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Chapter 26 IP Source Guard
XGS4700-48F User’s Guide
281
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
ARP packets on each untrusted port. To open this screen, click Advanced
Application > IP Source Guard > ARP Inspection > Configure > Port.
Figure 132 ARP Inspection Port Configure
The following table describes the labels in this screen.
Table 87 ARP Inspection Port Configure
LABEL DESCRIPTION
Port This field displays the port number. If you configure the * port, the
settings are applied to all of the ports.
Trusted State Select whether this port is a trusted port (Trusted) or an untrusted
port (Untrusted).
The Switch does not discard ARP packets on trusted ports for any
reason.
The Switch discards ARP packets on untrusted ports in the following
situations:
• The sender’s information in the ARP packet does not match any
of the current bindings.
• The rate at which ARP packets arrive is too high. You can specify
the maximum rate at which ARP packets can arrive on untrusted
ports.
Limit Rate and Burst Interval settings have no effect on trusted ports.
Rate (pps) Specify the maximum rate (1-2048 packets per second) at which
the Switch receives ARP packets from each port. The Switch
discards any additional ARP packets. Enter 0 to disable this limit.