NTP / PTP Time Sync Auditor

Clock plane integrity: NTP stratum/offset/jitter audit, PTP master/slave state, BMCA winner verification, holdover detection, asymmetric path delay, and grandmaster failover validation.

Cisco IOS/XE/XR

Juniper

Arista

Nokia SR-OS

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Capabilities

NTP stratum drift
Offset/jitter outliers
Peer reachability bitmap
PTP port state matrix
BMCA winner audit
Asymmetry detection
Holdover/free-run flag
Grandmaster failover test

Required inputs

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

Parameter	Type	Default	Notes
Max NTP offset (ms) max_offset_ms	number	50	—
Max NTP jitter (ms) max_jitter_ms	number	10	—
Min acceptable stratum min_stratum	number	4	—
Verify PTP plane check_ptp	bool	true	—
Expected PTP grandmaster expected_gm	string	00:1B:19:FF:FE:00:00:01	PTP grandmaster only relevant when PTP verification is enabled.

Hint 1 — Name your vendors and OS versions

Mention the exact platforms you run (Cisco IOS/XE/XR, Juniper, Arista, …) so the generated fault logic uses the right CLI/NETCONF syntax.

Hint 2 — State your real thresholds

Provide concrete values for Max NTP offset (ms), Max NTP jitter (ms), Min acceptable stratum instead of the defaults — they shape what counts as a fault.

Hint 3 — Prioritize the checks you need

This tool can nTP stratum drift and offset/jitter outliers. 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

TIME SYNC AUDIT — 47 devices
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

NTP PEERS:
  Device         Peer            St  Offset(ms)  Jitter(ms)  Reach
  core-rtr-01    10.0.0.1        2     0.412       0.187     377  ✓
  core-rtr-01    10.0.0.2        2     0.398       0.201     377  ✓
  core-rtr-02    10.0.0.1        2    47.220       1.412     377  ⚠ near threshold
  edge-rtr-03    pool.ntp.org    3   142.880      18.420     273  ← OFFSET+JITTER FAIL
  edge-rtr-07    (unsynced)      16    —           —         000  ← FREE-RUN