Setting The Type Of A Dual-Purpose Uplink Port - Cisco WS-C2960-24LC-S Software Configuration Manual

Configuring Ethernet Interfaces
Table 10-1
Feature
Native VLAN (for IEEE 802.1Q
trunks)
VLAN trunking
Port enable state
Port description
Speed
Duplex mode
Flow control
EtherChannel (PAgP)
Port blocking (unknown multicast
and unknown unicast traffic)
Broadcast, multicast, and unicast
storm control
Protected port
Port security
Port Fast
Auto-MDIX
Keepalive messages

Setting the Type of a Dual-Purpose Uplink Port

Some Catalyst 2960 switches support dual-purpose uplink ports. For more information, see the
"Dual-Purpose Uplink Ports" section on page
Beginning in privileged EXEC mode, follow these steps to select which dual-purpose uplink to activate so
that you can set the speed and duplex. This procedure is optional.
Command
Step 1
configure terminal
Step 2 interface interface-id
Catalyst 2960 Switch Software Configuration Guide
10-10
Default Layer 2 Ethernet Interface Configuration (continued)
Default Setting
VLAN 1.
Switchport mode dynamic auto (supports DTP).
All ports are enabled.
None defined.
Autonegotiate.
Autonegotiate.
Flow control is set to receive: off. It is always off for sent packets.
Disabled on all Ethernet ports. See
EtherChannels and Link-State Tracking."
Disabled (not blocked). See the
section on page
Disabled. See the
on page
Disabled. See the
page 19-5.
Disabled. See the
on page
Disabled. See the
Configuration" section on page
Enabled.
Note
Disabled on SFP module ports; enabled on all other ports.
Purpose
Enter global configuration mode.
Specify the dual-purpose uplink port to be configured, and enter
interface configuration mode.
Chapter 10
"Configuring Port Blocking"
19-7.
"Default Storm Control Configuration" section
19-3.
"Configuring Protected Ports" section on
"Default Port Security Configuration" section
19-10.
"Default Optional Spanning-Tree
17-9.
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.
10-4.
Configuring Interface Characteristics
Chapter 31, "Configuring
OL-8603-04