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In chart
1, there is a layer 2 that switches without setting VLAN. Any broadcast frame will be transmitted to the other ports
except the send port. For example, a broadcast information is sent out from port 1 then transmitted to port 2,3and
4.
In chart 2, red and blue indicate two different VLANs in the switch, and port 1 and port 2 belong to red VLAN, port
3 and port 4 belong to blue VLAN. If a broadcast frame is sent out from port 1, switch will transmit it to port 2, the
other port in the red VLAN and not transmit it to port3 and port 4 in blue VLAN. By this means, VLAN divide the
broadcast domain via
restricting the range of broadcast frame transition.
Note: chart 2 use red and blue to identify the different VLAN, but in practice, VLAN uses different VLAN IDs to
identify.
Содержание COOFONE-D60
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