Chapter 7 Configuring Gigabit Ethernet Interfaces

Configuring a Combo Port

Verifying the Media Type

To verify the media type, use the show interface gigabitethernet command.

Following is a sample output when the media type is RJ-45:

Router# show interface gigabitethernet 0/1

GigabitEthernet0/1 is up, line protocol is up (connected)

Hardware is Gigabit Ethernet, address is 4055.398d.bd05 (bia 4055.398d.bd05)

MTU 9216 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full Duplex, 1000Mbps, link type is auto, media type is RJ45

output flow-control is unsupported, input flow-control is unsupported

Following is a sample output when fiber-optic is selected as the physical connection:

Router# show interface gigabitethernet 0/7

GigabitEthernet0/7 is up, line protocol is up (connected)

Hardware is Gigabit Ethernet, address is 4055.398d.bd0b (bia 4055.398d.bd0b)

MTU 9216 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full Duplex, 1000Mbps, link type is auto, media type is SX

output flow-control is unsupported, input flow-control is unsupported

Following is a sample output when the media type is auto-select and the interface is down:

Router# show interface gigabitethernet 0/7

GigabitEthernet0/7 is down, line protocol is down (notconnect)

Hardware is Gigabit Ethernet, address is 0000.0000.0000 (bia 0000.0000.0000)

MTU 9216 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full Duplex, 1000Mbps, link type is auto, media type is unknown output flow-control is unsupported, input flow-control is unsupported

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

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Cisco Systems A9014CFD manual Verifying the Media Type, Router# show interface gigabitethernet 0/1