devices not detected by onos

[Jacopo Terreri]

Hello everyone,

sorry for my bad english.

I have a problem with onos. 

When I try to push the netcfg.json in ONOS, the devices doesen't appear.

i use the virtual machine "ngsdn_tutorial.ova".

I want to create a simple static network with 1 switch and 2 hosts; the table will be pushed directly with P4runtime shell.

My idea is simple, when the switch detects excessive traffic, the switch send a packet_in to onos, and onos when recive the packet, print a line: "ATTENTION DOS DETECTED".

Mininet work normally and creates every hosts and links, but the ping doesen't work with static route and tables pushed with p4runtime.

I don't wan't onos worry about routin but only detect if packet_in was recived and print a string.

I use ipv4.

the network is:

mac addr h1 = 00:00:00:00:00:10

ip : 172.16.1.1 gw: 172.16.1.254

porta 2; (su file netcfg)

mac addr h2 = 00:00:00:00:00:20
ip : 172.16.1.2 gw: 172.16.1.254

porta 3 (su file netcfg)

mac addr leaf1 = 00:00:00:00:00:01

grpc: 50001;

the hosts is connected to the switch.

I'm attaching mine code to show you what have i done.

the file py.txt need to renominate in .py

the direcory of every files is

main.p4 in   "home/sdn/ngsdn-tutorial/p4src"

InterpreterImpl.java in     "/home/sdn/ngsdn-tutorial/app/src/main/java/org/onosproject/ngsdn/tutorial/pipeconf"

netcfg.json, topo-v4.py are in "home/sdn/ngsdn-tutorial/mininet"

to set static route i use this command

mininet> h1 route add -net 172.16.1.0 netmask 255.255.255.0 gw 172.16.1.254 dev h1-eth0

​

mininet> h2 route add -net 172.16.1.0 netmask 255.255.255.0 gw 172.16.1.254 dev h2-eth0

and to set tables with p4Runtime, i use the script in "home/sdn/ngsdn-tutorial/util" like that:

util/p4rt-sh --grpc-addr localhost:50001 --config p4src/build/p4info.txt,p4src/build/bmv2.json --election-id 0,1

than to push the tables:

te = table_entry["IngressPipeImpl.ipv4_lpm"](action = "IngressPipeImpl.ipv4_forward")

te.match["hdr.ipv4.dstAddr"] = ("172.16.1.1")

te.action["dstAddr"] = ("00:00:00:00:00:10")

te.action["port"] = ("2")

te.insert()

te2 = table_entry["IngressPipeImpl.ipv4_lpm"](action = "IngressPipeImpl.ipv4_forward")

te2.match["hdr.ipv4.dstAddr"] = ("172.16.1.2")

te2.action["dstAddr"] = ("00:00:00:00:00:20")

te2.action["port"] = ("3")

te2.insert()

thanks for the help to everyone.