.a.c.f.j.i.AsyncJobManagerImpl]
>     > (AsyncJobMgr-Heartbeat-1:ctx-3953edaa) (logid:223c6612) End cleanup
> expired
>     > async-jobs
>     > 2018-04-04 02:04:20,020 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-d51c2a8c) (logid:31404001) Found 0
> routers to
>     > update status.
>     > 2018-04-04 02:04:20,022 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-d51c2a8c) (logid:31404001) Found 0 VPC
> networks
>     > to update Redundant State.
>     > 2018-04-04 02:04:20,023 DEBUG
> [c.c.n.r.VirtualNetworkApplianceManagerImpl]
>     > (RouterStatusMonitor-1:ctx-d51c2a8c) (logid:31404001) Found 0
> networks to
>     > update RvR status.
>     > 2018-04-04 02:04:22,514 DEBUG [c.c.c.ConsoleProxyManagerImpl]
>     > (consoleproxy-1:ctx-03cb5ba3) (logid:b63f8dea) Skip capacity scan as
> there
>     > is no Primary Storage in 'Up' state
>     > 2018-04-04 02:04:22,597 DEBUG [o.a.c.c.p.RootCACustomTrustManager]
>     > (pool-7-thread-1:null) (logid:) A client/agent attempting connection
> from
>     > address=172.16.20.13 has presented these certificate(s):
>     > Certificate [1] :
>     >  Serial: da4b61927e0b90f4
>     >   Not Before:Tue Apr 03 14:03:11 IST 2018
>     >   Not After:Thu Apr 04 02:03:11 IST 2019
>     >   Signature Algorithm:SHA256withRSA
>     >   Version:3
>     >   Subject DN:C=cloudstack, O=cloudstack, OU=cloudstack,
> CN=srvr3.cloud.priv
>     >   Issuer DN:CN=ca.cloudstack.apache.org<
> http://ca.cloudstack.apache.org>
>     >   Alternative Names:[[7, 172.16.20.13], [2, 172.16.20.13]]
>     > Certificate [2] :
>     >  Serial: ca8575145c21dcc5
>     >   Not Before:Tue Apr 03 13:55:06 IST 2018
>     >   Not After:Fri Mar 27 01:55:06 IST 2048
>     >   Signature Algorithm:SHA256withRSA
>     >   Version:3
>     >   Subject DN:CN=ca.cloudstack.apache.org<
> http://ca.cloudstack.apache.org>
>     >   Issuer DN:CN=ca.cloudstack.apache.org<
> http://ca.cloudstack.apache.org>
>     >   Alternative Names:null
>     > 2018-04-04 02:04:22,600 DEBUG [o.a.c.c.p.RootCACustomTrustManager]
>     > (pool-7-thread-1:null) (logid:) Client/agent connection from
>     > ip=172.16.20.13 has been validated and trusted.
>     > 2018-04-04 02:04:23,304 DEBUG [c.c.a.t.Request]
>     > (AgentManager-Handler-2:null) (logid:) Seq 5-0: Scheduling the first
>     > command  { Cmd , MgmtId: -1, via: 5, Ver: v1, Flags: 1,
>     >
> [{"com.cloud.agent.api.StartupRoutingCommand":{"cpuSockets":1,"cpus":4,"speed":2000,"memory":11202912256,"dom0MinMemory":1073741824,"poolSync":false,"supportsClonedVolumes":false,"caps":"hvm,snapshot","pool":"/root","hypervisorType":"KVM","hostDetails":{"Host.OS.Kernel.Version":"3.10.0-693.el7.x86_64","com.cloud.network.Networks.RouterPrivateIpStrategy":"HostLocal","Host.OS.Version":"7.4.1708","Host.OS":"CentOS"},"hostTags":[],"groupDetails":{},"type":"Routing","dataCenter":"1","pod":"1","cluster":"1","guid":"1fd67886-c5d9-3464-ac73-46689258b34e-LibvirtComputingResource","name":"srvr3.cloud.priv","id":5,"version":"4.11.0.0","iqn":"iqn.1994-05.com.redhat:895c24ab79d","publicIpAddress":"172.16.20.13","publicNetmask":"255.255.0.0","publicMacAddress":"34:64:a9:2a:09:f3","privateIpAddress":"172.16.20.13","privateMacAddress":"34:64:a9:2a:09:f3","privateNetmask":"255.255.0.0","storageIpAddress":"172.16.20.13","storageNetmask":"255.255.0.0","storageMacAddress":"34:64:a9:2a:09:f3","resourceName":"LibvirtComputingResource","gatewayIpAddress":"172.16.0.1","wait":0}},{"com.cloud.agent.api.StartupStorageCommand":{"totalSize":0,"poolInfo":{"uuid":"b0c95dc8-bd46-4d3d-a4ee-90cb869d035e","host":"172.16.20.13","localPath":"/var/lib/libvirt/images","hostPath":"/var/lib/libvirt/images","poolType":"Filesystem","capacityBytes":486035005440,"availableBytes":478874988544},"resourceType":"STORAGE_POOL","hostDetails":{},"type":"Storage","dataCenter":"1","pod":"1","guid":"1fd67886-c5d9-3464-ac73-46689258b34e-LibvirtComputingResource","name":"srvr3.cloud.priv","id":5,"version":"4.11.0.0","resourceName":"LibvirtComputingResource","wait":0}}]
>     > }
>     > 2018-04-04 02:04:23,315 DEBUG [c.c.a.t.Request]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Seq 5-0:
> Processing
>     > the first command  { Cmd , MgmtId: -1, via: 5, Ver: v1, Flags: 1,
>     >
> [{"com.cloud.agent.api.StartupRoutingCommand":{"cpuSockets":1,"cpus":4,"speed":2000,"memory":11202912256,"dom0MinMemory":1073741824,"poolSync":false,"supportsClonedVolumes":false,"caps":"hvm,snapshot","pool":"/root","hypervisorType":"KVM","hostDetails":{"Host.OS.Kernel.Version":"3.10.0-693.el7.x86_64","com.cloud.network.Networks.RouterPrivateIpStrategy":"HostLocal","Host.OS.Version":"7.4.1708","Host.OS":"CentOS"},"hostTags":[],"groupDetails":{},"type":"Routing","dataCenter":"1","pod":"1","cluster":"1","guid":"1fd67886-c5d9-3464-ac73-46689258b34e-LibvirtComputingResource","name":"srvr3.cloud.priv","id":5,"version":"4.11.0.0","iqn":"iqn.1994-05.com.redhat:895c24ab79d","publicIpAddress":"172.16.20.13","publicNetmask":"255.255.0.0","publicMacAddress":"34:64:a9:2a:09:f3","privateIpAddress":"172.16.20.13","privateMacAddress":"34:64:a9:2a:09:f3","privateNetmask":"255.255.0.0","storageIpAddress":"172.16.20.13","storageNetmask":"255.255.0.0","storageMacAddress":"34:64:a9:2a:09:f3","resourceName":"LibvirtComputingResource","gatewayIpAddress":"172.16.0.1","wait":0}},{"com.cloud.agent.api.StartupStorageCommand":{"totalSize":0,"poolInfo":{"uuid":"b0c95dc8-bd46-4d3d-a4ee-90cb869d035e","host":"172.16.20.13","localPath":"/var/lib/libvirt/images","hostPath":"/var/lib/libvirt/images","poolType":"Filesystem","capacityBytes":486035005440,"availableBytes":478874988544},"resourceType":"STORAGE_POOL","hostDetails":{},"type":"Storage","dataCenter":"1","pod":"1","guid":"1fd67886-c5d9-3464-ac73-46689258b34e-LibvirtComputingResource","name":"srvr3.cloud.priv","id":5,"version":"4.11.0.0","resourceName":"LibvirtComputingResource","wait":0}}]
>     > }
>     > 2018-04-04 02:04:23,325 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to BareMetalDiscoverer
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to NetscalerElement
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to HypervServerDiscoverer
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to BaremetalPxeManagerImpl
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to XcpServerDiscoverer
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to NiciraNvp
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to BrocadeVcsElement
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to Ovm3Discoverer
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.h.o.r.Ovm3Discoverer]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646)
>     > createHostVOForConnectedAgent: Host[-0-null]
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to LxcServerDiscoverer
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to NetworkUsageManagerImpl
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to
>     > PremiumSecondaryStorageManagerImpl
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to Ovs
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to ConsoleProxyManagerImpl
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to OvmDiscoverer
>     > 2018-04-04 02:04:23,326 DEBUG [c.c.r.ResourceManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Dispatching
> resource
>     > state event CREATE_HOST_VO_FOR_CONNECTED to KvmServerDiscoverer
>     > 2018-04-04 02:04:23,486 DEBUG [c.c.r.ResourceState]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Resource state
>     > update: [id = 1; name = srvr3.cloud.priv; old state = Creating;
> event =
>     > InternalCreated; new state = Enabled]
>     > 2018-04-04 02:04:23,487 DEBUG [c.c.h.Status]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646)
> Transition:[Resource
>     > state = Enabled, Agent event = AgentConnected, Host id = 1, name =
>     > srvr3.cloud.priv]
>     > 2018-04-04 02:04:23,512 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) create
>     > ClusteredAgentAttache for 1
>     > 2018-04-04 02:04:23,516 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Connect to
>     > listener: XcpServerDiscoverer
>     > 2018-04-04 02:04:23,517 DEBUG [c.c.h.x.d.XcpServerDiscoverer]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Not XenServer
> so
>     > moving on.
>     > 2018-04-04 02:04:23,517 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Connect to
>     > listener: HypervServerDiscoverer
>     > 2018-04-04 02:04:23,517 DEBUG [c.c.h.h.d.HypervServerDiscoverer]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Not Hyper-V
>     > hypervisor, so moving on.
>     > 2018-04-04 02:04:23,517 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Connect to
>     > listener: ClusteredVirtualMachineManagerImpl
>     > 2018-04-04 02:04:23,517 DEBUG [c.c.v.VirtualMachineManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Received
> startup
>     > command from hypervisor host. host id: 1
>     > 2018-04-04 02:04:23,517 INFO
> [c.c.v.VirtualMachinePowerStateSyncImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Reset VM
> power state
>     > sync for host: 1
>     > 2018-04-04 02:04:23,547 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Connect to
>     > listener: SecurityGroupListener
>     > 2018-04-04 02:04:23,547 INFO  [c.c.n.s.SecurityGroupListener]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Received a
> host
>     > startup notification
>     > 2018-04-04 02:04:23,552 DEBUG [c.c.a.t.Request]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Seq
>     > 1-1865897620614938625: Sending  { Cmd , MgmtId: 55884536686396, via:
>     > 1(srvr3.cloud.priv), Ver: v1, Flags: 100011,
>     >
> [{"com.cloud.agent.api.CleanupNetworkRulesCmd":{"interval":1951,"wait":0}}]
>     > }
>     > 2018-04-04 02:04:23,555 INFO  [c.c.n.s.SecurityGroupListener]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Scheduled
> network
>     > rules cleanup, interval=1951
>     > 2018-04-04 02:04:23,556 INFO  [c.c.n.s.SecurityGroupListener]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Received a
> host
>     > startup notification
>     > 2018-04-04 02:04:23,556 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Connect to
>     > listener: NetworkOrchestrator
>     > 2018-04-04 02:04:23,563 DEBUG [o.a.c.e.o.NetworkOrchestrator]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Host's
>     > hypervisorType is: KVM
>     > 2018-04-04 02:04:23,580 DEBUG [o.a.c.e.o.NetworkOrchestrator]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
>     > CheckNetworkCommand to check the Network is setup correctly on Agent
>     > 2018-04-04 02:04:23,600 DEBUG [c.c.a.t.Request]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Seq
>     > 1-1865897620614938626: Sending  { Cmd , MgmtId: 55884536686396, via:
>     > 1(srvr3.cloud.priv), Ver: v1, Flags: 100111,
>     >
> [{"com.cloud.agent.api.CheckNetworkCommand":{"networkInfoList":[{"physicalNetworkId":200,"privateNetworkName":"cloudbr0","publicNetworkName":"cloudbr0","guestNetworkName":"cloudbr1"}],"wait":0}}]
>     > }
>     > 2018-04-04 02:04:23,607 DEBUG [c.c.a.t.Request]
>     > (AgentManager-Handler-3:null) (logid:) Seq 1-1865897620614938625:
>     > Processing:  { Ans: , MgmtId: 55884536686396, via: 1, Ver: v1,
> Flags: 10,
>     > [{"com.cloud.agent.api.Answer":{"result":true,"wait":0}}] }
>     > 2018-04-04 02:04:23,730 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentManager-Handler-4:null) (logid:) Ping from 1(srvr3.cloud.priv)
>     > 2018-04-04 02:04:23,731 DEBUG
> [c.c.v.VirtualMachinePowerStateSyncImpl]
>     > (AgentManager-Handler-4:null) (logid:) Process host VM state report
> from
>     > ping process. host: 1
>     > 2018-04-04 02:04:23,731 DEBUG
> [c.c.v.VirtualMachinePowerStateSyncImpl]
>     > (AgentManager-Handler-4:null) (logid:) Process VM state report.
> host: 1,
>     > number of records in report: 0
>     > 2018-04-04 02:04:23,734 DEBUG
> [c.c.v.VirtualMachinePowerStateSyncImpl]
>     > (AgentManager-Handler-4:null) (logid:) Done with process of VM state
>     > report. host: 1
>     > 2018-04-04 02:04:23,741 INFO  [c.c.a.m.AgentManagerImpl]
>     > (AgentManager-Handler-4:null) (logid:) PingMap for agent: 1 will not
> be
>     > updated because agent is no longer in the PingMap
>     > 2018-04-04 02:04:23,745 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentManager-Handler-4:null) (logid:) Not processing
> PingRoutingCommand
>     > for agent id=0; can't find the host in the DB
>     > 2018-04-04 02:04:23,953 DEBUG [c.c.a.t.Request]
>     > (AgentManager-Handler-5:null) (logid:) Seq 1-1865897620614938626:
>     > Processing:  { Ans: , MgmtId: 55884536686396, via: 1, Ver: v1,
> Flags: 110,
>     >
> [{"com.cloud.agent.api.CheckNetworkAnswer":{"_reconnect":false,"result":false,"details":"Can
>     > not find network: cloudbr1","wait":0}}] }
>     > 2018-04-04 02:04:23,953 DEBUG [c.c.a.t.Request]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Seq
>     > 1-1865897620614938626: Received:  { Ans: , MgmtId: 55884536686396,
> via:
>     > 1(srvr3.cloud.priv), Ver: v1, Flags: 110, { CheckNetworkAnswer } }
>     > 2018-04-04 02:04:23,953 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Details from
>     > executing class com.cloud.agent.api.CheckNetworkCommand: Can not find
>     > network: cloudbr1
>     > 2018-04-04 02:04:23,954 WARN  [o.a.c.e.o.NetworkOrchestrator]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Unable to
> setup
>     > agent 1 due to Can not find network: cloudbr1
>     > 2018-04-04 02:04:23,956 DEBUG [c.c.a.m.AgentAttache]
>     > (AgentManager-Handler-5:null) (logid:) Seq 1-1865897620614938626: No
> more
>     > commands found
>     > 2018-04-04 02:04:23,957 WARN  [o.a.c.alerts]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) AlertType:: 7
> |
>     > dataCenterId:: 1 | podId:: 1 | clusterId:: null | message:: Incorrect
>     > Network setup on agent, Reinitialize agent after network names are
> setup,
>     > details : Can not find network: cloudbr1
>     > 2018-04-04 02:04:23,997 INFO  [c.c.u.e.CSExceptionErrorCode]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Could not find
>     > exception: com.cloud.exception.ConnectionException in error code
> list for
>     > exceptions
>     > 2018-04-04 02:04:23,998 WARN  [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Monitor
>     > NetworkOrchestrator says there is an error in the connect process
> for 1 due
>     > to Incorrect Network setup on agent, Reinitialize agent after
> network names
>     > are setup, details : Can not find network: cloudbr1
>     > 2018-04-04 02:04:23,998 INFO  [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Host 1 is
>     > disconnecting with event AgentDisconnected
>     > 2018-04-04 02:04:24,000 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) The next
> status of
>     > agent 1is Alert, current status is Connecting
>     > 2018-04-04 02:04:24,001 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Deregistering
> link
>     > for 1 with state Alert
>     > 2018-04-04 02:04:24,001 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Remove Agent
> : 1
>     > 2018-04-04 02:04:24,001 DEBUG [c.c.a.m.ConnectedAgentAttache]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Processing
>     > Disconnect.
>     > 2018-04-04 02:04:24,001 DEBUG [c.c.a.m.AgentAttache]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Seq
>     > 1-1865897620614938625: Sending disconnect to class
>     > com.cloud.network.security.SecurityGroupListener
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
> com.cloud.hypervisor.xenserver.discoverer.XcpServerDiscoverer
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
> com.cloud.hypervisor.hyperv.discoverer.HypervServerDiscoverer
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.vm.ClusteredVirtualMachineManagerImpl
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.network.security.SecurityGroupListener
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
> org.apache.cloudstack.engine.orchestration.NetworkOrchestrator
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.storage.secondary.SecondaryStorageListener
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.storage.listener.StoragePoolMonitor
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.deploy.DeploymentPlanningManagerImpl
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.storage.LocalStoragePoolListener
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.network.SshKeysDistriMonitor
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
> com.cloud.network.router.VpcVirtualNetworkApplianceManagerImpl
>     > 2018-04-04 02:04:24,002 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.consoleproxy.ConsoleProxyListener
>     > 2018-04-04 02:04:24,005 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.network.SshKeysDistriMonitor
>     > 2018-04-04 02:04:24,005 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
> com.cloud.network.router.VirtualNetworkApplianceManagerImpl
>     > 2018-04-04 02:04:24,005 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
>     > com.cloud.network.NetworkUsageManagerImpl$DirectNetworkStatsListener
>     > 2018-04-04 02:04:24,005 DEBUG [c.c.n.NetworkUsageManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Disconnected
> called
>     > on 1 with status Alert
>     > 2018-04-04 02:04:24,006 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.storage.download.DownloadListener
>     > 2018-04-04 02:04:24,006 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.capacity.StorageCapacityListener
>     > 2018-04-04 02:04:24,006 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.capacity.ComputeCapacityListener
>     > 2018-04-04 02:04:24,006 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
> com.cloud.agent.manager.AgentManagerImpl$BehindOnPingListener
>     > 2018-04-04 02:04:24,006 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener:
> com.cloud.agent.manager.AgentManagerImpl$SetHostParamsListener
>     > 2018-04-04 02:04:24,006 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Sending
> Disconnect
>     > to listener: com.cloud.storage.upload.UploadListener
>     > 2018-04-04 02:04:24,007 DEBUG [c.c.h.Status]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646)
> Transition:[Resource
>     > state = Enabled, Agent event = AgentDisconnected, Host id = 1, name =
>     > srvr3.cloud.priv]
>     > 2018-04-04 02:04:24,028 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Notifying
> other
>     > nodes of to disconnect
>     > 2018-04-04 02:04:24,034 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Failed to
> handle
>     > host connection: com.cloud.exception.ConnectionException: Incorrect
> Network
>     > setup on agent, Reinitialize agent after network names are setup,
> details :
>     > Can not find network: cloudbr1
>     > 2018-04-04 02:04:24,046 DEBUG [c.c.a.m.AgentManagerImpl]
>     > (AgentConnectTaskPool-1:ctx-0bf7b058) (logid:f7a4d646) Can not send
> command
>     > com.cloud.agent.api.ReadyCommand due to Host 1 is not up
>     > 2018-04-04 02:04:25,767 DEBUG [c.c.h.d.HostDaoImpl]
> (ClusteredAgentManager
>     > Timer:ctx-f7869282) (logid:9ff5ad9c) Resetting hosts suitable for
> reconnect
>     > 2018-04-04 02:04:25,770 DEBUG [c.c.h.d.HostDaoImpl]
> (ClusteredAgentManager
>     > Timer:ctx-f7869282) (logid:9ff5ad9c) Completed resetting hosts
> suitable for
>     > reconnect
>     > 2018-04-04 02:04:25,770 DEBUG [c.c.h.d.HostDaoImpl]
> (ClusteredAgentManager
>     > Timer:ctx-f7869282) (logid:9ff5ad9c) Acquiring hosts for clusters
> already
>     > owned by this management server
>     > 2018-04-04 02:04:25,771 DEBUG [c.c.h.d.HostDaoImpl]
> (ClusteredAgentManager
>     > Timer:ctx-f7869282) (logid:9ff5ad9c) Completed acquiring hosts for
> clusters
>     > already owned by this management server
>     > 2018-04-04 02:04:25,772 DEBUG [c.c.h.d.HostDaoImpl]
> (ClusteredAgentManager
>     > Timer:ctx-f7869282) (logid:9ff5ad9c) Acquiring hosts for clusters
> not owned
>     > by any management server
>     > 2018-04-04 02:04:25,773 DEBUG [c.c.h.d.HostDaoImpl]
> (ClusteredAgentManager
>     > Timer:ctx-f7869282) (logid:9ff5ad9c) Completed acquiring hosts for
> clusters
>     > not owned by any management server
>     > 2018-04-04 02:04:29,219 DEBUG [o.a.c.c.p.RootCACustomTrustManager]
>     > (pool-8-thread-1:null) (logid:) A client/agent attempting connection
> from
>     > address=172.16.20.13 has presented these certificate(s):
>     > Certificate [1] :
>     >
>     >
>     > Please help me understand what am I doing wrong here. I have tried
> several
>     > approaches but none seem to work (like creating the bridge through
>     > virt-manager GUI or typing the IP configuration of targeted guest
> network
>     > in the cloudbr1 file).
>     >
>     > Also, the method you suggested here where L2 network does not leave
> the
>     > host, that would basically mean we do not need to have a physical
> network
>     > in our LAN? like I currently have 192.168.20.0/24<
> http://192.168.20.0/24>
>     > and 172.16.20.0/16<http://172.16.20.0/16> in my physical network,
> but I
>     > could possibly create a isolated guest network of 10.0.2.0/24<
>     > http://10.0.2.0/24> ?
>     >
>     > I am also attaching the management-server logs if it would not be
> stripped
>     > by mailing system. The logs of agent had nothing interesting or
> related to
>     > network configuration errors, so not attaching them here.
>     >
>     > Thanks,
>     > Parth Patel
>     >
>     >
>     > dag.sonst...@shapeblue.com
>     > www.shapeblue.com
>     > 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
>     > @shapeblue
>     >
>     >
>     >
>     > On Thu, 29 Mar 2018 at 16:18 Parth Patel <parthpatel2...@gmail.com
> <mailto:
>     > parthpatel2...@gmail.com>> wrote:
>     > Thanks Dag. Appreciate it. Will try this out.
>     >
>     > On Thu, 29 Mar 2018 at 16:02 Dag Sonstebo
> <https://maps.google.com/?q=Mar+2018+at+16:02+Dag+Sonstebo+&entry=gmail&source=g>
> <dag.sonst...@shapeblue.com
>     > <mailto:dag.sonst...@shapeblue.com>> wrote:
>     > Hi Parth,
>     >
>     > If you want a KVM networking introduction take a look at my blog
> post from
>     > a couple of years back – this is still valid:
>     > http://www.shapeblue.com/networking-kvm-for-cloudstack/
>     >
>     > In short – you don’t set up VLAN tagging for isolated networks on
> the KVM
>     > host – you set up the bridge and then specify your VLAN range when
> you set
>     > up your zone in CloudStack. CloudStack then takes care of creating
> the
>     > isolated VLAN isolated networks on the host. So in short – you
> create your
>     > bridges, then use the bridge names in the advanced zone setup.
>     >
>     > Virtual bridge – yes this is similar to the cloud0 bridge, and yes
> you
>     > create the bridge without a physical interface.
>     >
>     > Regards,
>     > Dag Sonstebo
>     > Cloud Architect
>     > ShapeBlue
>     >
>     >
>     > dag.sonst...@shapeblue.com<mailto:dag.sonst...@shapeblue.com>
>     > www.shapeblue.com<http://www.shapeblue.com>
>     > 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
>     > @shapeblue
>     >
>     >
>     >
>     > On 29/03/2018, 11:14, "Parth Patel" <parthpatel2...@gmail.com
> <mailto:
>     > parthpatel2...@gmail.com>> wrote:
>     >
>     >     Hi Dag,
>     >
>     >     Thanks for helping me understand the requirement of advanced
>     > networking.
>     >     Sorry if I have missed something obvious or my question seems
> stupid,
>     > but I
>     >     am just starting to learn. Can you help me out on how to setup
> VLAN
>     >     "tagging" on one machine? I have tried several methods and
> tutorials I
>     >     could find on the internet for VLANs, but none mention "tagging".
>     >
>     >     Also, I do not fully understand private virtual bridge.....
> Means I
>     > create
>     >     an interface file for bridge but mention no physical interface
> device?
>     > Is
>     >     it similar to how cloud0 is configured for link local network of
> System
>     >     VMs? I could probably do that, but I don't know much about
> configuring
>     > VLAN
>     >     tagging. I would appreciate if you could give me some guidance or
>     > point me
>     >     where you think some good documentation is given for CentOS/RHEL
> hosts
>     > for
>     >     configuring bridges with VLAN tagging (I have tried but failed to
>     >     understand most of them). I am especially stuck at understanding
> this
>     >     "tagging" of VLANs.
>     >
>     >     Thanks,
>     >     Parth Patel
>     >
>     >     On Thu, 29 Mar 2018 at 15:17 Dag Sonstebo <
> dag.sonst...@shapeblue.com
>     > <mailto:dag.sonst...@shapeblue.com>>
>     >     wrote:
>     >
>     >     > Hi Parth,
>     >     >
>     >     > Yes and no.
>     >     >
>     >     > No – you cannot do advanced zones with *all three* KVM hosts
> and
>     > advanced
>     >     > networking without using VLANs (or another isolation
> mechanism) and
>     > still
>     >     > expect traffic to flow between VMs/VRs on different KVM hosts.
>     >     >
>     >     > Yes – you can probably do this *on a single KVM host* – but
> you will
>     > have
>     >     > to use VLAN tagging internally – this can however be done on a
>     > virtual
>     >     > bridge interface, i.e. the L2 traffic doesn’t ever leave that
> host.
>     >     >
>     >     > Without deep diving into this I think it would look like this:
>     >     >
>     >     > Physical eth0 -> cloudbr0 > handles management and public
>     >     > No nic -> private virtual bridge cloudbr1 > handles isolated
> guest
>     > traffic
>     >     > but allows for isolated VLANs internally on the host
>     >     >
>     >     > Regards,
>     >     > Dag Sonstebo
>     >     > Cloud Architect
>     >     > ShapeBlue
>     >     >
>     >     >
>     >     > dag.sonst...@shapeblue.com<mailto:dag.sonst...@shapeblue.com>
>     >     > www.shapeblue.com<http://www.shapeblue.com>
>     >     > 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
>     >     > @shapeblue
>     >     >
>     >     >
>     >     >
>     >     > On 29/03/2018, 09:25, "Parth Patel" <parthpatel2...@gmail.com
>     > <mailto:parthpatel2...@gmail.com>> wrote:
>     >     >
>     >     >     Hi Dag,
>     >     >
>     >     >     Thanks for the reply. I am trying to use Shapeblue CCS
>     > (Container as a
>     >     >     Service) with ACS, but for that Isolated networks are
> required
>     > which
>     >     > are
>     >     >     only available in Advanced Zone. Further, I want to explore
>     > Cloudstack
>     >     >     further and am also aiming to test and configure other
> advanced
>     >     > features
>     >     >     such as load balancing and auto scaling without netscaler
>     > device. For
>     >     > that
>     >     >     I badly need Advanced Zone networking (especially isolated
>     > networks
>     >     >     offerings). I just want to know if Advanced Zone can
> succesfully
>     >     > function
>     >     >     with two networks, one physcial NIC and no VLAN tagging.
>     >     >
>     >     >     Thanks,
>     >     >     Parth Patel
>     >     >
>     >     >     On Thu, 29 Mar 2018 at 13:48 Dag Sonstebo <
>     > dag.sonst...@shapeblue.com<mailto:dag.sonst...@shapeblue.com>>
>     >     >     wrote:
>     >     >
>     >     >     > Hi Parth,
>     >     >     >
>     >     >     > Not sure if I follow. Generally, your management network
> is
>     > untagged,
>     >     >     > whilst your public and isolated networks tagged. The
>     > underlying idea
>     >     > of
>     >     >     > advanced zones is you must have network isolation between
>     > multiple
>     >     > guest
>     >     >     > networks, otherwise you have no privacy/security. You
> can do
>     > this
>     >     > either at
>     >     >     > L2 with VLAN tagging, which is the simplest, or with L3
> using
>     >     > various SDN
>     >     >     > overlay network solutions (more complicated and comes at
>     > <
> https://maps.google.com/?q=ork+solutions+(more+complicated+and+comes+at+&entry=gmail&source=g
> >a
>     > cost).
>     >     >     >
>     >     >     > If you don’t want to tag anything you’re probably better
> off
>     > using
>     >     > basic
>     >     >     > networks, where I believe you could use a single flat
> subnet
>     > (happy
>     >     > to be
>     >     >     > proven wrong).
>     >     >     >
>     >     >     > Regards,
>     >     >     > Dag Sonstebo
>     >     >     > Cloud Architect
>     >     >     > ShapeBlue
>     >     >     >
>     >     >     >
>     >     >     > dag.sonst...@shapeblue.com<mailto:
> dag.sonst...@shapeblue.com>
>     >     >     > www.shapeblue.com<http://www.shapeblue.com>
>     >     >     > 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
>     >     >     > @shapeblue
>     >     >     >
>     >     >     >
>     >     >     >
>     >     >     > On 29/03/2018, 08:48, "Parth Patel" <
> parthpatel2...@gmail.com
>     > <mailto:parthpatel2...@gmail.com>>
>     >     > wrote:
>     >     >     >
>     >     >     >     Hi all,
>     >     >     >
>     >     >     >     After banging my head with different network
> configuration
>     >     >     > permutations, I
>     >     >     >     don't understand what is the issue with Network Guru
> here
>     > and
>     >     > why it
>     >     >     > can't
>     >     >     >     implement the isolated guest network. I just want to
> know
>     > if
>     >     > Advanced
>     >     >     > Zone
>     >     >     >     can be successfully setup or has someone configured
> an
>     > advanced
>     >     > zone
>     >     >     > using
>     >     >     >     untagged VLAN traffic?
>     >     >     >
>     >     >     >     I have the following configuration of components:
>     >     >     >     - I have 3 (16 GB Ram and 4 Cores) machines each
> with 1
>     > physical
>     >     > NIC.
>     >     >     >     - I have two networks: 192.168.20.0/24<
>     > http://192.168.20.0/24> (using this for isolated
>     >     > guest
>     >     >     >     network) and 172.16.20.0/16<http://172.16.20.0/16>
>     > (management server and NFS servers
>     >     >     > network)
>     >     >     >     - I am using KVM hypervisor and NFS for storage.
>     >     >     >     - Currently, the output of brctl show is (when the
>     > Cloudstack is
>     >     > not
>     >     >     >     running, other wise the interface are populated with
> three
>     > vnets
>     >     > for
>     >     >     > cloud0
>     >     >     >     and 4-5 vnets for cloudbr0):
>     >     >     >     bridge name     bridge id               STP enabled
>     >     >  interfaces
>     >     >     >     cloud0          8000.000000000000       no
>     >     >     >     cloudbr0                8000.3464a92a083a       no
>     >     > eno1
>     >     >     >     virbr0          8000.525400daae23       yes
>     >     >  virbr0-nic
>     >     >     >
>     >     >     >     My earlier doubt was if I can configure advanced
> zone with
>     > one
>     >     > physical
>     >     >     >     interface available in each host, but that was
> resolved
>     > when I
>     >     > read
>     >     >     > this
>     >     >     >     post of ShankerBalan:
>     >     >     >
>     >     >     >
>     >     >
>     >
> https://shankerbalan.net/blog/cloudstack-simple-advanced-network-example/
>     >     >     >
>     >     >     >     ACS throws InsufficientVirtualNetworkCapacity
> exception and
>     >     > lines like:
>     >     >     >     "NetworkGuru can't implement network [275||15]" are
>     > printed in
>     >     >     > management
>     >     >     >     server logs when I try to create a simple CentOS 5.5
> NoGUI
>     > KVM
>     >     > instance
>     >     >     >     after a complete and fresh install of ACS (even of
> CentOS).
>     >     >     >
>     >     >     >     My main doubt here is if I can successfully
> configure an
>     >     > advanced zone
>     >     >     > with
>     >     >     >     two networks but with untagged VLAN traffic ? I can't
>     > currently
>     >     >     > configure
>     >     >     >     the router or switches to allow tagged VLAN
> networking as
>     > I am
>     >     > doing
>     >     >     > this
>     >     >     >     project in my university. But, I have requested and
> gained
>     >     > access to
>     >     >     > the
>     >     >     >     mentioned two networks: 192.168.20.0/24<
>     > http://192.168.20.0/24> and 172.16.20.0/16<http://172.16.20.0/16>
> and
>     >     > both
>     >     >     >     networks are pingable and have internet access
> across all
>     > three
>     >     >     > machines.
>     >     >     >     Can anyone help me with this please?
>     >     >     >
>     >     >     >     Thanks,
>     >     >     >     Parth Patel
>     >     >     >
>     >     >     >
>     >     >     >
>     >     >
>     >     >
>     >     >
>     >
>     >
>
>
>

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