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Diffstat (limited to 'docs/_include/interface-xdp.txt')
| -rw-r--r-- | docs/_include/interface-xdp.txt | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/docs/_include/interface-xdp.txt b/docs/_include/interface-xdp.txt deleted file mode 100644 index cee9933b..00000000 --- a/docs/_include/interface-xdp.txt +++ /dev/null @@ -1,32 +0,0 @@ -.. cfgcmd:: set interfaces {{ var0 }} <interface> xdp - - Enable support for Linux :abbr:`XDP (eXpress Data Path)` on recent 1.4 rolling - releases. You must enable it for every interface which should participate in - the XDP forwarding. - - XDP is an eBPF based high performance data path merged in the Linux kernel - since version 4.8. The idea behind XDP is to add an early hook in the RX path - of the kernel, and let a user supplied eBPF program decide the fate of the - packet. The hook is placed in the NIC driver just after the interrupt - processing, and before any memory allocation needed by the network stack - itself, because memory allocation can be an expensive operation. - - .. warning:: This is highly experimental! - - .. note:: Enabling this feature will break any form of NAT or Firewalling on - this interface, as XDP is handled way earlier in the driver then iptables/ - nftables. - - Enabling this feature will only load the XDP router code as described here: - - .. stop_vyoslinter - - https://blog.apnic.net/2020/04/30/how-to-build-an-xdp-based-bgp-peering-router/ - - .. start_vyoslinter - - Example: - - .. code-block:: none - - set interfaces {{ var0 }} {{ var1 }} xdp |