Questions tagged [ovs]

For questions about Open vSwitch (OVS), where it is an open-source implementation of a distributed virtual multilayer switch.

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OVS pop_mpls action returning invalid ethernet frames

I am currently running into walls when trying to pop an mpls label with ovs. I currently have two interfaces on one ovs instance connected to ports eth0 and eth1. I define a flow on eth0 to pop an ...
Friwi's user avatar
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1 answer
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A flow hit the OpenFlow flow table improperly

I did a small experiment by using mininet,ONOS, Iperf. I want to see flow routing according to srcIP, dstIP, UDP, dstPort. Therefore, I generated a UDP flow (srcIP=10.0.0.3, dstIP=10.0.0.2, dstPORT=...
nimdrak's user avatar
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3 votes
1 answer
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How to implement port security in SDN using pox controller and ovs?

How can I defend against DHCP starvation attacks or MAC spoofing in an SDN environment?
Waleed Allam's user avatar
1 vote
1 answer
321 views

Whats the meaning of `802.1Q tunnel customer VLAN mapping` and `802.1Q tunnel provider VLAN mapping`?

Whats the meaning of 802.1Q tunnel customer VLAN mapping and 802.1Q tunnel provider VLAN mapping? Shows 802.1Q (QinQ) tunnel information. 802.1Q tunneling allows layer 2 VPN connectivity between ...
244boy's user avatar
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4 votes
1 answer
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Scaling VXLAN tunnels in openvswitch

As we're creating a cluster of tens of KVM host nodes we've chosen openvswitch as our virtual network infrastructure. So we need to make isolated virtual networks between VMs on demand. I've seen ...
Amir K's user avatar
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2 votes
0 answers
425 views

OpenvSwitch port-security on physical interface [closed]

I want to secure ports on OVS and allow specific clients source MAC addresses to an interface, to improve security on my network, Here is my scenario: ovs box with 4 physical port, port1 connected ...
New Dude's user avatar
2 votes
2 answers
2k views

OpenvSwitch Spanning-tree priority for specific Vlan ID

I'm new to the SDN technology, I have 12 year's experience working with Cisco products, On Cisco devices, a user can set different STP priority Per VLAN ID Like : Switch(config)#spanning-tree VLAN ...
New Dude's user avatar
1 vote
0 answers
109 views

OVS and IPFIX :: Why is my bridge only exporting bridge-to-collector flows? [closed]

I’m new to OVS and trying to get IPFIX working on my OVS bridge. I’m building off the great information in this previous post: How to get ipfix working with openvswitch? The good news is I have ...
Pete's user avatar
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1 answer
397 views

Add a flow to OVSK for communication

I have created a torus topology in mininet by enabling sflow and connecting to POX controller for topology discovery. Below is the command. sudo mn --custom=sflow-rt/extras/sflow.py --link tc,bw=10 --...
Sainath's user avatar
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1 vote
1 answer
105 views

IPFIX - consider only first n seconds of a flow

Is possible to consider via IPFIX only the first n seconds of a flow (statistics)? How to set this in OpenVSwitch if possible?
232376544333's user avatar
1 vote
1 answer
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Ipfix in openvSwitch

The sampling parameter in openvswitch to enable IPFIX what it refers to? For example, a value of 1 means what? Furthermore, as the difference there is per-bridge sampling and per-flow sampling?
232376544333's user avatar