Cisco Explorer 4700 Installation Guide download pdf (Page 68)

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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance

OL-26645-02

Chapter 4 Configuring Virtual Contexts

Configuring Virtual Context Syslog Logging

Configuring Syslog Log Rate Limits

After configuring basic syslog characteristics (see the “Configuring Virtual Context Syslog Logging”

section on page 4-12), you can configure the log host, log messages, and log rate limits. The tabs for

these attributes appear beneath the Syslog configuration screen.

Use this procedure to limit the rate at which the ACE appliance generates messages in the syslog.

Procedure

Step 1 Choose Config > Virtual Contexts > context > System > Syslog.

The Syslog configuration screen appears.

Step 2 Click the Log Rate Limit tab.

The Log Rate Limit table appears.

Step 3 Click Add to add a new entry to this table, or select an existing entry, and then click Edit to modify it.

The Log Rate Limit configuration screen appears.

Step 4 In the Type field, indicate the method by which syslog messages are to be limited as follows:

• Choose Level to limit syslog messages by syslog level. In the Level field, select the level of syslog

messages to be sent to the syslog server, using the levels identified in Table 4-4.

• Choose Message to limit syslog messages by message identification number. In the Message Id

field, select the syslog message ID for those messages for which you want to suppress reporting.

Step 5 Check the Unlimited check box to indicate that limits are not to be applied to system message logging.

Clear the Unlimited check box to indicate that limits are to be applied to system message logging. If you

clear the Unlimited check box, the Rate and Time Interval fields appear.

Step 6 If you clear the Unlimited check box, specify the limits to apply to system message logging as follows:

a. In the Rate field, enter the number at which syslog message creation is to be limited. When this limit is

reached, the ACE appliance limits the creation of new syslog messages to be no greater than the

specified rate. Valid entries are integers from 0 to 2147483647.

b. In the Time Interval (Seconds) field, enter the length of time (in seconds) over which the system

message logs should be limited. The default time interval is one second. For example, if you enter 42 in

the Rate field and 60 in the Time Interval (Seconds) field, the ACE appliance limits the creation of syslog

messages that are sent to a maximum of 42 messages in that 60-second period. Valid entries are from 0

to 2147483647 seconds.

Step 7 Do one of the following:

• Click Deploy Now to deploy this configuration on the ACE appliance.

• Click Cancel to exit the procedure without saving your entries and to return to the Log Rate Limit

table.

• Click Add Another to save your entries and to add another entry to the Log Rate Limit table.

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Cisco Explorer 4700 Installation Guide Page 68

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