Reference Guide

Table 7. 10G and 25G port defaults
Port Speed 10G Port 25G Port
PFC reserved ingress buer 45 KB 54 KB
PFC pause threshold 9 KB 9 KB
PFC resume threshold 9 KB 9 KB
Table 8. 40G and 50G port defaults
Port Speed 40G Port 50G Port
PFC reserved ingress buer 93 KB 111 KB
PFC pause threshold 18 KB 18 KB
PFC resume threshold 9 KB 9 KB
Table 9. 100G port defaults
Port Speed 100G Port
PFC reserved ingress buer 178 KB
PFC pause threshold 36 KB
PFC resume threshold 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 (0 to 7), a hyphen-separated
range, or multiple dot1p values separated by commas.
Default Not congured
Command Mode POLICY-CLASS NETWORK-QOS
Usage Information When you enter PFC-enabled dot1p priorities with pfc-cos, the dot1p values must be the same as the match
qos-group (trac class) numbers in the network-qos class map used to dene the PFC trac class (see
Converged data center services 545