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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
227
4.10.1.1 Port Priority Configuration
You can specify the default port priority for each interface on the Managed Switch. All untagged packets entering the Managed
Switch are tagged with the specified default port priority, and then sorted into the appropriate egress queue at the output port.
• This Managed Switch provides four egress queues for each port. It uses Weighted Round Robin to prevent head-of-queue
blockage.
• The default priority applies for an untagged frame received on a port set to accept all frame types (i.e., receives both
untagged and tagged frames). This priority does not apply to IEEE 802.1Q VLAN tagged frames. If the incoming frame is an
IEEE 802.1Q VLAN tagged frame, the IEEE 802.1p User Priority bits will be used.
• If the output port is an untagged member of the associated VLAN, these frames are stripped of all VLAN tags prior to
transmission.
Figure 4-10-1 Default Port Priority page screenshot
The page includes the following fields:
Object Description
• Port
Numeric identifier for the Managed Switch port.
• Default Priority
The priority that is assigned to untagged frames received on the specified
interface. Range: 0-7;
Default: 0
• Number of Egress
Traffic Classes
The number of queue buffers provided for each port.
• Trunk
The trunk identifier. (Port Priority Configuration only)