Two ideas borrowed from cisco-cucm-mcp (calltelemetry/cisco-cucm-mcp,
MIT licensed): real-time device registration via RisPort70, and
exponential-backoff retry on transient HTTP 5xx errors. Both are
purpose-built for the audit use case rather than general-purpose
ports — RisPort tools exist to inform audit findings, not as a
standalone "look at my devices" interface.
Rate limit / 503 backoff (~30 lines + 3 tests):
AxlClient now mounts an HTTPAdapter with a urllib3 Retry policy
(3 retries, exponential backoff, status_forcelist=[502,503,504]).
Configurable via AXL_RATE_LIMIT_RETRIES (default 3, 0 disables).
Surfaces in connection_status() so operators can see the policy.
Closes a real reliability gap: CUCM SOAP rate-limits under load
during change windows or with multiple concurrent admins; pre-fix
any 503 was a hard failure.
RisPort70 (new src/risport.py + 2 tools + prompt update):
Hand-coded SOAP client for /realtimeservice2/services/RISService70
(avoids dragging in another zeep instance for one operation).
Reuses AXL_URL/USER/PASS env vars — RisPort lives on the same host.
New tools:
device_registration_status(device_class, status, name_filter, page_size)
device_registration_summary() — cluster-wide breakdown by class
Live-cluster verification (cucm-pub.binghammemorial.org):
Phone: 803 registered=679 unregistered=123 rejected=1
Gateway: 85 registered=41 rejected=44 ← real audit finding
SIPTrunk: 22 registered=18 unregistered=4
HuntList: 28 registered=28
H323/CTI: 0 (cluster doesn't use these)
Discovered while live-verifying: CUCM 15 wraps the RisPort response
in an extra <SelectCmDeviceResult> element inside <selectCmDeviceReturn>.
Older CUCM versions exposed the fields directly. The parser falls
back to either shape; tests cover both (test_legacy_response_shape_still_parses
asserts the older shape still works).
phone_inventory_report prompt updated:
New Step 3 — "Cross-reference with real-time registration" — recommends
device_registration_summary() + device_registration_status(status="UnRegistered")
to surface configured-but-never-registered phones (strongest orphan signal),
PartiallyRegistered phones (firewall/cert/version mismatch indicator),
and registration-state vs config-state mismatches.
Tooling delta worth noting:
AXL device count: 1,377 phones
RisPort device count: 803 phones
Delta (~574) likely templates, hidden phones, or stale config —
itself an audit finding the new tool will surface
to anyone running phone_inventory_report.
README updated:
- Added health(), device_registration_status, device_registration_summary
- Added "Scope and complement" section recommending @calltelemetry/cisco-cucm-mcp
alongside for operational debugging (logs, perfmon, packet capture,
service control). The two servers answer different questions; the LLM
with both can compose audit findings with operational state.
- Listed all 10 prompts (was 4 outdated entries).
Tests: 134 → 155 (+21).
- route_plan.py: drop `NULL AS context` from voicemail_pilot_css query.
Informix rejected it as a syntax error; the column wasn't carrying any
signal anyway, so the simpler SELECT works and matches the other
reference-point queries.
- README.md: tool table now covers all 16 tools (route_device_pool_route_groups,
route_devices_using_css, route_filters were missing).
- .gitignore: explicitly ignore .env. Already covered by ~/.gitignore_global,
but worth being self-contained — anyone cloning without the global ignore
shouldn't be one stray `git add` away from leaking AXL credentials.
Read-only MCP server for Cisco Unified CM 15 AXL — built for LLM-driven
cluster auditing, with a particular focus on the Route Plan Report:
partitions, calling search spaces, route patterns, translation patterns,
called/calling party transformations, and digit-discard instructions.
Pairs intentionally with the sibling mcp-cisco-docs server (live
cluster state + vendor docs in one LLM context).
Architecture:
- zeep SOAP client to CUCM AXL
- WSDL bootstrap from Cisco's axlsqltoolkit.zip (auto-extract on
first launch; zip is gitignored, vendor-licensed)
- SQLite response cache at ~/.cache/mcp-cucm-axl/responses/
- Schema-grounded prompts that pull chunks from the sibling
cisco-docs index (docs_loader.py)
Read-only by structural guarantee — never registers AXL write methods
(no executeSQLUpdate, no add*/update*/remove*/apply*/reset*/restart*
tools). SQL queries also client-side validated (sql_validator.py) to
begin with SELECT or WITH.
Tools exposed:
Foundational: axl_version, axl_sql, axl_list_tables,
axl_describe_table, cache_stats, cache_clear
Route plan: route_partitions, route_calling_search_spaces,
route_patterns, route_inspect_pattern,
route_lists_and_groups, route_translation_chain,
route_digit_discard_instructions
Prompts (schema-grounded):
route_plan_overview, investigate_pattern, audit_routing,
cucm_sql_help
Tests cover cache, docs_loader, normalize, sql_validator, wildcard.
