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Yuriy Harhasaputriax
Yuriy Harhas
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Dash ptf overlay testplan update with new cases.
- Updated Connection tracking test plan - ENI test plan update - Vnet test plan: listed all new test cases, added tests description - Updated requirements and underlay routing dependencies. - Style minor updated Signed-off-by: Yuriy Harhas <[email protected]>
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‎test/docs/testplans/conntrack.md‎

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2. [Requirements](#requirements)
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3. [Automation](#automation)
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4. [Test Suites](#test-suites)
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- [Basic](#eni-creation)
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- [Ageing](#eni-removal)
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- [Performance](#eni-scale)
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- [Basic](#basic)
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- [Ageing](#ageing)
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- [Performance](#performance)
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# Requirements
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| Item | Expected value
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|---|---
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| Active Connections/ENI | 1M (Bidirectional)
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| CPS per card | 4M+
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| Item | Expected value |
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|:-------------------|:-------------------------|
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| Active Connections | 1M per ENI (Bidirectional, +oversubscription capabilities) |
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| CPS | 4M+ per card |
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| bg TCP flows | - |
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| bg UDP flows | - |
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**To clarify**
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1. Ageing time
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1. Each test should be executed using TCP and UDP streams.
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1. Each test should be executed for Inbound and Outbound routing scenario.
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1. So far there is **no direct API to get active connection number** or CPS. Verification might be done using indirect ways:
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- Based on packets forwarding - check whether packets are passed or dropped
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- Based on packets forwarding - check whether packets are passed or dropped
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- Based on routing and ACL counters that are incremented on slow path. So when connection is established the counters should not be incremented.
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# Test suites
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## Basic
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| # | Test case | Test Class.Method
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| --- | --- | ---
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| 1 | Basic positive TCP session verification with counters check | -
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| 2 | Basic positive UDP session verification with counters check | -
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| 3 | TCP session verification with fragmented packets | -
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| 4 | UDP session verification with fragmented packets | -
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| 5 | ICMP traffic. **to clarify** no session is expected? | -
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| 6 | Same overlay IPs but different ENIs | -
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| # | Test case purpose | Test Class.Method | Test description |
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|:---:|:------------------------------------------------------------|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| 1 | Basic positive TCP session verification with counters check for VNET Outbound Routing. | `ConnTrackOutboundSessionTest.`<br/> `connTrackOutboundTcpSessionTest` | Creates single ENI outbound configuration. Verifies connection tracking with bidirectional TCP traffic and counters verification. |
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| 2 | Basic positive TCP session verification with counters check for VNET Inbound Routing. | `ConnTrackInboundSessionTest.`<br/> `connTrackInboundTcpSessionTest` | Creates single ENI inbound configuration. Verifies connection tracking with bidirectional TCP traffic and counters verification. |
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| 3 | Basic positive UDP session verification with counters check for VNET Outbound Routing. | `ConnTrackOutboundSessionTest.`<br/> `connTrackOutboundUdpSessionTest` | Creates single ENI outbound configuration. Verifies connection tracking with bidirectional UDP traffic and counters verification. |
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| 4 | Basic positive UDP session verification with counters check for VNET Inbound Routing. | `ConnTrackInboundSessionTest.`<br/> `connTrackInboundUdpSessionTest` | Creates single ENI inbound configuration. Verifies connection tracking with bidirectional UDP traffic and counters verification. |
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| 5 | TCP session verification with fragmented packets | - | - |
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| 6 | UDP session verification with fragmented packets | - | - |
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| 7 | ICMP traffic for VNET Inbound routing. **to clarify** no session is expected? | `ConnTrackInboundSessionTest.`<br/> `connTrackInboundIcmpSessionTest` | Creates single ENI inbound configuration. Verifies connection tracking with bidirectional ICMP traffic (echo request & reply) and counters verification. |
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| 8 | ICMP traffic for VNET Outbound routing. **to clarify** | `ConnTrackOutboundSessionTest.`<br/> `connTrackOutboundIcmpSessionTest` | Creates single ENI outbound configuration. Verifies connection tracking with bidirectional ICMP traffic (echo request & reply) and counters verification. |
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| 9 | Same overlay MAC/IP but different ENI, Inbound Routing. | `ConnTrackInboundSameOverlayIpDiffEniTest.`<br/>`verifyEni0TcpSessionTest`<br/>`verifyEni0UdpSessionTest`<br/>`verifyEni1TcpSessionTest`<br/>`verifyEni1UdpSessionTest` | Creates two the same ENIs with same MAC addresses and different VNIs. Creates the same Inbound configuration for ENIs.<br/> Verifies connection tracking with bidirectional TCP & UDP traffic and counters verification. |
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| 10 | Same overlay MAC/IP but different ENI, Outbound Routing. | `ConnTrackOutboundSameOverlayIpDiffEniTest.`<br/>`verifyEni0TcpSessionTest`<br/>`verifyEni0UdpSessionTest`<br/>`verifyEni1TcpSessionTest`<br/>`verifyEni1UdpSessionTest` | Creates two the same ENIs with same MAC addresses and different VNIs. Creates the same Outbound configuration for ENIs.<br/> Verifies connection tracking with bidirectional TCP & UDP traffic and counters verification. |
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## Ageing
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| # | Test case | Test Class.Method
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| --- | --- | ---
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| 1 | Standard ageing (fully correct TCP session, session dropped immediately). | -
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| 2 | Standard ageing (fully correct UDP session, session dropped after timeout). | -
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| 3 | Custom ageing (fully correct TCP session). | -
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| 4 | Custom ageing (fully correct UDP session). | -
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| 5 | Open TCP session but no data and no FIN. | -
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| 6 | TCP session started from the middle (no SYN packet). | -
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| # | Test case purpose | Test Class.Method | Test description |
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|:---:|:-----------------------------------------------------------------------------------|:------------------------------------------------------------------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| 1 | Verify standard ageing (fully correct TCP session). | `ConnTrackInboundSessionAgeingTest.`<br/> `connTrackInboundTcpStandardAgeingTest` | Creates single ENI inbound configuration. Bidirectionally send TCP packets needed for standard TCP session start and termination.<br/> Send TCP inbound packet to verify session is terminated and packet is dropped immediately after last TCP termination packet. |
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| 2 | -//- (but VNET Outbound Routing) | `ConnTrackOutboundSessionAgeingTest.`<br/> `connTrackOutboundTcpStandardAgeingTest` | Creates single ENI outbound configuration. Bidirectionally send TCP packets needed for standard TCP session start and termination.<br/> Immediately after last TCP termination packets sends TCP outbound packet to verify session is terminated and packet dropped. |
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| 3 | Verify standard ageing (fully correct UDP session). | `ConnTrackInboundSessionAgeingTest.`<br/> `connTrackInboundUdpStandardAgeingTest` | Creates single ENI inbound configuration. Bidirectionally send UDP packets. Wait default ageing time for session termination.<br/> Send UDP packet to verify session is terminated and packet is dropped after default ageing time. |
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| 4 | -//- (but VNET Outbound Routing) | `ConnTrackOutboundSessionAgeingTest.`<br/> `connTrackOutboundUdpStandardAgeingTest` | Creates single ENI outbound configuration. Bidirectionally send UDP packets. Wait default ageing time for session termination.<br/> Immediately after default ageing time sends UDP packet to verify session is terminated and packet dropped. |
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| 5 | Verify custom ageing (fully correct TCP session). | - | - |
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| 6 | Verify custom ageing (fully correct UDP session). | - | - |
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| 7 | Verify open TCP session but no data and no FIN. | `ConnTrackInboundSessionAgeingTest.`<br/> `connTrackInboundTcpAgeingTest` | Creates single ENI inbound configuration. Bidirectionally send TCP packets needed only for TCP session start. Wait default ageing time for session termination.<br/> Immediately after default ageing time sends TCP packet to verify session is terminated and packet dropped. |
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| 8 | -//- (but VNET Outbound Routing) | `ConnTrackOutboundSessionAgeingTest`.<br/> `connTrackOutboundTcpAgeingTest` | Creates single ENI outbound configuration. Bidirectionally send TCP packets needed only for TCP session start. Wait default ageing time for session termination.<br/> Immediately after default ageing time sends TCP packet to verify session is terminated and packet dropped. |
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| 6 | Verify TCP session started from the middle (no SYN packet). | - | - |
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## Integration
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| # | Test case | Test Class.Method
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| --- | --- | ---
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| 1 | Inbound and outbound configuration in parallel | -
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| 2 | Routes update during active session | -
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| 3 | ACL update during active session | -
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| 4 | Configuration removal during active session (Route, VNET, ENI removal) | -
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| # | Test case purpose | Test Class.Method | Test description |
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|:---:|:------------------------------------------------------------------------------|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| 1 | Verify Inbound and outbound configuration in parallel | `ConnTrackInboundOutboundParallelConfigsTest.`<br/> `verifyOutboundTcpSessionTest`<br/> `verifyInboundTcpSessionTest`<br/> `verifyOutboundUdpSessionTest`<br/> `verifyOutboundUdpSessionTest` | Creates Inbound and Outbound configuration on single ENI.<br/> Verifies connection tracking with bidirectional TCP & UDP traffic and counters verification. |
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| 2 | Verify Routes update during active session | - | - |
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| 3 | Verify ACL update during active session | - | - |
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| 4 | Verify configuration removal during active session (Route, VNET, ENI removal) | - | - |
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## Performance
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**TBD**
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| # | Test case | Test Class.Method
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| --- | --- | ---
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| 1 | CPS | -
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| 2 | Max sessions per ENI. (Verify resources clean up) | -
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| 3 | Max sessions per card (multiple ENIs). (Verify resources clean up) | -
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| # | Test case | Test Class.Method | Test description |
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|:---:|:-------------------------------------------------------------------|:------------------|:-----------------|
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| 1 | CPS | - | - |
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| 2 | Max sessions per ENI. (Verify resources clean up) | - | - |
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| 3 | Max sessions per card (multiple ENIs). (Verify resources clean up) | - | - |
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## Future
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