# find_mac_on_switch

Find which port a MAC address is learned on for a CX switch.

Agent View of the PolicyLayer registry record for `find_mac_on_switch`. HTML page: https://policylayer.com/tools/hpe-networking-mcp/find-mac-on-switch

## Facts

- Tool: `find_mac_on_switch`
- Server: Hpe Networking (`secure-ssid/hpe-networking-mcp`) — https://policylayer.com/tools/hpe-networking-mcp.md
- Homepage: https://github.com/secure-ssid/hpe-networking-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "find_mac_on_switch",
    "arguments": {}
  }
}
```

## Why find_mac_on_switch is rated Low

This tool performs a read-only lookup of MAC address port associations on a switch. It queries existing data (which switch port has learned a given MAC address) with no side effects, no data modification, and no resource depletion. The only concern is information disclosure about network topology, which is low severity since network administrators typically have legitimate access to such diagnostics.

From the tool's own definition: "Tool description states 'Find which port a MAC address is learned on' — a query operation that retrieves information about network topology without modifying any state."

## Use case

AI agents call find_mac_on_switch to retrieve information from Hpe Networking without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Hpe Networking:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "find_mac_on_switch": {}
  }
}
```

## Other tools on Hpe Networking (594)

- `aos8_execute_migration_rollback` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/aos8-execute-migration-rollback.md
- `aos8_logout` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/aos8-logout.md
- `apstra_delete_connectivity_template` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/apstra-delete-connectivity-template.md
- `clear_alerts` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/clear-alerts.md
- `clearpass_delete_endpoint` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/clearpass-delete-endpoint.md
- `clearpass_delete_guest` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/clearpass-delete-guest.md
- `delete_aaa_profile` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-aaa-profile.md
- `delete_auth_profile` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-auth-profile.md
- `delete_auth_server` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-auth-server.md
- `delete_authz_policy` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-authz-policy.md
- `delete_config_assignment` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-config-assignment.md
- `delete_device_groups` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-device-groups.md
- `delete_device_notes` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-device-notes.md
- `delete_glp_role_assignment` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-glp-role-assignment.md
- `delete_glp_scope_group` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-glp-scope-group.md
- `delete_glp_scope_group_scopes` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-glp-scope-group-scopes.md
- `delete_gw_policy` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-gw-policy.md
- `delete_mac_registration` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-mac-registration.md
- `delete_mpsk_registration` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-mpsk-registration.md
- `delete_network_profile` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-network-profile.md
- `delete_notification_rule` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-notification-rule.md
- `delete_overlay_ssid` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-overlay-ssid.md
- `delete_report` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-report.md
- `delete_report_run` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-report-run.md
- `delete_role` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-role.md
- `delete_role_acl` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-role-acl.md
- `delete_server_group` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-server-group.md
- `delete_site_collections_bulk` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-site-collections-bulk.md
- `delete_sites_bulk` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-sites-bulk.md
- `delete_static_tag` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-static-tag.md
- …and 564 more: https://policylayer.com/tools/hpe-networking-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=hpe-networking-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/hpe-networking-mcp