Arp Inspection Port Configure - ZyXEL Communications MGS-3712/MES-3728 User Manual

Table 83 ARP Inspection Configure (continued)
LABEL
Log buffer size
Syslog rate
Log interval
Apply
Cancel

26.7.1 ARP Inspection Port Configure

Use this screen to specify whether ports are trusted or untrusted ports for ARP
inspection. You can also specify the maximum rate at which the Switch receives
MES-3728 User's Guide
DESCRIPTION
Enter the maximum number (1~1024) of log messages that were
generated by ARP packets and have not been sent to the syslog
server yet. Make sure this number is appropriate for the specified
Syslog rate and Log interval.
If the number of log messages in the Switch exceeds this number,
the Switch stops recording log messages and simply starts
counting the number of entries that were dropped due to
unavailable buffer. Click Clearing log status table in the ARP
Inspection Log Status screen to clear the log and reset this
counter. See Section 26.6.2 on page
Enter the maximum number of syslog messages the Switch can
send to the syslog server in one batch. This number is expressed
as a rate because the batch frequency is determined by the Log
Interval. You must configure the syslog server
page 329) to use this. Enter 0 if you do not want the Switch to
send log messages generated by ARP packets to the syslog server.
The relationship between Syslog rate and Log interval is
illustrated in the following examples:
• 4 invalid ARP packets per second, Syslog rate is 5, Log
interval is 1: the Switch sends 4 syslog messages every
second.
• 6 invalid ARP packets per second, Syslog rate is 5, Log
interval is 2: the Switch sends 5 syslog messages every 2
seconds.
Enter how often (1-86400 seconds) the Switch sends a batch of
syslog messages to the syslog server. Enter 0 if you want the
Switch to send syslog messages immediately. See Syslog rate
for an example of the relationship between Syslog rate and Log
interval.
Click Apply to save your changes to the Switch's run-time
memory. The Switch loses these changes if it is turned off or loses
power, so use the Save link on the top navigation panel to save
your changes to the non-volatile memory when you are done
configuring.
Click this to reset the values in this screen to their last-saved
values.
Chapter 26 IP Source Guard
254.
(Chapter 36 on
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