The thing is I want alternate packets to use different paths ... similar to a loadbalancer
So the idea was like to embed all the paths in the header (say 3 paths) and use a random number (1- 3) for packet i and route the packet via that path On Tue, Jan 27, 2015 at 12:51 AM, Ben Pfaff <b...@nicira.com> wrote: > I don't understand why you want to do this by intercepting output > ports. Define a new action to do what you want, then use that action. > > On Mon, Jan 26, 2015 at 11:54:48AM +0530, Sree Vidya S D wrote: > > Hi Ben, > > > > thanks for responding! > > > > I am embedding multiple path information from source to destination in ip > > and mac headers > > > > So I am sending flow mod messages from the controller to mininet > > > > In > > > > I use a random number to select one among the n path information I have > > embedded in the headers > > > > I understood the control flow as > > > > a) The packet enters from switch from the host into the function > > "void ovs_dp_process_received_packet(struct vport *p, struct sk_buff > *skb)" > > > > b) The actions get applied on these packets due to the function call > > "ovs_dp_process_packet_with_key(skb,&key,false)" > > (As far as my understanding does this . I am not sure whether Iam right > > here) > > > > c) I was thinking if skb contains the modified packet after the call to > " > > ovs_dp_process_packet_with_key(skb,&key,false)" > > then i could extract the output port from the headers and do rest of the > > processing > > > > On Mon, Jan 26, 2015 at 3:49 AM, Ben Pfaff <b...@nicira.com> wrote: > > > > > What's your actual goal? > > > > > > On Mon, Jan 26, 2015 at 12:50:16AM +0530, Sree Vidya S D wrote: > > > > Thanks a lot Ben! > > > > > > > > But I need little more help over here. > > > > > > > > How do I get my modified packet ? Is that possible? > > > > > > > > On Mon, Jan 26, 2015 at 12:45 AM, Ben Pfaff <b...@nicira.com> wrote: > > > > > > > > > On Sun, Jan 25, 2015 at 11:33:15PM +0530, Sree Vidya S D wrote: > > > > > > In this particular function body theres a call to function > > > > > > > > > > > > ovs_dp_process_packet_with_key(skb,&key,false); ---2 > > > > > > > > > > > > So when the control returns from function 2 does skb contains the > > > packet > > > > > > with the actions applied ?? > > > > > > > > > > > > say i specify action as modify the mac header... in dat case > does skb > > > > > > contain the modified packet?? > > > > > > > > > > No, it looks to me like the packet has been freed at that point. > > > > > > > > > > > > > > > > > > > > > -- > > > > -- > > > > > > > > *????g?????????, sreevidya* > > > > > > > > > > > -- > > -- > > > > *????g?????????, sreevidya* > -- -- *яєgαя∂ѕ, sreevidya* _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
