Service Manual

dot1p Value in the
Incoming Frame
Egress Queue Assignment
2 0
3 1
4 2
5 3
6 3
7 3
dot1p Value in the
Incoming Frame
Egress Queue Assignment
0 2
1 0
2 1
3 3
4 4
5 5
6 6
7 7
Configuring the Dynamic Buffer Method
Priority-based flow control using dynamic buffer spaces is supported on the platform.
To configure the dynamic buffer capability, perform the following steps:
1. Enable the DCB application. By default, DCB is enabled and link-level flow control is disabled on all
interfaces.
CONFIGURATION mode
dcb enable
2. Configure the shared PFC buffer size and the total buffer size. A maximum of 4 lossless queues are
supported.
CONFIGURATION mode
dcb pfc-shared-buffer-size
dcb pfc-total-buffer-size 5000
NOTE: For dcb pfc-shared-buffer-size, the range is from <0-11210> in KB (default
LC=2496/SFM=3328)
For dcb pfc-total-buffer-size, the range is from <0-11210> in KB(default LC=7488/
SFM=7596)
3. Configure the number of PFC queues.
320
Data Center Bridging (DCB)