port-pfc-stats-show
Priority Flow Control (PFC) is an IEEE standard (802.1qbb) for link level flow control on Ethernet networks. Functionally, this feature is similar to the IEEE standard 802.3 for PAUSE mechanism, except that it operates at the granularity of individual packet priorities or traffic class, instead of port level. When a queue corresponding to traffic with a particular traffic class reaches a predetermined, either auto or statically set, threshold, the switch chip generates a PFC frame, and sends it back to the sender. For PFC to work effectively end to end on the network, all switches, and hosts in the traffic path are configured to enable PFC, and configured for traffic class to priority mappings.
This command allows you to display PFC stats on ports.
Syntax port-pfc-stats-show
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Specify any of the following options: |
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time date/time: yyyy-mm-ddTHH:mm:ss |
The time of statistics collection. |
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start-time date/time: yyyy-mm-ddTHH:mm:ss |
The start time for statistics collection. |
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end-time date/time: yyyy-mm-ddTHH:mm:ss |
The end time for statistics collection. |
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duration duration: #d#h#m#s |
The duration time for statistics collection. |
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interval duration: #d#h#m#s |
An interval between statistics collection. |
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since-start |
The statistics collection from a start time. |
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older-than duration: #d#h#m#s |
Specify to display statistics collection older than the specified time. |
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within-last duration: #d#h#m#s |
The within-last time for statistics collection. |
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port port-list |
The port list to display CoS stats. |
Defaults None
Access Network administrator
History
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Version 2.5.4 |
Command introduced. |
Usage This command is used to displays PFC stats information about link level flow control for traffic on the network.
Examples To display PFC stats, use the following command:
CLI (network-admin@Spine1)> port-pfc-stats-show
switch time port pri0-rx pri0-tx pri1-rx pri1-tx pri2-rx pri2-tx pri3-rx pri3-tx pri4-rx pri4-tx pri5-rx pri5-tx pri6-rx pri6-tx pri7-rx pri7-tx
---------- -------- ---- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- -------
switch 01:23:02 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 21 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 22 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 61 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 69 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 71 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
switch 01:23:02 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0