Arp Rate-Limit Enable; Arp Restricted-Forwarding Enable - 3Com 5500-EI PWR Reference Manual

arp rate-limit enable

Syntax
arp rate-limit enable
undo arp rate-limit enable
View
Ethernet port view
Parameters
None
Description
Use the arp rate-limit enable command to enable the ARP packet rate limit function on the port, that is,
to limit the rate of ARP packets passing through the port. If a rate (the maximum ARP packet rate is 15
pps by default) is specified, exceeding ARP packets will be discarded.
Use the undo arp rate-limit enable command to disable the ARP packet rate limit function on the port.
By default, the ARP packet rate limit function is disabled, that is, ARP packet rate is not limited on a port.
Examples
# Enable the ARP packet rate limit function on Ethernet 1/0/11.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/11
[Sysname-Ethernet1/0/11] arp rate-limit enable

arp restricted-forwarding enable

Syntax
arp restricted-forwarding enable
undo arp restricted-forwarding enable
View
VLAN view
Parameters
None
Description
Use the arp restricted-forwarding enable command to enable ARP restricted forwarding so that the
legal ARP requests received from the specified VLAN are forwarded through configured trusted ports
only, and the legal ARP responses are forwarded according to the MAC addresses in the packets, or
through trusted ports if the MAC address table contains no such destination MAC addresses.
Use the undo arp restricted-forwarding enable command to disable ARP restricted forwarding.
By default, ARP restricted forwarding is disabled.
2-7