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- Table of Contents
-
- 03-Layer 2—LAN Switching Configuration Guide
- 00-Preface
- 01-MAC address table configuration
- 02-Bulk interface configuration
- 03-Ethernet interface configuration
- 04-Ethernet link aggregation configuration
- 05-DRNI configuration
- 06-Port isolation configuration
- 07-VLAN configuration
- 08-MVRP configuration
- 09-Loopback, null, and inloopback interface configuration
- 10-QinQ configuration
- 11-VLAN mapping configuration
- 12-PBB configuration
- 13-Loop detection configuration
- 14-Spanning tree configuration
- 15-LLDP configuration
- 16-L2PT configuration
- 17-Service loopback group configuration
- 18-Cut-through Layer 2 forwarding configuration
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 18-Cut-through Layer 2 forwarding configuration | 37.81 KB |
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
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 following ports:
· The two SFP+ ports on the front panel of an S6820-32H switch.
· The two SFP ports on the back panel of an S6820-56HF or S6820-4C switch.
Procedure
1. Enter system view.
system-view
2. Enable cut-through forwarding.
cut-through enable
By default, cut-through forwarding is disabled.
