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Diffstat (limited to 'docs/report/introduction/methodology_vpp_forwarding_modes.rst')
| -rw-r--r-- | docs/report/introduction/methodology_vpp_forwarding_modes.rst | 85 |
1 files changed, 48 insertions, 37 deletions
diff --git a/docs/report/introduction/methodology_vpp_forwarding_modes.rst b/docs/report/introduction/methodology_vpp_forwarding_modes.rst index 1af3a46556..1fd902a22d 100644 --- a/docs/report/introduction/methodology_vpp_forwarding_modes.rst +++ b/docs/report/introduction/methodology_vpp_forwarding_modes.rst @@ -1,9 +1,9 @@ VPP Forwarding Modes -------------------- -VPP is tested in a number of L2 and IP packet lookup and forwarding -modes. Within each mode baseline and scale tests are executed, the -latter with varying number of lookup entries. +VPP is tested in a number of L2, IPv4 and IPv6 packet lookup and +forwarding modes. Within each mode baseline and scale tests are +executed, the latter with varying number of FIB entries. L2 Ethernet Switching ~~~~~~~~~~~~~~~~~~~~~ @@ -21,17 +21,23 @@ VPP is tested in three L2 forwarding modes: l2bd tests are executed in baseline and scale configurations: -- *l2bdbase*: low number of L2 flows (254 per direction) is switched by - VPP. They drive the content of MAC FIB size (508 total MAC entries). - Both source and destination MAC addresses are incremented on a packet - by packet basis. - -- *l2bdscale*: high number of L2 flows is switched by VPP. Tested MAC - FIB sizes include: i) 10k (5k unique flows per direction), ii) 100k - (2x 50k flows) and iii) 1M (2x 500k). Both source and destination MAC - addresses are incremented on a packet by packet basis, ensuring new - entries are learn refreshed and looked up at every packet, making it - the worst case scenario. +- *l2bdbase*: Two MAC FIB entries are learned by VPP to enable packet + switching between two interfaces in two directions. VPP L2 switching + is tested with 254 IPv4 unique flows per direction, varying IPv4 + source address per flow in order to invoke RSS based packet + distribution across VPP workers. The same source and destination MAC + address is used for all flows per direction. IPv4 source address is + incremented for every packet. + +- *l2bdscale*: A high number of MAC FIB entries are learned by VPP to + enable packet switching between two interfaces in two directions. + Tested MAC FIB sizes include: i) 10k with 5k unique flows per + direction, ii) 100k with 2 x 50k flows and iii) 1M with 2 x 500k + flows. Unique flows are created by using distinct source and + destination MAC addresses that are changed for every packet using + incremental ordering, making VPP learn (or refresh) distinct src MAC + entries and look up distinct dst MAC entries for every packet. For + details, see :ref:`packet_flow_ordering`. Ethernet wire encapsulations tested include: untagged, dot1q, dot1ad. @@ -40,34 +46,39 @@ IPv4 Routing IPv4 routing tests are executed in baseline and scale configurations: -- *ip4base*: low number of IPv4 flows (253 or 254 per direction) is routed by - VPP. They drive the content of IPv4 FIB size (506 or 508 total /32 prefixes). - Destination IPv4 addresses are incremented on a packet by packet - basis. +- *ip4base*: Two /32 IPv4 FIB entries are configured in VPP to enable + packet routing between two interfaces in two directions. VPP routing + is tested with 253 IPv4 unique flows per direction, varying IPv4 + source address per flow in order to invoke RSS based packet + distribution across VPP workers. IPv4 source address is incremented + for every packet. -- *ip4scale*: high number of IPv4 flows is routed by VPP. Tested IPv4 - FIB sizes of /32 prefixes include: i) 20k (10k unique flows per - direction), ii) 200k (2x 100k flows) and iii) 2M (2x 1M). Destination - IPv4 addresses are incremented on a packet by packet basis, ensuring - new FIB entries are looked up at every packet, making it the worst - case scenario. +- *ip4scale*: A high number of /32 IPv4 FIB entries are configured in + VPP. Tested IPv4 FIB sizes include: i) 20k with 10k unique flows per + direction, ii) 200k with 2 * 100k flows and iii) 2M with 2 * 1M + flows. Unique flows are created by using distinct IPv4 destination + addresses that are changed for every packet, using incremental or + random ordering. For details, see :ref:`packet_flow_ordering`. IPv6 Routing ~~~~~~~~~~~~ -IPv6 routing tests are executed in baseline and scale configurations: - -- *ip6base*: low number of IPv6 flows (253 or 254 per direction) is routed by - VPP. They drive the content of IPv6 FIB size (506 or 508 total /128 prefixes). - Destination IPv6 addresses are incremented on a packet by packet - basis. - -- *ip6scale*: high number of IPv6 flows is routed by VPP. Tested IPv6 - FIB sizes of /128 prefixes include: i) 20k (10k unique flows per - direction), ii) 200k (2x 100k flows) and iii) 2M (2x 1M). Destination - IPv6 addresses are incremented on a packet by packet basis, ensuring - new FIB entries are looked up at every packet, making it the worst - case scenario. +Similarly to IPv4, IPv6 routing tests are executed in baseline and scale +configurations: + +- *ip6base*: Two /128 IPv4 FIB entries are configured in VPP to enable + packet routing between two interfaces in two directions. VPP routing + is tested with 253 IPv6 unique flows per direction, varying IPv6 + source address per flow in order to invoke RSS based packet + distribution across VPP workers. IPv6 source address is incremented + for every packet. + +- *ip4scale*: A high number of /128 IPv6 FIB entries are configured in + VPP. Tested IPv6 FIB sizes include: i) 20k with 10k unique flows per + direction, ii) 200k with 2 * 100k flows and iii) 2M with 2 * 1M + flows. Unique flows are created by using distinct IPv6 destination + addresses that are changed for every packet, using incremental or + random ordering. For details, see :ref:`packet_flow_ordering`. SRv6 Routing ~~~~~~~~~~~~ |