Users Guide

queue-limit
Sets the static and dynamic thresholds that are used to limit the shared-buffer size of PFC traffic-class queues.
Syntax
queue-limit {thresh-mode [static kilobytes | dynamic weight]}
Parameters
● thresh-mode —Specifies the Buffer threshold mode.
● static kilobytes — Enter the static followed by the fixed shared-buffer limit available for PFC
traffic-class queues in kilobytes, from 0 to 7787. The value of this parameter must be within the
maximum amount tuned by the pfc-shared-buffer-size command.
● dynamic weight — Enter the dynamic followed by the weight value used to dynamically determine
the shared-buffer limit available for PFC traffic-class queues, from 1 to 10.
Default Dynamic weight of 9 and static shared-buffer limit of 12,479,488 kilobytes.
Command Mode POLICY-CLASS NETWORK-QOS
Usage
Information
To tune the amount of shared buffers available for the static limit of PFC traffic-class queues on the
switch, use the pfc-shared-buffer-size command. The current amount of available shared buffers
determines the dynamic queue-limit.
Example
OS10(config)# policy-map type network-qos pp1
OS10(conf-pmap-network-qos)# class cc1
OS10(conf-pmap-c-nqos)# queue-limit thresh-mode static 1024
Supported
Releases
10.3.0E or later
show interface priority-flow-control
Displays PFC operational status, configuration, and statistics on an interface.
Syntax
show interface [ethernet node/slot/port[:subport]] priority-flow-control
[details]
Parameters etherent node/slot/port[:subport]- Specifies the Ethernet interface along with the slot
number and port number. The slot number is from 1 to 255, and the port number is from 1 to 128.
Default Not configured
Command Mode EXEC
Usage
Information
Use the details option to display PFC statistics on received/transmitted frames for each dot1p CoS
value. Use the clear qos statistics interface ethernet 1/1/1 command to delete PFC
statistics and restart the counter.
Example (details)
OS10(config)# show interface ethernet 1/1/15 priority-flow-control
details
ethernet1/1/15
Admin Mode : true
Operstatus: true
PFC Priorities: 3
Total Rx PFC Frames: 0
Total Tx PFC frames: 587236
Cos Rx Tx
-----------------------
0 0 0
1 0 0
2 0 0
3 0 587236
4 0 0
5 0 0
6 0 0
7 0 0
Converged data center services 1687