FYI, I was told about the existece of IPR that looks like it could be matching some of the proposed solution on handling ESP with multiple CPUs.
https://patents.google.com/patent/GB2571576A/en The invention may be utilised where anti-replay protection is required for > packet flows, such as those using the IPSec protocol. A bit pattern from > the flow identifier may be utilised to split the received packets between > various separate packet processing entities. Each processing entity then > examines a specific quantity of the least significant bits of the sequence > number to determine whether a packet has arrived out of sequence. The flow > identifier may be derived as a function of the Security Parameters Index > (SPI) of an Encapsulating Security Payload (ESP) header and the relevant > sequence number within that header. The flow identifier may then act as an > effective SPI and may occupy the field normally reserved for the SPI. > InventorLiedes Antti-Pekka <https://patents.google.com/?inventor=Liedes+Antti-Pekka>Stenberg Markus <https://patents.google.com/?inventor=Stenberg+Markus> Current Assignee SSH Communications Security Oy Perhaps someone can reach out to SSH Communications and see about submitting any license terms that are acceptable for standards track IETF documents? Or alternatively share some prior art to the list for this patent (granted in 2018) Paul
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