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Chapter 2: Port Parameters
70 Section I: Basic Operations
other ports to discard packets destined for port D. Port A drops the D
packets, enabling it to once again forward packets to port C.
The number that you enter for this value represents cells. A cell is 128
bytes. The range is 0 to 8191 cells. The default is 682.
To set up head of line blocking, perform the following procedure:
1. From the Main Menu, type 1 to select Port Configuration.
The Port Configuration menu is shown in Figure 13 on page 62.
2. From the Port Configuration menu, type 1 to select Port Configuration.
The following prompt is displayed:
Enter port-list ->
3. Enter the number of the port to be configured. You can configure more
than one port at a time. You can specify the ports individually (for
example, 5,7,22), as a range (for example, 18-23), or both (for
example 1,5,14-22).
The Port Configuration menu is shown in Figure 15 on page 65.
4. From the Port Configuration menu, type 2 to select HOL BLocking
Prevention Threshold.
The following prompt is displayed:
Enter HOL Blocking Prevention Threshold (128 byte cells)
: [1 to 8191] -> 682
5. Enter the threshold in cells. A cell equals 128 bytes. The range is 1 to
8191 cells. The default is 682.
6. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.