Problem with create new flow

[phoongsaan]

Hello everybody, I started evaluating the hp sdn van controller.

I have a problem, when I create a new flow it will get the response message back

{
"error": "com.hp.api.auth.AuthenticationException",
"message": "Authentication required"
}

what should i do ?

thanks eveymuch in advance

Sopon

[sdnindia · Accepted solution]

Hello phoongsaan,

Thanks for your query.

As per the error - "message": "Authentication required" , you have to first get an authentication token by calling the auth api then you can create the flow.

You may have to use authentication json [e.g. { "login": { "user": "sdn", "password": "skyline","domain": "sdn" }}  ] to get the token

Please have a look on SDN Controller Programming guide [page 16- Rsdoc Live Reference] .

Please follow the steps and let us know if you are still facing the problem.

Thanks,

HP SDN Team

[phoongsaan]

Thanks so much for the solution. Now, I try to add the new flow ,

{"flow": {
"priority": 30000,
"table_id": 200,
"idle_timeout": 60,
"match": [
{"ipv4_src": "192.168.1.20"},
{"ipv4_dst": "192.168.1.10"},
{"ip_proto": "tcp"},
{"eth_type": "ipv4"},
{"tcp_dst": "80"}
],
"instructions": [{"apply_actions": [{"output": 5}]}]
}}

it reply me with the response code "400",  What  should I do?, I already attach the picture of what happen.

Thank you.

[sdnindia]

Hello phoongsaan,

From the error message “Not supported before  version 1.1” , it is clear that the API needs a version  OpenFlow 1.1 or above.

By using the  GET  /of/datapaths REST API you can check the OpenFlow version. After calling this api  , in the response body you can see negotiated version which is the OpenFlow version. [for e.g. 1.0.0]

In your json you have table_id field which is supported only in  OpenFlow 1.1  and above.So you get the error.

You can either try the api with OpenFlow  1.1 and above or you can modify the call for 1.0.0

A sample json for OpenFlow 1.0.0 is as below ,you might need to modify accordingly

{"flow": {

"priority": 30000,

"idle_timeout": 60,

"match": [

{"ipv4_src": "10.0.0.1"},

{"ipv4_dst": "10.0.0.22"},

{"ip_proto": "tcp"},

{"eth_type": "ipv4"},

{"tcp_dst": "80"}

],

"actions": [{"output": 1}]

}}

Please let us know if you still face some problem.

Thanks,

HP SDN Team

[sdnindia]

Hi phoongsaan,

Doing a follow up to see if previous post helps you.
Please let us know if your problem is solved or you still have some problem.

Thanks,
HP SDN Team