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Cisco 7200 VXR Installation and Configuration Guide
OL-5013-09
Chapter 4 Observing System Startup and Performing a Basic Configuration
Configuring a Cisco 7200 VXR Router
Debugging
Cisco IOS provides two commands to provide information on your interfaces: show interface
GigabitEthernet 0/X (where X is 1, 2, or 3) and show controllers GigabitEthernet 0/1
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 I/O controller
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.
Resetting the Interface on the NPE-G1 or NPE-G2
Should you have a problem with your interface and wish to try and reset it, use the command:
clear interface GigabitEthernet 0/X (where X is 1, 2, or 3.)
Clearing Counters on the NPE-G1 or NPE-G2
Interface counters on the NPE-G1 or NPE-G2 may be cleared (reset) by using the command:
clear counters GigabitEthernet 0/X (where X is 1, 2, or 3.)
This will not reset the interface.
Configuring 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.
Configuring ATM Interfaces
In the following example, an ATM interface in slot 1 is configured for an ATM LAN using IP. Follow
these steps to configure an ATM interface.
Step 1 Using your own addresses and mask at the setup prompts, respond to the prompts as follows:
Configuring interface parameters:
Configuring interface ATM1/0:
Is this interface in use? [yes]:
Configure IP on this interface? [yes]:
IP address for this interface: 1.1.1.10
Number of bits in subnet field [0]:
Class C network is 1.1.1.0, 0 subnet bits; mask is /24