Hi Iwase,
Sorry for the late answer
well... I checked the group stats as you said and it's not being looked up
*ovs-ofctl dump-group-stats -O OpenFlow s2*
*OFPST_GROUP reply (OF1.3) (xid=0x2):*
*group_id=1,duration=12.837s,ref_count=0,packet_count=0,byte_count=0,bucket0:packet_count=0,byte_count=0,byte_count=0,bucket1:packet_count=0,byte_count=0*
*
*
I'm really lost and don't know how to fix that
Do you have any idea of how can I solve this problem?
many thanks.
2018-03-29 1:33 GMT-03:00 Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>>:
Hi Carlos,
The group entries are looked up (or specified) by OFPActionGroup in flow
entries.
If looked up, ref_count, packet_count and byte_count should be incremented.
mininet> sh ovs-ofctl dump-group-stats s1 -O OpenFlow13
OFPST_GROUP reply (OF1.3) (xid=0x4):
group_id=1,duration=45.105s,ref_count=1,packet_count=5,byte_count=378,bucket0:packet_count=4,byte_count=336,bucket1:packet_count=1,byte_count=42
Thanks,
Iwase
On 2018年03月27日 23:10, Jose Carlos Ferreira de Melo Junior wrote:
Hi Iwase,
The group entry is added...
but I don't understand how can be looked up.
I don't know how to do this
Is there any other thing that I am missing ????
thanks in advanced
2018-03-26 20:28 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,
> "*/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>
<mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>> <mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>
<mailto: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>>
<mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>
<mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>>> <mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>
<mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>>
<mailto: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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-- Best regards,
José Carlos Ferreira
Msc student in Computer Science
System and Network Analyst at PoP-PE/RNP
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System and Network Analyst at PoP-PE/RNP
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