Huawei Quidway S6500 Series - Gratuitous ARP Configuration Commands; Gratuitous-Arp-Learning Enable

Command Manual - Network Protocol
Quidway S6500 Series Ethernet Switches Chapter 2 ARP Configuration Commands
Huawei Technologies Proprietary
2-9
interface interface_name: Clear the ARP mapping entries that are related to the
specified. port, represented with interface_name= interface_type interface_num.
interface_type is port type and interface_num is port number. For details about
interface_type, interface_num and interface_name, refer to the Port Command
Manual.
Description
Using reset arp command, you can reset the ARP mapping entries.
For the related command, see arp static, display arp.
Example
# Reset the static ARP entries.
<Quidway> reset arp static
2.2 Gratuitous ARP Configuration Commands
2.2.1 gratuitous-arp-learning enable
Syntax
gratuitous-arp-learning enable
undo gratuitous-arp-learning enable
View
System view
Parameter
None
Description
Use the gratuitous-arp-learning enable command to enable gratuitous ARP packet
learning.
Use the undo gratuitous-arp-learning enable command to disable this function.
By default, gratuitous ARP packet learning is disabled.
Gratuitous ARP function is to implement the following functions by sending out
gratuitous ARP packets:
z By sending gratuitous ARP packets, network devices can figure out whether the
IP addresses of other devices conflict with its own.
z If the device which sends the gratuitous ARP packet changed its hardware
address (probably, it turns off, has its interface card changed, and then reboots),
this packet can make old hardware address in the cache of other devices update
accordingly.