Ask Your Question
0

Router ports are down

asked 2014-02-13 13:37:49 -0500

le-l-wang gravatar image

After checking previous questions/answers, I still can not get my router working properly. I have dedicated controller, compute and networking nodes running on Ubuntu12.04 with Havana. The problem is on Neutron node, when I create a router and attach a public and private network to it. I am using GRE to connect nodes.

The findings are 1. The tap and qr ports connected to br-int are always down.

ovs-ofctl show br-int

OFPT_FEATURES_REPLY (xid=0x2): dpid:000062ac839d3848 n_tables:254, 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 2(patch-tun): addr:0e:22:43:31:0c:b9 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max 3(tapc6385b42-b8): addr:e5:01:00:00:00:00 config: PORT_DOWN state: LINK_DOWN speed: 0 Mbps now, 0 Mbps max 4(qr-56fa966b-cf): addr:e3:01:00:00:00:00 config: PORT_DOWN state: LINK_DOWN speed: 0 Mbps now, 0 Mbps max LOCAL(br-int): addr:62:ac:83:9d:38:48 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0

  1. It is similar to qg interface

    ovs-ofctl show br-ex

OFPT_FEATURES_REPLY (xid=0x2): dpid:0000080027d90a17 n_tables:254, 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(qg-d482a3ce-b0): addr:e3:01:00:00:00:00 config: PORT_DOWN state: LINK_DOWN speed: 0 Mbps now, 0 Mbps max 2(eth2): addr:08:00:27:d9:0a:17 config: 0 state: 0 current: 1GB-FD COPPER AUTO_NEG advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO_NEG supported: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO_NEG speed: 1000 Mbps now, 1000 Mbps max LOCAL(br-ex): addr:08:00:27:d9:0a:17 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0

  1. However, the GRE tunnel between Networking and Compute nodes is up and running.

    ovs-ofctl show br-tun

OFPT_FEATURES_REPLY (xid=0x2): dpid:00001a4b859fd545 n_tables:254, 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(patch-int): addr:32:85:96:3f:ea:e7 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max 2(gre-1): addr:ee:4e:ff:d0:dd:9d config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max LOCAL(br-tun): addr:1a:4b:85:9f:d5:45 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0

  1. More errors found from /var/log/neutron*

    tail /var/log/neutron/dhcp-agent.log

2014-02-13 14:32:41.082 7622 ERROR neutron.common.legacy [-] Skipping unknown group key: firewall_driver

tail /var/log/neutron/l3-agent.log

2014-02-13 14:32:41.414 7630 ERROR neutron.common.legacy [-] Skipping unknown group key: firewall_driver 2014-02-13 14:32:47.175 7630 WARNING neutron.openstack.common.loopingcall [-] task run outlasted interval by 1.702282 sec

tail /var/log/neutron/dhcp-agent.log

2014-02-13 14:32 ... (more)

edit retag flag offensive close merge delete

1 answer

Sort by ยป oldest newest most voted
0

answered 2014-02-14 10:55:40 -0500

le-l-wang gravatar image

The problem is caused by Libvirt VIF Driver. After uninstalling it, the instance can get IP address and ping to the outside. However, "ovs-ofctl show br-int" on networking node still shows tap and qr interfaces are down, even though traffic can go though them.Thanks for all the help so far.

edit flag offensive delete link more

Comments

@le-l-wang how do you uninstall the Libvirt VIF Driver? can you please provide. thanks.

tahder gravatar imagetahder ( 2014-05-13 21:41:27 -0500 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Get to know Ask OpenStack

Resources for moderators

Question Tools

1 follower

Stats

Asked: 2014-02-13 13:37:49 -0500

Seen: 119 times

Last updated: Feb 14 '14