PIM Multicast Verifier

Full multicast plane verification: PIM neighbor state matrix, (S,G) and (*,G) entry audit, RP reachability and failover, MSDP peer state, IGMP group inventory, RPF check, and multicast loop detection.

cisco-ios

cisco-nxos

juniper

arista

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Capabilities

PIM
Multicast
IGMP
RP
MSDP
(*,G)

Required inputs

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

Parameter	Type	Default	Notes
Multicast Group group	string	239.1.1.1	—
Verify RP check_rp	bool	true	—

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 Multicast Group, Verify RP instead of the defaults — they shape what counts as a fault.

Hint 3 — Prioritize the checks you need

This tool can pIM and multicast. 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] PIM-SM neighbors: 14 UP / 0 DOWN
[OK]   RP 10.0.0.1 reachable from all routers
[CRIT] Group 239.1.1.1: (S,G) state missing on R5 — receiver isolated
[WARN] R8: Assert flapping on Gi0/2 (3 events in 5min)
[OK]   IGMP snooping enabled on all access VLANs