I think you mean that I want to achieve from this. I want to get IP protocol number from packet and then on the basis of that protocol number I want to assign bandwidth to flows/hosts on the basis of their needs. Like the protocol number which needs high bandwidth should be allocated high bandwidth or the one which needs less bandwidth should be allocated less bandwidth so, that bandwidth doesn't waste. I am doing this for end user satisfaction. This is related to QoS. Am I on Right direction? Can I do this?
On Fri, Apr 5, 2013 at 5:36 AM, Murphy McCauley <murphy.mccau...@gmail.com>wrote: > On Apr 4, 2013, at 4:08 PM, Sayed Qaiser Ali Shah Shah wrote: > > The link which you provide was very helpful and I found match class in > that and I use this code > > import pox.openflow.libopenflow_01 as of # POX convention > import pox.lib.packet as pkt # POX convention > my_match = of.ofp_match(dl_type = pkt.ethernet.IP_TYPE, nw_proto = > pkt.ipv4.TCP_PROTOCOL, > tp_dst = 80) > > Which will create match to web servers but I don't know how this will > work. Will it work automatically i.e. it will forward packets to server > automatically when any packet having nw_proto=TCP_Protocol and tp_dst=80. > If it does not forward the packet automatically then how it works? > > > You still haven't really explained what it is that you're trying to do. > What is your high-level goal? Are you trying to install flow table > entries? Do you want packets from particular flows sent to the controller? > Are you trying to block certain connections? > > If you're trying to install flow entries on the switch, you need to send > an ofp_flow_mod (as per the OpenFlow spec). This contains a match object > and then contains actions to tell the switch what to do with it (send it > out of a port, send it to the controller, etc.). See the section of the > manual wiki on ofp_flow_mod, as well as the examples in the forwarding > directory of POX (for example, l2_learning). > > -- Murphy > -- *Regards Sayed Qaiser Ali Shah MSIT-12 NUST (SEECS)*
