1
Configuring cut-through Layer 2
forwarding
About cut-through Layer 2 forwarding
A cut-through forwarding-enabled device forwards a frame after it receives the first 64 bytes of the
frame. This feature reduces the transmission time of a frame and enhances forwarding performance.
Restrictions and guidelines for cut-through Layer
2 forwarding configuration
With cut-through forwarding, the device forwards CRC-error frames because it starts forwarding
frames before their CRC field is received.
This feature is not available on the two SFP ports on the back panel of an S6850-56HF or S9850-4C
switch.
Procedure
1.
Enter system view.
system-view
2.
Enable cut-through forwarding.
cut-through enable
By default, cut-through forwarding is disabled.
Summary of Contents for S6850 Series
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