Connectivity Guide

NOTE: The range 0-7 is invalid. All other ranges, including 0-6 and 1-7 are valid.
Default Not congured
Command Mode POLICY-MAP-CLASS-MAP
Usage Information To congure link-level ow-control, do not congure pfc-cos for the matched class for this policy. Add the
policy-map with the pfc-cos conguration to system-qos to service an input to enable priority ow-control
behavior on all ports, based on a per-port Priority Flow-Control Enable mode. Add the policy-map with the
pfc-
cos conguration to interface congurations to service at input and enable Priority Flow-Control on that particular
port, based on the port's Priority Flow-Control Enable mode. If you congure 40G to 10G mode on interfaces and
pause (no drop) is enabled on system-qos, all queues may or may not drop trac based on the availability of
buers. The no version of this command returns the value to the default.
Example
OS10(conf-pmap-c-nqos)# pfc-cos 0-2
Example (global
buer/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 25 resume-
threshold 10
OS10(conf-cmap-nqos-c)# pfc-cos 0-2
OS10(conf-cmap-nqos-c)# queue-limit 140
Supported Releases 10.3.0E or later
pfc-max-buer-size
Congures the maximum buer size for priority ow-control enabled ows.
Syntax
pfc-max-buffer-size max-buffer-size
Parameters max-buffer-size — Enter the maximum buer size in KB.
Default None
Command Mode SYSTEM-QOS
Usage Information This command congures the maximum size of the lossless buer pool. The no version of this command removes
the maximum buer size limit.
Example
OS10(config-sys-qos)# pfc-max-buffer-size 2000
Supported Releases 10.4.0E(R1) or later
pfc-shared-buer-size
Changes the shared buers size limit for priority ow-control enabled ows.
Syntax
pfc-shared-buffer-size buffer-size
Parameters buffer-size — Enter the size of the priority ow-control buer in KB, from 0 to 8911.
Default 832 KB
Command Mode SYSTEM-QOS
Usage Information The no version of this command returns the value to the default.
804 Quality of service