Users Guide

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
Supported
Releases
10.3.0E or later
Enhanced transmission selection
ETS provides customized bandwidth allocation to 802.1p classes of traffic. Assign different amounts of bandwidth to Ethernet,
FCoE, or iSCSI traffic classes that require different bandwidth, latency, and best-effort treatment during network congestion.
ETS divides traffic into different priority groups using their 802.1p priority value. To ensure that each traffic class is correctly
prioritized and receives the required bandwidth, configure bandwidth and queue scheduling for each priority group. To prioritize
low-latency storage and server-cluster traffic, allocate more bandwidth to a priority group. To rate-limit best-effort LAN traffic,
allocate less bandwidth to a different priority group.
1320
Converged data center services