Address Resolution Protocol; Setting Arp Timeout - Huawei Quidway S1700 Series Web User Manual

Quidway S1700 Series Ethernet Switches
Web User Manual
Table 11-1 Parameters of Ping
Title
IP Address
Probe Count
Payload Size
----End

11.2 Address Resolution Protocol

Address Resolution Protocol (ARP) is used to map an IP address to a physical layer address.
When a device sends or receives a packet with an IP header, it must first resolve the
destination IP address into a MAC address. When an IP frame is received by this switch, it
first looks up the MAC address corresponding to the destination IP address in the ARP cache.
If the address is found, the switch writes the MAC address into the appropriate field in the
frame header, and forwards the frame on to the destination.
When devices receive this request, they discard it if their address does not match the
destination IP address in the message. However, if it does match, they write their own
hardware address into the destination MAC address field and send the message back to the
source hardware address.

11.2.1 Setting ARP Timeout

Use the IP > ARP (Configure General) page to specify the timeout for ARP cache entries.
To configure the timeout for the ARP cache:
1. Click IP, ARP.
2. Select Configure General from the Step List.
3. Set the timeout to a suitable value for the ARP cache.
4. Click Apply.
Figure 11-2 Setting the ARP Timeout
Issue 01 (2011-11-17)
Description
IP address of the host.
Number of packets to send. (Range: 1-16, default: 5)
Number of bytes in a packet. (Range: 32-512 bytes, default: 32)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
11 IP Configuration
108