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Manageable 8/9-Port Switch
BASIC FUNCTIONS
In general, the D-GES7600 is responsible for switching both VLAN tagged and untagged
frames from a receiving port to one or more transmitting ports. The switch performs
multiple steps during the switching process:
VLAN CLASSIFICATION
LEARNING
FILTERING
AGING
Below is additional information about tasks that the switch performs during unicast
and multicast switching.
User
’s Manual
5
PLEASE NOTE:
I. Half-duplex mode uses back pressure flow control to prevent the receiving
buffer from being overrun by data from a source node.
II. Full-duplex mode uses 802.3x flow control standard to prevent fast data traffic
from overrunning slow data traffic.
III. Auto-sensing mode is in use after auto-negotiating with the other end of the link.
UNICAST SWITCHING
VLAN CLASSIFICATION
When the switch receives a frame, it classifies the frame in one of two ways:
- If the frame is untagged, the switch classifies the frame to an
associated VLAN.
- If the frame is tagged, the switch uses the tagged VLAN ID to identify the
broadcasting domain of the frame.