[Rdo-list] [Grizzly] Network problem with Quantum + Openvswitch + Vlan
Zhang, Kimi (NSN - CN/Cheng Du)
kimi.zhang at nsn.com
Sun Apr 28 08:17:00 UTC 2013
Hi， Gary
I tried capture packet while keeping VM to restart it’s network.
I can see dhcp request broadcast packet on tap, qbr, qvb and qvo interfaces.
Failed to see packet on int-br-p3p1 on bridge br-int.
Not sure if it has something to do with openflow setting? I attach some ovs-ofctl outputs
I have not seen “veth” port anywhere…
---Record---
[root at computer-2 ~]# brctl show
bridge name bridge id STP enabled interfaces
qbr39242f22-ec 8000.c6f95e6a859a no qvb39242f22-ec
tap39242f22-ec
virbr0 8000.525400c47f62 yes virbr0-nic
[root at computer-2 ~]# ovs-vsctl show
5660d1b5-1f26-46fc-bcb7-0ccfd06fe57b
Bridge br-int
Port br-int
Interface br-int
type: internal
Port "int-br-p3p1"
Interface "int-br-p3p1"
Port "qvo39242f22-ec"
tag: 1
Interface "qvo39242f22-ec"
Bridge "br-p3p1"
Port "phy-br-p3p1"
Interface "phy-br-p3p1"
Port "p3p1"
Interface "p3p1"
Port "br-p3p1"
Interface "br-p3p1"
type: internal
ovs_version: "1.9.0"
[root at computer-2 ~]# tcpdump -i tap39242f22-ec port 67
tcpdump: WARNING: tap39242f22-ec: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tap39242f22-ec, link-type EN10MB (Ethernet), capture size 65535 bytes
16:12:21.455212 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:15:82:82 (oui Unknown), length 300
16:12:21.455289 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:15:82:82 (oui Unknown), length 300
^C
2 packets captured
2 packets received by filter
0 packets dropped by kernel
[root at computer-2 ~]# tcpdump -i qbr39242f22-ec port 67
tcpdump: WARNING: qbr39242f22-ec: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on qbr39242f22-ec, link-type EN10MB (Ethernet), capture size 65535 bytes
16:12:34.456228 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:15:82:82 (oui Unknown), length 300
^C
1 packets captured
1 packets received by filter
0 packets dropped by kernel
[root at computer-2 ~]# tcpdump -i qvb39242f22-ec port 67
tcpdump: WARNING: qvb39242f22-ec: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on qvb39242f22-ec, link-type EN10MB (Ethernet), capture size 65535 bytes
16:12:43.460251 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:15:82:82 (oui Unknown), length 300
^C
1 packets captured
1 packets received by filter
0 packets dropped by kernel
[root at computer-2 ~]# tcpdump -i qvo39242f22-ec port 67
tcpdump: WARNING: qvo39242f22-ec: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on qvo39242f22-ec, link-type EN10MB (Ethernet), capture size 65535 bytes
16:13:03.712272 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:15:82:82 (oui Unknown), length 300
16:13:08.455932 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:15:82:82 (oui Unknown), length 300
^C
2 packets captured
2 packets received by filter
0 packets dropped by kernel
[root at computer-2 ~]# tcpdump -i int-br-p3p1 port 67
tcpdump: WARNING: int-br-p3p1: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on int-br-p3p1, link-type EN10MB (Ethernet), capture size 65535 bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
---output of ovs-ofctl---
[root at computer-2 ~]# ovs-ofctl show br-int
OFPT_FEATURES_REPLY (xid=0x1): dpid:000086401820f142
n_tables:255, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: OUTPUT SET_VLAN_VID SET_VLAN_PCP STRIP_VLAN SET_DL_SRC SET_DL_DST SET_NW_SRC SET_NW_DST SET_NW_TOS SET_TP_SRC SET_TP_DST ENQUEUE
1(int-br-p3p1): addr:de:42:e4:9d:b7:1d
config: 0
state: 0
current: 10GB-FD COPPER
speed: 10000 Mbps now, 100 Mbps max
4(qvo39242f22-ec): addr:ea:5d:b8:7e:4a:78
config: 0
state: 0
current: 10GB-FD COPPER
speed: 10000 Mbps now, 100 Mbps max
LOCAL(br-int): addr:86:40:18:20:f1:42
config: PORT_DOWN
state: LINK_DOWN
speed: 100 Mbps now, 100 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x3): frags=normal miss_send_len=0
[root at computer-2 ~]#
[root at computer-2 ~]# ovs-ofctl show br-p3p1
OFPT_FEATURES_REPLY (xid=0x1): dpid:0000a0369f15d424
n_tables:255, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: OUTPUT SET_VLAN_VID SET_VLAN_PCP STRIP_VLAN SET_DL_SRC SET_DL_DST SET_NW_SRC SET_NW_DST SET_NW_TOS SET_TP_SRC SET_TP_DST ENQUEUE
1(p3p1): addr:a0:36:9f:15:d4:24
config: 0
state: 0
current: 10GB-FD
advertised: 10GB-FD FIBER
supported: 10GB-FD FIBER
speed: 10000 Mbps now, 10000 Mbps max
2(phy-br-p3p1): addr:be:3c:f9:8d:d9:d0
config: 0
state: 0
current: 10GB-FD COPPER
speed: 10000 Mbps now, 100 Mbps max
LOCAL(br-p3p1): addr:a0:36:9f:15:d4:24
config: PORT_DOWN
state: LINK_DOWN
speed: 100 Mbps now, 100 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x3): frags=normal miss_send_len=0
[root at computer-2 ~]# ovs-ofctl dump-flows br-int
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=4125.444s, table=0, n_packets=1707, n_bytes=90606, idle_age=12, priority=1 actions=NORMAL
cookie=0x0, duration=4123.006s, table=0, n_packets=143, n_bytes=8688, idle_age=20, priority=2,in_port=1 actions=drop
cookie=0x0, duration=3349.566s, table=0, n_packets=0, n_bytes=0, idle_age=3349, priority=3,in_port=1,dl_vlan=1001 actions=mod_vlan_vid:1,NORMAL
[root at computer-2 ~]# ovs-ofctl dump-flows br-p3p1
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=4129.629s, table=0, n_packets=2175, n_bytes=138652, idle_age=0, priority=1 actions=NORMAL
cookie=0x0, duration=4127.415s, table=0, n_packets=16, n_bytes=1224, idle_age=1045, priority=2,in_port=2 actions=drop
cookie=0x0, duration=3354.578s, table=0, n_packets=1697, n_bytes=96638, idle_age=17, priority=4,in_port=2,dl_vlan=1 actions=mod_vlan_vid:1001,NORMAL
Regards,
Kimi Zhang
MP: +86 186 0800 8182
Call me(NCS): sip:+86018608008182
From: rdo-list-bounces at redhat.com [mailto:rdo-list-bounces at redhat.com] On Behalf Of ext Zhang, Kimi (NSN - CN/Cheng Du)
Sent: Sunday, April 28, 2013 3:40 PM
To: gkotton at redhat.com; rdo-list at redhat.com
Subject: Re: [Rdo-list] [Grizzly] Network problem with Quantum + Openvswitch + Vlan
Very nice pic, I am going to try to capture packet on each port.
I did not configure to use quantum to manage firewall , just leave it to nova-compute, will try your configs later.
Regards,
Kimi Zhang
MP: +86 186 0800 8182
Call me(NCS): sip:+86018608008182
From: rdo-list-bounces at redhat.com<mailto:rdo-list-bounces at redhat.com> [mailto:rdo-list-bounces at redhat.com] On Behalf Of ext Gary Kotton
Sent: Sunday, April 28, 2013 3:33 PM
To: rdo-list at redhat.com<mailto:rdo-list at redhat.com>
Subject: Re: [Rdo-list] [Grizzly] Network problem with Quantum + Openvswitch + Vlan
Hi,
Can you also please check that firewall_driver = quantum.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver is configured in plugin.ini file.And security_group_api = quantum is set in nova.conf
Thanks
Gary
On 04/28/2013 10:21 AM, Gary Kotton wrote:
On 04/28/2013 10:16 AM, Zhang, Kimi (NSN - CN/Cheng Du) wrote:
Hi, Gary
I tried to disable iptables on both network and compute nodes, still does not work out :(
Can you please look at https://docs.google.com/drawings/d/1wax2Nlk-LRJeOXwF_6X9L05cAf9HKl2FI_0B51rG4XE/edit?usp=sharing
When using the OVS there are a number of devices. Would it be possible that you try and capture on each device so that we can try and see where the packet is discarded.
I will have a setup ready in about an hour.
From quantum openvswitch agent logs, following messages keeps coming out repeatly every 2-3 seconds, not sure if they matter or not?
The messages below are OK - this is how the OVS agent works. It polls the OVS every interval to check if new ports are created.
2013-04-28 15:15:39 DEBUG [quantum.openstack.common.rpc.amqp] Making synchronous call on q-plugin ...
2013-04-28 15:15:39 DEBUG [quantum.openstack.common.rpc.amqp] MSG_ID is 92f4e83cf92c46f1b9304c879f9b7a41
2013-04-28 15:15:39 DEBUG [quantum.openstack.common.rpc.amqp] UNIQUE_ID is b27f9545ca9d4745961ac574abdc103b.
2013-04-28 15:15:40 DEBUG [quantum.agent.linux.utils] Running command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'list-ports', 'br-int']
2013-04-28 15:15:40 DEBUG [quantum.agent.linux.utils]
Command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'list-ports', 'br-int']
Exit code: 0
Stdout: 'int-br-p3p1\n'
Stderr: ''
2013-04-28 15:15:40 DEBUG [quantum.agent.linux.utils] Running command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'get', 'Interface', 'int-br-p3p1', 'external_ids']
2013-04-28 15:15:41 DEBUG [quantum.agent.linux.utils]
Command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'get', 'Interface', 'int-br-p3p1', 'external_ids']
Exit code: 0
Stdout: '{}\n'
Stderr: ''
2013-04-28 15:15:42 DEBUG [quantum.agent.linux.utils] Running command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'list-ports', 'br-int']
2013-04-28 15:15:42 DEBUG [quantum.agent.linux.utils] Running command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'list-ports', 'br-int']
2013-04-28 15:15:42 DEBUG [quantum.agent.linux.utils]
Command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'list-ports', 'br-int']
Exit code: 0
Stdout: 'int-br-p3p1\n'
Stderr: ''
2013-04-28 15:15:42 DEBUG [quantum.agent.linux.utils] Running command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'get', 'Interface', 'int-br-p3p1', 'external_ids']
2013-04-28 15:15:42 DEBUG [quantum.agent.linux.utils]
Command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'list-ports', 'br-int']
Exit code: 0
Stdout: 'int-br-p3p1\n'
Stderr: ''
2013-04-28 15:15:42 DEBUG [quantum.agent.linux.utils] Running command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'get', 'Interface', 'int-br-p3p1', 'external_ids']
2013-04-28 15:15:43 DEBUG [quantum.agent.linux.utils]
Command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'get', 'Interface', 'int-br-p3p1', 'external_ids']
Exit code: 0
Stdout: '{}\n'
Stderr: ''
2013-04-28 15:15:43 DEBUG [quantum.agent.linux.utils]
Command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'get', 'Interface', 'int-br-p3p1', 'external_ids']
Exit code: 0
Stdout: '{}\n'
Stderr: ''
Regards,
Kimi Zhang
MP: +86 186 0800 8182
Call me(NCS): sip:+86018608008182
From: ext Gary Kotton [mailto:gkotton at redhat.com]
Sent: Sunday, April 28, 2013 3:08 PM
To: Zhang, Kimi (NSN - CN/Cheng Du)
Cc: rdo-list at redhat.com<mailto:rdo-list at redhat.com>
Subject: Re: [Rdo-list] [Grizzly] Network problem with Quantum + Openvswitch + Vlan
On 04/28/2013 10:04 AM, Zhang, Kimi (NSN - CN/Cheng Du) wrote:
I tried that too, no lucky.
From tcpdump ,it seems br-int does not forward any packet to interfaces connect to br-p3p1, which connects to physical network…
There could be a number of issues here:
1. The iptables are dropping the traffic (I am in the process of getting a setup up and running)
2. The network connectivity
In order to ensure that it is not the first one can you try and see which iptables rules are matched or disable the iptables?
Regards,
Kimi Zhang
MP: +86 186 0800 8182
Call me(NCS): sip:+86018608008182
From: ext Gary Kotton [mailto:gkotton at redhat.com]
Sent: Sunday, April 28, 2013 3:01 PM
To: Zhang, Kimi (NSN - CN/Cheng Du)
Cc: rdo-list at redhat.com<mailto:rdo-list at redhat.com>
Subject: Re: [Rdo-list] [Grizzly] Network problem with Quantum + Openvswitch + Vlan
On 04/28/2013 09:54 AM, Zhang, Kimi (NSN - CN/Cheng Du) wrote:
Hi, Gary
Yes, I’m aware of that packstack does not support quantum yet. The whole setup was installed manually.
I did run quantum-server-setup and quantum-host-setup, I tried linuxbridge plugin too, it has no issue for VM to get IP address, but openvswitch has issues on this…
ok.
if you configure and IP address manually on the VM are you able to ping the port of the DHCP agent?
you can get the IP from quantum port-list
Regards,
Kimi
From: rdo-list-bounces at redhat.com<mailto:rdo-list-bounces at redhat.com> [mailto:rdo-list-bounces at redhat.com] On Behalf Of ext Gary Kotton
Sent: Sunday, April 28, 2013 2:50 PM
To: rdo-list at redhat.com<mailto:rdo-list at redhat.com>
Subject: Re: [Rdo-list] [Grizzly] Network problem with Quantum + Openvswitch + Vlan
Hi Kimi,
Thanks for the mail. Please see the inline comments below. Please note that at the moment we do not have packstack support for Quantum so there is a little manual plumbing that needs to be done (not sure if you have done this already).
On the host where the quantum service is running you need to run quantum-server-setup and on the compute nodes you need to run quantum-host-setup (please note that the relevant keystone credentials need to be set too).
Thanks
Gary
On 04/28/2013 09:38 AM, Zhang, Kimi (NSN - CN/Cheng Du) wrote:
converted from rtf
When I start VM instance, the VM can’t get IP address. Could someone help me on this ?
I will try
3 nodes Setup with RHEL 6.4 OS + rdo grizzly repository.
・ Controller node:
Services: Keystone+Glance+Cinder+Quantum server + Nova services
Network: bond0(10.68.125.11 for O&M)
・ Network node:
Services: quantum-openvswitch-agent, quantum-l3-agent, quantum-dhcp-agent, quantum-metadata-agent
Network: bond0(10.68.125.15 for O&M) , p3p1 for VM internal network, p3p2 for external network
Please note that RHEL currently does not support namespaces so there are a number of limitations. We are addressing this at the moment. If namespaces are not used then it is suggested that one does not run the DHCP agent and the L3 agent on the same host. The reason for this is that there is no network isolation.
・ Compute node:
Services: nove-compute and quantum-openvswitch-agent
Network: bond0(10.68.125.16 for O&M), p3p1 for VM internal network
・ Switch setup tagging for vlan 1000-2999 for p3p1 ports(VM network) of network and compute nodes.
1. Quantum.conf:
[DEFAULT]
debug = True
verbose = True
lock_path = $state_path/lock
bind_host = 0.0.0.0
bind_port = 9696
core_plugin = quantum.plugins.openvswitch.ovs_quantum_plugin.OVSQuantumPluginV2
api_paste_config = api-paste.ini
rpc_backend = quantum.openstack.common.rpc.impl_kombu
Are you using rabbit or qpid?
control_exchange = quantum
rabbit_host = 10.68.125.11
notification_driver = quantum.openstack.common.notifier.rpc_notifier
default_notification_level = INFO
notification_topics = notifications
[QUOTAS]
[DEFAULT_SERVICETYPE]
[AGENT]
polling_interval = 2
root_helper = sudo quantum-rootwrap /etc/quantum/rootwrap.conf
[keystone_authtoken]
auth_host = 10.68.125.11
auth_port = 35357
auth_protocol = http
signing_dir = /var/lib/quantum/keystone-signing
admin_tenant_name = service
admin_user = quantum
admin_password = password
2. ovs_quantum_plugin.ini
[DATABASE]
sql_connection = mysql://quantum:quantum@10.68.125.11:3306/ovs_quantum<mailto:mysql://quantum:quantum@10.68.125.11:3306/ovs_quantum>
reconnect_interval = 2
[OVS]
tenant_network_type = vlan
network_vlan_ranges = physnet1:1000:2999
bridge_mappings = physnet1:br-p3p1
[AGENT]
polling_interval = 2
[SECURITYGROUP]
3. nova.conf
[DEFAULT]
verbose=true
logdir = /var/log/nova
state_path = /var/lib/nova
lock_path = /var/lib/nova/tmp
volumes_dir = /etc/nova/volumes
dhcpbridge = /usr/bin/nova-dhcpbridge
dhcpbridge_flagfile = /etc/nova/nova.conf
force_dhcp_release = True
injected_network_template = /usr/share/nova/interfaces.template
libvirt_nonblocking = True
libvirt_inject_partition = -1
network_manager = nova.network.manager.FlatDHCPManager
iscsi_helper = tgtadm
compute_driver = libvirt.LibvirtDriver
libvirt_type=kvm
libvirt_ovs_bridge=br-int
firewall_driver = nova.virt.libvirt.firewall.IptablesFirewallDriver
manager=nova.conductor.manager.ConductorManager
rpc_backend = nova.openstack.common.rpc.impl_kombu
rabbit_host = 10.68.125.11
rootwrap_config = /etc/nova/rootwrap.conf
use_deprecated_auth=false
auth_strategy=keystone
glance_api_servers=10.68.125.11:9292
image_service=nova.image.glance.GlanceImageService
novnc_enabled=true
novncproxy_base_url=http://10.68.125.11:6080/vnc_auto.html
novncproxy_port=6080
vncserver_proxyclient_address=10.68.125.16
vncserver_listen=0.0.0.0
libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver
libvirt_use_virtio_for_bridges=True
network_api_class=nova.network.quantumv2.api.API
quantum_url=http://10.68.125.11:9696
quantum_auth_strategy=keystone
quantum_admin_tenant_name=service
quantum_admin_username=quantum
quantum_admin_password=password
quantum_admin_auth_url=http://10.68.125.11:35357/v2.0
linuxnet_interface_driver=nova.network.linux_net.LinuxOVSInterfaceDriver
libvirt_vif_type=ethernet
service_quantum_metadata_proxy = True
quantum_metadata_proxy_shared_secret = helloOpenStack
metadata_host = 10.68.125.11
metadata_listen = 0.0.0.0
metadata_listen_port = 8775
[keystone_authtoken]
admin_tenant_name = service
admin_user = nova
admin_password = password
auth_host = 10.68.125.11
auth_port = 35357
auth_protocol = http
signing_dir = /tmp/keystone-signing-nova
4. ovs-vsctl show on network node:
aeeb6cf7-271b-405a-aa17-1b95bcd9e301
Bridge "br-p3p1"
Port "p3p1"
Interface "p3p1"
Port "phy-br-p3p1"
Interface "phy-br-p3p1"
Port "br-p3p1"
Interface "br-p3p1"
type: internal
Bridge br-ex
Port br-ex
Interface br-ex
type: internal
Port "qg-a83c0abd-f4"
Interface "qg-a83c0abd-f4"
type: internal
Port "p3p2"
Interface "p3p2"
Bridge br-int
Port br-int
Interface br-int
type: internal
Port "int-br-p3p1"
Interface "int-br-p3p1"
Port "tap1f386a2a-12"
tag: 1
Interface "tap1f386a2a-12"
type: internal
ovs_version: "1.9.0"
5. ovs-vsctl show on compute node:
8d6c2637-ff69-4a2d-a7db-e4f181273bc0
Bridge "br-p3p1"
Port "br-p3p1"
Interface "br-p3p1"
type: internal
Port "phy-br-p3p1"
Interface "phy-br-p3p1"
Port "p3p1"
Interface "p3p1"
Bridge br-int
Port "qvo56a4572c-dc"
tag: 2
Interface "qvo56a4572c-dc"
Port "int-br-p3p1"
Interface "int-br-p3p1"
Port br-int
Interface br-int
type: internal
ovs_version: "1.9.0"
On compute node, I can see dhcp request packet from tcpdump on qvo56a4572c-dc, but it seems the packet is not forwarded out since I can’t see packet from int-br-p3p1 on br-int or any port from br-p3p1.
Any chance to get the DHCP and the L3 agent configuration files? Please check that use_namespaces = False in both of these files.
Are there any log errors?
Thank you!
Regards,
Kimi
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