Users Guide

dcb enable
2 Congure the shared PFC buer size and the total buer size. A maximum of 4 lossless queues are supported.
CONFIGURATION mode
dcb pfc-shared-buffer-size value
dcb pfc-total-buffer-size value
The buer size range is from 0 to 3399. Default is 3088.
3 Congure the number of PFC queues.
CONFIGURATION mode
dcb enable pfc-queues pfc-queues
The number of ports supported based on lossless queues congured depends on the buer. The default number of PFC queues in the
system is one.
For each priority, you can specify the shared buer threshold limit, the ingress buer size, buer limit for pausing the acceptance of
packets, and the buer oset limit for resuming the acceptance of received packets.
4 Congure the prole name for the DCB buer threshold
CONFIGURATION mode
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 buer threshold prole.
CONFIGURATION mode
7 Assign the DCB policy to the DCB buer threshold prole on interfaces. This setting takes precedence over the default buer-
threshold setting.
INTERFACE mode (conf-if-te)
dcb-policy buffer-threshold buffer-threshold
Sample DCB Conguration
The following shows examples of using PFC and ETS to manage your data center trac.
In the following example:
• Incoming SAN trac is congured for priority-based ow control.
• Outbound LAN, IPC, and SAN trac is mapped into three ETS priority groups and congured for enhanced trac selection (bandwidth
allocation and scheduling).
• One lossless queue is used.
Data Center Bridging (DCB)
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