3Com Switch 7750 Configuration Guide

576 CHAPTER 54: ARP CONFIGURATION
Configuration Tasks
Adding a Static ARP
Entry Manually
c
CAUTION:
■ Static ARP entries are valid as long as the Ethernet switch operates normally,
unless they are removed as the results of some operations, like
changing/removing a VLAN interface, removing a VLAN, and removing a port
from a VLAN.
■ The VLAN specified by the vlan-id argument in the arp static command must
be an existing VLAN, and the port specified by the interface-type and
interface-number arguments must belong to the VLAN.
Configuring the
Maximum Number of
ARP Entries that Can Be
Learnt
Table 448 ARP configuration tasks
Configuration task Description Related section
Add a static ARP entry
manually
Optional “Adding a Static ARP Entry
Manually” on page 576
Configure the maximum
number of ARP entries that
can be learnt
Optional “Configuring the Maximum
Number of ARP Entries that
Can Be Learnt” on page 576
Configure the aging timer for
dynamic ARP entries
Optional “Configuring the Aging Time
for Dynamic ARP Entries” on
page 577
Configure ARP entry checking Optional “Configuring ARP Entry
Checking” on page 577
Enabling ARP forwarding in
the protocol-based VLAN
Optional “Enabling ARP Forwarding in
the Protocol-Based VLAN” on
page 577
Configure gratuitous ARP Optional “Configuring Gratuitous
ARP” on page 578
Configure ARP attack
detection
Optional “Configuring ARP Attack
Detection” on page 578
Configure ARP packet rate
limit
Optional “Configuring ARP Packet Rate
Limit” on page 578
Configure ARP source
suppression
Optional “Configuring ARP Source
Suppression” on page 579
Table 449 Add a static ARP entry manually
Operation Command Description
Enter system view system-view -
Add a static ARP entry
manually
arp static ip-address
mac-address [ vlan-id
interface-type
interface-number ]
Required
By default, there is no static ARP entry in
the ARP table, and ARP entries are
dynamically created by ARP.
Table 450 Configure the maximum number of ARP entries that can be learnt on a port
Operation Command Description
Enter system view system-view -
Configure the total maximum
number of ARP entries
arp max-entry number Optional
It is 8192 by default.