ZyXEL GS1920 Series User Guide - Page 216

ARP Inspection Port Con

Page 216 highlights

Chapter 25 IP Source Guard Table 99 Advanced Application > IP Source Guard > ARP Inspection > Configure (continued) LABEL Syslog rate DESCRIPTION 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 (Chapter 40 on page 328) 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: Log interval Apply Cancel • 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. 25.9.1 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 ARP packets on each untrusted port. To open this screen, click Advanced Application > IP Source Guard > ARP Inspection > Configure > Port. GS1920 Series User's Guide 216

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Chapter 25 IP Source Guard
GS1920 Series User’s Guide
216
25.9.1
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 ARP packets on each untrusted port.
To
open this screen, click
Advanced Application > IP Source Guard > ARP Inspection >
Configure > Port
.
Syslog rate
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
(Chapter 40
on page 328)
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.
Log interval
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
.
Apply
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.
Cancel
Click this to reset the values in this screen to their last-saved values.
Table 99
Advanced Application > IP Source Guard > ARP Inspection > Configure
(continued)
LABEL
DESCRIPTION