+| 3 | `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. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| 4 | `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. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+