Hi Carlos,
> "*/using the group table with openflow 1.3 with no sucess/*" means that I am
> using the group table as i said before and it is not working, means that I am
> using the group specification and it doens't work.
"Does not work" means
- no group entry added
- group entry exists, but not looked up
- group entry looked up, but packets are not outputted
or ...
which you mean?
> and about your topology: It has only 2 switches or 4???
Only 2 switches (s1 and s2), which corresponding to "Start" and "End" switches
on the image you attached on your previous mail. Also h1 and h2 represents hosts
which do ping.
Thanks,
Iwase
On 2018年03月26日 21:14, Jose Carlos Ferreira de Melo Junior wrote:
Hey Iwase,
"*/using the group table with openflow 1.3 with no sucess/*" means that I am
using the group table as i said before and it is not working, means that I am
using the group specification and it doens't work.
and about your topology: It has only 2 switches or 4???
i don't know if my code is right or if i am missing something else.
2018-03-25 21:40 GMT-03:00 Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>>:
Hi Carlos,
For such purpose, OFPGT_SELECT is appropriate, I guess.
With the topology;
+--------+ +--------+
| s1 | | s2 |
+----+ | (port 2)---(port 2) | +----+
| h1 |---(port 1) | | (port 1)---| h2 |
+----+ | (port 3)---(port 3) | +----+
| | | |
+--------+ +--------+
I can install groups and flows entries, then can ping between h1 and h2
with the
following app.
$ git diff
diff --git a/ryu/app/simple_switch_13.py b/ryu/app/simple_switch_13.py
index 06a5d0e..e1a5c3b 100644
--- a/ryu/app/simple_switch_13.py
+++ b/ryu/app/simple_switch_13.py
@@ -48,6 +48,30 @@ class SimpleSwitch13(app_manager.RyuApp):
ofproto.OFPCML_NO_BUFFER)]
self.add_flow(datapath, 0, match, actions)
+ buckets = [
+ parser.OFPBucket(
+ 50, ofproto.OFPP_ANY, ofproto.OFPG_ANY,
+ [parser.OFPActionOutput(2)]),
+ parser.OFPBucket(
+ 50, ofproto.OFPP_ANY, ofproto.OFPG_ANY,
+ [parser.OFPActionOutput(3)]),
+ ]
+ mod = parser.OFPGroupMod(
+ datapath, ofproto.OFPGC_ADD, ofproto.OFPGT_SELECT, 1, buckets)
+ datapath.send_msg(mod)
+
+ match = parser.OFPMatch(in_port=1)
+ actions = [parser.OFPActionGroup(1)] # from host to switch
+ self.add_flow(datapath, 1, match, actions)
+
+ match = parser.OFPMatch(in_port=2)
+ actions = [parser.OFPActionOutput(1)] # from switch to host
+ self.add_flow(datapath, 1, match, actions)
+
+ match = parser.OFPMatch(in_port=3)
+ actions = [parser.OFPActionOutput(1)] # from switch to host
+ self.add_flow(datapath, 1, match, actions)
+
def add_flow(self, datapath, priority, match, actions,
buffer_id=None):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
I don't know what "using the group table with openflow 1.3 with no sucess"
means, but please confirm your group and flow table again.
Thanks,
Iwase
On 2018年03月23日 21:11, Jose Carlos Ferreira de Melo Junior wrote:
Hey Iwase,
Split means really divide the flow I dont know if would be like a load
balancing (I think it is)
For example the image below
But I dont know if this would be possible using the group table.
2018-03-23 4:04 GMT-03:00 Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>>>:
Hi Carlos,
What does "split flows" exactly mean?
> req = parser.OFPGroupMod(datapath, ofp.OFPFC_ADD,
ofp.OFPGT_SELECT,
> group_id, buckets)
If you specify OFPGT_SELECT, switch will execute "one" bucket in
the group and
not copied like the port mirroring. If you intend to do port
mirroring, you need
to specify OFPGT_ALL. For other available group types, please refer
to the
OpenFlow spec and your switch's specification.
Thanks,
Iwase
On 2018年03月21日 04:02, Jose Carlos Ferreira de Melo Junior wrote:
Hi there,
I know this topic was discussed before but I would like just a
simple
explanation about it.
Because I am using the group table with openflow 1.3 with no
sucess.
My purpose is to split one flow in two flows and forward on
port 3 and 4
using the group table.
My code is as follows:
*def group_mod(self, datapath):*
* global ofp, _parser_, dp*
* port_1 = 4*
* queue_1 = _parser_.OFPActionSetQueue(0)*
* actions_1 = [queue_1,
_parser_.OFPActionOutput(port_1)]*
*
*
*
*
* port_2 = 3*
* queue_2 = _parser_.OFPActionSetQueue(0)*
* actions_2 = [queue_2,
_parser_.OFPActionOutput(port_2)]*
*
*
* weight_1 = 50*
* weight_2 = 50*
*
*
* watch_port = ofproto_v1_3.OFPP_ANY*
* watch_group = ofproto_v1_3.OFPQ_ALL*
*
*
* buckets = [*
* _parser_.OFPBucket(weight_1, watch_port,
watch_group,
actions_1),*
* _parser_.OFPBucket(weight_2, watch_port,
watch_group,
actions_2)]*
*
*
* group_id = 50*
*
*
* req = _parser_.OFPGroupMod(datapath, ofp.OFPFC_ADD,
ofp.OFPGT_SELECT,*
* group_id, buckets)*
*
*
* datapath.send_msg(req)*
*
*
*
*
*
*
Hope this is right.
Could anyone help me with this issue?
-- Best regards,
José Carlos Ferreira
Msc student in Computer Science
System and Network Analyst at PoP-PE/RNP
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Msc student in Computer Science
System and Network Analyst at PoP-PE/RNP
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Best regards,
José Carlos Ferreira
Msc student in Computer Science
System and Network Analyst at PoP-PE/RNP
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