Individual skill
network-bgp-diagnostics
Diagnostics-only BGP troubleshooting patterns for neighbor state, route exchange, prefix policy, AS path inspection, and safe evidence collection.
auc/skill_library/bundled/network-bgp-diagnostics/SKILL.md
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- Last checked
- Nov 3, 2026
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- Repository last updated
- Jul 29, 2026
- License
- MIT
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- engineering Derived category
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# Network BGP Diagnostics
Use this skill when a BGP session is down, flapping, established with missing
routes, or advertising unexpected prefixes. The default workflow is read-only
evidence collection; policy and reset actions belong in a reviewed change
window.
## When to Use
- BGP neighbors are stuck in Idle, Connect, Active, OpenSent, or OpenConfirm.
- A session is Established but expected prefixes are missing.
- A route-map, prefix-list, max-prefix limit, or AS path policy may be filtering
routes.
- You need before/after evidence for a BGP change.
- You are reviewing automation that parses BGP summary output.