Connectivity Guide

pause
Enables a pause based on buer limits for the port to start or stop communication to the peer.
Syntax
pause [buffer-size size pause-threshold xoff-size resume-threshold xon-size]
Parameters
• buffer-size size — (Optional) Enter the ingress buer size used as a guaranteed buer in KB, .
– Default values for PFC: 10G, 25G–183KB, 40G–375KB, 100G–446KB
– Default values for LLFC: 10G,25G–207.5KB, 40G,100G–300.5KB
• pause-threshold xoff-size — (Optional) Enter the buer limit for the port to start or initiate a pause
to the peer in KB, .
– Default values for PFC: 10G, 25G–96KB, 40G–192KB, 100G–232KB
– Default values for LLFC: 10G,25G–198.5KB, 40G,100G–264.5KB
•
resume-threshold xon-size — (Optional) Enter the buer limit for the port to stop or cancel sending a
pause to the peer in KB .
– Default values for PFC: 10G, 25G–87KB, 40G–183KB, 100G–214KB
– Default values for LLFC: 10G,25G–9KB, 40G,100G–36KB
Default See parameter values
Command Mode POLICY-MAP-CLASS-MAP
Usage Information Only use this command under the network-qos policy type. Buer-size, pause-thresholds, and resume-
thresholds vary based on platform. Add the policy-map with pause to system-qos to service an input to enable
pause on all ports, based on a per-port link-level Flow-Control mode. The xoff and xon threshold settings for
link-level ow-control are applied on ports where all trac classes must be mapped to a single PG. Platform-
specic default values are based on MTU sizes of 9216 and cable length of 100 meters. The no version of this
command returns the value to the default.
Example
OS10(conf-pmap-c-nqos)# pause buffer-size 45 pause-threshold 25 resume-
threshold 10
Example (global and
shared buer)
OS10(config)# policy-map type network-qos nqGlobalpolicy1
OS10(conf-cmap-nqos)# class CLASS-NAME
OS10(conf-cmap-nqos-c)# pause buffer-size 45 pause-threshold 30 resume-
threshold 30
OS10(config)# policy-map type network-qos nqGlobalpolicy1
OS10(conf-cmap-nqos)# class type network-qos nqclass1
OS10(conf-cmap-nqos-c)# pause buffer-size 45 pause-threshold 30 resume-
threshold 10
Supported Releases 10.3.0E or later
pfc-cos
Congures priority ow-control for cost of service (CoS).
Syntax
pfc-cos cos-value
Parameters cos-value — Enter a single, comma-delimited, or hyphenated range of CoS values for priority ow-control to
enable, from 0 to 7.
Quality of service 803