Hi all, Thanks Vincent for this confimation. I've noticed that error to the team here [1]. I think it could be interesting to update the wiki in order to signal new comer the network requirements for building a chain.
@ Cathy: I can create port chain but it just works once for me. After analysing OVS entries, it's probably due to flows misconfiguration. Regards, [1] http://lists.openstack.org/pipermail/openstack-dev/2016- August/101817.html On 1 September 2016 at 04:42, Vincent.Chao <vincentcha...@gmail.com <javascript:_e(%7B%7D,'cvml','vincentcha...@gmail.com');>> wrote: > Hi Neutrons, > > I met this situation once in the release Liberty. > Here is the thing. > When the create_port_chain() is called, (@networking-sfc/networking_sf > c/services/sfc/drivers/ovs/driver.py) > it goes the following code path > -> _thread_update_path_nodes() > ->_update_path_node_flowrules() > ->_update_path_node_port_flowrules() > ->_build_portchain_flowrule_body() > ->_update_path_node_next_hops() > ->_get_port_subnet_gw_info_by_port_id > ->_get_port_subnet_gw_info() raise exc.SfcNoSubnetGateway > if you didn't give the network a router, it raises SfcNoSubnetGateway . > And then back to the plugin.py: create_port_chain(), cache the exception > sfc_exc.SfcDriverError as e > In this exception, there is a delete_port_chain() method. > But due to the synchronization problem between DB and ovs-bridge, it will > delete failure. > I hope this info. could help anyone who uses a liberty version. > Next time, don't forget giving a router before creating a port chain. > > I don't see this code path in the master branch. > It may be better in mitaka. > > Thanks > Vincent > > > > 2016-08-31 2:19 GMT+08:00 Cathy Zhang <cathy.h.zh...@huawei.com > <javascript:_e(%7B%7D,'cvml','cathy.h.zh...@huawei.com');>>: > >> Hi Alioune, >> >> >> >> It is weird that when you create a port chain, you get a “chain delete >> failed” error message. >> >> We never had this problem. Chain deletion is only involved when you do >> “delete chain” or “update chain”. >> >> Not sure which networking code file combination you are using or whether >> it is because your system is not properly cleaned up or not properly >> installed. >> >> We are going to release the networking-sfc mitaka version soon. >> >> I would suggest that you wait a little bit and then use the official >> released mitaka version and reinstall the feature on your system. >> >> >> >> Thanks, >> >> Cathy >> >> >> >> *From:* Alioune [mailto:baliou...@gmail.com >> <javascript:_e(%7B%7D,'cvml','baliou...@gmail.com');>] >> *Sent:* Tuesday, August 30, 2016 8:03 AM >> *To:* OpenStack Development Mailing List (not for usage questions) >> *Cc:* Cathy Zhang; Mohan Kumar; Henry Fourie >> *Subject:* Re: [openstack-dev][neutron][networking-sfc] Unable to create >> openstack SFC >> >> >> >> Hi, >> >> Have you received my previous email ? >> >> >> >> Regards, >> >> >> >> On 15 August 2016 at 13:39, Alioune <baliou...@gmail.com >> <javascript:_e(%7B%7D,'cvml','baliou...@gmail.com');>> wrote: >> >> Hi all, >> >> I'm trying to launch Openstack SFC as explained in[1] by creating 2 SFs, >> 1 Web Server (DST) and the DHCP namespace as the SRC. >> >> I've installed OVS (Open vSwitch) 2.3.90 with Linux kernel 3.13.0-62 and >> the neutron L2-agent runs correctly. >> >> I followed the process by creating classifier, port pairs and port_group >> but I got a wrong message "delete_port_chain failed." when creating >> port_chain [2] >> >> I tried to create the neutron ports with and without the option >> "--no-security-groups" then tcpdpump on SFs tap interfaces but the ICMP >> packets don't go through the SFs. >> >> >> >> Can anyone advice to fix? that ? >> >> What's your channel on IRC ? >> >> >> >> Regards, >> >> >> >> >> >> [1] https://wiki.openstack.org/wiki/Neutron/ServiceInsertionAndChaining >> >> [2] >> >> vagrant@ubuntu:~/openstack_sfc$ ./08-os_create_port_chain.sh >> >> delete_port_chain failed. >> >> vagrant@ubuntu:~/openstack_sfc$ cat 08-os_create_port_chain.sh >> >> #!/bin/bash >> >> >> >> neutron port-chain-create --port-pair-group PG1 --port-pair-group PG2 >> --flow-classifier FC1 PC1 >> >> >> >> [3] Output OVS Flows >> >> >> >> vagrant@ubuntu:~$ sudo ovs-ofctl dump-flows br-tun -O OpenFlow13 >> >> OFPST_FLOW reply (OF1.3) (xid=0x2): >> >> cookie=0xbc2e9105125301dc, duration=9615.385s, table=0, n_packets=146, >> n_bytes=11534, priority=1,in_port=1 actions=resubmit(,2) >> >> cookie=0xbc2e9105125301dc, duration=9615.382s, table=0, n_packets=0, >> n_bytes=0, priority=0 actions=drop >> >> cookie=0xbc2e9105125301dc, duration=9615.382s, table=2, n_packets=5, >> n_bytes=490, priority=0,dl_dst=00:00:00:00:00:00/01:00:00:00:00:00 >> actions=resubmit(,20) >> >> cookie=0xbc2e9105125301dc, duration=9615.381s, table=2, n_packets=141, >> n_bytes=11044, priority=0,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00 >> actions=resubmit(,22) >> >> cookie=0xbc2e9105125301dc, duration=9615.380s, table=3, n_packets=0, >> n_bytes=0, priority=0 actions=drop >> >> cookie=0xbc2e9105125301dc, duration=9615.380s, table=4, n_packets=0, >> n_bytes=0, priority=0 actions=drop >> >> cookie=0xbc2e9105125301dc, duration=8617.106s, table=4, n_packets=0, >> n_bytes=0, priority=1,tun_id=0x40e actions=push_vlan:0x8100,set_f >> ield:4097->vlan_vid,resubmit(,10) >> >> cookie=0xbc2e9105125301dc, duration=9615.379s, table=6, n_packets=0, >> n_bytes=0, priority=0 actions=drop >> >> cookie=0xbc2e9105125301dc, duration=9615.379s, table=10, n_packets=0, >> n_bytes=0, priority=1 actions=learn(table=20,hard_ti >> meout=300,priority=1,cookie=0xbc2e9105125301dc,NXM_OF_VLAN_T >> CI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:0->NXM_OF_V >> LAN_TCI[],load:NXM_NX_TUN_ID[]->NXM_NX_TUN_ID[],output:NXM_O >> F_IN_PORT[]),output:1 >> >> cookie=0xbc2e9105125301dc, duration=9615.378s, table=20, n_packets=5, >> n_bytes=490, priority=0 actions=resubmit(,22) >> >> cookie=0xbc2e9105125301dc, duration=9615.342s, table=22, n_packets=146, >> n_bytes=11534, priority=0 actions=drop >> >> vagrant@ubuntu:~$ sudo ovs-ofctl dump-flows br-int -O OpenFlow13 >> >> OFPST_FLOW reply (OF1.3) (xid=0x2): >> >> cookie=0xbc2e9105125301dc, duration=6712.090s, table=0, n_packets=0, >> n_bytes=0, priority=10,icmp6,in_port=7,icmp_type=136 >> actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6709.623s, table=0, n_packets=0, >> n_bytes=0, priority=10,icmp6,in_port=8,icmp_type=136 >> actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6555.755s, table=0, n_packets=0, >> n_bytes=0, priority=10,icmp6,in_port=10,icmp_type=136 >> actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6559.596s, table=0, n_packets=0, >> n_bytes=0, priority=10,icmp6,in_port=9,icmp_type=136 >> actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6461.028s, table=0, n_packets=0, >> n_bytes=0, priority=10,icmp6,in_port=11,icmp_type=136 >> actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6712.071s, table=0, n_packets=13, >> n_bytes=546, priority=10,arp,in_port=7 actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6709.602s, table=0, n_packets=0, >> n_bytes=0, priority=10,arp,in_port=8 actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6555.727s, table=0, n_packets=0, >> n_bytes=0, priority=10,arp,in_port=10 actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6559.574s, table=0, n_packets=12, >> n_bytes=504, priority=10,arp,in_port=9 actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=6461.005s, table=0, n_packets=15, >> n_bytes=630, priority=10,arp,in_port=11 actions=resubmit(,24) >> >> cookie=0xbc2e9105125301dc, duration=9620.388s, table=0, n_packets=514, >> n_bytes=49656, priority=0 actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=9619.277s, table=0, n_packets=0, >> n_bytes=0, priority=20,mpls actions=resubmit(,10) >> >> cookie=0xbc2e9105125301dc, duration=6712.111s, table=0, n_packets=25, >> n_bytes=2674, priority=9,in_port=7 actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6559.621s, table=0, n_packets=24, >> n_bytes=2576, priority=9,in_port=9 actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6555.777s, table=0, n_packets=2, >> n_bytes=140, priority=9,in_port=10 actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6461.082s, table=0, n_packets=47, >> n_bytes=4830, priority=9,in_port=11 actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6709.646s, table=0, n_packets=3, >> n_bytes=230, priority=9,in_port=8 actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=9619.265s, table=10, n_packets=0, >> n_bytes=0, priority=0 actions=drop >> >> cookie=0xbc2e9105125301dc, duration=9620.378s, table=23, n_packets=0, >> n_bytes=0, priority=0 actions=drop >> >> cookie=0xbc2e9105125301dc, duration=9620.368s, table=24, n_packets=0, >> n_bytes=0, priority=0 actions=drop >> >> cookie=0xbc2e9105125301dc, duration=6709.633s, table=24, n_packets=0, >> n_bytes=0, >> priority=2,icmp6,in_port=8,icmp_type=136,nd_target=fe80::f816:3eff:fe2a:fe >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6712.101s, table=24, n_packets=0, >> n_bytes=0, >> priority=2,icmp6,in_port=7,icmp_type=136,nd_target=fe80::f816:3eff:fee7:1362 >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6559.607s, table=24, n_packets=0, >> n_bytes=0, >> priority=2,icmp6,in_port=9,icmp_type=136,nd_target=fe80::f816:3eff:fe91:95ee >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6555.766s, table=24, n_packets=0, >> n_bytes=0, >> priority=2,icmp6,in_port=10,icmp_type=136,nd_target=fe80::f816:3eff:fe76:d998 >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6461.055s, table=24, n_packets=0, >> n_bytes=0, >> priority=2,icmp6,in_port=11,icmp_type=136,nd_target=fe80::f816:3eff:fe5e:ed96 >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6709.611s, table=24, n_packets=0, >> n_bytes=0, priority=2,arp,in_port=8,arp_spa=55.55.55.12 >> actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6555.741s, table=24, n_packets=0, >> n_bytes=0, priority=2,arp,in_port=10,arp_spa=55.55.55.14 >> actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6712.080s, table=24, n_packets=13, >> n_bytes=546, priority=2,arp,in_port=7,arp_spa=55.55.55.11 >> actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6559.584s, table=24, n_packets=12, >> n_bytes=504, priority=2,arp,in_port=9,arp_spa=55.55.55.13 >> actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6461.015s, table=24, n_packets=15, >> n_bytes=630, priority=2,arp,in_port=11,arp_spa=55.55.55.15 >> actions=resubmit(,25) >> >> cookie=0xbc2e9105125301dc, duration=6709.714s, table=25, n_packets=0, >> n_bytes=0, priority=2,in_port=8,dl_src=fa:16:3e:2a:00:fe actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6559.641s, table=25, n_packets=34, >> n_bytes=2940, priority=2,in_port=9,dl_src=fa:16:3e:91:95:ee >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6461.117s, table=25, n_packets=60, >> n_bytes=5320, priority=2,in_port=11,dl_src=fa:16:3e:5e:ed:96 >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6712.130s, table=25, n_packets=36, >> n_bytes=3080, priority=2,in_port=7,dl_src=fa:16:3e:e7:13:62 >> actions=NORMAL >> >> cookie=0xbc2e9105125301dc, duration=6555.801s, table=25, n_packets=0, >> n_bytes=0, priority=2,in_port=10,dl_src=fa:16:3e:76:d9:98 actions=NORMAL >> >> >> >> >> >> ____________________________________________________________ >> ______________ >> OpenStack Development Mailing List (not for usage questions) >> Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscrib >> e >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> >> > -- Sent from Gmail Mobile
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