28 Rockwell Automation Publication 1783-UM003G-EN-P - December 2012
Chapter 2 Switch Software Features
By default, the switch ports are set with the No (None) port role.
Port Roles
Port Role Description
Apply this role to ports to be connected to EtherNet/IP (Ethernet Industrial Protocol) devices. It
can be used for industrial automation devices, such as logic controllers and I/O.
• Port is set to Access mode.
• Port security allows only one MAC ID.
• Optimize queue management for CIP traffic.
Apply this role to ports to be connected to desktop devices, such as desktop computers,
workstations, notebook computers, and other client-based hosts.
• Port is set to Access mode.
• Portfast enabled.
• Port security allows only one MAC ID.
Do not apply to ports to be connected to switches, routers, or access points.
Apply this role to ports to be connected to other switches.
Port is set to Trunk mode.
Apply this role to routers or ports to be connected to Layer 3 switches with routing services
enabled.
Apply this role to ports to be connected to IP phones. A desktop device, such as a computer, can
be connected to the IP phone. Both the IP phone and the connected computer would have
network access through the port.
• Port is set to Trunk mode.
• Port security allows three MAC IDs to this port.
This role prioritizes voice traffic over general data traffic to ensure clear voice reception on the IP
phones.
Apply this role to ports to be connected to wireless access points. The access point can provide
network access to up to 30 mobile (wireless) users.
Apply this role to ports connected to multiport EtherNet/IP devices, such as multiport EtherNet/
IP devices arranged in a linear or daisy chain topology, the 1783-ETAP module (for connection to
the device port only), unmanaged switches (such as the Stratix 2000) and managed switches
with Remote Spanning Tree Protocol (RSTP) disabled.
• Port is set to Access mode.
• No port security.
• Optimized queue management for CIP traffic.
Apply this role to ports connected to computers running virtualization software. This can be used
with devices running up to two MAC addresses.
• Port is set to Access mode.
• Portfast is enabled.
• Port security allows for two MAC IDs.
Important: Do not apply the Virtual Desktop for Automation role to ports that will be connected
to switches, routers, or access points.
Apply this role to ports to be monitored by a network analyzer. For more information about port
mirroring, see Port Mirroring on page 47.
Apply this role to ports if you do not want a specialized Smartports role on the port. This role can
be used on connections to any device, including devices in the roles described above.
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