Napatech Link-Virtualization™ Software implements a multilayer virtual switch that can be configured using familiar Open vSwitch command syntax.
Configuration tasks most often use the following command line tools:
- ovs-vsctl for configuring and querying the OVSDB database. Refer to the ovs-vsctl man page for detailed command syntax and additional information.
- ovs-ofctl for managing and monitoring OpenFlow switches. Refer to the ovs-ofctl man page for detailed command syntax and additional information.
Refer to the Open vSwitch Documentation for further details.
Common ovs-vsctl bridge commands
Create a new bridge named
br0.
ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev
Delete the bridge named
br0.
ovs-vsctl del-br br0
List bridges.
ovs-vsctl list-br
Common ovs-vsctl port commands
Add physical port dpdk0 to bridge
br0.
ovs-vsctl add-port br0 dpdk0 -- set interface dpdk0 type=dpdk \ options:dpdk-devargs=class=eth,mac=<xx:xx:xx:xx:xx:xx>where:
xx:xx:xx:xx:xx:xx is the MAC of the physical port.
For more information on MAC addresses of the SmartNIC, see Reading MAC Addresses of the SmartNIC.
Add virtual port dpdkvp0 to bridge
br0.
ovs-vsctl add-port br0 dpdkvp0 -- set int dpdkvp0 type=dpdk \ options:"dpdk-devargs=0000:XX:XX.0,representor=[4]"where:
XX:XX is the PCI bus ID, found with the command lspci | grep Napatech.
List all ports on bridge
br0.
ovs-vsctl list-ports br0
Note: The local bridge
port is not included in this list.
Delete port dpdkvp1 from bridge
br0.
ovs-vsctl del-port br0 dpdkvp1
Common ovs-ofctl Commands
Delete the flow rules from the flow table of
br0.
ovs-ofctl del-flows br0
The generic template for adding a static flow table entry to a
bridge.
ovs-ofctl add-flow <bridge> in_port=<port>,actions=<action>
Add a port-to-port flow
rule.
ovs-ofctl add-flow br0 in_port=dpdk0,actions:output=dpdkvp0
Add a rule matching on input port and source IP
address.
ovs-ofctl add-flow br0 \ in_port=dpdk0,ip,udp,nw_src:16:0:0:0/24,actions:output=dpdkvp0
Configure a normal bridge mode with MAC
learning.
ovs-ofctl add-flow br0 action=normal
Display all programmed flows.
ovs-ofctl dump-flows br0
Show information on bridge
br0.
ovs-ofctl show br0