Reference Guide

pause
Congures the ingress buer and pause frame settings used for PFC trac classes.
Syntax
pause [buffer-size kilobytes pause-threshold kilobytes resume-threshold
kilobytes]
Parameters
• buffer-size kilobytes — Enter the reserved (guaranteed) ingress-buer size in kilobytes for PFC
dot1p trac (0 to 7787).
• pause-threshold kilobytes — Enter the threshold used to send pause frames in kilobytes to a
transmitting device (0 to 7787).
•
resume-threshold kilobytes — Enter the threshold used to request a transmitting device in kilobytes
to resume sending trac (0 to 7787).
Defaults
The default ingress-buer size reserved for PFC trac classes, and the pause and resume thresholds vary
according to the interface type. The default egress buer reserved for PFC trac classes is 0 on all interface
types.
Table 16. Port defaults
Port Speed 10G Port 25G Port 40G Port 50G Port 100G Port
PFC reserved
ingress buer
45 KB 54 KB 93 KB 111 KB 178 KB
PFC pause
threshold
9 KB 9 KB 18 KB 18 KB 36 KB
PFC resume
threshold
9 KB 9 KB 9 KB 9 KB 9 KB
Command Mode POLICY-CLASS NETWORK-QOS
Usage Information Use the pause command without optional parameters to apply the default ingress-buer size, and pause (XON)
and resume (XOFF) thresholds. Default values for the buffer-size, pause-threshold, and resume-
threshold
parameters vary across interface types and port speeds. The default values are based on the default
MTU size of 9216 bytes. Use the optional queue-limit thresh-mode command to change the amount of
shared buers available to PFC trac-class queues in the policy-class-map.
Example
OS10(config)# policy-map type network-qos pp1
OS10(conf-pmap-network-qos)# class cc1
OS10(conf-pmap-c-nqos)# pause buffer-size 30 pause-threshold 20 resume-
threshold 10
Supported Releases 10.3.0E or later
pfc-cos
Congures the matching dot1p values used to send PFC pause frames.
Syntax
pfc-cos dot1p-priority
Parameters dot1p-priority — Enter a single dot1p priority value for a PFC trac class (1 to 7), a hyphen-separated
range, or multiple dot1p values separated by commas.
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