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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 ...
1
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2
answers
74
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OpenDaylight 0.20.3 SDN RESTCONF endpoint returns 404
I am running OpenDaylight 0.20.3 on a VM and connected it to an Open vSwitch (on a Proxmox bridge) via OpenFlow (tcp:6653). The controller reports that the switch is connected, but RESTCONF endpoints ...
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69
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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 ...
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2
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121
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Add flow rules on ODL calcium release
I'm very new to sdn and virtualization world
after a lot of headache, I finally could do a successful GET request to
http://127.0.0.1:8181/rests/data/opendaylight-inventory:nodes
but when I tried ...
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1
answer
244
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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 ...
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1
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147
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Connecting local instance of OpenDaylight controller to local instance of Mininet
I have the following Mininet topology:
from mininet.net import Mininet
from mininet.node import RemoteController
from mininet.cli import CLI
def create_topology():
net = Mininet(controller=None)
...
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1
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2k
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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 ...
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1
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285
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How to get the statistics of queues for each switch with ryu controller application in python?
I need to get the queue statistics to calculate the queue length to prevent the queue from increasing the queue.
The queue length is to be calculated periodically. That's why it is necessary to write ...
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1
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445
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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:...
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1
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352
views
Why ryu OFPActionSetField did not work as an action but OFPActionOutput worked?
I am trying to write a simple ryu controller that redirect specific traffics of TCP packets and forwards all other traffics.
I built a simple topology with mininet, in which there are 3 hosts ...
1
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1
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404
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 ...
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1
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263
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How can I collect flow IP protocol from SDN Switch, am using Ryu controller
I am trying to collect flow statistics from SDN switch using the Ryu controller. I need a code on how I can collect ip_protocol from each flow using OFPFLOWSTATREQUEST AND REPLY HANDLER and save in a ...
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1
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2k
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How do you deal with a No default OpenFlow controller found for default switch?
*** No default OpenFlow controller found for default switch!
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1
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93
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Errors in building inet-3.6.0 in omnet 5.7
make: *** [Makefile:127: out/clang-debug//openflow_dbg.exe] Error 1
make: *** [Makefile:6: all] Error 2
make[1]: *** [Makefile:1190: ../out/clang-debug/src/inet/applications/packetdrill/...
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1
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173
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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 ...