Yes. As i mentioned in one of my previous trail mail, please do packet capture and check whether neutron q-dhcp is offering IP address to VM instances. If you share those details dhcp team can help to identify the issue.
Thanks & Regards, Karthikeyan. On Thu, Jul 5, 2018 at 10:38 PM, PRAKASH, OM <[email protected]> wrote: > So Karthikeyan, > > > > You are saying this is not issue . We have to look some thing else > > > > ubuntu@opnfv:~$ sudo ovs-ofctl -O Openflow13 show br-int > > OFPT_FEATURES_REPLY (OF1.3) (xid=0x2): dpid:000080153707399b > > n_tables:254, n_buffers:256 > > capabilities: FLOW_STATS TABLE_STATS PORT_STATS GROUP_STATS QUEUE_STATS > > OFPST_PORT_DESC reply (OF1.3) (xid=0x3): > > 1(br-physnet1-pa): addr:fa:fc:21:d0:c7:ef > > config: 0 > > state: 0 > > speed: 0 Mbps now, 0 Mbps max > > LOCAL(br-int): addr:80:15:37:07:39:9b > > config: PORT_DOWN > > state: LINK_DOWN > > speed: 0 Mbps now, 0 Mbps max > > OFPT_GET_CONFIG_REPLY (OF1.3) (xid=0x5): frags=normal miss_send_len=0 > > ubuntu@opnfv:~$ > > > > *Thanks* > > *Om Prakash* > > > > *From:* Karthikeyan [mailto:[email protected]] > *Sent:* Thursday, July 05, 2018 12:38 PM > > *To:* PRAKASH, OM <[email protected]> > *Cc:* [email protected]; om prakash <[email protected]>; > [email protected]; [email protected] > *Subject:* Re: [netvirt-dev] [sfc-dev] Opendaylight support for > networking-sfc > > > > Hi Om Prakash, > > > > To see the br-int show output you can explicitly specify the openflow > protocol version 1.3 as mentioned below. > > > > *sudo ovs-ofctl -O Openflow13 show br-int* > > > > Thanks & Regards, > > Karthikeyan. > > > > On Thu, Jul 5, 2018 at 9:59 PM, Karthikeyan <[email protected]> > wrote: > > Hi Om Prakash, > > > > Please refer the [0] email thread in ovsdb-dev related to same as your > issue. > > > > [0]: https://lists.opendaylight.org/pipermail/ovsdb-dev/2015- > February/001211.html > <https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.opendaylight.org_pipermail_ovsdb-2Ddev_2015-2DFebruary_001211.html&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=nGABpS95qb7WLoWMNmdaQg&m=7si2Nb2JZe6nha3JEsLOOriBL_odY0FflIvDIsGymMg&s=Jblm-CYsCSjlWYTwRd4agv-hn1qEqmTDxal5nlmrOk8&e=> > > > > *OVS Uninstall/Install - Verification Steps:* > > > > Please follow the below steps to confirm whether you have properly > downgraded the OVS 2.8 to 2.6. > > > > After uninstalling the OVS 2.8 (sudo apt-get purge --auto-remove > openvswitch-switch)execute* “lsmod | grep openvswitch” *command and > observe the output. > > - If it shows some output, then either restart vm or execute *“sudo > modprobe -r openvswitch”.* > - Please make sure “lsmod | grep openvswitch” doesn’t show any output. > > > > Thanks & Regards, > > Karthikeyan. > > > > > > On Thu, Jul 5, 2018 at 8:55 PM, PRAKASH, OM <[email protected]> wrote: > > Hi Karthikeyan, > > > > Actually I see below error. I think when I downgraded the OVS version from > 2.8 to 2.6 , it did not happen correctly . > > > > I used below command to uninstall OVS 2.8 “sudo apt-get purge --auto-remove > openvswitch-switch” > > > > Can you please suggest what should be done . > > > > stack@compute00:~/devstack$ sudo ovs-ofctl show br-int > > 2018-07-05T14:59:19Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt: > version negotiation failed (we support version 0x01, peer supports version > 0x04) > > ovs-ofctl: br-int: failed to connect to socket (Broken pipe) > > > > > > > > stack@compute00:~/devstack$ sudo ovs-ofctl show br-physnet1 > > OFPT_FEATURES_REPLY (xid=0x2): dpid:000008002755c154 > > n_tables:254, n_buffers:256 > > capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP > > actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src > mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst > > 1(enp0s10): addr:08:00:27:55:c1:54 > > 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 > > 2(br-physnet1-int): addr:1e:cb:05:67:cf:a1 > > config: 0 > > state: 0 > > speed: 0 Mbps now, 0 Mbps max > > LOCAL(br-physnet1): addr:08:00:27:55:c1:54 > > config: 0 > > state: 0 > > speed: 0 Mbps now, 0 Mbps max > > OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0 > > s > > > > *Thanks* > > *Om Prakash* > > > > *From:* Karthikeyan [mailto:[email protected]] > *Sent:* Tuesday, July 03, 2018 12:17 PM > *To:* PRAKASH, OM <[email protected]> > *Cc:* [email protected]; om prakash <[email protected]>; > [email protected]; [email protected] > *Subject:* Re: [netvirt-dev] [sfc-dev] Opendaylight support for > networking-sfc > > > > Hi Om Prakash, > > > > Based on the shared nova VM instance console log output, VM instance > has initiated DHCP discover request but we need to know whether dhcp > agent(q-dhcp) is sending dhcp offer response properly back to the VM or > not. To confirm this please do packet (using tcpdump) capture of the VM tap > interface also please confirm whether openstack q-dhcp service is up and > running properly without any issues. Please refer the below sample q-dhcp > service running status from the openstack cli command response. > > > > > > > > stack@osc-pike-ubuntu16:~$ openstack network agent list > > +--------------------------------------+----------------+--- > ----------------+-------------------+-------+-------+------- > -----------------------+ > > | ID | Agent Type | Host > | Availability Zone | Alive | State | Binary | > > +--------------------------------------+----------------+--- > ----------------+-------------------+-------+-------+------- > -----------------------+ > > | 1aa5f2c0-b6ea-4390-81fc-8e1f12d5a89e | Metadata agent | > osc-pike-ubuntu16 | None | :-) | UP | > neutron-metadata-agent | > > | 870fd06d-de30-4590-b33a-665556a410c2 | ODL L2 | > osc-pike-ubuntu16 | None | :-) | UP | > neutron-odlagent-portbinding | > > *| 8a5b4424-1e91-4932-9e6e-5a351817f70d | DHCP agent | > osc-pike-ubuntu16 | nova | :-) | UP | neutron-dhcp-agent > |* > > +--------------------------------------+----------------+--- > ----------------+-------------------+-------+-------+------- > -----------------------+ > > > > Thanks & Regards, > > Karthikeyan. > > > > > > > > > > >
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