Alcatel Carrier Internetworking Solutions Switch/Router 사용자 설명서

Page 11-4

The backplane threshold sets a percentage of total backplane bandwidth of the switch, 
module, or port. When backplane usage exceeds this percentage, an 

SNMP

 trap is sent.

♦ Note ♦ 

When “U-turn” switching (i.e., data enters a module 
port and is transmitted from a port on the same 
module) is employed, the backplane threshold reading 
will not be correct. Switched frames are not transmit-
ted over the backplane but are counted by health statis-
tics, causing the backplane percentage reading to be 
higher than it should be.

The miscellaneous thresholds cover consumable resources such as memory, 

VCCs

, tempera-

ture, and virtual ports. The health statistics allow you to sent a percentage the available 
resource, at which an 

SNMP

 trap is generated to alert the network administrator that the 

threshold has been exceeded. To set the threshold levels for switch bandwidth:

1. Enter 

 at a system prompt. The health menu (described above) displays.

2. Enter a 

at the health menu prompt. The following menu displays:

3. Threshold values are measured as a percentage of the total capacity of the resource. To 

change a threshold or sampling interval value, type the index for the field, followed by an 
equals sign, then the new value. For example, to change the 

to 50 percent, 

you would type the following at the prompt:

The CAM Threshold would now be set to 50 percent of its total capacity (memory).

4. When you have finished entering the new values, you must enter 

 to keep the new 

configuration settings.

♦ Note ♦ 

Changing a threshold value sets the value for all levels 
of the switch (switch, module, and port). You cannot 
set different threshold values for each level.