Setting The Maximum Number Of Dynamic Arp Entries For An Interface; Setting The Aging Timer For Dynamic Arp Entries - HPE FlexNetwork HSR6800 Configuration Manual

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Step
2.
Set the maximum
number of dynamic
ARP entries for the
device.
Setting the maximum number of dynamic ARP
entries for an interface
An interface can dynamically learn ARP entries. To prevent an interface from holding too many ARP
entries, you can set the maximum number of dynamic ARP entries that the interface can learn. When
the maximum number is reached, the interface stops learning ARP entries.
You can set limits for both a Layer 2 interface and the VLAN interface for a permitted VLAN on the
Layer 2 interface. The Layer 2 interface learns an ARP entry only when neither limit is reached.
The total number of dynamic ARP entries that all interfaces learn will not be larger than the maximum
number of dynamic ARP entries set for the device.
To set the maximum number of dynamic ARP entries for an interface:
Step
1.
Enter system view.
2.
Enter interface view.
3.
Set the maximum number
of dynamic ARP entries for
the interface.

Setting the aging timer for dynamic ARP entries

Each dynamic ARP entry in the ARP table has a limited lifetime, called an aging timer. The aging
timer of a dynamic ARP entry is reset each time the dynamic ARP entry is updated. A dynamic ARP
entry that is not updated before its aging timer expires is deleted from the ARP table.
To set the aging timer for dynamic ARP entries:
Step
1.
Enter system view.
2.
Set the aging timer for dynamic
ARP entries.
Command
In standalone mode:
arp max-learning-number
max-number slot slot-number
In IRF mode:
arp max-learning-number
max-number chassis chassis-number
slot slot-number
Command
system-view
interface interface-type
interface-number
arp max-learning-num
max-number
Command
system-view
arp timer aging aging-time
4
Remarks
By default, the maximum
number of dynamic ARP entries
that a device can learn is the
upper limit of the allowed value
range.
To disable the device from
learning dynamic ARP entries,
set the number to 0.
Remarks
N/A
N/A
By default, the maximum number of
dynamic ARP entries that an interface
can learn is the upper limit of the
allowed value range.
To disable the interface from learning
dynamic ARP entries, set the number
to 0.
Remarks
N/A
The default setting is 20 minutes.

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