3com 2948-SFP Plus User Guide

C

HAPTER9: 

C

ONFIGURING 

IP

 AND

 MAC A

DDRESS

 I

NFORMATION

 

Remove — Removes a specific ARP entry. The possible field values  

 

are:

 

  Checked — Removes the selected ARP entries.                       

 

  Unchecked — Maintains the current ARP entries.

 

Interface — Indicates the VLAN for which ARP parameters are     

 

defined.

 

IP Address — Indicates the station IP address which is associated  

 

with the MAC address.

 

MAC Address — Displays the station MAC address, which is        

 

associated in the ARP table with the IP address.

 

Status — Displays the ARP table entry type. Possible field values  

 

are:

 

  Dynamic — Indicates the ARP entry is learned dynamically.

 

  Static — Indicates the ARP entry is a static entry.

2   Select the Interface to be removed.

3   Click Remove. The ARP interface is removed, and the device is  
 

updated.

MAC addresses are stored in either the Static Address or the Dynamic 
Address databases. A packet addressed to a destination stored in one of 
the databases is forwarded immediately to the port. The Dynamic Ad-
dress Table can be sorted by interface, VLAN, and MAC Address. MAC 
addresses are dynamically learned as packets from sources arrive at the 
device. Addresses are associated with ports by learning the ports from 
the frames source address. Frames addressed to a destination MAC 
address that is not associated with any port, are flooded to all ports of 
the relevant VLAN. Static addresses are manually configured. In order to 
prevent the bridging table from overflowing, dynamic MAC addresses, 
from which no traffic is seen for a certain period, are erased.