Configuring Switches

To configure a lossless network, you need to configure switches. This section uses the HUAWEI CE6863-48S6CQ switch as an example to describe how to execute a flow control policy.

1. Log in to the switch and enable priority-based flow control (PFC).

   1 2 3 4 5

   system-view dcb pfc priority 0 commit quit

2. Check whether PFC is enabled.

   1	display dcb pfc-profile

   If 0 is returned, the configuration in 1 takes effect.

   

3. Configure Explicit Congestion Notification (ECN).

   1 2 3 4 5

   system-view drop-profile ecn color green buffer-size low-limit 247520 high-limit 18000000 discard-percentage 100 commit quit

4. Check the ECN profile.

   1	display drop-profile ecn

   If the following information is displayed, the configuration in 3 takes effect.

   

5. Configure flow control for each traffic interface. A 25GE interface 1/0/5 is used as an example.

   1 2 3 4 5 6 7

   interface 25GE 1/0/5 qos queue 0 wred ecn qos queue 0 ecn dcb pfc enable mode manual dcb pfc buffer 0 xoff static 1500 cells commit quit

6. Check whether the configuration takes effect.

   1 2	interface 25GE 1/0/5 display this

   If the information in 5 is returned, the flow control is configured.