Fortville can calculate hash for packets encapsulated into different tunnels: GRE/NVGRE, VXLAN, QinQ (S-Tag + C-Tag), but at the moment current version of DPDK supports only VXLAN.
Regards, Andrey -----Original Message----- From: Yerden Zhumabekov [mailto:e_zhumabe...@sts.kz] Sent: Friday, November 14, 2014 5:21 PM To: Chilikin, Andrey; Ananyev, Konstantin; Kamraan Nasim; dev at dpdk.org Cc: Yuanzhang Hu; Zhang, Helin Subject: Re: [dpdk-dev] Load-balancing position field in DPDK load_balancer sample app vs. Hash table Thank you. And one more thing, does Fortville (or Niantic) support various L2 headers when calculating RSS hash? I mean MPLS, QinQ, etc.? 14.11.2014 22:57, Chilikin, Andrey ?????: > Fortville supports symmetrical hashing on HW level, a patch for i40e PMD was > submitted a couple of weeks ago. For Niantic you can use symmetrical rss key > recommended by Konstantin. > > Regards, > Andrey > > -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Ananyev, > Konstantin > Sent: Friday, November 14, 2014 4:50 PM > To: Yerden Zhumabekov; Kamraan Nasim; dev at dpdk.org > Cc: Yuanzhang Hu > Subject: Re: [dpdk-dev] Load-balancing position field in DPDK > load_balancer sample app vs. Hash table > >> -----Original Message----- >> From: Yerden Zhumabekov [mailto:e_zhumabekov at sts.kz] >> Sent: Friday, November 14, 2014 4:23 PM >> To: Ananyev, Konstantin; Kamraan Nasim; dev at dpdk.org >> Cc: Yuanzhang Hu >> Subject: Re: [dpdk-dev] Load-balancing position field in DPDK >> load_balancer sample app vs. Hash table >> >> I'd like to interject a question here. >> >> In case of flow classification, one might possibly prefer for packets >> from the same flow to fall on the same logical core. With this '%' >> load balancing, it would require to get the same RSS hash value for >> packets with direct (src to dst) and swapped (dst to src) IPs and >> ports. Am I correct that hardware RSS calculation cannot provide this >> symmetry? > As I remember, it is possible but you have to tweak rss key values. > Here is a paper describing how to do that: > http://www.ndsl.kaist.edu/~shinae/papers/TR-symRSS.pdf > > Konstantin > -- Sincerely, Yerden Zhumabekov State Technical Service Astana, KZ
