ZyXEL Communications OLT2406, User Manual

Page: 239 / 766

Chapter 27 IP Source Guard
OLT2406 User’s Guide
239
27.9.1 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 OLT receives ARP packets on each untrusted port. To open this
screen, click
Advanced Application > IP Source Guard > ARP Inspection > Configure > Port .
Figure 143 Advanced Application > IP Source Guard > ARP Inspection > Configure > Port
Syslog rate Enter the maximum number of syslog messages the OLT 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 46 on page
380 ) to use this. Enter 0 if you do not want the OLT 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 OLT sends 4
syslog messages every second.
• 6 invalid ARP packets per second, Syslog rate is 5, Log interval is 2: the OLT sends 5
syslog messages every 2 seconds.
Log interval Enter how often (1-86400 seconds) the OLT sends a batch of syslog messages to the syslog
server. Enter 0 if you want the OLT 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 OLT’s run-time memory. The OLT 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 90 Advanced Application > IP Source Guard > ARP Inspection > Configure (continued)
LABEL DESCRIPTION