H3C S7500 Series Command Manual

Also see for S7500 Series: Operation manual Operation manual Operation manual Operation manual Command manual

Contents

H3C S7500 Series Command Manual Manual pdf 17 page image

Command Manual – ARPH3C S7500 Series Ethernet Switches Chapter 1 ARP Configuration Commands1-16DescriptionUse the display arp timer aging command to display the setting for ARP aging timer.Related commands: arp timer aging.Examples# Display the setting for ARP aging timer. display arp timer agingCurrent ARP aging time is 20 minute(s)(default)The above information shows that the time for ARP aging timer is 20 minutes.1.1.22 gratuitous-arp-learning enableSyntaxgratuitous-arp-learning enableundo gratuitous-arp-learning enableViewSystem viewParametersNoneDescriptionUse the gratuitous-arp-learning enable command to enable gratuitous ARP learning.Use the undo gratuitous-arp-learning enable command to disable gratuitous ARPlearning.By default, gratuitous ARP learning is disabled.With gratuitous ARP learning enabled, a switch operates as follows when receiving agratuitous ARP packet:If an ARP entry in the cache matches the packet, the switch updates the ARP entryusing the sender hardware address carried in the gratuitous ARP packet.If no ARP entry in the cache matches the packet, an ARP entry corresponding to thepacket is added to the cache.Examples# Enable gratuitous ARP learning on the switch. system-viewSystem View: return to User View with Ctrl+Z.[H3C] gratuitous-arp-learning enable

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