-CSIT Release Notes\r
-==================\r
-\r
-Changes in CSIT |release|\r
--------------------------\r
-\r
-#. Naming change for all VPP performance test suites and test cases.\r
-#. VPP performance test environment changes\r
-\r
- - upgrade to Ubuntu 16.04\r
- - VM and vhost-user test environment optimizations\r
- - addition of HW cryptodev devices in LFD FD.io physical testbed\r
-\r
-#. Added tests\r
-\r
- - NICs\r
-\r
- - Intel x710 (L2 Bridge Domain switched-forwarding, vhost-user)\r
- - Cisco VIC1385 (L2 Bridge Domain switched-forwarding)\r
- - Cisco VIC1227 (L2 Bridge Domain switched-forwarding)\r
-\r
- - vhost-user tests with VM\r
-\r
- - L2 Bridge Domain switched-forwarding with Intel x710 NIC\r
- - L2 Bridge Domain switched-forwarding with VxLAN and Intel x520 NIC\r
- - L2 Bridge Domain switched-forwarding with Intel xl710 NIC\r
-\r
- - Tests with VxLAN\r
-\r
- - L2 Bridge Domain switched-forwarding with Intel x520 NIC\r
- - L2 Bridge Domain switched-forwarding with vhost-user, VM and Intel x520\r
- NIC\r
-\r
-Performance Improvements\r
-------------------------\r
-\r
-Substantial improvements in measured packet throughput, with relative increase\r
-of double-digit percentage points, have been observed in a number of CSIT\r
-|release| tests listed below. Relative improvements are calculated against the\r
-test results in CSIT rls1609 report.\r
-\r
-NDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Non-Drop Rate Throughput discovery tests:\r
-\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | Relative Improvement |\r
-+===================+=================================================================+===========+=================+======================+\r
-| L2XC | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-ndrdisc | 9.4 Mpps | 12.7 Mpps | 35% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC | 10ge2p1xl710: 64B-1t1c-eth-l2xcbase-ndrdisc | 9.5 Mpps | 12.2..12.4 Mpps | 28..30% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC dot1ad | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-ndrdisc | 7.4 Mpps | 8.8..9.0 Mpps | 19..23% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC dot1q | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-ndrdisc | 7.5 Mpps | 8.8..9.0 Mpps | 17..20% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC VxLAN | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-ndrdisc | 5.4 Mpps | 6.5 Mpps | 20% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc | 0.5 Mpps | 2.8..3.2 Mpps | 460..540% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2BD | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-ndrdisc | 7.8 Mpps | 10.4..10.6 Mpps | 33..36% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2BD-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc | 0.4 Mpps | 2.7..2.8 Mpps | 575..600% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ndrdisc | 8.7 Mpps | 9.7 Mpps | 12% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 COP | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-ndrdisc | 7.1 Mpps | 8.3..8.5 Mpps | 17..20% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 iAcl | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-ndrdisc | 6.9 Mpps | 7.6..7.8 Mpps | 10..13% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 vhost | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc | 0.3 Mpps | 2.6 Mpps | 767% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-ndrdisc | 3.0 Mpps | 7.3..7.7 Mpps | 143..157% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-\r
-PDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Partial Drop Rate thoughput discovery tests with packet Loss Tolerance of 0.5%:\r
-\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | Relative Improvement |\r
-+===================+=================================================================+===========+=================+======================+\r
-| L2XC | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-pdrdisc | 9.4 Mpps | 12.7..12.9 Mpps | 35..37% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC dot1ad | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-pdrdisc | 7.4 Mpps | 8.8..9.1 Mpps | 19..23% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC dot1q | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-pdrdisc | 7.5 Mpps | 8.8..9.0 Mpps | 17..20% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC VxLAN | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-pdrdisc | 5.4 Mpps | 6.5 Mpps | 20% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2XC-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc | 2.6 Mpps | 3.2..3.3 Mpps | 23..26% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2BD | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-pdrdisc | 7.8 Mpps | 10.6 Mpps | 36% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| L2BD-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc | 2.1 Mpps | 2.9 Mpps | 38% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-pdrdisc | 8.7 Mpps | 9.7 Mpps | 11% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 COP | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-pdrdisc | 7.1 Mpps | 8.3..8.5 Mpps | 17..20% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 vhost | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-pdrdisc | 2.0 Mpps | 2.7 Mpps | 35% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-\r
-Measured improvements are in line with VPP code optimizations listed in\r
-`VPP-17.01 release notes\r
-<https://docs.fd.io/vpp/17.01/release_notes_1701.html>`_.\r
-\r
-Additionally, vhost-VM performance improvements are due to both VPP code\r
-optimizations as well as due to the FD.io CSIT Linux KVM test environment\r
-optimizations for vhost-VM tests - see section "2.1.7. Methodology: KVM VM\r
-vhost".\r
-\r
-\r
-Other Performance Changes\r
--------------------------\r
-\r
-Other changes in measured packet throughput, with either minor relative\r
-increase or decrease, have been observed in a number of CSIT |release| tests\r
-listed below. Relative changes are calculated against the test results in CSIT\r
-rls1609 report.\r
-\r
-NDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Non-Drop Rate Throughput discovery tests:\r
-\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | Relative Change |\r
-+===================+=================================================================+===========+=================+======================+\r
-| IPv4 FIB 200k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-ndrdisc | 8.5 Mpps | 9.0 Mpps | 6% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 FIB 20k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-ndrdisc | 8.5 Mpps | 9.0..9.2 Mpps | 6..8% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 FIB 2M | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-ndrdisc | 8.5 Mpps | 7.8..8.1 Mpps | -8..-5% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 Policer | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-ndrdisc | 6.9 Mpps | 7.4..7.6 Mpps | 7..10% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 LISP | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-ndrdisc | 4.4 Mpps | 4.8 Mpps | 9% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 COP | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-ndrdisc | 6.1 Mpps | 6.1..6.5 Mpps | 0..7% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 FIB 200k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-ndrdisc | 6.5 Mpps | 5.3..5.7 Mpps | -18..-12% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 FIB 20k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-ndrdisc | 6.9 Mpps | 6.5 Mpps | -6% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 FIB 2M | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-ndrdisc | 5.3 Mpps | 4.2 Mpps | -21% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 iAcl | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-ndrdisc | 6.5 Mpps | 6.1..6.5 Mpps | -6..0% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-\r
-PDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Partial Drop Rate thoughput discovery tests with packet Loss Tolerance of 0.5%:\r
-\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | Relative Change |\r
-+===================+=================================================================+===========+=================+======================+\r
-| IPv4 FIB 200k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-pdrdisc | 8.5 Mpps | 9.0 Mpps | 6% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 FIB 20k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-pdrdisc | 8.5 Mpps | 9.0..9.2 Mpps | 6..8% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 FIB 2M | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-pdrdisc | 8.3 Mpps | 8.1 Mpps | -2% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 iAcl | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-pdrdisc | 7.1 Mpps | 7.6..7.8 Mpps | 7..10% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 Policer | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-pdrdisc | 7.1 Mpps | 7.4..7.6 Mpps | 4..7% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv4 LISP | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-pdrdisc | 4.6 Mpps | 4.8 Mpps | 9% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-pdrdisc | 7.7 Mpps | 7.3..7.7 Mpps | -5..0% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 COP | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-pdrdisc | 6.1 Mpps | 6.1..6.5 Mpps | 0..7% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 FIB 200k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-pdrdisc | 6.9 Mpps | 5.3..5.7 Mpps | -23..-17% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 FIB 20k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-pdrdisc | 6.9 Mpps | 6.5 Mpps | -6% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 FIB 2M | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-pdrdisc | 5.3 Mpps | 4.2 Mpps | -21% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-| IPv6 iAcl | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-pdrdisc | 6.5 Mpps | 6.1..6.5 Mpps | -6..0% |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------------+----------------------+\r
-\r
-Known Issues\r
-------------\r
-\r
-Here is the list of known issues in CSIT |release| for VPP performance tests:\r
-\r
-+---+-------------------------------------------------+-----------------------------------------------------------------+\r
-| # | Issue | Description |\r
-+---+-------------------------------------------------+-----------------------------------------------------------------+\r
-| 1 | Sporadic IPv4 routed-forwarding NDR discovery | Suspected issue with DPDK IPv4 checksum calculation. |\r
-| | test failures for 1518B frame size | Observed frequency: sporadic, ca. 20% to 30% of test runs. |\r
-+---+-------------------------------------------------+-----------------------------------------------------------------+\r
-| 2 | Vic1385 and Vic1227 NICs jumbo frames test | Suspected issue with VIC DPDK drivers that do not support jumbo |\r
-| | failures (9000B) | frames (dropped rx-miss). Observed frequency: 100%. |\r
-+---+-------------------------------------------------+-----------------------------------------------------------------+\r
-| 3 | Vic1385 and Vic1227 performance | Low performance of NDR results. Big difference between NDR and |\r
-| | | PDR. . |\r
-+---+-------------------------------------------------+-----------------------------------------------------------------+\r
-| 4 | Sporadic NDR discovery test failures on x520 | Suspected issue with HW settings (BIOS, FW) in LF |\r
-| | | infrastructure. Issue can't be replicated outside LF. |\r
-+---+-------------------------------------------------+-----------------------------------------------------------------+\r
-| 5 | Non-repeatible zig-zagging NDR throughput | Suspected NIC driver issue in multi-thread multi-core operation |\r
-| | results for multi-thread multi-core tests | affectin NDR throughput. Applies to XL710 and X710 NICs tested. |\r
-| | - 2t2c, 4t4c - for some tested NICs. | |\r
-+---+-------------------------------------------------+-----------------------------------------------------------------+\r
-\r
-Tests to be Added - Cryptodev\r
------------------------------\r
-\r
-DPDK Cryptodev functionality support for both SW and HW crypto devices has\r
-been introduced in VPP-17.01 release. CSIT functional and performance tests\r
-have been also developed and merged. However due to the factors beyond CSIT\r
-project control execution of those tests within the LF FD.io test environment\r
-still need to complete. Once the results become available, they will be\r
-published as an addendum to the current version of CSIT |release| report.\r
-\r
-Tests to be Added - SNAT44\r
---------------------------\r
-\r
-VPP SNAT44 functionality has been introduced in VPP-17.01 release. CSIT\r
-performance tests are still in development and integration into LFD FD.io test\r
-environment. Once the tests are fully integrated and results become available,\r
-they will be published as an addendum to the current version of CSIT |release|\r
-report.\r
+.. _vpp_performance_tests_release_notes:
+
+Release Notes
+=============
+
+Changes in |csit-release|
+-------------------------
+
+#. VPP PERFORMANCE TESTS
+
+ - **Added new performance testbed 3n-snr** (3 Node SnowRidge, with Intel
+ Atom processors), to later replace 3n-dnv and 2n-dnv (3 and 2 Node
+ Denverton) testbeds.
+
+ - **Added GTPU HW offload tests** for Intel e810 4p25ge NICs on 2n-icx
+ testbeds.
+
+ - **Added Wireguard tests** for VPP software path (3n-icx, 3n-snr
+ testbeds) and with built-in HW crypto QAT device (3n-snr testbed
+ only).
+
+ - **Reduction of tests**: Removed certain test variations executed
+ iteratively for the report (as well as in daily and weekly
+ trending) due to physical testbeds overload.
+
+#. TEST FRAMEWORK
+
+ - **CSIT test environment** version has been updated to ver. 11, see
+ :ref:`test_environment_versioning`.
+
+ - **TCP tput profiles** have to be changed, as newer TRex versions
+ are not deterministic enough when deciding when to send an ACK.
+
+ - **CSIT PAPI support**: Due to issues with PAPI performance, and
+ deprecation of VAT, VPP CLI is used in CSIT for many VPP scale
+ tests. See :ref:`vpp_known_issues`.
+
+ - **General Code Housekeeping**: Ongoing code optimizations and bug
+ fixes.
+
+#. PRESENTATION AND ANALYTICS LAYER
+
+ - **C-Dash** `performance dashboard <http://csit.fd.io/>`_ got updated UI and
+ updated backend increasing its performance and robustness.
+
+.. raw:: latex
+
+ \clearpage
+
+.. _vpp_known_issues:
+
+Known Issues
+------------
+
+New
+___
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1850 | 2n-dnv: sporadic 1518B tput tests failing to establish required sessions. |
+| | <https://jira.fd.io/browse/CSIT-1850>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `CSIT-1864 | 2n-clx: half of the packets lost on PDR tests. |
+| | <https://jira.fd.io/browse/CSIT-1864>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `CSIT-1871 | 3n-snr: 25Ge Interface goes down randomly. |
+| | <https://jira.fd.io/browse/CSIT-1871>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `CSIT-1877 | 3n-alt, 3n-tsh: VM tests failing to boot VM. |
+| | <https://jira.fd.io/browse/CSIT-1877>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Previous
+________
+
+Issues reported in previous releases which still affect the current results.
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1671 | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much |
+| | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side. |
+| +-----------------------------------------+ Currently, the time critical code uses VAT running large files with exec statements and CLI commands. |
+| | `VPP-1763 | Still, we needed to reduce the number of scale tests run to keep overall duration reasonable. |
+| | <https://jira.fd.io/browse/VPP-1763>`_ | More improvements needed to achieve sufficient configuration speed. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. |
+| | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `CSIT-1785 | NAT44ED tests failing to establish all TCP sessions. |
+| | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse |
+| +-----------------------------------------+ slow path performance than previously measured and calibrated for. |
+| | `VPP-1972 | CSIT removed the max scale NAT tests to avoid this issue. |
+| | <https://jira.fd.io/browse/VPP-1972>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `CSIT-1799 | All NAT44-ED 16M scale tests fail while setting NAT44 address range. |
+| | <https://jira.fd.io/browse/CSIT-1799>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 5 | `CSIT-1800 | All Geneve L3 mode scale tests (1024 tunnels) are failing. |
+| | <https://jira.fd.io/browse/CSIT-1800>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `CSIT-1801 | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP, |
+| | <https://jira.fd.io/browse/CSIT-1801>`_ | SRv6). |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 7 | `CSIT-1802 | AF-XDP - NDR tests failing from time to time. |
+| | <https://jira.fd.io/browse/CSIT-1802>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 8 | `CSIT-1804 | All testbeds: NDR tests failing from time to time. |
+| | <https://jira.fd.io/browse/CSIT-1804>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 9 | `CSIT-1808 | All tests with 9000B payload frames not forwarded over memif interfaces. |
+| | <https://jira.fd.io/browse/CSIT-1808>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 10 | `CSIT-1827 | 3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive |
+| | <https://jira.fd.io/browse/CSIT-1827>`_ | packet loss. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 11 | `CSIT-1835 | 3n-icx: vppecho BPS tests failing on timeout when checking hoststack finished. |
+| | <https://jira.fd.io/browse/CSIT-1835>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 12 | `CSIT-1849 | 2n-skx, 2n-clx: UDP 16m tput tests fail to create all sessions. |
+| | <https://jira.fd.io/browse/CSIT-1849>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Fixed
+_____
+
+Issues reported in previous releases which were fixed in this release:
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1834 | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch. |
+| | <https://jira.fd.io/browse/CSIT-1834>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `CSIT-1846 | 2n-skx, 2n-clx, 2n-icx: ALL 1518B TCP tput tests failing with big packet loss. |
+| | <https://jira.fd.io/browse/CSIT-1846>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `CSIT-1851 | trending regression: various icelake tests around 2202-04-15 |
+| | <https://jira.fd.io/browse/CSIT-1851>`_ | Somewhat expected consequence of a VPP usability fix, |
+| | | the previous VPP compiler version was too new for the OS used. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+.. _vpp_rca:
+
+Root Cause Analysis for Performance Changes
+-------------------------------------------
+
+List of RCAs in |csit-release| for VPP performance changes:
+
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+=====================================================================================+
+| 1 | `VPP-2030 | regression: ip6base on ICX around 2022-03-23 |
+| | <https://jira.fd.io/browse/VPP-2030>`_ | "Loads blocked due to overlapping with a preceding store that cannot be forwarded." |
+| | | started happening in ip6-lookup graph node. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| 2 | `CSIT-1852 | 2n-zn2 mellanox performance cap |
+| | <https://jira.fd.io/browse/CSIT-1852>`_ | Old issue, only now distinguished from CSIT-1751. |
+| | | This testbed+nic combination is capped below 28 Mpps, cause not identified yet. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| 3 | `CSIT-1853 | trending regression: nat44ed cps around 2202-04-01 |
+| | <https://jira.fd.io/browse/CSIT-1853>`_ | VPP change added more computation to slow path (in order to support multiple VRFs). |
+| | | Not clear if the VPP implementation is optimized enough. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+