CODEWITHSUNDEEP
sdnopendaylightopenflow
Frogsam
Frogsam

Reputation: 3

Add flow rules on ODL calcium release

I'm very new to sdn and virtualization world
after a lot of headache, I finally could do a successful GET request to
http://127.0.0.1:8181/rests/data/opendaylight-inventory:nodes
but when I tried to add flows it never works.
the problem is that most of the actual useful docs or links are either for older releases which still use

  1. old features
  2. old urls like restconf/...

either the links are just broken, and the official documentation is not very beginner-friendly.
however I tried:

if I send to http://127.0.0.1:8181/rests/data/opendaylight-inventory:nodes/node=openflow:1/table=0/flow=1
via put or post it says: 

"error-tag": "data-missing",
                "error-message": "Schema for '(urn:opendaylight:inventory?revision=2013-08-19)table' not found"

if I send to http://127.0.0.1:8181/rests/data/opendaylight-inventory:nodes/node=openflow:1/flow-node-inventory:table=0/flow=1
via put it says:
500 Server Error
via post it says : 

"error-tag": "malformed-message",
                "error-info": "Schema node with name in_port was not found under (urn:opendaylight:flow:inventory?revision=2013-08-19)match.",
                "error-message": "Error parsing input: Schema node with name in_port was not found under (urn:opendaylight:flow:inventory?revision=2013-08-19)match."

I did on the parameter "in_port" : 

"match": {
        "in_port": "openflow:1:1",

I tried to send to that link first because I saw it somewhere on stack exchange
second because I at least could access http://127.0.0.1:8181/rests/data/opendaylight-inventory:nodes/node=openflow:1/flow-node-inventory:table=0 and see its content on the browser

I know I'm lacking a lot and it might look like a mess to you, but I really am very new to this but I need to configure flow rules as soon as possible,I keep looking everywhere but it's really hard to get this without a good background on networking, please help and thanks in advance.

if I need to add more information like what features did I install, and how much nodes are there please tell me to add it.

Upvotes: 0

Views: 89

Answers (2)

D Arjona
D Arjona

Reputation: 56

BTW, there is a new guide that describes how to configure OpenDaylight and add flows for an SDN network. You may find it here:

http://repositorioinstitucional.uaslp.mx/xmlui/handle/i/8772

Upvotes: 0

D Arjona
D Arjona

Reputation: 56

To add a flow in ODL, it is necessary to define the flow in a JSON or XML file and to provide the instruction where the flow needs to be installed. For example, if you want to add flow 12, at table 0 in node openflow:1 and the flow is defined at file myflow12.json, you may use the following instruction:

curl -u admin:admin -X PUT -d "@myflow12.json" -H "Content-Type: application/json" http://127.0.0.1:8181/rests/data/opendaylight-inventory:nodes/node=openflow:1/flow-node-inventory:table=0/flow=12

Additionally, you need to provide the myflow12.json file with flow instructions. An example of a flow that instructs openflow:1 to flood all packets received at port 3 would be:

{
    "flow": [
        {
            "table_id": 0,
            "id": "12",
            "priority": "1001",
            "match": {
                "in-port": "openflow:1:3"
            },
            "instructions": {
                "instruction": [
                    {
                        "order": 0,
                        "apply-actions": {
                            "action": [
                                {
                                    "order": 0,
                                    "output-action": {
                                        "output-node-connector": "FLOOD"
                                    }
                                }
                            ]
                        }
                    }
                ]
            }
        }
    ]
}

Notice that table_id and id (flow id) match the restconf instruction.

Upvotes: 0

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