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Diffstat (limited to 'docs/vpp/configuration/dataplane/l2learn.rst')
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diff --git a/docs/vpp/configuration/dataplane/l2learn.rst b/docs/vpp/configuration/dataplane/l2learn.rst new file mode 100644 index 00000000..9812edc4 --- /dev/null +++ b/docs/vpp/configuration/dataplane/l2learn.rst @@ -0,0 +1,28 @@ +:lastproofread: 2025-09-04 + +.. _vpp_config_dataplane_l2learn: + +.. include:: /_include/need_improvement.txt + +######################### +VPP L2LEARN Configuration +######################### + +When VPP dataplane is connected to a L2 domain, it needs to learn MAC addresses of devices connected to the domain. And the amount of MAC addresses that can be learned is limited by default. + +The limit can be configured using the following command: + +.. cfgcmd:: set vpp settings l2learn limit <value> + +This parameter configures the maximum number of MAC addresses that can be learned in the L2 domain. If you have a large number of devices, you may need to increase this limit to ensure all MAC addresses can be learned. + +Potential Issues and Troubleshooting +==================================== + +Improper L2LEARN configuration can lead to various issues, including: + +- Inability to learn all MAC addresses in the L2 domain if the limit is set too low +- Increased packet loss or latency for devices that are not learned +- Overall instability of the dataplane when handling L2 traffic + +Consider increasing the L2LEARN limit if you experience issues with MAC address learning or if you have a large number of devices in the L2 domain. |