3com 4210 PWR 9-Port 3CR17341-91-ME ユーザーズマニュアル

An Ethernet port has two physical link statuses: UP and Down. When the physical 
link status of an Ethernet port changes, the switch will send log to the log server, 
which in turn acts accordingly. If the status of Ethernet ports in a network changes 
frequently, large amount of log information may be sent, which increases work 
load of the log server and consumes more network resources. 

You can limit the amount of the log information sent to the log server by disabling 
the Up/Down log output function on Ethernet ports.

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By default, UP/Down log information output is enabled. 

# By default, a port is allowed to output the Up/Down log information. Execute 
the shutdown command or the undo shutdown command on Ethernet 1/0/1, 
and the system outputs Up/Down log information of Ethernet 1/0/1.

<4210> system-view

System View: return to User View with Ctrl+Z.

[4210] interface Ethernet 1/0/1

[4210-Ethernet1/0/1] shutdown

%Apr  5 07:25:37:634 2000 4210 L2INF/5/PORT LINK STATUS CHANGE:- 1 -

 Ethernet1/0/1 is DOWN

[4210-Ethernet1/0/1] undo shutdown

%Apr  5 07:25:56:244 2000 4210 L2INF/5/PORT LINK STATUS CHANGE:- 1 -

 Ethernet1/0/1 is UP

Table 67   Set the interval to perform statistical analysis on port traffic

Enter system view 

system-view 

- 

Enter Ethernet port view 

interface interface-type 
interface-number 

- 

Set the interval to perform 
statistical analysis on port 
traffic 

flow-interval interval 

Optional

By default, this interval is 300 
seconds.

Table 68   Disable UP/Down log output on a port

Enter system view

-

Enter Ethernet port view

-

Disable a port from outputting 
UP/Down Log Information

Required