Avaya Configuring SNMP, BOOTP, DHCP, and RARP Services Uživatelský manuál stáhnout pdf (Strana 25)

Configuring SNMP Services

1-7

Threshold Example

Suppose (while running BNX software) you want SNMP to warn you if the

number of high-priority (Priority Level 1) packets queued for transmission is

approaching the maximum number supported by an interface. This maximum

value is speciﬁed by the wfCctOptsCngcCfgQp1Threshold MIB object. Using the

threshold parameters, you set a threshold for wfCctOptsCngcCfgQp1Threshold.

For the sake of the following example, assume that

wfCctOptsCngcCfgQp1Threshold is equal to 255 (the maximum value for a

synchronous circuit).

You also set the polling interval to twenty seconds, to indicate that, every twenty

seconds, the agent should check variables for which you have conﬁgured

thresholds. You set the threshold action to Greaterthan and set the threshold levels

and severity of events to the values listed in Table 1-2.

When you add this threshold to the MIB, the agent polls the variable

wfCctOptsCngcCfgQp1Threshold every twenty seconds and responds as follows:

• If its value is greater than 102, but less than or equal to 153, the manager logs

an informational event indicating that the queue depth exceeded the low

threshold.

Table 1-1. Severity Levels for Event Messages

Severity Suggested Deﬁnition

Info Indicates routine events that require no action

Warning Indicates events that occur unexpectedly

Debug Indicates events that you use to solve network problems

Table 1-2. Example of Threshold and Severity Settings

Threshold

Level Low Medium High

Depth of

Priority 1

transmit queue

102

(40% of capacity)

153

(60% of capacity)

205

(80% of capacity)

Severity of

event

INFO INFO WARNING

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 107 108

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Avaya Configuring SNMP, BOOTP, DHCP, and RARP Services Uživatelský manuál Strana 25