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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 2000
dcb pfc-total-buffer-size 5000
3. Configure the number of PFC queues.
CONFIGURATION mode
dcb enable pfc-queues pfc-queues
The number of ports supported based on lossless queues configured will depend on the buffer. The
default number of PFC queues in the system is two for S4810 and Z9500, and one for S6000
platforms.
For each priority, you can specify the shared buffer threshold limit, the ingress buffer size, buffer limit
for pausing the acceptance of packets, and the buffer offset limit for resuming the acceptance of
received packets.
4. Configure the profile name for the DCB buffer 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 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 (conf-if-te)
dcb-policy buffer-threshold 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.
Data Center Bridging (DCB)
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