do you see sent and received packets on the vlan? I would suspect that you actually don't have the vlans trunked on the ports so the packets aren't making it across the switch.
Vish On May 31, 2012, at 9:53 AM, Vijay wrote: > Thanks for the reply. Network controller assigns a private ip address to the > vm launched on compute node. However, I still cannot ping this ip address > from the network(controller node). I am running nova-network service only on > the controller. > > Thanks, > -vj > From: Narayan Desai <[email protected]> > To: Vijay <[email protected]> > Cc: "[email protected]" <[email protected]> > Sent: Wednesday, May 30, 2012 5:28 PM > Subject: Re: [Openstack] dhcp is not leasing an ip address in vlan mode > > This sounds like it might be working properly. In VLAN mode, all > instances are connected to one of the project vlans. The .1 address > (gateway, dhcp, etc) exists on an interface on the nova-network node > (or one of them, in the case that you are running multiple. This > interface is bridged to a tagged interface on the appropriate vlan > tag. On the nova-compute nodes, a vnet interface for the instance is > bridged to the vlan tagged interface. On the compute node, there isn't > an IP interface on this network, so the private IP for instances isn't > reachable, even if the instance is running on the same node. > > The canonical test for correct network function is if an instance is > reachable via ping from the nova-network server that is currently > serving the instance's project network. > hth > -nld > > On Wed, May 30, 2012 at 5:42 PM, Vijay <[email protected]> wrote: > > Hello, > > I am trying install Essex in VLAN mode on multiple compute nodes. > > > > I am able to lauch instances on controller (which also runs nova-compute) > > and ping/ssh those instances. > > I am able to launch instances on compute only node. However, I cannot ping > > the VM launched on compute only node. > > When i did the euca-get-console-output on that instance, I see that it is > > not getting an IP leased from DHCP .. Because of that it is not able to > > reach metadata server. > > Any help is appreciated. > > > > Console output is > > udhcpc (v1.17.2) started > > Sending discover... > > Sending discover... > > Sending discover... > > No lease, forking to background > > starting DHCP forEthernet interface eth0 [ OK ] > > cloud-setup: checking > > http://169.254.169.254/2009-04-04/meta-data/instance-id > > wget: can't connect to remote host (169.254.169.254): Network is unreachable > > cloud-setup: failed 1/30: up 17.71. request failed > > nova.conf: > > --dhcpbridge_flagfile=/etc/nova/nova.conf > > --dhcpbridge=/usr/local/bin/nova-dhcpbridge > > --logdir=/var/log/nova > > --state_path=/var/lib/nova > > --lock_path=/var/lock/nova > > --force_dhcp_release=True > > --use_deprecated_auth > > --iscsi_helper=tgtadm > > --verbose > > --vncserver_listen=0.0.0.0 > > --sql_connection=mysql://novadbadmin:[email protected]/nova > > --daemonize > > --s3_host=192.168.198.85 > > --rabbit_host=192.168.198.85 > > --cc_host=192.168.198.85 > > --ospi_host=192.168.198.85 > > --ec2_host=192.168.198.85 > > --ec2_url=http://192.168.198.85:8773/services/Cloud > > --nova_url=http://192.168.198.85:8774/v1.1/ > > > > # VLAN mode > > --flat_interface=eth1 > > --flat_injected=False > > --flat_network_bridge=br100 > > --flat_network_dhcp_start=192.168.4.2 > > > > --network_manager=nova.network.manager.VlanManager > > --vlan_interface=eth1 > > --public_interface=vlan100 > > --allow_same_net_traffic=True > > --fixed_range=192.168.4.0/24 > > --network_size=256 > > --FAKE_subdomain=ec2 > > --routing_source_ip=192.168.198.85 > > --glance_api_servers=192.168.198.85:9292 > > --image_service=nova.image.glance.GlanceImageService > > --iscsi_ip_prefix=192.168. > > --connection_type=libvirt > > --libvirt_type=qemu > > > > # Keystone > > --auth_strategy=keystone > > --api_paste_config=/etc/nova/api-paste.ini > > --keystone_ec2_url=http://192.168.198.85:5000/v2.0/ec2tokens > > > > > > > > > > Thanks, > > -vj > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~openstack > > Post to : [email protected] > > Unsubscribe : https://launchpad.net/~openstack > > More help : https://help.launchpad.net/ListHelp > > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp
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