Cisco 7301 Información técnica descargar pdf (Pagina 25)

GBIC(1) 1000, auto(2) full, half, auto

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a. If you are using the no negotiation auto command, the speed and duplex should be set to a value other than auto for

correct operation.

b. The only available speed in this mode is 1000 Mbps; there is no difference whether 1000 or auto is selected.

When using the SFP GBIC media, there is also the additional negotiation auto command that is used to enable the IEEE 802.1z

Gigabit Ethernet (1000 Mbps) autonegotiation protocol.

Step 2 To turn the negotiation auto feature off (it is on by default), issue the interface command no negotiation auto. This is

useful for connecting to other Gigabit Ethernet equipment that does not support 802.1z autonegotiation.

Note The negotiation auto feature is not supported when using the media type rj-45 and will be ignored if implementation

is attempted.

The media-type gbic mode will always default to 1000 Mbps. Both full-duplex and half-duplex operation are supported in this

mode.

Debug

Cisco IOS provides two commands to provide information on your interfaces: show interface GigabitEthernet 0/X (where X is

0, 1, or 2) and show controllers GigabitEthernet 0/X (where X is 0, 1, or 2).

The output of the show interface command is useful for determining the current operating mode of the interface

(speed/duplex/media-type) and the current interface statistics.

The output of the show controller command displays more information specific to the Cisco 7301 router Gigabit Ethernet

interface. For example, it shows the detected link status, speed, and duplex, and also determines the current status of

autonegotiation and the link partners’ abilities (if it is an autonegotiation-capable interface).

The show controller command also displays the current operating state of the driver and the Ethernet controller hardware. The

show controller command is a very powerful debugging aid, especially for Cisco engineers should you need help in debugging

a problem. If you have any problems with your Gigabit Ethernet interfaces, you will need to provide this information to Cisco

for analysis.

Reset the Interface

Should you have a problem with your interface and you wish to try and reset it, use the command:

clear interface GigabitEthernet 0/X (where X is 0, 1, or 2)

Clear Counters

Interface counters may be cleared (reset) by using the command:

clear counters GigabitEthernet 0/X (where X is 0, 1, or 2)

Note Using this command will not reset the interface.

Configure Port Adapter Interfaces

Following are the steps for configuring interfaces to allow communication over a LAN or WAN. To configure the interface

parameters, you need your interface network addresses and subnet mask information. Consult with your network administrator

for this information.

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