Dear all, I'm trying to remove all the flows from a switch (something similar to the first flow_mod from the NOX controller during the initialization). I have a flow (udp stream) that flows in my network. After a while I want to change the path. My idea is to remove the flow from the switch so the switch will ask again to the controller, and the controller will send the new path. It's difficult to explain, but I cannot modify the flow, so I need to delete and the reinstall another one. Here is my code. As you can see I set the command to delete, and the wildcard to all to match all the packet in the switch. It matches the flow (I have only one flow in the switch), it installs a drop rule to that flow. So the result is not what I expected: all the packet that match the rule are dropped, and I'm not able to install the new flow∑ Is there a way to remove the flow without adding the drop rule for the new packets? FVFlowMod flowMod=new FVFlowMod(); OFMatch match = new OFMatch(); match.fromString(currentFlow); flowMod.setCommand(OFFlowMod.OFPFC_DELETE); flowMod.setCookie(0); flowMod.setFlags((short) 0); match.setWildcards(OFMatch.OFPFW_ALL); flowMod.setMatch(match); flowMod.setOutPort((short) OFPort.OFPP_NONE.getValue()); flowMod.setPriority((short) 0); flowMod.setHardTimeout((short)0); flowMod.setIdleTimeout((short)0); List<OFAction> actions = new LinkedList<OFAction>(); flowMod.setActions(actions); flowMod.setLength(U16.t(flowMod.getLength()));
-------------------------------------------------------- Matteo Gerola CREATE-NET Engineering and Fast Prototyping Research Engineer Via alla Cascata 56/D - 38123 Povo Trento (Italy) e-mail: matteo.ger...@create-net.org Tel: (+39) 0461 408400 - interno/extension 1312 Fax: (+39) 0461 421157 Skype: matteo.gerola www.create-net.org -------------------------------------------------------- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited according to the Italian Law 196/2003 of the Legislature. If you received this in error, please contact the sender and delete the material from any computer. Le informazioni contenute in questo messaggio di posta elettronica e nei file allegati sono da considerarsi strettamente riservate. Il loro utilizzo e' consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceveste questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla cancellazione del messaggio stesso dal Vostro sistema. Trattenere il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D. Lgs. 196/2003. _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
