Users Guide

Parameters size — Enter the size of the buffer (1500 to 9216).
Default 9216
Command Mode POLICY-MAP-CLASS-MAP
Usage
Information
The no version of this command returns the value to the default.
Example
OS10(conf-pmap-nqos-c)# mtu 2500
Supported
Releases
10.3.0E or later
pause
Enables a pause based on buffer 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 buffer size used as a guaranteed buffer in KB,
default values: 10G–45KB, 40G–93KB.
● pause-threshold xoff-size — (Optional) Enter the buffer limit for the port to start or initiate
a pause to the peer in KB, default values: 10G–9KB, 40G–18KB.
● resume-threshold xon-size — (Optional) Enter the buffer limit for the port to stop or cancel
sending a pause to the peer in KB (defaults 10G–9KB, 40G–9KB).
Default See parameter values
Command Mode POLICY-MAP-CLASS-MAP
Usage
Information
Only use this command under the network-qos policy type. Buffer-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 or Priority Flow-Control enable
mode. The xoff and xon threshold settings for link-level flow-control are applied on ports where all
traffic classes must be mapped to a single PG. Platform-specific 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
buffer)
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
Configures priority flow-control for cost of service (CoS).
Syntax
pfc-cos cos-value
Quality of service 1581