[OPNFLWPLUG-147] Unable to push flows to OVS via RESTCONF Created: 01/May/14  Updated: 27/Sep/21  Resolved: 22/May/14

Status: Resolved
Project: OpenFlowPlugin
Component/s: General
Affects Version/s: None
Fix Version/s: None

Type: Bug
Reporter: Christopher O'Shea Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Operating System: Mac OS
Platform: PC

External issue ID: 936

 Description   

Since the new Datastore was made default unable to push flows to OVS.

Start mininet
sudo mn --controller=remote,ip=192.168.68.1 --topo tree,2 --switch ovsk,protocols=OpenFlow13

Push flow via RESTConf. http://127.0.0.1:8080/restconf/config/opendaylight-inventory:nodes/node/openflow:1/table/2/flow/124

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<flow xmlns="urn:opendaylight:flow:inventory">
<strict>false</strict>
<instructions>
<instruction>
<order>0</order>
<apply-actions>
<action>
<order>0</order>
<dec-nw-ttl/>
</action>
</apply-actions>
</instruction>
</instructions>
<table_id>2</table_id>
<id>124</id>
<cookie_mask>255</cookie_mask>
<installHw>true</installHw>
<match>
<ethernet-match>
<ethernet-type>
<type>2048</type>
</ethernet-type>
</ethernet-match>
<ipv4-destination>10.0.1.0/24</ipv4-destination>
</match>
<hard-timeout>120</hard-timeout>
<flags>FlowModFlags [_cHECKOVERLAP=false, _rESETCOUNTS=false, _nOPKTCOUNTS=false, _nOBYTCOUNTS=false, _sENDFLOWREM=false]</flags>
<cookie>1</cookie>
<idle-timeout>34</idle-timeout>
<flow-name>FooXf1</flow-name>
<priority>2</priority>
<barrier>false</barrier>
</flow>

Can see flow via RESTConf
http://127.0.0.1:8080/restconf/config/opendaylight-inventory:nodes/node/openflow:1/table/2/flow/124

But when checking out the flows in OVS i'm unable to see the flow
mininet> dpctl dump-flows -O OpenFlow13

      • s1 ------------------------------------------------------------------------
        OFPST_FLOW reply (OF1.3) (xid=0x2):
      • s2 ------------------------------------------------------------------------
        OFPST_FLOW reply (OF1.3) (xid=0x2):
      • s3 ------------------------------------------------------------------------
        OFPST_FLOW reply (OF1.3) (xid=0x2):
        mininet>

 Comments   
Comment by Christopher O'Shea [ 02/May/14 ]

Actually that flow is pushed correctly, The flow that fails is

PUT http://127.0.0.1:8080/restconf/config/opendaylight-inventory:nodes/node/openflow:1/table/2/flow/128

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<flow xmlns="urn:opendaylight:flow:inventory">
<strict>false</strict>
<instructions>
<instruction>
<order>0</order>
<apply-actions>
<action>
<order>0</order>
<dec-mpls-ttl/>
</action>
</apply-actions>
</instruction>
</instructions>
<table_id>2</table_id>
<id>128</id>
<cookie_mask>255</cookie_mask>
<match>
<ethernet-match>
<ethernet-type>
<type>2048</type>
</ethernet-type>
<ethernet-destination>
<address>ff:ff:ff:ff:ff:ff</address>
</ethernet-destination>
<ethernet-source>
<address>00:00:00:00:23:ae</address>
</ethernet-source>
</ethernet-match>
<ipv4-source>10.1.2.0/24</ipv4-source>
<ipv4-destination>20.4.0.0/16</ipv4-destination>
<in-port>0</in-port>
</match>
<hard-timeout>12</hard-timeout>
<flags>FlowModFlags [_cHECKOVERLAP=false, _rESETCOUNTS=false, _nOPKTCOUNTS=false, _nOBYTCOUNTS=false, _sENDFLOWREM=false]</flags>
<cookie>5</cookie>
<idle-timeout>34</idle-timeout>
<flow-name>FooXf5</flow-name>
<priority>2</priority>
<barrier>false</barrier>
</flow>

Comment by Kamal Rameshan [ 02/May/14 ]

Tried to add a flow via the following url. Works fine.

http://localhost:8080/controller/nb/v2/flowprogrammer/default/node/MD_SAL/openflow:1/staticFlow/flow109

But update of the flow fails, which is the same as old OPNFLWPLUG-15 (i am working on this one)

Comment by Christopher O'Shea [ 06/May/14 ]

Only affect XML files with the action "dec-nw-tll"

Comment by Christopher O'Shea [ 22/May/14 ]

Looks like OVS 2.1.0 and above check thats if the Ethernet type is anything other than MPLS ethernet type.

Once changed Ethernet Type to 34887 it works.

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