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2–7 min

T-ISP-015 · Carrier Ethernet / VPLS Service Validator

Validate L2VPN/VPLS and EVPN-based Carrier Ethernet services: pseudowire/VC status, MAC table health, split-horizon group integrity, MTU consistency, and per-service flap detection.

Cisco IOS-XR
Cisco IOS/XE
Juniper Junos
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Capabilities

  • PW/VC status check
  • VPLS MAC table health
  • Split-horizon integrity
  • MTU consistency audit
  • EVPN ES/DF awareness
  • Per-service flap detection

Required inputs

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

ParameterTypeDefaultNotes
VPLS/VC ID
service_id
number5000—
Expected MTU
expected_mtu
number9000—

Hint 1 — Name your vendors and OS versions

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

Hint 2 — State your real thresholds

Provide concrete values for VPLS/VC ID, Expected MTU instead of the defaults — they shape what counts as a fault.

Hint 3 — Prioritize the checks you need

This tool can pW/VC status check and vPLS MAC table health. 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
2026-06-15 16:10:00 INFO  Validating VPLS instance 5000
2026-06-15 16:10:01 INFO  PE-rtr-01: 3/3 pseudowires UP, 412 MACs learned
2026-06-15 16:10:01 WARN  PE-rtr-02: MTU 1500 (expected 9000) on VC 5000