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Pull request overview
Updates Gateway documentation to better explain stateful NAT behavior and to add operational guidance for diagnosing Gateway issues.
Changes:
- Add a new “Flow Table and Stateful Processing” section to the Gateway user guide.
- Add a new Gateway troubleshooting page with CLI, BGP, NAT, and metrics checks.
- Extend the architecture overview with a summary of Gateway node components (dataplane/FRR/Alloy).
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| docs/user-guide/gateway.md | Documents gateway flow table behavior for stateful NAT and failover implications. |
| docs/troubleshooting/gateway.md | New runbook-style troubleshooting guide for Gateway pods, CLI, FRR/BGP, NAT, and metrics. |
| docs/architecture/overview.md | Adds a high-level description of Gateway node components and responsibilities. |
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The architecture page described Control Node and SONiC Switch components but did not mention the gateway. Add a Gateway Node Components section covering the dataplane, FRR, and Alloy pods. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Signed-off-by: Pau Capdevila <pau@githedgehog.com>
Document the gateway flow table behavior: timeout-based eviction, capacity configuration, and per-gateway state scope. This helps users understand sizing, failover implications, and the importance of keepalives for long-lived connections through stateful NAT. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Signed-off-by: Pau Capdevila <pau@githedgehog.com>
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edipascale
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Apr 17, 2026
Add troubleshooting guide covering: pod health checks, dataplane CLI usage (flow table, NAT state, flow filter, routing), FRR/BGP inspection via vtysh, common issues (traffic not flowing, NAT problems, failover), and Prometheus metrics. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Signed-off-by: Pau Capdevila <pau@githedgehog.com>
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