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Catalyst 3560 Switch Software Configuration Guide
OL-8553-06
Chapter 11 Configuring Interface Characteristics
Configuring Ethernet Interfaces
Setting the Type of a Dual-Purpose Uplink Port
Some Catalyst 3560 switches support dual-purpose uplink ports. By default, the switch dynamically
selects the interface type that first links up. However, you can use the media-type interface configuration
command to manually select the RJ-45 connector or the SFP module connector. For more information,
see the “Dual-Purpose Uplink Ports” section on page 11-6.
Beginning i n privileged EXEC mode, follow thes e steps to select which dual-purpose up link to activate so
that you can set the speed and duplex. This procedure is optional.
Protected port Disabled (Layer 2 interfaces only). See the “Configuring Protected
Ports” section on page 24-6.
Port security Disabled (Layer 2 interfaces only). See the “Default Port Security
Configuration” section on page 24-11.
Port Fast Disabled. See the “Default Optional Spanning-Tree
Configuration” section on page 19-9.
Auto-MDIX Enabled.
Note The switch might not support a pre-standard powered
device—such as Cisco IP phones and access points that do
not fully support IEEE 802.3af—if that powered device is
connected to the switch through a crossover cable. This is
regardless of whether auto-MIDX is enabled on the switch
port.
Power over Ethernet (PoE) Enabled (auto).
Keepalive messages Disabled on SFP module ports; enabled on all other ports.
Table 11-2 Default Layer 2 Ethernet Interface Configuration (continued)
Feature Default Setting
Command Purpose
Step 1 configure terminal Enter global configuration mode.
Step 2 interface interface-id Specify the dual-purpose uplink port to be configured, and enter
interface configuration mode.