On Sun, Oct 18, 2026 at 03:45:57AM +0200, Pablo Neira Ayuso wrote:
> I don't understand the "one flowtable per class".

If the priority is a flowtable attribute, every flow in that flowtable
gets the same one. To give sip 1:3 and https 1:5, you need two
flowtables with the same devices. nf_tables rejects a device in two
flowtables of one table (nft_register_flowtable_net_hooks() returns
-EEXIST), so you also need two tables.

With the per-flow priority it is one flowtable and the rules that set
the priority today:

  udp dport 5060 meta priority set 1:3 flow add @ft
  tcp dport 443 meta priority set 1:5 flow add @ft

v4 waits until the fdb series is done.

Julius

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