Huawei AR150 series - 2.2 Installing the Device

l Setting link layer protocol parameters for interfaces to ensure that the link layer protocol
status on the interfaces is Up
l Configuring the network layer protocol on the interfaces
Data Preparation
To optimize Dynamic ARP, you need the following data.
No. Data
1 Number of the interface where dynamic ARP entries are created
2 Maximum number of ARP probes
3 Aging time of dynamic ARP entries
1.4.2 Adjusting Parameters of Dynamic ARP Entries
When the AR150/200 frequently updates ARP entries, you can shorten the aging time of dynamic
ARP entries and the interval for ARP probes and increase the number of ARP probes.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
On the AR150/200, you can adjust the parameters of parameters of dynamic ARP entries on
Ethernet interfaces, Eth-Trunk interfaces, VLANIF interfaces, and VE interfaces.
Step 3 Run:
arp expire-time expire-time
The aging time of dynamic ARP entries is set.
By default, the aging time is 1200s.
Step 4 Run:
arp detect-times detect-times
The number of ARP probes is set.
By default, the maximum number of ARP probes is 3. When the aging time of a dynamic ARP
entry is reached, the AR150/200 sends an ARP probe packet to the peer device periodically. If
the AR150/200 does not receive an ARP Reply packet from the peer device after the specified
number of ARP probes, it deletes the ARP entry.
Step 5 (Optional) Run:
arp detect-mode unicast
Huawei AR150&200 Series Enterprise Routers
Configuration Guide - IP Service 1 ARP Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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