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Update HA doc.
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@r12f
r12f committed Mar 7, 2024
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22 changes: 11 additions & 11 deletions documentation/high-avail/ha-api-hld.md
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Original file line number Diff line number Diff line change
Expand Up @@ -411,17 +411,17 @@ sequenceDiagram
SDN->>S0N: Create ENI with HA set ID as dead state
SDN->>S1N: Create ENI with HA set ID as dead state
S0N->>S0D: Create ENI with HA set ID as dead role<br>(sai: create_eni)
S1N->>S1D: Create ENI with HA set ID as dead role<br>(sai: create_eni)
S0N->>S0D: Create ENI with HA set ID as dead role<br>(sai: create_ha_scope / create_eni)
S1N->>S1D: Create ENI with HA set ID as dead role<br>(sai: create_ha_scope / create_eni)
Note over SDN,S1D: SDN controller programs the SDN policy for both ENI.
SDN->>S0N: Update ENI with desired state as active.
SDN->>S1N: Update ENI with desired state as empty.
Note over S0N,S1N: hamgrd driving HA state machine
S1N->>S1D: Update ENI with standby role.<br>(sai: set_eni_attribute)
S1N->>S1D: Update ENI HA scope with standby role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive<br>HA state machine
S0N->>S0D: Update ENI with active role.<br>(sai: set_eni_attribute)
S0N->>S0D: Update ENI HA scope with active role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive HA<br>state machine and update<br>nexthop on all switches.
```
Expand All @@ -448,11 +448,11 @@ sequenceDiagram
SDN->>S1N: Update ENI with desired state as active.
Note over S0N,S1N: hamgrd gets approval from<br>upstream service and drives<br>HA state machine
S1N->>S1D: Update ENI with SwitchingToActive role.<br>(sai: set_eni_attribute)
S1N->>S1D: Update ENI HA scope with SwitchingToActive role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive<br>HA state machine
S0N->>S0D: Update ENI with standby role.<br>(sai: set_eni_attribute)
S0N->>S0D: Update ENI HA scope with standby role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive<br>HA state machine
S1N->>S1D: Update ENI with active role.<br>(sai: set_eni_attribute)
S1N->>S1D: Update ENI HA scope with active role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive<br>HA state machine and<br>update nexthop on all switches.
```
Expand All @@ -477,7 +477,7 @@ sequenceDiagram
S0N->>S0N: PMON detects DPU0 is dead.
Note over S0N,S1N: hamgrd receives the health<br>signal and drives HA state<br>machine
S1N->>S1D: Update ENI with Standalone role.<br>(sai: set_eni_attribute)
S1N->>S1D: Update ENI HA scope with Standalone role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive<br>HA state machine and<br>update nexthop on all switches.
```
Expand Down Expand Up @@ -505,12 +505,12 @@ sequenceDiagram
Note over S0D,S1D: DPU starts data path probe to peer DPU.
SDN->>S1N: Reconcile SDN policy for the new DPU.
S1N->>S1D: Create ENI with HA set ID as dead role<br>(sai: create_eni)
S1N->>S1D: Create ENI with HA set ID as dead role<br>(sai: create_ha_scope / create_eni)
Note over S0N,S1N: hamgrd driving HA state machine.
S1N->>S1D: Update ENI with standby role.<br>(sai: set_eni_attribute)
S1N->>S1D: Update ENI HA scope with standby role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive<br>HA state machine
S0N->>S0D: Update ENI with active role.<br>(sai: set_eni_attribute)
S0N->>S0D: Update ENI HA scope with active role.<br>(sai: set_ha_scope_attribute)
Note over S0N,S1N: hamgrd continue to drive HA<br>state machine and update<br>nexthop on all switches.
```

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