Open Stack

On 18 July 2014 03:29, Gastón Keller <gastonkeller at gmail.com> wrote:
> Hello, community.
>
> I'm working on a 3-node deployment (i.e., controller, network and
> compute) of OpenStack Icehouse in CentOS 6.4, following the official
> installation guide for CentOS found in openstack.org.
>
> These machines with which I'm working have only one NIC available.
> Since the guide indicates that the different nodes require one to
> three NICs, I've created aliases for the one NIC as follows (e.g.,
> network node):
>
> ** Network node **
>
> [root at ecco-vmhost-id19 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
> DEVICE=eth0
> ONBOOT=yes
> NM_CONTROLLED=no
> BOOTPROTO=dhcp
> DELAY=0
>
> [root at ecco-vmhost-id19 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0.1
> DEVICE=eth0.1
> ONBOOT=yes
> NM_CONTROLLED=no
> BOOTPROTO=none
> VLAN=yes
> IPADDR=10.18.23.21
> NETMASK=255.255.255.0
>
> [root at ecco-vmhost-id19 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0.2
> DEVICE=eth0.2
> TYPE=Ethernet
> ONBOOT=yes
> NM_CONTROLLED=no
> BOOTPROTO=none
> VLAN=yes
>
>
> Is there any reason why this setup wouldn't work?

Yes, once the br-ex integration bridge is configured, regular IPs will
stop working on that interface - the actual interface, not the alias,
AIUI.

So, this explains your symptom:

> I have installed and configured every service in their respective
> node, have created networks and subnets, a virtual router, and
> connected all the required ports. However, when I try to verify
> connectivity with a ping to the virtual router's external IP address,
> things fail.
>
> [root at ecco-vmhost-id19 ~]# ping -c 4 199.241.160.101
> PING 199.241.160.101 (199.241.160.101) 56(84) bytes of data.
> From 199.241.160.40 icmp_seq=2 Destination Host Unreachable
> From 199.241.160.40 icmp_seq=3 Destination Host Unreachable
> From 199.241.160.40 icmp_seq=4 Destination Host Unreachable
>
> --- 199.241.160.101 ping statistics ---
> 4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 12999ms
> pipe 3
>
>
> Any help would be deeply appreciated.

As Joe says, just use regular eth0, put br-ex on that, and put an IP
address on br-ex (or on an access port on it).

-Rob


-- 
Robert Collins <rbtcollins at hp.com>
Distinguished Technologist
HP Converged Cloud