I think you need to put the dec_ttl before the output action. --Justin
On 2/2/14, 6:08 AM, "Allan Jie" <[email protected]> wrote: >Dear all, > >I start a network like 4 host and 1 switches. >h1,h2,h3,h4 and s1. > > >I know the dec_ttl action is for ipv4 packet and openflow 1.1+. > > >So I have finished this command. >ovs-vsctl set bridge s1 protocols=OpenFlow10,OpenFlow12,OpenFlow13 > >And also use -O OpenFlow13 in ovs-ofctl. >Like the following line: >ovs-ofctl -O OpenFlow13 add-flow s1 >table=0,priority=65535,ip,in_port=1,vlan_tci=0x0000,dl_src=9e:60:7c:45:f2: >b8,dl_dst=32:a2:19:d3:56:4f,nw_src=10.0.0.1,nw_dst=10.0.0.2,nw_proto=0,nw_ >tos=0,actions=output:2,dec_ttl > > >Then in h1, I use the command >h1 sendip -d dsf -p ipv4 -is 10.0.0.1 -id 10.0.0.2 10.0.0.2 >which will send an "ip packet" from h1 to h2. > >And then in h2, I use this command to listen the port. >tcpdump ip host 10.0.0.1 -v > > > >But the result is I cannot see any changes of the ttl in the received >packet. The ttl value is still 64. > > >How can I change that? Please help. > >Thank you. >Allan > > > >-- >Research student, final-year undergraduateExtreme Scale Network Computing >and service >laboratory(http://www.cloud-uestc.cn/cloud-uestc-EN/index.html), >School of Computer Science & Engineering, >University of Electronic Science and Technology of >China(http://www.oice.uestc.edu.cn/en/). >Website: http://www.allanjie.ml/ > > > >_______________________________________________ >discuss mailing list >[email protected] >http://openvswitch.org/mailman/listinfo/discuss _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
