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Chapter 4
Configuring Ethernet, Fast Ethernet, and Gigabit Ethernet Switching
Table 4-1
configuration.
Table 4-1
Port Negotiation State
Near End
Off
On
Off
On
1. Near End refers to the local port.
2. Far End refers to the port at the other end of the link.
Default Ethernet, Fast Ethernet, and Gigabit Ethernet
Configuration
Table 4-2
Table 4-2
Feature
Port enable state
Port name
Duplex mode
Flow control (Gigabit Ethernet) Flow control set to off for receive (Rx) and desired for transmit (Tx)
Flow control (other Ethernet)
Spanning Tree Protocol (STP)
Native VLAN
Port VLAN cost
EtherChannel
Jumbo frames
78-13315-02
shows the four possible port negotiation configurations and the resulting link status for each
Port Negotiation Configuration and Possible Link Status
1
2
Far End
Off
On
On
Off
shows the Ethernet, Fast Ethernet, and Gigabit Ethernet default configuration.
Ethernet Default Configuration
Default Value
All ports are enabled
None
Flow control set to off for receive (Rx); transmit (Tx) not supported
Enabled for VLAN 1
VLAN 1
Disabled on all Ethernet ports
Disabled on all Ethernet ports
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
Default Ethernet, Fast Ethernet, and Gigabit Ethernet Configuration
Link Status
Near End
Up
Up
Up
Down
Half duplex for 10-Mbps Ethernet ports
•
Autonegotiate speed and duplex for 10/100-Mbps Fast
•
Ethernet ports
Autonegotiate duplex for 100-Mbps Fast Ethernet ports
•
Full duplex for 1000-Mbps Gigabit Ethernet ports
•
Port VLAN cost of 100 for 10-Mbps Ethernet ports
•
Port VLAN cost of 19 for 10/100-Mbps Fast Ethernet ports
•
Port VLAN cost of 19 for 100-Mbps Fast Ethernet ports
•
Port VLAN cost of 4 for 1000-Mbps Gigabit Ethernet ports
•
Far End
Up
Up
Down
Up
4-3
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Troubleshooting
