1-7
Parameters
None
Description
Use the
display arp timer aging
command to display the setting of the ARP aging time.
Related commands:
arp timer aging
.
Examples
# Display the setting of the ARP aging time.
<Sysname> display arp timer aging
Current ARP aging time is 20 minute(s)(default)
The displayed information shows that the ARP aging time is set to 20 minutes.
gratuitous-arp period-resending enable
Syntax
gratuitous-arp period-resending enable
undo gratuitous-arp period-resending enable
View
VLAN interface view
Parameters
None
Description
Use the
gratuitous-arp period-resending enable
command to enable the VLAN interface to send
gratuitous ARP packets periodically.
Use the
undo
gratuitous-arp period-resending enable
command to disable this function.
By default, this function is enabled, the gratuitous ARP packets are sent at an interval of 30 seconds.
After you enable a VLAN interface to send gratuitous ARP packets periodically, hosts on the network will
timely update the ARP entry corresponding to the VLAN interface’s IP address, thus preventing it from
being aged out. However, this function generates a large amount of ARP packets on the network; you
can disable the VLAN interface from sending gratuitous ARP packets if receiving hosts can update a
dynamic ARP entry when half of the entry’s aging time expires.
Examples
# Disable VLAN-interface 1 on the switch from periodically sending gratuitous ARP packets.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Vlan-interface 1
[Sysname-Vlan-interface1] undo gratuitous-arp period-resending enable
Summary of Contents for 5500-EI PWR
Page 43: ...2 6...
Page 76: ...1 17...
Page 228: ...ii stp transmit limit 1 44 vlan mapping modulo 1 45 vlan vpn tunnel 1 46...
Page 477: ...5 24 Sysname vlan 2 Sysname vlan2 service type multicast...
Page 503: ...2 3 System View return to User View with Ctrl Z Sysname dot1x url http 192 168 19 23...
Page 519: ...iii...
Page 597: ...2 2 security policy server 192 168 0 1 user name format without domain...
Page 648: ...1 9 Examples Clear static ARP entries Sysname reset arp static...
Page 663: ...4 3 Sysname resilient arp interface vlan interface 2...
Page 767: ...1 28 From 12 00 Jan 1 2008 to 12 00 Jun 1 2008...
Page 1111: ...ii xmodem get 3 18...
Page 1314: ...A 44 Z...