Reference Guide
pause
Congures the ingress buer and pause frame settings used for PFC trac classes.
Syntax
pause [buffer-size kilobytes pause-threshold kilobytes resume-threshold
kilobytes]
Parameters
• buffer-size kilobytes — Enter the reserved (guaranteed) ingress-buer size in kilobytes for PFC
dot1p trac (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 trac (0 to 7787).
Defaults
The default ingress-buer size reserved for PFC trac classes, and the pause and resume thresholds vary
according to the interface type. The default egress buer reserved for PFC trac 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 buer
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-buer 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 buers available to PFC trac-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
Congures 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 trac class (1 to 7), a hyphen-separated
range, or multiple dot1p values separated by commas.
634 Converged data center services