Enabling Port Negotiation On Gigabit Ethernet Ports; Disabling Port Negotiation; Configuring Errdisable State Gigabit Ethernet Port Timeout Periods - Cisco WS-C2948G-GE-TX Configuration Manual

Chapter 5 Configuring Gigabit Ethernet Switching

Enabling Port Negotiation on Gigabit Ethernet Ports

Note You cannot enable port negotiation on 1000BASE-T Gigabit Ethernet ports in this release. If a
1000BASE-T GBIC (Gigabit Interface Converter) is inserted in the port that was previously configured
as negotiation disabled, the negotiation-disabled setting is ignored and the port operates in
negotiation-enabled mode.
To enable port negotiation on a 1000BASE-X Gigabit Ethernet port, perform this task in privileged
mode:
Task
Step 1 Enable Gigabit Ethernet port negotiation.
Step 2 Verify the port negotiation configuration.
This example shows how to enable port negotiation and verify the configuration:
Console> (enable) set port negotiation 2/1 enable
Port 2/1 negotiation enabled
Console> (enable) show port negotiation 2/1
Port
-----
2/1
Console> (enable)

Disabling Port Negotiation

To disable port negotiation on a 1000BASE-X Gigabit Ethernet port, perform this task in privileged
mode:
Task
Step 1
Disable Gigabit Ethernet port negotiation.
Step 2
Verify the port negotiation configuration.
This example shows how to disable port negotiation and verify the configuration:
Console> (enable) set port negotiation 2/1 disable
Port 2/1 negotiation disabled
Console> (enable) show port negotiation 2/1
Port
-----
2/1
Console> (enable)

Configuring errdisable State Gigabit Ethernet Port Timeout Periods

For information on configuring a timeout period for ports in errdisable state, see
Ethernet and Fast Ethernet Switching."
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
Link Negotiation
----------------
enabled
Link Negotiation
----------------
disabled
Configuring Gigabit Ethernet Ports
Command
set port negotiation mod_num/port_num enable
show port negotiation [mod_num/port_num]
Command
set port negotiation mod_num/port_num disable
show port negotiation [mod_num/port_num]
Chapter 4, "Configuring
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