Interface Capacity Forecaster

Network capacity planning engine: SNMP-based time-series collection, ARIMA/Holt-Winters forecasting, capacity exhaustion prediction with confidence intervals, and automated upgrade recommendations.

cisco-ios

cisco-nxos

juniper

arista

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Capabilities

SNMP
ARIMA
Time series
Capacity
Forecast
SNMP polling async

Required inputs

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

Parameter	Type	Default	Notes
Forecast Horizon (days) forecast_days	number	30	—
Warn Util % warn_util_pct	number	70	—

Hint 1 — Name your vendors and OS versions

Mention the exact platforms you run (cisco-ios, cisco-nxos, juniper, …) so the generated analysis logic uses the right CLI/NETCONF syntax.

Hint 2 — State your real thresholds

Provide concrete values for Forecast Horizon (days), Warn Util % instead of the defaults — they shape what counts as a fault.

Hint 3 — Prioritize the checks you need

This tool can sNMP and aRIMA. 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

[INFO] Loaded 90d of interface counters (47 links)
[INFO] Linear regression + Holt-Winters seasonality applied
[CRIT] core-1 → core-2 (Et1/1): forecast 100% util in 18 days
[WARN] dc-edge Po10: forecast 82% util in 30 days
[OK]   42 links healthy through 90-day horizon