Arp Implementation Procedure - Huawei Quidway S3100 Series Operation Manual

Operation Manual – ARP
Quidway S3100 Series Ethernet Switches
address-to-MAC address mapping table known as ARP mapping table, as illustrated in
Figure 1-2. An entry of an ARP mapping table contains the IP address and the MAC
address of a host recently communicating with the local host.
Entry 1
Entry 2
Entry 3
Entry 4
Entry 5
...
Entry n
Figure 1-2 An ARP table
Table 1-3 describes the APR mapping table fields.
Table 1-3 Description on the fields of an ARP table
IF index
Physical address
IP address
Type

1.1.4 ARP Implementation Procedure

The ARP mapping table of a host is empty when the host is just started up. And when a
dynamic ARP mapping entry is not in use for a specified period of time, it is removed
from the ARP mapping table so as to save the memory space and shorten the interval
for the switch to look up entries in the ARP mapping table.
IF index Physical address
Field
Index of the physical interface/port on the device owning
the physical address and IP address contained in the
entry
Physical address of the device, that is, the MAC address
IP address of the device
Entry type, which can be:
1: An entry falling out of the following three cases
2: Invalid entry
3: Dynamic entry
4: Static entry
Huawei Technologies Proprietary
IP ad dress Type
Description
1-3
Chapter 1 ARP Configuration