Monitor Interfaces

The following steps are a general outline of how you monitor interfaces to determine the nature of interface problems. For more detailed information on a specific interface, see the corresponding monitor interfaces chapter.

Steps To Take

To monitor interfaces, follow these steps:

1. Display the status of an interface.
2. Display the status of a specific interface.
3. Display extensive status information for a specific interface.
4. Monitor statistics for an interface.

Table 4 lists and describes the operational mode commands you use to monitor interfaces.

Table 4: Commands Used To Monitor Interfaces

CLI Command	Description
show interfaces terse interface-name For example: show interfaces terse t1*	Displays summary information about the named interfaces.
show interfaces interface-name For example: show interfaces t1-x/x/x	Displays static status information about a specific interface.
show interfaces interface-name extensive For example: show interfaces t1-x/x/x extensive	Displays very detailed interface information about a specific interface.
monitor interface interface-name For example: monitor interface t1-x/x/x	Displays real-time statistics about a physical interface, updated every second.