Hello,
I am trying to implement a monitoring protocol. For this I am relying
on the routing module. I have a simple setup involving three
openflow-enabled hardware switches. Below is the topology:
+----+ Vl 1+----+Vl 2 +----+
H1------| R1 |----------| R2 |----------| R3 |------H2
+----+ +----+ +----+
R1 and R2 share vlan 1 (ip 192.168.1.0/24) and R2 and R3 share vlan 2
(ip address 192.168.2.0/24). H1 (192.168.1.1) and H2 (192.168.2.1) are
end hosts.
Each vlan instance connects to the controller and is correctly picked up
by nox as it registers the correct number of datapaths and switches.
When I run, nox_core -i ptcp:2525 routing, I obtain the following output:
a...@pcepatr39[src]$ sudo ./nox_core -i ptcp:2525 switch routing
[sudo] password for ash:
NOX 0.5.0~full~beta (nox_core), compiled Oct 13 2009 14:43:43
Compiled with OpenFlow 0x97 (exp)
00001|sqlite3-impl|WARN:Transactional storage file not given in the
command line; defaulting to 'testing.sqlite'
00002|discovery|WARN:new link detected (00:00:2e:98:ca:40:00:66 p:45 ->
00:00:2e:9a:ea:00:00:66 p:45)
00004|discovery|WARN:new link detected (00:00:2e:9a:ea:00:00:65 p:41 ->
00:00:2e:98:8c:c0:00:65 p:41)
00005|discovery|WARN:new link detected (00:00:2e:9a:ea:00:00:66 p:45 ->
00:00:2e:98:ca:40:00:66 p:45)
00006|discovery|WARN:new link detected (00:00:2e:98:8c:c0:00:65 p:41 ->
00:00:2e:9a:ea:00:00:65 p:41)
So the links are correctly detected by the discovery module. But when I
attempt to ping H2 from H1. The only flow then I see setup is:
duration=11s, table_id=0, priority=65535, n_packets=9, n_bytes=540,
idle_timeout=60,hard_timeout=0,arp,in_port=48,dl_vlan=0xffff,dl_src=00:50:da:6e:ac:7f,
dl_dst=ff:ff:ff:ff:ff:ff,nw_src=0.0.0.0,nw_dst=0.0.0.0,nw_proto=0,tp_src=0,tp_dst=0,actions=FLOOD
And no other flows are setup and no messages are sent out by the routing
module. Am I missing something about the routing module? From the manual
it seems like it is supposed to setup flows on each router from source
till the destination.
I am running this on 3 hp 3500s, with nox 0.5.0 full.
Thanks for your help,
--
Ali Al-Shabibi
Doctoral Student
PH-ATD
CERN - European Organization for Nuclear Research
Office: 513 R-018
ali.al-shab...@cern.ch
Tel : +41 22 767 86 46
Mob : +41 78 609 04 84
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