| Operation | Command | 
|---|---|
| switch#show logging | 
| Operation | Command | 
|---|---|
| Host# clear logging | |
|  Host(config)# logging on   Host(config)# no loging on  | 
	|
| Host# clear logging | 
| Operation | Command | 
|---|---|
| Host(config)# logging 192.168.0.10 | |
|  Host(config)# logging trap warnings   Host(config)# logging trap errors  | 
	|
| Host(config)#logging buffered 8192 | 
Host(config)# interface FastEthernet4/0/18 Host(config-if)# no logging event link-status Host(config-if)# no snmp trap link-status
Host(config)# interface FastEthernet4/0/18 Host(config-if)# logging event link-status Host(config-if)# snmp trap link-status
| Level | Message | Explanation | syslog | 
|---|---|---|---|
| 0 | emergencies | ||
| 1 | alerts | ||
| 2 | critical | ||
| 3 | errors | ||
| 4 | warnings | ||
| 5 | notifications | ||
| 6 | informational | ||
| 7 | debugging |