Know what’s plugged into every port.

SwitchMiner scans your Cisco switches over SNMP and lists every device on every port: MAC address, IP address, computer name, VLAN and more. Then it exports the whole map to Excel or CSV.

Free and open source (GPLv3). Rated 4.8 out of 5 from 5 reviews on SourceForge.

Spreadsheet of scan results listing interface names such as Gi3/7, their descriptions, operational status, speed and duplex
Interface, description, status, speed and duplex
The same spreadsheet continued: admin port duplex, MTU, VLAN number and name, and voice VLAN number and name for each port
MTU, data VLAN and voice VLAN, with names

Scan results exported to Excel, shown in two halves.

From one switch address to a full port map

Give SwitchMiner a switch and it does the walking. It follows CDP to neighboring switches, so a whole closet or floor can be mapped from a single starting point.

  1. Point it at your switches

    Scan one switch, or load a text file with a batch of them. Several switches are scanned at the same time.

  2. It reads them over SNMP

    SNMP v1, v2c and v3 are supported. SwitchMiner pulls port status, VLANs and the MAC addresses on each port, then looks up IP addresses and computer names.

  3. It follows CDP neighbors

    Neighboring switches are discovered through CDP and scanned too, with no need to list them by hand.

  4. You get a spreadsheet

    Results are saved as an Excel .xlsx or a .csv file, ready to sort, filter and share.

What SwitchMiner finds on each port

The port

  • Interface name and description
  • Operational status and last change
  • Speed and duplex, operational and admin
  • Interface MTU
  • Interface errors

VLANs

  • VLAN number, data and voice
  • VLAN name, data and voice

The devices on it

  • Every MAC address, so you see the PC and the phone behind it
  • OUI manufacturer
  • IP addresses
  • DNS and NBT computer names
  • User and domain info

The neighbors

  • CDP neighbor details for uplinks and connected switches

What network engineers say

Best Cisco switch port mapping program out there! THIS ONE WORKS.

This program works - and fast.

Works great, helped me debug a switch.

Read all reviews on SourceForge

Release news

Older notes and every download are on the SourceForge news page.

  1. SwitchMiner GUI 4.20

    Added a device info sidebar and fixed various bugs.

  2. SwitchMiner GUI 4.10

    Added support for SNMP v3 and fixed various other bugs.

  3. SwitchMiner GUI 4.00

    A Win32 GUI version of the product.

Get SwitchMiner

Free for everyone, licensed under the GNU General Public License version 3. Runs on Windows.