White Papers

dcb-buffer-threshold dcb-buffer-threshold
5.
DCB-BUFFER-THRESHOLD mode
priority 0 buffer-size 52 pause-threshold 16 resume-offset 10 shared-threshold-weight 7
6. Assign the DCB policy to the DCB buffer threshold profileon backplane.
CONFIGURATION mode
dcb-policy buffer-threshold linecard {linecard-number | all} port-set {port-pipe | all}
backplane all dcb-policy-name
7. Assign the DCB policy to the DCB buffer threshold profile on interfaces. This setting takes precedence over the default
buffer-threshold setting.
INTERFACE mode
dcb-policy buffer-threshold dcb-buffer-threshold
8. Configuring DCB buffer on SFM ports.
CONFIGURATION mode
dcb-policy buffer-threshold sfm all [port-set all] dcb-policy-name
9. Configuring Global total buffer size on linecards.
CONFIGURATION mode
dcb pfc-total-buffer-size buffer-size linecard {linecard-number | all}
Line card number range is from 0 to 2.
10. Configuring DCB global total buffer on SFM ports.
CONFIGURATION mode
dcb pfc-total-buffer-size buffer-size sfm all
11. Configuring DCB global shared buffer on SFM ports.
CONFIGURATION mode
dcb pfc-shared-buffer-size buffer-size sfm all
12. Configuring global shared buffer size on linecards.
CONFIGURATION mode
dcb pfc-shared-buffer-size buffer-size linecard {linecard-number | all} [port-set {port-
pipe | all}]
Sample DCB Configuration
The following shows examples of using PFC and ETS to manage your data center traffic.
In the following example:
● Incoming SAN traffic is configured for priority-based flow control.
● Outbound LAN, IPC, and SAN traffic is mapped into three ETS priority groups and configured for enhanced traffic selection
(bandwidth allocation and scheduling).
● One lossless queue is used.
Data Center Bridging (DCB)
261