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Diffstat (limited to 'Documentation/howto/tc-offload.rst')
| -rw-r--r-- | Documentation/howto/tc-offload.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/howto/tc-offload.rst b/Documentation/howto/tc-offload.rst index f6482c8af..681dff13e 100644 --- a/Documentation/howto/tc-offload.rst +++ b/Documentation/howto/tc-offload.rst @@ -112,3 +112,14 @@ First flow packet not processed by meter Packets that are received by ovs-vswitchd through an upcall before the actual meter flow is installed, are not passing TC police action and therefore are not considered for policing. + +Conntrack Application Layer Gateways (ALG) +++++++++++++++++++++++++++++++++++++++++++ + +TC does not support conntrack helpers, i.e., ALGs. TC will not offload flows if +the ALG keyword is present within the ct() action. However, this will not allow +ALGs to work within the datapath, as the return traffic without the ALG keyword +might run through a TC rule, which internally will not call the conntrack +helper required. + +So if ALG support is required, tc offload must be disabled. |