Layer 2
Network Mapping of Physical Connections
The Layer 2 module enables auto-discovery and connection of devices to the correct switch port. These Layer 2 links ensure your maps provide complete information about interconnections in your network. It has always been challenging to reliably document where equipment is connected to a switch given the growing use of wireless devices and VLANs. InterMapper combines information gained from Layer 2 and 3 to give you the confidence that your map is accurate.
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A powerful tool to view the complexity of your ever-changing network. A more accurate and complete map of connected devices. You can:
- Understand the impact of changes - A complete inventory of all equipment
- Deliver detailed visibility - Full awareness of equipment accessing your network
- Generate data for compliance - Respond to regulatory requirements
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Features and Benefits
Fully integrated with InterMapper, Layer 2 gives you a granular view of your equipment connections, enabling significant improvements in network management:
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Feature |
Benefit |
| Diagnostics |
Find the switch, port, MAC and vendor for an IP address |
Locate machines that are malfunctioning |
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List all virtual machines on the network and where they connect |
Confirm how many IP addresses belong to virtual machines |
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Determine IP address for a switch port connection |
Eliminate the need for cable tracking |
| Maintenance |
Locate all devices directly connected to a switch |
Prepare for network upgrades and maintenance |
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List all devices on a subnet and where they connect to the network |
Plan for renumbering IP addresses on a subnet |
Use Cases
Learn how to get the most out of Layer 2. The following use cases demonstrate the value of the increased visibility available with Layer 2:
- The maillog shows that a certain IP address is sending spam. You need to inspect that machine to see if it has a virus. Find the switch, port, MAC and vendor info for that computer. Trace it through the wiring closet to physically locate the room number, jack and device.
- You want to know how many of the IP addresses on your network belong to virtual machines. Using MAC addresses of known VM vendors (VMWare, Parallels, Xen, Microsoft, Virtual Box, etc.), list all the virtual machines on the network and where they connect.
- The network team is upgrading the hardware on the Acme Switch in the Library. List the devices that are directly connected to this switch.
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