Individual skill

network-bgp-diagnostics

Diagnostics-only BGP troubleshooting patterns for neighbor state, route exchange, prefix policy, AS path inspection, and safe evidence collection. Use when a BGP neighbor is down, routes are missing, or prefix policy and AS path need inspection.

skills/network-bgp-diagnostics/SKILL.md

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Nov 9, 2026

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License
MIT

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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.