IBM 12.1(22)EA6 User Manual

Page of 550
 
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Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
24R9746
Chapter 7      Configuring Interface Characteristics
Monitoring and Maintaining the Interfaces
Clearing and Resetting Interfaces and Counters
 lists the privileged EXEC mode clear commands that you can use to clear counters and reset 
interfaces.
To clear the interface counters shown by the show interfaces privileged EXEC command, use the clear 
counters
 privileged EXEC command. The clear counters command clears all current interface counters 
from the interface unless optional arguments are specified to clear only a specific interface type from a 
specific interface number.
Note
The clear counters privileged EXEC command does not clear counters retrieved by using Simple 
Network Management Protocol (SNMP), but only those seen with the show interfaces privileged EXEC 
command output.
This example shows how to clear and reset the counters on a port:
Switch# clear counters gigabitethernet0/17 
Clear "show interface" counters on this interface [confirm] y 
Switch#
*Sep 30 08:42:55: %CLEAR-5-COUNTERS: Clear counter on interface gigabitethernet0/17
by vty1 (171.69.115.10)
Use the clear interface or clear line privileged EXEC command to clear and reset an interface or serial 
line. Under most circumstances, you do not need to clear the hardware logic on interfaces or serial lines.
This example shows how to clear and reset a port:
Switch# clear interface gigabitethernet0/17
Shutting Down and Restarting the Interface
Shutting down an interface disables all functions on the specified interface and marks the interface as 
unavailable on all monitoring command displays. This information is communicated to other network 
servers through all dynamic routing protocols. The interface is not mentioned in any routing updates.
Beginning in privileged EXEC mode, follow these steps to shut down an interface:
Table 7-3
Clear Commands for Interfaces
Command
Purpose
clear counters [interface-id]
Clear interface counters.
clear interface interface-id
Reset the hardware logic on an interface.
clear line [number console 0 vty number]
Reset the hardware logic on an asynchronous serial line.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface {vlan vlan-id} | {{fastethernet | gigabitethernet
interface-id} | {port-channel port-channel-number}
Select the interface to be configured.
Step 3
shutdown
Shut down an interface.