Hi Brady,
One more observation is that SFC flows you are talking about, like table 152 – 
158 are added in table 2 – 10 in my compute node. You can check the flows in 
the below paste link:
http://pastebin.com/MEN7dk8n
It seems some of the flows are missing. I am not able to understand why table 
numbers are changed in my compute node. With the same ODL controller, SFC 
worked fine with x86 compute node. Then, I attached my aarch64 compute node 
with OVS 2.6.1 patches (with DPDK), which is giving issues.
Do I need to do anything different?

Thanks for the help.

Regards,
Srikanth.

From: Sam Hague [mailto:[email protected]]
Sent: Tuesday, February 07, 2017 11:22 PM
To: Srikanth Lingala <[email protected]<mailto:[email protected]>>
Cc: Brady Allen Johnson 
<[email protected]<mailto:[email protected]>>; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>; 
Gorja Gorja <[email protected]<mailto:[email protected]>>; Rozet, Tim 
<[email protected]<mailto:[email protected]>>; Ferenc Cserepkei 
<[email protected]<mailto:[email protected]>>
Subject: Re: [sfc-dev] [SFC] ODL SFC with single compute node and OVS 2.6.1 NSH 
patches



On Tue, Feb 7, 2017 at 12:23 PM, Srikanth Lingala 
<[email protected]<mailto:[email protected]>> wrote:
Hi Brady,
One small update.
While creating SFC Classifier, in the karaf logs, I found the following WARNING 
messages:

2017-02-06 20:48:47,977 | WARN  | NV-SfcDTL-1      | 
NetvirtSfcWorkaroundOF13Provider | 295 - 
org.opendaylight.netvirt.openstack.net-virt-sfc-impl - 1.3.0.Boron | Failed to 
get renderedServicePatch for entry: 
Ace{getActions=Actions{augmentations={interface 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.acl.rev150105.RedirectToSfc=RedirectToSfc{getRspName=Path-mychain-Path-114,
 isRenderRsp=false}}}, 
getMatches=Matches{getAceType=AceIp{getDestinationPortRange=DestinationPortRange{getLowerPort=PortNumber
 [_value=80], getUpperPort=PortNumber [_value=80], augmentations={}}, 
getProtocol=6, getSourcePortRange=SourcePortRange{getLowerPort=PortNumber 
[_value=2000], getUpperPort=PortNumber [_value=2000], augmentations={}}, 
augmentations={}}, augmentations={}}, getRuleName=myclass, augmentations={}}

2017-02-06 20:48:53,252 | WARN  | NV-SfcDTL-1      | 
NetvirtSfcWorkaroundOF13Provider | 295 - 
org.opendaylight.netvirt.openstack.net-virt-sfc-impl - 1.3.0.Boron | 
handleRenderedServicePath: Could not identify gpe vtep vxgpe -> OF (0) on 
Node{getNodeId=Uri 
[_value=ovsdb://uuid/7e64138d-8a76-4f16-a6d8-35095922bf60/bridge/br-int], 
getTerminationPoint=[TerminationPoint{getTpId=Uri [_value=br-int], 
augmentations={interface 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation=OvsdbTerminationPointAugmentation{getIfindex=35,
 getIngressPolicingBurst=0, getIngressPolicingRate=0, getInterfaceType=class 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.InterfaceTypeInternal,
 getInterfaceUuid=Uuid [_value=c4d8822d-a58c-4e9a-b02c-4d1a12cd1a9a], 
getName=br-int, getOfport=65534, getPortUuid=Uuid 
[_value=963afdf4-b908-46d6-b153-32d6b30e5f85]}}}, TerminationPoint{getTpId=Uri 
[_value=vxlan-192.168.2.26], augmentations={interface 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation=OvsdbTerminationPointAugmentation{getIfindex=0,
 getIngressPolicingBurst=0, getIngressPolicingRate=0, getInterfaceType=class 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.InterfaceTypeVxlan,
 getInterfaceUuid=Uuid [_value=fa8eca30-cba1-494c-a039-8019eac50c87], 
getName=vxlan-192.168.2.26, getOfport=6, 
getOptions=[Options{getOption=local_ip, getValue=192.168.2.1, 
augmentations={}}, Options{getOption=remote_ip, getValue=192.168.2.26, 
augmentations={}}, Options{getOption=key, getValue=flow, augmentations={}}], 
getPortExternalIds=[PortExternalIds{getExternalIdKey=opendaylight-iid, 
getExternalIdValue=/network-topology:network-topology/network-topology:topology[network-topology:topology-id='ovsdb:1']/network-topology:node[network-topology:node-id='ovsdb://uuid/7e64138d-8a76-4f16-a6d8-35095922bf60/bridge/br-int']/network-topology:termination-point[network-topology:tp-id='vxlan-192.168.2.26'],
 augmentations={}}], getPortUuid=Uuid 
[_value=e91778e6-e44f-49bb-a8da-180a8b5e1a93]}}}, TerminationPoint{getTpId=Uri 
[_value=vxlan-192.168.2.2], augmentations={interface 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation=OvsdbTerminationPointAugmentation{getIfindex=0,
 getIngressPolicingBurst=0, getIngressPolicingRate=0, getInterfaceType=class 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.InterfaceTypeVxlan,
 getInterfaceUuid=Uuid [_value=4b8ff9cf-8a55-43fa-9a4a-6aeba7e0e0cd], 
getName=vxlan-192.168.2.2, getOfport=1, getOptions=[Options{getOption=local_ip, 
getValue=192.168.2.1, augmentations={}}, Options{getOption=remote_ip, 
getValue=192.168.2.2, augmentations={}}, Options{getOption=key, getValue=flow, 
augmentations={}}], 
getPortExternalIds=[PortExternalIds{getExternalIdKey=opendaylight-iid, 
getExternalIdValue=/network-topology:network-topology/network-topology:topology[network-topology:topology-id='ovsdb:1']/network-topology:node[network-topology:node-id='ovsdb://uuid/7e64138d-8a76-4f16-a6d8-35095922bf60/bridge/br-int']/network-topology:termination-point[network-topology:tp-id='vxlan-192.168.2.2'],
 augmentations={}}], getPortUuid=Uuid 
[_value=be986ca9-c1a4-427b-a729-6f5d7675317e]}}}], augmentations={interface 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation=OvsdbBridgeAugmentation{getBridgeExternalIds=[BridgeExternalIds{getBridgeExternalIdKey=opendaylight-iid,
 
getBridgeExternalIdValue=/network-topology:network-topology/network-topology:topology[network-topology:topology-id='ovsdb:1']/network-topology:node[network-topology:node-id='ovsdb://uuid/7e64138d-8a76-4f16-a6d8-35095922bf60/bridge/br-int'],
 augmentations={}}], getBridgeName=OvsdbBridgeName [_value=br-int], 
getBridgeOpenflowNodeRef=KeyedInstanceIdentifier{targetType=interface 
org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node,
 
path=[org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology,
 
org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology[key=TopologyKey
 [_topologyId=Uri [_value=ovsdb:1]]], 
org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node[key=NodeKey
 [_nodeId=Uri [_value=ovsdb://uuid/7e64138d-8a76-4f16-a6d8-35095922bf60]]]]}, 
getBridgeOtherConfigs=[BridgeOtherConfigs{getBridgeOtherConfigKey=hwaddr, 
getBridgeOtherConfigValue=ac:ad:fe:4b:69:43, augmentations={}}, 
BridgeOtherConfigs{getBridgeOtherConfigKey=disable-in-band, 
getBridgeOtherConfigValue=true, augmentations={}}], getBridgeUuid=Uuid 
[_value=22adf6f1-28d7-4098-a0f7-df732d3e1f9f], 
getControllerEntry=[ControllerEntry{getControllerUuid=Uuid 
[_value=9eb78a2f-e62f-4ae1-8c6f-21c3ac901d51], getTarget=Uri 
[_value=tcp:192.168.0.3:6653<http://192.168.0.3:6653>], isIsConnected=true, 
augmentations={}}], getDatapathId=DatapathId [_value=00:00:ac:ad:fe:4b:69:43], 
getDatapathType=class 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathTypeSystem,
 getFailMode=class 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbFailModeSecure,
 getManagedBy=OvsdbNodeRef [_value=KeyedInstanceIdentifier{targetType=interface 
org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node,
 
path=[org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology,
 
org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology[key=TopologyKey
 [_topologyId=Uri [_value=ovsdb:1]]], 
org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node[key=NodeKey
 [_nodeId=Uri [_value=ovsdb://uuid/7e64138d-8a76-4f16-a6d8-35095922bf60]]]]}], 
getProtocolEntry=[ProtocolEntry{getProtocol=class 
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeProtocolOpenflow13,
 augmentations={}}]}}}

One thing I am not able to understand is that ODL is trying to get RSP 
‘Path-mychain-Path-114’, which is not there. When I check the RSP in the DLUX 
SFC UI, I saw the RSP as ‘Path-mychain-Path-140’. Am I missing anything here?
This and the logs above match what Brady suspected - the chain isn't being 
built or the wrong one being requested. in the workflow you build the chain, 
then add the classifier. Those are the awarnings you see form netvirt - it 
can't get the RSP. The other warning is not finding the vxgpe port, which also 
added during the chain creation.
Seems like I recall a bug at some point where the wrong chain name was used. 
Can't remember if that was from the tacker side or something else. Maybe Brady 
can remember.

Regards,
Srikanth.

From: Srikanth Lingala
Sent: Tuesday, February 07, 2017 9:50 PM
To: 'Brady Allen Johnson' 
<[email protected]<mailto:[email protected]>>; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: Ferenc Cserepkei 
<[email protected]<mailto:[email protected]>>; Manuel 
Buil <[email protected]<mailto:[email protected]>>; Rozet, Tim 
<[email protected]<mailto:[email protected]>>; Veera.Reddy B 
<[email protected]<mailto:[email protected]>>; Gorja Gorja 
<[email protected]<mailto:[email protected]>>
Subject: RE: [SFC] ODL SFC with single compute node and OVS 2.6.1 NSH patches

Hi Brady,
While adding SFC and SFC Classifier, I can’t see any valid errors in karaf.log. 
Anyways, I am pasting WARN and ERROR logs of sfc in the below link:
Karaf warning messages:
http://pastebin.com/PCa4QFft

Karaf error messages:
http://pastebin.com/34CmBjZW

But, some of the karaf logs are old ones also.

And also, I observer below errors at Openvswitch log 
(/var/log/openvswitch/ovs-vswitchd2.log):

2017-02-06T18:34:59.555Z|00110|netdev_vport|WARN|vxgpe: unknown vxlan argument 
'nsp'
2017-02-06T18:34:59.555Z|00111|netdev_vport|WARN|vxgpe: unknown vxlan argument 
'nshc2'
2017-02-06T18:34:59.555Z|00112|netdev_vport|WARN|vxgpe: unknown vxlan argument 
'nshc3'
2017-02-06T18:34:59.555Z|00113|netdev_vport|WARN|vxgpe: unknown vxlan argument 
'nshc4'
2017-02-06T18:34:59.556Z|00114|netdev_vport|WARN|vxgpe: unknown vxlan argument 
'nsi'
2017-02-06T18:34:59.556Z|00115|netdev_vport|WARN|vxgpe: unknown vxlan argument 
'nshc1'
2017-02-06T18:34:59.556Z|00116|netdev_linux|WARN|br-int: removing policing 
failed: Operation not supported
2017-02-06T18:34:59.556Z|00117|netdev_linux|WARN|br-phy1: removing policing 
failed: Operation not supported
2017-02-06T18:36:15.772Z|00001|ofproto_dpif_xlate(pmd9)|ERR|over max 
translation depth 64: 
tcp,in_port=4,vlan_tci=0x0000,dl_src=fa:16:3e:f1:08:d3,dl_dst=fa:16:3e:03:7c:6a,nw_src=123.123.123.5,nw_dst=123.123.123.4,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=2000,tp_dst=80,tcp_flags=syn
2017-02-06T18:36:17.029Z|00001|ofproto_dpif_xlate(revalidator10)|ERR|over max 
translation depth 64: 
tcp,in_port=4,vlan_tci=0x0000,dl_src=fa:16:3e:f1:08:d3,dl_dst=fa:16:3e:03:7c:6a,nw_src=123.123.123.5,nw_dst=123.123.123.4,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=2000,tp_dst=80,tcp_flags=syn
2017-02-06T18:36:46.820Z|00002|ofproto_dpif_xlate(pmd9)|ERR|over max 
translation depth 64: 
tcp,in_port=4,vlan_tci=0x0000,dl_src=fa:16:3e:f1:08:d3,dl_dst=fa:16:3e:03:7c:6a,nw_src=123.123.123.5,nw_dst=123.123.123.4,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=2000,tp_dst=80,tcp_flags=syn
2017-02-06T18:37:18.884Z|00003|ofproto_dpif_xlate(pmd9)|ERR|over max 
translation depth 64: 
tcp,in_port=4,vlan_tci=0x0000,dl_src=fa:16:3e:f1:08:d3,dl_dst=fa:16:3e:03:7c:6a,nw_src=123.123.123.5,nw_dst=123.123.123.4,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=2000,tp_dst=80,tcp_flags=syn
2017-02-06T18:37:19.580Z|00002|ofproto_dpif_xlate(revalidator10)|ERR|over max 
translation depth 64: 
tcp,in_port=4,vlan_tci=0x0000,dl_src=fa:16:3e:f1:08:d3,dl_dst=fa:16:3e:03:7c:6a,nw_src=123.123.123.5,nw_dst=123.123.123.4,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=2000,tp_dst=80,tcp_flags=syn

Does the above error messages are anything to do with the adding of SFC flows 
in the compute node?

Regards,
Srikanth.

From: Brady Allen Johnson [mailto:[email protected]]
Sent: Tuesday, February 07, 2017 3:55 PM
To: Srikanth Lingala 
<[email protected]<mailto:[email protected]>>; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: Ferenc Cserepkei 
<[email protected]<mailto:[email protected]>>; Manuel 
Buil <[email protected]<mailto:[email protected]>>; Rozet, Tim 
<[email protected]<mailto:[email protected]>>; Veera.Reddy B 
<[email protected]<mailto:[email protected]>>; Gorja Gorja 
<[email protected]<mailto:[email protected]>>
Subject: [SFC] ODL SFC with single compute node and OVS 2.6.1 NSH patches


Srikanth,

The reason wget works and doesnt send packets to the VM is because your 
classification rule (pasted below) matches on srcPort=2000 and dstPort=80, but 
you dont specify the srcPort with wget, so the packets dont match 
classification, and subsequently dont get sent to SFC (hence they dont go the 
VNF VM). The packets go directly from the client to the server.

This is your classification flow:
cookie=0x1110010000510255, duration=1268.611s, table=11, n_packets=896, 
n_bytes=66304, tcp,reg0=0x1,tp_src=2000,tp_dst=80 
actions=move:NXM_NX_TUN_ID[0..31]->NXM_NX_NSH_C2[],push_nsh,load:0x1->NXM_NX_NSH_MDTYPE[],load:0x3->NXM_NX_NSH_NP[],load:0xc0a8001a->NXM_NX_NSH_C1[],load:0x33->NXM_NX_NSP[0..23],
load:0xff->NXM_NX_NSI[],load:0x7b7b7b03->NXM_NX_TUN_IPV4_DST[],load:0x33->NXM_NX_TUN_ID[0..31],resubmit(,0)

Looking at the flows in more detail, I dont see the SFC flows, which is why the 
packets dont go to the VNF VM when you use curl. When SFC is used with Netvirt 
for OPNFV (which is what you're doing here) the SFC flows should be in tables 0 
and tables 152-158. The largest table I see here is 111. Netvirt is working 
correctly, and sending the packets to SFC, but the SFC flows dont exist.

Can you check the ODL logs to see if something failed in SFC. The ODL logs are 
usually in /opt/opendaylight/data/logs/karaf.log* Just do this grep to see what 
happened:
grep -i sfc /opt/opendaylight/data/logs/karaf.log*

Regards,

Brady
On 07/02/17 09:24, Srikanth Lingala wrote:
Hi,
My setup includes:

•         One Openstack Controller with ODL (of course with SFC) which is 
deployed through OPNFV Colorado 3.0

•         One aarch64 Compute Node (OpenStack Mitaka), which is attached to the 
above OS Controller

I downloaded OVS 2.6.1 from OVS git hub and applied NSH patches from below URL:

https://github.com/yyang13/ovs_nsh_patches/tree/master/v2.6.1

I am able to create the SFC attributes like VNFD, VNF, Chain, and Classifier 
through Tim Rozet SFC walkthrough 
(https://github.com/trozet/sfc-random/blob/master/tacker_sfc_apex_walkthrough.txt).
 And also, I launched VNF, http_server and http_client VM’s on the same compute 
node.
All the related NSH flows are added to the bridge ‘br-int’ in the compute node 
without fail.

But, when I execute the command ‘curl --local-port 2000 123.123.123.4’ from the 
http_client VM, I am getting the below error message:

curl: (7) Failed to connect to 123.123.123.4 port 80: Connection timed out

When I execute the command ‘wget 123.123.123.4’ from the http_client VM, I am 
getting the 200 OK response.
But, in both the cases, no VxLAN packets are coming at the tacker VNF VM (using 
vxlan_tool.py).

OVS bridges and flows details of Compute Node are given at the below link:
http://pastebin.com/MEN7dk8n

Can anyone give me some clue, to debug the issue.

I also want to know, whether anyone one are succeeded while executing SFC 
across compute node through ODL and OVS 2.6.1 with NSH patches from Yang.
Thanks for the help.

Regards,
Srikanth.


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