topic Re: Problem with Interface RESTful when trying to obtain "flow table" on a switch in Software Defined Networking

Problem with Interface RESTful when trying to obtain "flow table" on a switch

sbotkine — Wed, 26 Mar 2014 10:29:09 GMT

Hello,

Sometimes when I try to execute the following curl on the controler to obtain flow table of a swith:

curl --noproxy 130.223.16.128 --header 'X-Auth-Token: a33de0c8553448aaaeec77d1d7934f6b' --fail -ksSfL --request GET --url https://130.223.16.128:8443/sdn/v2.0/of/datapaths/00:14:f0:92:1c:21:fa:c0/flows
curl: (22) The requested URL returned error: 500 Internal Server Error

I have the previous error.

Sometimes it works.

If I look for the log.log file, it have the following entry:

2014-03-26 11:20:06.642] WARN of-io-34-thread-4 hp.of.msglib DE0005I Parse FAILED: hdr=[V_1_3,MULTIPART_REPLY,1280,110638], bytes=[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]

[2014-03-26 11:20:06.642] WARN of-io-34-thread-4 hp.of.msglib DE0005I Parse terminated before end. Start=0, Target=1280, Read=1266, Remaining=14

Do you have an idea ?

Regards,

Serge

Re: Problem with Interface RESTful when trying to obtain "flow table" on a switch

sdnindia — Fri, 28 Mar 2014 21:15:29 GMT

Hello sbotkine,

Thanks for your query.
We are working on your problem.
Meanwhile we would like to know if you get the same error when you try REST API to see the flows.
Please try REST API Datapaths/{dpid}/flows [from HP VAN SDN Controller REST API doc- page 60] and let us know if you still face
the same error.

Thanks,
HP SDN Team

Re: Problem with Interface RESTful when trying to obtain "flow table" on a switch

sbotkine — Mon, 31 Mar 2014 06:16:39 GMT

Hello,

Yes I reproduce the problem on the RSdoc interface:

Request URL:

https://130.223.16.128:8443/sdn/v2.0/of/datapaths/00%3A14%3Af0%3A92%3A1c%3A21%3Afa%3Ac0/flows

Response Body:

{
  "error": "java.lang.IllegalStateException",
  "message": "Timed-out waiting for response"
}

Response Body:

Response Header:

Date: Mon, 31 Mar 2014 06:09:12 GMT
Server: Apache-Coyote/1.1
X-FRAME-OPTIONS: deny
Access-Control-Allow-Methods: GET, POST, PUT, HEAD, PATCH
Content-Type: application/json
Access-Control-Allow-Origin: *
Transfer-Encoding: Identity
Connection: close
Access-Control-Allow-Headers: Content-Type, Accept, X-Auth-Token

Notice that the problem occurs especially after the insertion of some Flow_mod in the switch, but not every time.

Re: Problem with Interface RESTful when trying to obtain "flow table" on a switch

SudhaHP — Tue, 08 Apr 2014 23:05:03 GMT

Hello Sbotkine,

The issue you mentioned was a known issue that was affecting HP VAN SDN Controller Release 2.0 operations .This has been fixed with our new Firmware release K/KA/WB.15.15.0006. (For 3800, the KA version must be used). The Web released software can be accessed from this link www.hp.com/networking/support

Enter a product # or description – e.g 5406” check the box for the 5406

Click on “display selected”

Click on the link “software downloads”->It will take you to:

https://h10145.www1.hp.com/downloads/SoftwareReleases.aspx?ProductNumber=J9642A

EA – Early Availability – should be evaluated prior to moving it to a production environment

GA – General Availability – considered production ready.

Please download the firmware and keep us posted on the status.

Thanks

Sudha.

Re: Problem with Interface RESTful when trying to obtain "flow table" on a switch

sbotkine — Wed, 09 Apr 2014 08:44:25 GMT

Ok it works.

Thanks a lot.

Serge