HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Guides

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Long static ARP entries can be effective or ineffective. Ineffective long static ARP entries cannot be
used for packet forwarding. A long static ARP entry is ineffective when any of the following conditions
exists:
• The corresponding VLAN interface or output interface is down.
• The IP address in the entry conflicts with a local IP address.
• No local interface has an IP address in the same subnet as the IP address in the ARP entry.
A long static ARP entry in a VLAN is deleted if the VLAN or VLAN interface is deleted.
To configure a static ARP entry:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Configure a static ARP
entry.
• Configure a long static ARP entry:
arp static ip-address mac-address
[ vlan-id interface-type
interface-number ] [ vpn-instance
vpn-instance-name ]
• Configure a short static ARP entry:
arp static ip-address mac-address
[ vpn-instance vpn-instance-name ]
By default, no static ARP entries
exist.
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 Command Remarks
3. Enter system view.
system-view
N/A
4. Set the maximum
number of dynamic
ARP entries for the
device.
• Centralized devices in standalone
mode:
arp max-learning-number
max-number
• Distributed devices in standalone
mode/centralized devices in IRF mode:
arp max-learning-number
max-number slot slot-number [ cpu
cpu-number ]
• Distributed devices in IRF mode:
arp max-learning-number
max-number chassis chassis-number
slot slot-number [ cpu cpu-number ]
For information about the default
maximum number of dynamic
ARP entries for a device, see
Layer 3—IP Services Command
Reference.
To disable the device from
learning dynamic ARP entries,
set the number to 0.

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English