Hello, The VPP LB is pretty much an implementation of Maglev (https://ai.google/research/pubs/pub44824).
Maglev is the consistent hashing algorithm used to generate the ’new_flow_table’. That table is used when a packet for a flow that is not known by the LB is forwarded. When that happens, the flow is added to the sticky_ht (sticky hash table), such that later packets from the same flow go to the same application server (AS). This consistent-hashing approach is the key to having the ability to have multiple LBs running in parallel, without need for synchronization. VPP LB then supports multiple encaps, like IPv4-GRE or IPv6-GRE for IPv4 or IPv6 data packet, NAT for IPv4 or IPv6 or L3DSR for IPv4 (see lb_vip_type_t enum). Cheers, - Pierre > Le 26 juin 2019 à 10:46, yangjialu...@gmail.com a écrit : > > Hi guys! Does anyone know about how the sticky_ht, buckets and the > new_flow_table work?<å±å¹å¿«ç > § 2019-06-26 16.35.44.png><å±å¹å¿«ç > § > 2019-06-26 16.35.12.png> -=-=-=-=-=-=-=-=-=-=-=- > Links: You receive all messages sent to this group. > > View/Reply Online (#13377): https://lists.fd.io/g/vpp-dev/message/13377 > Mute This Topic: https://lists.fd.io/mt/32212960/675306 > Mute #vpp: https://lists.fd.io/mk?hashtag=vpp&subid=1480735 > Group Owner: vpp-dev+ow...@lists.fd.io > Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [ppfis...@cisco.com] > -=-=-=-=-=-=-=-=-=-=-=-
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#13391): https://lists.fd.io/g/vpp-dev/message/13391 Mute This Topic: https://lists.fd.io/mt/32212960/21656 Mute #vpp: https://lists.fd.io/mk?hashtag=vpp&subid=1480452 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
