HP A5120 EI Series User Manual

9
View
System view
Default level
2: System level
Parameters
None
Description
Use the gratuitous-arp-sending enable command to enable a switch to send gratuitous ARP packets when
receiving ARP requests from another network segment.
Use the undo gratuitous-arp-sending enable command to restore the default.
By default, a switch cannot send gratuitous ARP packets when receiving ARP requests from another
network segment.
Examples
# Disable a switch from sending gratuitous ARP packets.
<Sysname> system-view
[Sysname] undo gratuitous-arp-sending enable
gratuitous-arp-learning enable
Syntax
gratuitous-arp-learning enable
undo gratuitous-arp-learning enable
View
System view
Default level
2: System level
Parameters
None
Description
Use the gratuitous-arp-learning enable command to enable the gratuitous ARP packet learning function.
Use the undo gratuitous-arp-learning enable command to disable the function.
By default, the function is enabled.
With this function enabled, a switch receiving a gratuitous ARP packet can add the source IP and MAC
addresses carried in the packet to its own dynamic ARP table if it finds that no ARP entry exists in the
cache corresponding to the source IP address of the ARP packet. If the corresponding ARP entry exists in
the cache, the switch updates the ARP entry regardless of whether this function is enabled.
Examples
# Enable the gratuitous ARP packet learning function.
<Sysname> system-view
[Sysname] gratuitous-arp-learning enable

HP A5120 EI Series Specifications

General

Uplink Ports	4 x SFP
Stacking	No
Management	CLI, Web, SNMP
Routing Protocols	RIP, OSPF
Power Supply	AC
MAC Address Table Size	16K
Dimensions	440 x 430 x 44 mm
Operating Temperature	0°C to 45°C
Operating Humidity	10% to 90% non-condensing
Model	HP A5120-24G EI Switch (JG234A)
VLANs	4094