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Diffstat (limited to 'Documentation/networking/vxlan.txt')
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diff --git a/Documentation/networking/vxlan.txt b/Documentation/networking/vxlan.txt deleted file mode 100644 index c28f4989c3f0..000000000000 --- a/Documentation/networking/vxlan.txt +++ /dev/null @@ -1,51 +0,0 @@ -Virtual eXtensible Local Area Networking documentation -====================================================== - -The VXLAN protocol is a tunnelling protocol designed to solve the -problem of limited VLAN IDs (4096) in IEEE 802.1q. With VXLAN the -size of the identifier is expanded to 24 bits (16777216). - -VXLAN is described by IETF RFC 7348, and has been implemented by a -number of vendors. The protocol runs over UDP using a single -destination port. This document describes the Linux kernel tunnel -device, there is also a separate implementation of VXLAN for -Openvswitch. - -Unlike most tunnels, a VXLAN is a 1 to N network, not just point to -point. A VXLAN device can learn the IP address of the other endpoint -either dynamically in a manner similar to a learning bridge, or make -use of statically-configured forwarding entries. - -The management of vxlan is done in a manner similar to its two closest -neighbors GRE and VLAN. Configuring VXLAN requires the version of -iproute2 that matches the kernel release where VXLAN was first merged -upstream. - -1. Create vxlan device - # ip link add vxlan0 type vxlan id 42 group 239.1.1.1 dev eth1 dstport 4789 - -This creates a new device named vxlan0. The device uses the multicast -group 239.1.1.1 over eth1 to handle traffic for which there is no -entry in the forwarding table. The destination port number is set to -the IANA-assigned value of 4789. The Linux implementation of VXLAN -pre-dates the IANA's selection of a standard destination port number -and uses the Linux-selected value by default to maintain backwards -compatibility. - -2. Delete vxlan device - # ip link delete vxlan0 - -3. Show vxlan info - # ip -d link show vxlan0 - -It is possible to create, destroy and display the vxlan -forwarding table using the new bridge command. - -1. Create forwarding table entry - # bridge fdb add to 00:17:42:8a:b4:05 dst 192.19.0.2 dev vxlan0 - -2. Delete forwarding table entry - # bridge fdb delete 00:17:42:8a:b4:05 dev vxlan0 - -3. Show forwarding table - # bridge fdb show dev vxlan0 |