Open Stack

> Can you also please provide sudo ovs-vsctl show?
sure.

midokura16:~/devstack# ovs-vsctl show
d699f1f2-792c-4eb9-8306-32a622316389
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
    Bridge br-int
        Port "tapee78cf13-65"
            tag: 4
            Interface "tapee78cf13-65"
                type: internal
        Port "tap0e74b599-a1"
            tag: 3
            Interface "tap0e74b599-a1"
        Port "tapc2df9bdf-da"
            tag: 1
            Interface "tapc2df9bdf-da"
                type: internal
        Port "tapda44c6f5-b4"
            tag: 3
            Interface "tapda44c6f5-b4"
                type: internal
        Port br-int
            Interface br-int
                type: internal
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "tap0fb10fc2-62"
            tag: 2
            Interface "tap0fb10fc2-62"
        Port "tap0118eb34-42"
            tag: 2
            Interface "tap0118eb34-42"
        Port "tapbd10a19b-a6"
            tag: 2
            Interface "tapbd10a19b-a6"
                type: internal
        Port "tap38bea316-b0"
            tag: 3
            Interface "tap38bea316-b0"
    ovs_version: "1.6.1"

Thanks!
Suzuki

On Tue, Sep 4, 2012 at 6:52 PM, Gary Kotton <gkotton at redhat.com> wrote:
> On 09/04/2012 12:48 PM, Takaaki Suzuki wrote:
>>
>> Hi Gary
>>
>> Thank you for your support.
>> I share with you information.
>
>
> Can you also please provide sudo ovs-vsctl show?
>
> Thanks
> Gary
>
>>
>>> 1. can you please do quantum port-list?
>>
>> quantum --os_token f095d7163a564456b60bf47b078537a7 --os_url
>> http://localhost:9696/ port-list
>>
>> - VM port
>> admin_state_up : True
>> device_id          : d6f9eb16-fb54-4c6c-8c1f-dd7859696910
>> device_owner    :
>> fixed_ips           :{"subnet_id":
>> "2c6e941e-cf21-40c9-8f1a-37db0e2e9a46", "ip_address": "192.168.30.3"}
>> id                     : 0118eb34-424f-460e-8e12-42ecffb2dad8
>> mac_address    : fa:16:3e:0d:e6:31
>> name                :
>> network_id        : 069f4cfc-3f97-4018-b08e-4a4868f3ca94
>> status               : ACTIVE
>> tenant_id           :cf67ba5e70e346b9a080fb349b5e1125
>>
>> - DHCP agent port
>> admin_state_up : True
>> device_id          :
>>
>> dhcp72aca792-f411-52a0-a641-defa1b398574-069f4cfc-3f97-4018-b08e-4a4868f3ca94
>> device_owner    : network:dhcp
>> fixed_ips           : {"subnet_id":
>> "bf07d0cd-7abb-4bf0-83a2-dfc1f3c21f8e", "ip_address": "192.168.10.2"},
>> {"subnet_id": "2c6e941e-cf21-40c9-8f1a-37db0e2e9a46", "ip_address":
>> "192.168.30.2"}
>> id                     : bd10a19b-a679-4b65-b36b-7beffcdae1ba
>> mac_address    : fa:16:3e:6c:f0:b5
>> name                : DHCP Agent
>> network_id        : 069f4cfc-3f97-4018-b08e-4a4868f3ca94
>> status               : ACTIVE
>> tenant_id           :cf67ba5e70e346b9a080fb349b5e1125
>>
>>
>>> 2. Is the DHCP agent running (q-dhcp in stackrc)?
>>
>> Yes, DHCP agent running. I added "enable_service q-dhcp".
>>
>>> 3. How did you launch the VM's? Did you use nova boot --nic
>>> net-id=quantum
>>> network ID?
>>
>> I use Horizon for Quantum V2 (https://github.com/amotoki/horizon).
>>
>>> 4. Can you please check that the host files has the MAC address and IP
>>> address of your VM - this is under /opt/stack/data/dhcp/<network id>/..
>>
>> midokura16:/opt/stack/data/dhcp/069f4cfc-3f97-4018-b08e-4a4868f3ca94# cat
>> host
>> fa:16:3e:0d:e6:31,192-168-30-3.openstacklocal,192.168.30.3
>> fa:16:3e:6c:f0:b5,192-168-10-2.openstacklocal,192.168.10.2
>> fa:16:3e:6c:f0:b5,192-168-30-2.openstacklocal,192.168.30.2
>>
>> - dnsmasq syslog when launch VM.
>> dnsmasq-dhcp[12592]: DHCPDISCOVER(tapbd10a19b-a6) fa:16:3e:0d:e6:31 no
>> address available
>> dnsmasq-dhcp[12592]: last message repeated 2 times
>> dnsmasq-dhcp[12592]: DHCPDISCOVER(tapbd10a19b-a6) fa:16:3e:15:62:6a no
>> address available
>> dnsmasq-dhcp[12592]: last message repeated 2 times
>>
>> - sudo ip netns exec 069f4cfc-3f97-4018-b08e-4a4868f3ca94 ip link
>> 104: tapbd10a19b-a6:<BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP>  mtu
>> 1500 qdisc noqueue state UNKNOWN
>>      link/ether fa:16:3e:6c:f0:b5 brd ff:ff:ff:ff:ff:ff
>>
>> - sudo ip netns exec 069f4cfc-3f97-4018-b08e-4a4868f3ca94 ip route
>> 192.168.10.0/24 dev tapbd10a19b-a6  proto kernel  scope link  src
>> 192.168.10.2
>> 192.168.30.0/24 dev tapbd10a19b-a6  proto kernel  scope link  src
>> 192.168.30.2
>>
>> - quantum-dhcp agent spawn dnsmasq for test04 network
>> dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces
>> --interface=tapbd10a19b-a6 --except-interface=lo
>> --domain=openstacklocal
>> --pid-file=/opt/stack/data/dhcp/069f4cfc-3f97-4018-b08e-4a4868f3ca94/pid
>>
>> --dhcp-hostsfile=/opt/stack/data/dhcp/069f4cfc-3f97-4018-b08e-4a4868f3ca94/host
>>
>> --dhcp-optsfile=/opt/stack/data/dhcp/069f4cfc-3f97-4018-b08e-4a4868f3ca94/opts
>> --leasefile-ro --dhcp-range=set:tag0,192.168.10.0,static,120s
>>
>> Hope that helped.
>> Thanks!
>>
>> Suzuki
>>
>> On Tue, Sep 4, 2012 at 6:13 PM, Gary Kotton<gkotton at redhat.com>  wrote:
>>>
>>> On 09/04/2012 12:03 PM, Takaaki Suzuki wrote:
>>>>
>>>> Hi
>>>>
>>>> Currently, I see that DHCP instance is created per network, at least
>>>> from looking at the Dnsmasq implementation.
>>>>
>>>> I'm curious to know how a DHCP instance can provide services to a VM
>>>> attached to a port on a network that has multiple subnets.
>>>>
>>>> It doesn't seem possible to me that a VM can get two IP addresses on
>>>> an interface from this DHCP server. Is this feature supported in
>>>> Quantum?
>>>>
>>>> I ran a quick test using Devstack + QuantumV2 + OVS plugin.  I created
>>>> one network called "test04", and two subnets for tor the network,
>>>> 192.168.10.0/24 and 192.168.30.0/24.
>>>
>>> When a Quantum port is allocated an IP address is selected from one of
>>> the
>>> subnets configured on the network (unless the user has requested more
>>> than
>>> one IP address). The DHCP agent will learn this IP address and update the
>>> hosts file.
>>>
>>> Can you please provide the following information:
>>> 1. can you please do quantum port-list?
>>> 2. Is the DHCP agent running (q-dhcp in stackrc)?
>>> 3. How did you launch the VM's? Did you use nova boot --nic
>>> net-id=quantum
>>> network ID?
>>> 4. Can you please check that the host files has the MAC address and IP
>>> address of your VM - this is under /opt/stack/data/dhcp/<network id>/..
>>>
>>> Thanks
>>> Gary
>>>>
>>>> With Dnsmasq running as the DHCP server, I launched a VM, and as
>>>> suspected, it did not receive any IP address.  I checked the Dnsmasq
>>>> log and it looked like it did receive DHCPDISCOVER message but it did
>>>> not offer anything back.
>>>>
>>>> I would love to know there is actually a way to get this to work, or
>>>> if I'm missing some critical steps here.
>>>>
>>>> Thanks!
>>>> Suzuki
>>>>
>>>> _______________________________________________
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>>>
>>>
>>>
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>
>