Arp Implementation Procedure - Huawei Quidway S3900 Series Operation Manual

Operation Manual – ARP
Quidway S3900 Series Ethernet Switches-Release 1510
mapping table. S3900 series Ethernet switches provide the display arp command to
display the information about ARP mapping entries. Figure 1-2 shows the structure of
an ARP mapping table.
Entry 1
Entry 2
Entry 3
Entry 4
Entry 5
...
Entry n
Figure 1-2 An ARP mapping 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. For details, refer to Figure
1-3.
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 address Type
Description
1-3
Chapter 1 ARP Configuration