Report: Release notes jira tickets update
[csit.git] / docs / report / vpp_performance_tests / csit_release_notes.rst
index 193f685..87394ce 100644 (file)
-CSIT Release Notes\r
-==================\r
-\r
-Changes in CSIT |release| - to be updated\r
--------------------------\r
-\r
-#. VPP performance test environment changes\r
-\r
-    - further VM and vhost-user test environment optimizations - Qemu virtio queue size increased from default value of 256 to 1024\r
-    - addition of HW cryptodev devices in all three LF FD.io physical testbeds\r
-\r
-#. Added tests (to be updated)\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 - to be updated\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 rls1701 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 | VPP-17.04 | 17.01 to 17.04 |\r
-|                   |                                                                 |   [Mpps]   |  [Mpps]   |   [Mpps]  |  Improvement   |\r
-+===================+=================================================================+============+===========+===========+================+\r
-| L2XC              | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-ndrdisc                      | 9.4        | 12.7      | 13.4      | 6%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| L2XC              | 10ge2p1xl710: 64B-1t1c-eth-l2xcbase-ndrdisc                     | 9.5        | 12.2      | 12.4      | 2%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| L2XC dot1ad       | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-ndrdisc                   | 7.4        | 8.8       | 9.3       | 6%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| L2XC dot1q        | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-ndrdisc                    | 7.5        | 8.8       | 9.2       | 5%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| L2XC VxLAN        | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-ndrdisc              | 5.4        | 6.5       | 6.8       | 5%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| L2XC-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc       | 0.5        | 2.8       | 3.2       | 14%            |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| L2BD              | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-ndrdisc                | 7.8        | 10.4      | 10.8      | 4%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| L2BD-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc | 0.4        | 2.7       | 3.4       | 26%            |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| IPv4              | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ndrdisc                    | 8.7        | 9.7       | 10.6      | 9%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| IPv4 COP          | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-ndrdisc     | 7.1        | 8.3       | 9.0       | 8%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| IPv4 iAcl         | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-ndrdisc        | 6.9        | 7.6       | 8.3       | 9%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| IPv4 vhost        | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc     | 0.3        | 2.6       | 3.1       | 19%            |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+\r
-| IPv6              | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-ndrdisc                    | 3.0        | 7.3       | 8.5       | 16%            |\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 | VPP-17.04 | Relative    |\r
-|                   |                                                                 |   [Mpps]  |  [Mpps]   |   [Mpps]  | Improvement |\r
-+===================+=================================================================+===========+===========+===========+=============+\r
-| L2XC              | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-pdrdisc                      | 9.4       | 12.7      | 13.4      |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| L2XC dot1ad       | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-pdrdisc                   | 7.4       | 8.8       | 9.3       |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| L2XC dot1q        | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-pdrdisc                    | 7.5       | 8.8       | 9.5       |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| L2XC VxLAN        | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-pdrdisc              | 5.4       | 6.5       | 6.8       |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| L2XC-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc       | 2.6       | 3.2       | 3.2       |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| L2BD              | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-pdrdisc                | 7.8       | 10.6      | 11.1      |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| L2BD-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc | 2.1       | 2.9       | 3.2       |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4              | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-pdrdisc                    | 8.7       | 9.7       | 10.6      |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 COP          | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-pdrdisc     | 7.1       | 8.3       | 9.2       |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 vhost        | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-pdrdisc     | 2.0       | 2.7       | 3.2       |   %         |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-\r
-Measured improvements are in line with VPP code optimizations listed in\r
-`VPP-17.04 release notes\r
-<https://docs.fd.io/vpp/17.04/release_notes_1704.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 - to be updated\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
-rls1701 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 | VPP-17.04 | Relative    |\r
-|                   |                                                                 |   [Mpps]  |  [Mpps]   |   [Mpps]  | Change      |\r
-+===================+=================================================================+===========+===========+===========+=============+\r
-| IPv4 FIB 200k     | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-ndrdisc               | 8.5       | 9.0       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 FIB 20k      | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-ndrdisc                | 8.5       | 9.0       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 FIB 2M       | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-ndrdisc                 | 8.5       | 7.8       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 Policer      | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-ndrdisc    | 6.9       | 7.4       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 LISP         | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-ndrdisc             | 4.4       | 4.8       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 COP          | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-ndrdisc     | 6.1       | 6.1       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 FIB 200k     | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-ndrdisc               | 6.5       | 5.3       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 FIB 20k      | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-ndrdisc                | 6.9       | 6.5       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 FIB 2M       | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-ndrdisc                 | 5.3       | 4.2       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 iAcl         | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-ndrdisc        | 6.5       | 6.1       |           |  %          |\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 | VPP-17.04 | Relative    |\r
-|                   |                                                                 |   [Mpps]  |  [Mpps]   |   [Mpps]  | Change      |\r
-+===================+=================================================================+===========+===========+===========+=============+\r
-| IPv4 FIB 200k     | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-pdrdisc               | 8.5       | 9.0       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 FIB 20k      | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-pdrdisc                | 8.5       | 9.0       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 FIB 2M       | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-pdrdisc                 | 8.3       | 8.1       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 iAcl         | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-pdrdisc        | 7.1       | 7.6       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 Policer      | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-pdrdisc    | 7.1       | 7.4       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv4 LISP         | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-pdrdisc             | 4.6       | 4.8       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6              | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-pdrdisc                    | 7.7       | 7.3       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 COP          | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-pdrdisc     | 6.1       | 6.1       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 FIB 200k     | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-pdrdisc               | 6.9       | 5.3       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 FIB 20k      | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-pdrdisc                | 6.9       | 6.5       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 FIB 2M       | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-pdrdisc                 | 5.3       | 4.2       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-| IPv6 iAcl         | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-pdrdisc        | 6.5       | 6.1       |           |  %          |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+\r
-\r
-Known Issues - to be updated\r
-------------\r
-\r
-Here is the list of known issues in CSIT |release| for VPP performance tests: (to be updated)\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
-| 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
+.. _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.                            |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+