Operation Manual

VigorSwitch G1260 User’s Guide
30
The switch port can run at different speed, such as 10Mbps, 100Mbps or 1000Mbps. A
shared hub cannot afford this.
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Traffic aggregation is to aggregate the bandwidth of more than one port and treat it as a
single port in the LAN. This single port possesses the features of a normal port but loading
balance. This is a great feature for the port needing more bandwidth but cannot afford
paying much cost for high bandwidth port. (*
The switch image is sample only.)
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Traffic aggregation is to aggregate the bandwidth of more than one port and treat it as a
single port in the LAN. This single port possesses the features of a normal port but loading
balance. This is a great feature for the port needing more bandwidth but cannot afford
paying much cost for high bandwidth port. (*
The switch image is sample only.)
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A Layer 2 switch uses some features of the Data Link layer in OSI model to forward the
packet to the destination port(s). Here we introduce some important features of a switch
and how they work.
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When a packet is received on a port of switch, the switch first checks if the packet good or
bad and extracts the source MAC address (SA) and destination MAC address (DA) to find
1) if SA is existed in the MAC address table, if no, puts it in the MAC address table, if yes,
2) looks up DA and its associated port to which the traffic is forwarded. If DA does not
exist, have the packet broadcasted.
Due to the size of the MAC address limited, MAC address aging function is applied. When
the MAC address has resided and keeps no update in the table for a long time, this means