Thank you for your helpful email I would like to ask you how can I get/retrieve the flow table of certain switch
Best regards, Amer On ٢١/٠٨/٢٠١٣, at ٣:١٧ ص, Murphy McCauley <murphy.mccau...@gmail.com> wrote: > Sorry, there's currently no example for this. > > There are a couple of prerequisites: > 1) You must be using a switch with the OVS/Nicira MPLS extensions > 2) You must be using the POX carp branch > > > After that, some quick pointers are... > > Import the Nicira extensions and packet library... > import pox.openflow.nicira as nx > import pox.lib.packet as pkt > > Build matches which match the MPLS unicast ethertype and some MPLS label... > msg = nx.nx_flow_mod() > msg.match.of_eth_type = pkt.ethernet.MPLS_TYPE > msg.match.of_mpls_label = 42 > > Create actions which add/push an MPLS header and/or set the label value... > msg = nx.nx_flow_mod() > msg.actions.append(nx.nx_action_push_mpls()) # Create header/push label > msg.actions.append(nx.nx_reg_load(dst=nx.OXM_OF_MPLS_LABEL, value=42)) # Set > label > > There are also actions for popping labels, setting the MPLS TTL, etc. See > pox.openflow.nicira or the Open vSwitch reference. > > -- Murphy > > On Aug 20, 2013, at 5:02 PM, Amer <amer7...@hotmail.com> wrote: > >> Hello, >> >> Hope you the best of health >> >> I would like to ask these questions: >> How to push and pop MPLS Tag to new packets >> How to make switching based MPLS tag >> >> Best Regards, >> Amer > >
