370 questions
1
vote
0
answers
35
views
NiFi ListS3 Processor SdkClientException: Name or service not known for S3 bucket
I'm setting up an Apache NiFi flow using the ListS3 processor to scan an AWS S3 bucket, but I keep getting errors, and the processor isn't listing any files from the bucket.
NiFi Processor ...
- 61
0
votes
0
answers
59
views
Mininet can't ping from switch (s1) to host (h1-h4)
I'm creating a simple mininet with a simple command like below. I'm using the OpendayLight SDN controller along with 192.168.20.0/24 subnet. Remote controller IP is hosted at 192.168.8.5. It connects ...
- 9
0
votes
1
answer
238
views
onos service start error - ONOS GUI not ready yet... please stand by
After changing the IP address of my machine, I'm encountering an issue with the ONOS GUI service. When attempting to start the GUI, I receive the message "ONOS GUI not ready yet... please stand ...
- 106
0
votes
1
answer
2k
views
Cannot resolve the problem of not opening miniedit in mininet
I have problem opening miniedit file, it was working for me two days ago and I have no idea what change I have made it is not waorking today.
Here is my command:
➜ examples git:(master) python3 ...
0
votes
1
answer
435
views
Implement QoS with Ryu controller
I have tried to use OVSBridge in ryu.lib.ovs.bridge to implement QoS but it doesn't work as I expected.
Here is a link that includes a method to implement QoS from the controller.
Here is my app code:...
- 574
1
vote
1
answer
393
views
How to let the ryu controller sample one packet everytime
I am new to the area of SDN and now I am trying to implement a function in Ryu controller: let's assume we let host1 send packets to host2. And I'd like to let the controller receive each 5th flow ...
- 15
0
votes
1
answer
2k
views
How do you deal with a No default OpenFlow controller found for default switch?
*** No default OpenFlow controller found for default switch!
0
votes
1
answer
165
views
Sending the first K packets to the SDN controller
I'm trying to send the first K packets of each newly arrival flow to the SDN controller, e.g. pox or ryu. Currently, the packet-in method seems to be triggered at the moment of a new flow arrives to ...
- 213
0
votes
2
answers
311
views
Is it possible to compress the rtmp vedio streaming on the transit nodes of a networking?
I want to do some labtory work using a network like this:
I want to transmit rtmp video streaming packets from the "server" node to the "client" node. The rtmp packets will be ...
- 19
0
votes
1
answer
49
views
omnet runtime erro
I'm trying to run SDN Multiple controllers in omnet.
I change some code in OFA_switch.cc .. I uncommented the first section and comment the lower section of code as illustrated.
Since there is not a ...
- 1
1
vote
1
answer
574
views
Keyerror when handling the EventOFPFlowStatsReply message in the Ryu Controller
I'm trying to get the requested FlowStat information in Simple_monitor_13 (Ryu SDN Controller), but when run with a simple mininet topology and "pingall", the application keeps reporting ...
- 13
0
votes
1
answer
153
views
scenarios of openflow in omnet are not working properly
I download openflow. It successfully been built. However, only scenario_Small is correctly working, when try to run other scenarios error runtime appears such as that:
Cannot add statistic '...
- 1
0
votes
0
answers
517
views
Cannot retrieve data from data store /restconf/config/opendaylight-inventory:nodes/ REST API
I am using Opendaylight Carbon (also tried Oxygen) with Mininet. I created a small network which conects to the remote ODL Controller using OpenFlow 1.3 using Virtual machines (Ubuntu 18.04) on the ...
2
votes
2
answers
2k
views
How to mention "--switch=ovsk,protocols=OpenFlow13" while making a topology using Mininet() class in Python?
Look at the following command -
$ sudo mn --controller=remote,ip=127.0.0.1,port=6653 --switch=ovsk,protocols=OpenFlow13 --topo=tree,depth=2,fanout=4
I want to achieve this topology using Python code.
...
1
vote
4
answers
994
views
Modifying a config in Opendaylight
I am needing to modify my Openflow configurations in my Opendaylight (0.11.x sodium) system. I follow the documentation which has helped guide is in
creating new configs
deleting configs
replacing ...
- 2,851
0
votes
1
answer
451
views
Mininet OpenvSwitch Multi-controller Configuration
According to OpenFlow specification, OpenFlow switch can be connected to multiple controllers with different role.
I am now implementing mininet topology with OpenvSwitch. I would like to know how to ...
- 53
1
vote
0
answers
1k
views
Ryu controller - simple_switch_13_stp does not recalculate the Tree after a failure?
I am using mininet with a Ryu controller.
For the Ryu controller I am using the command:
ryu-manager simple_switch_stp_13.py
Concerning mininet I use the topology defined in the file Topo1.py:
from ...
- 11
0
votes
1
answer
61
views
In Opendaylight, we send openflow's multipart request and why wireshark can see accumulate multipart request in a single packet?
Like this figure,enter image description here
I can find many openflow1.3 which are multipart requests in this packet, but I don't know why happened here?
Actually, isn't it only one openflow1.3 here ?...
0
votes
1
answer
555
views
OpenDaylight add more listening port
In OpenDaylight, tcp listening port default set as 6653, 6633.
But I want to use more ports (e.g. 6634, 6635).
Where should I config them?
1
vote
0
answers
72
views
SDN vulnerability
I have searched about OpenFlow protocol or any SDN controller vulnerabilities that a real attack had been done. All of the papers just wrote about attack possibilities. I am looking for any real world ...
- 21
2
votes
0
answers
264
views
ovs-ofctl dl_dst not equal to
I'm trying to direct non-broadcast arps to my controller.
Basically I wanted to do something like this:
sudo ovs-ofctl add-flow br0 dl_type=0x0806,dl_dst!=ff:ff:ff:ff:ff:ff,priority=101,action=...
- 21
0
votes
1
answer
466
views
ODL magnesium with Openflow
I want to setup mininet, Openflow plugin with ODL magnesium version where the ODL UI is not supported now.
I need guidance on how can I set this up on my local system and configure it.
The main ...
1
vote
0
answers
825
views
Getting flow infos from switch and copy the info in csv file (Ryu controller)
Hope you help me, I want to get flow info from switch and that by sending a request every 10s and the switch reply with the info but I get the following error when the controller receive the reply by ...
- 11
0
votes
1
answer
669
views
ODL controller delete pre-configured flow rules in OVS switch, when switch is registered in ODL
In time when OVS is registering in opendaylight (first time or after IP connectivity was lost and restored to ODL), each time pre-configured openflow rules on OVS (by ovs-ofctl add-flow) are ...
1
vote
1
answer
175
views
Are there any similar sdn controllers to POX controller
I am newbie to SDN and i have little experience with POX controller but i want to do the same work(same topology , same openflow rules) done using POX controller by using another controller. Can ...
- 23