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Questions tagged [sdn]

Software-defined networking (SDN)

Software-defined networking (SDN) is an approach to computer networking which evolved from work done at UC Berkeley and Stanford University around 2008. SDN allows network administrators to manage network services through abstraction of lower level functionality. This is done by decoupling the system that makes decisions about where traffic is sent (the control plane) from the underlying systems that forward traffic to the selected destination (the data plane). (source)

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Which bits in a IP or TCP header can be treated as custom bit to convey information to the controller?

I am working with SDN floodlight controller and python sockets. I need 2 bits in the header field of tcp or ip header that I can use, header field that I can modify and set as I want. I want to send packets with a custom field (2 bits or more) in…
Hanzala Jamash
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Network Security with Miniet

"develop a secure network using SDN" this is my objective therefore i am useing mininet/onos & python, i have created the topology using below python script, but i don't know the python codes for secure network to mitigate DDoS Attack, IP Spoofing,…
shiyam89
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Which dpdk version is suitable for --- Intel Corporation "82541PI" (NIC) Gigabit Ethernet Controller (rev 05) and i am running dpdk on ubuntu 18.04

I am trying to run dpdk(19 or latest version) on ubuntu host which is having two NIC(Intel). But i can see only one port, i mean to say dpdk detecting only one NIC. The NIC (Intel Corporation "82541PI" Gigabit Ethernet Controller (rev 05)) which is…
Vijay Kumar
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mininet call unknown host while pinging using ping6

I use mininet and odl,but in mininet ,when I use ping6 like below: mininet>h1 ping6 h2 mininet>unknown host I changed odl to Ryu.It is same. What could be the issue?
刘泽权
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How to collect logs such as RTT and Avg RTT on Mininet?

Can anybody please guide me on how we can get logs for RTT and Avg RTT on Mininet while using custom topology code provided in examples. Hoping for your response .
TheICQ
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Make Custom Topology with Ryu Controller and Python

I want to create custom topology with custom routing in SDN. I make it with miniedit in SDN hub tutorial but i want to make custom routing. For example i have three switches that connect hosts to each switch. I send packet from host1 to host 3 only…
user1548471
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