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Date: Sun, 23 Apr 2017 13:44:51 -0400 From: Jamal Hadi Salim <jhs@...atatu.com> To: Amir Vadai <amir@...ai.me>, Stephen Hemminger <stephen@...workplumber.org> Cc: netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com> Subject: Re: [PATCH iproute2 net 3/8] tc/pedit: Introduce 'add' operation Thanks for the excellent work. On 17-04-23 08:53 AM, Amir Vadai wrote: > This command could be useful to increase/decrease fields value. > Does this contradict the "retain" feature? Example rule to retain the second nibble but set the first to 0xA (essentially it X-ORs): tc filter add dev lo parent ffff: protocol ip prio 10 \ u32 match ip dst 127.0.0.1/32 flowid 1:1 \ action pedit munge offset 0 u8 set 0x0A retain 0xF0 Mostly curious about hardware handling. cheers, jamal
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