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- Table of Contents
-
- 04-Layer 2—LAN Switching Configuration Guide
- 00-Preface
- 01-MAC address table configuration
- 02-Ethernet link aggregation configuration
- 03-M-LAG configuration
- 04-VLAN configuration
- 05-MVRP configuration
- 06-VLAN mapping configuration
- 07-VLAN termination configuration
- 08-Loop detection configuration
- 09-Spanning tree configuration
- 10-LLDP configuration
- 11-PFC configuration
- 12-Service loopback group configuration
- 13-Cut-through Layer 2 forwarding configuration
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 13-Cut-through Layer 2 forwarding configuration |
Configuring cut-through Layer 2 forwarding
About cut-through Layer 2 forwarding
Restrictions and guidelines for cut-through Layer 2 forwarding configuration
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
· A frame is forwarded before its CRC field is received, and thus CRC-error frames are forwarded instead of dropped.
· After cut-through Layer 2 forwarding is configured, do not configure the settings related with data buffer thresholds. For more information about data buffers, see data buffer configuration in ACL and QoS Configuration Guide.
· Do not configure cut-through Layer 2 forwarding and the Burst feature at the same time. If you configure cut-through Layer 2 forwarding and the Burst feature at the same time, the Burst feature will not take effect. To use the Burst feature, you must first disable cut-through Layer 2 forwarding.
Procedure
1. Enter system view.
system-view
2. Enable cut-through forwarding.
cut-through enable
By default, cut-through forwarding is disabled.
