User manual
39
(
Figure 6.10.1
)
Tx
Number of bytes of all data packets sent by the port
Rx
Number of bytes of all data packets received by the port
Unicast
Number of unicast data packets sent and received by the port
Multicast
Number of multicast data packets sent and received by the port
Broadcast
Number of broadcast data packets sent and received by the port
Error
Number of error packets because of some reasons sent and received by the port
5.12.4 MAC address table
MAC
(
Media Access Control
)
address is the network device hardware identification, the switch to forward packets
based on MAC addresses. The MAC address is unique, which ensures correct packet forwarding. Each switch
maintains a MAC address table. In this table, MAC addresses and switches port one-to-one correspondence. When
the switches received a data frame, according to the MAC address table to determine the filter or forward the data
frame corresponding to the switch port. MAC address table is the basis and premise of the switch to achieve fast
forwarding.
MAC address classify into three types in device address MAC address list:
1. Dynamic MAC address
Dynamic MAC address of the switches in the network through the data frame to learn, when the arrival of aging
time will be deleted. When the device is connected to the switch port to change the MAC address table and port
corresponding relationship will change accordingly. Dynamic MAC address of the switch is powered restart will
disappear, the need to re-learn.
2. Static certification (solidify) MAC address