Displaying And Maintaining Arp Configuration - 3Com 7757 Configuration Manual

Configuring ARP Source
Suppression
Displaying and
Maintaining ARP
Configuration
Table 457 Configure the ARP packet rate limit function
Operation
Configure the maximum ARP
packet receive rate on the
port
Configure the port state
auto-recovery interval
Configure the port as a
trusted port for ARP packet
rate limit
By setting the maximum numbers of ARP packets of different types that can be
sent to the CPU in a unit of time, you can protect the CPU from being attacked by
illegal ARP packets.
Table 458 Configure ARP source suppression
Operation
Enter system view
Configure the maximum
number of ARP packets
of a type that can be sent
to the CPU in a unit of
time
After the above configuration, execute the display command in any view to
display and verify the ARP configuration.
Execute the reset command in user view to clear ARP entries.

Displaying and Maintaining ARP Configuration

Command
arp rate-limit rate
arp protective-down
recover interval time
arp rate-limit trust
Command
system-view
arp source-suppression
limit { total | local |
through } limit-value
Description
Optional
By default, the maximum ARP
packet receive rate on a port
is 15pps.
Optional
300 seconds by default.
Optional
By default, the port is an
untrusted port.
Description
-
Optional
The default value varies with the type
of ARP packets
When total is adopted, the
■
default value is 100.
When local is adopted, the
■
default value is 3.
When through is adopted, the
■
default value is 3.
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