T-ISP-032 · Inventory Auto-Discovery

Crawl the network from seed devices via CDP/LLDP neighbor discovery, collect hardware/serial/version facts, and reconcile the discovered topology against the source-of-truth inventory to flag drift.

Cisco IOS/XE

Cisco IOS-XR

Juniper Junos

Arista EOS

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Capabilities

CDP/LLDP neighbor crawl
Hardware/serial facts
Source-of-truth reconcile
Missing/new-device flag
Version drift detection
JSON inventory export

Required inputs

Parameters the script accepts. Defaults shown; some are vendor- or context-gated.

Parameter	Type	Default	Notes
Crawl depth max_depth	number	3	—
Discovery (cdp\|lldp\|both) protocol	string	both	—

Hint 1 — Name your vendors and OS versions

Mention the exact platforms you run (Cisco IOS/XE, Cisco IOS-XR, Juniper Junos, …) so the generated isp & peering logic uses the right CLI/NETCONF syntax.

Hint 2 — State your real thresholds

Provide concrete values for Crawl depth, Discovery (cdp|lldp|both) instead of the defaults — they shape what counts as a fault.

Hint 3 — Prioritize the checks you need

This tool can cDP/LLDP neighbor crawl and hardware/serial facts. Ask for the subset relevant to your incident to keep output focused.

Hint 4 — Describe your inventory format

Tell the assistant whether your device list is CSV, YAML, or JSON and which columns it has, so parsing matches your data.

Sample inventory schema

Authoritative shape of the device/policy data this script consumes.

No bundled inventory sample. The script accepts standard device lists (CSV/YAML) with hostname, mgmt IP, vendor, and credentials.

Expected output

Reference terminal output the script should produce — used as a stylistic and structural target.

terminal

2026-06-16 03:00:00 INFO  Crawling from 2 seeds (depth 3, both)
2026-06-16 03:00:05 INFO  Discovered 49 devices, 312 links
2026-06-16 03:00:05 WARN  2 devices not in source-of-truth: lab-sw-11, lab-sw-12
2026-06-16 03:00:05 WARN  version drift on pe-rtr-07 (17.6.3 vs SoT 17.9.1)
2026-06-16 03:00:05 INFO  Inventory written to discovered-inventory.json