Build Linux Ethernet Switch

How to pfsense configure network interface as a bridge network switch.

Build linux ethernet switch.

Keep reading the rest of the series. I have a c program to sniff each and every packet that crosses my linux box. On switchdev driver initialization the driver will allocate and register a struct net device using register netdev for each enumerated physical switch port called the port netdev a port netdev is the software representation of the physical port and provides a conduit for control traffic to from the controller the kernel and the network as well as an anchor point for. C 11 can be used elsewhere.

The zerotier virtual ethernet switch core which is designed to be entirely separate from the rest of the code and able to be built as a stand alone os independent library. Do not use c 11 features in here since we want this to build on old embedded platforms that lack c 11 support. It works fine performance is ok for the management functions we need it for. Configuration ip link add name br0 type bridge ip link set dev br0 type bridge vlan filtering 1.

I could buy a managed switch and set up port spanning but i aint paying 200 s for a switch and plus gives me a chance to learn. You can get an eight port switch for about 40. You build the network by running twisted pair wires usually category 5 cables from each pc s ethernet card to this switch hub. Ip ifconfigfor interfaces ip bridge brctlfor bridging linux bonding for port trunks the switch can then accelerate what linux can do in software switchdevis the linux framework to offload features to the device.

However i need to now get my linux box to listen to every traffic in my network. The corresponding linux ethernet interface is called the master interface. The slave interfaces depend on the master interface. I have found several pcie cards which aren t going to break my budget though and i thought perhaps i could build my own switch out of a linux box and a few 10gbit pcie ports.

The cpu port is the switch port connected to an ethernet mac chip. Im interested in working with 10gbit ethernet specifically with the idea of an iscsi server. However 10gbit switches are extremely expensive. For example performance during installation was fine running the 1gb network wire speed.

Through dsa every port of a switch is handled like a normal linux ethernet interface. Linux switch support switch ports are linux network interfaces standard linux tools are used. I m running a large linux cluster enterprise for a corporate reporting system. Configure network interfaces as a bridge network switch.

Configure network interface as a bridge network switch.