Configuring A Static Arp Entry; Setting The Maximum Number Of Dynamic Arp Entries For A Device - HPE FlexNetwork HSR6800 Configuration Manual

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If the output interface is a Layer 3 Ethernet interface, the ARP entry can be directly used to
forward packets.
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If the output interface is a VLAN interface, the device sends an ARP request whose target IP
address is the IP address in the entry. If the sender IP and MAC addresses in the received ARP
reply match the static ARP entry, the device performs the following operations:
Adds the interface that received the ARP reply to the static ARP entry.
Uses the resolved static ARP entry to forward IP packets.
To communicate with a host by using a fixed IP-to-MAC mapping, configure a static ARP entry on the
device.
OpenFlow ARP entry
ARP creates OpenFlow ARP entries by learning from the OpenFlow module. An OpenFlow ARP
entry does not age out, and it cannot be updated. It can be overwritten by a static ARP entry. An
OpenFlow ARP entry can be used directly to forward packets. For more information about OpenFlow,
see OpenFlow Configuration Guide.
Rule ARP entry
ARP creates Rule ARP entries by learning from the IPoE, portal, and VXLAN modules. A Rule ARP
entry does not age out, and it cannot be updated. It can be overwritten by a static ARP entry. A Rule
ARP entry can be used directly to forward packets.
For more information about IPoE, see Layer 2—WAN Access Configuration Guide. For more
information about portal, see Security Configuration Guide. For more information about VXLAN, see
VXLAN Configuration Guide.

Configuring a static ARP entry

Static ARP entries are effective when the device functions correctly.
To configure a static ARP entry:
Step
1. Enter system view.
2. Configure a static ARP
entry.
Setting the maximum number of dynamic ARP
entries for a device
A device can dynamically learn ARP entries. To prevent a device from holding too many ARP entries,
you can set the maximum number of dynamic ARP entries that the device can learn. When the
maximum number is reached, the device stops learning ARP entries.
If you set a value lower than the number of existing dynamic ARP entries, the device does not
remove the existing entries unless they are aged out.
To set the maximum number of dynamic ARP entries for a device:
Step
1. Enter system view.
Command
system-view
arp static ip-address mac-address
[ vpn-instance vpn-instance-name ]
Command
system-view
3
Remarks
N/A
By default, no static ARP entries
exist.
Remarks
N/A