Users Guide

qos-policy-buer
Create a QoS policy buer and enter the conguration mode to congure the no-drop queues, ingress buer size, buer limit for
pausing, and buer oset limit for resuming.
Syntax
qos-policy-buffer queue queue-num pause no-drop queue buffer-size size
pause-threshold threshold-value resume-offset threshold-value shared-
threshold-weight size
Parameters
policy-name Name of the QoS policy buer that is applied to an interface for this setting to be
eective in conjunction with the DCB input policy. 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. This method of conguration enables dierent peer-provided and
administrative priorities to be set up because the intended queue is directly
congured instead of determining the priority to queue mapping for local and
remote parameters.
queue 0 to queue 7 Specify the queue number to which the QoS policy buer parameters apply
pause Pause frames to be sent at the specied buer limit levels and pause packet
settings
no-drop The packets for this queue must not be dropped
value Enter a number in the range of 0 to 7 to denote the priority to be allocated to the
dynamic buer control mechanism
buer-size Ingress buer size
size Size of the ingress buer in KB. Enter a number in the range of 0 to 7787. The
default is 45 KB.
pause-threshold Buer limit for pause frames to be sent
threshold-value Buer limit at which the port sends the pause to peer in KB. Enter a number in the
range of 0 to 7787. The default is 10 KB.
resume-oset Buer oset limit for resuming in KB
threshold-value Buer oset limit at which the port resumes the peer in KB. Enter a number in the
range of 1 to 7787. The default is 10 KB.
shared-threshold-
weight
Buer shared threshold weight
size Weightage of the priorities on the shared buer size in the system. Enter a number
in the range of 0 to 9. The default shared threshold weight is 10.
Default The default size of the ingress buer is 45 KB. The default buer limit at which the port sends the pause to
peer and recommences the sending of packets to the peer is 10 KB. The default threshold weight of the
shared buer space is 10.
Command Modes DCB-BUFFER-THRESHOLD mode
Command History
Version Description
9.7(0.0) Introduced on the S6000-ON and Z9500.
9.3(0.0) Introduced on the S4810, S4820T, S6000, and MXL platforms.
Data Center Bridging (DCB)
533