Enabling the Switch to Perform Layer 2 Forwarding for IP Traffic During a Ring Network Switchover
Context
As shown in Figure 8-2, when the switch deployed with the ring network protocols (STP, RSTP, MSTP, SEP, ERPS, RRPP, VBST, and Smart Link) performs a link switchover due to a link fault, the switch needs to learn ARP entries again. This deteriorates Layer 3 convergence performance of IP traffic. If the switch is enabled to perform Layer 2 forwarding for IP traffic during the switchover, the convergence performance can be improved. By default, the switch is enabled to perform Layer 2 forwarding for IP traffic during a ring network switchover.
Only the X series cards support this function.
Procedure
- Run system-view
The system view is displayed.
- Run undo ip forwarding converge
The switch is enabled to perform Layer 2 forwarding for IP traffic during a ring network switchover.
By default, the switch is enabled to perform Layer 2 forwarding for IP traffic during a ring network switchover.
After the switch is enabled to perform Layer 2 forwarding for IP traffic, it will forward the IP traffic in broadcast mode when the links are switched. Therefore, the IP traffic increases within a short time.