Reference Guide

If only two instances are available at the time the above show command is issued, only two instances will be displayed in the summary output.
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Q# TYPE Q# TOTAL BUFFERED CELLS
Instance 1 Instance 2
10S 20S
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UCAST 2 5 4 1
UCAST 3 2 0
UCAST 11 0 3
MCAST 4 0 0
Dell#show hardware linecard 0 buffer-stats-snapshot unit 0 resource port 5 prio-group all history summary
linecard 0 unit 0 port 5 (interface te 0/4)
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PG# Instance 1 Instance 2 Instance 3 Instance 4 Instance 5
Shared Hdrm Shared Hdrm Shared Hdrm Shared Hdrm Shared Hdrm [in CELLS]
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6 9 2 0 0 1 0 4 1 7
1
7 0 0 0 0 1 0 0 0 0
0
In the following example, the Headroom Cells field indicates the amount of shared buffer area that is allocated to store packets that are received after the
pause frame is received or a priority-based flow control pause frame is enabled. When an inbound interface halts the sending of traffic, it must have the buffer
space to save all of the packets currently in the buffer, and also all of the packets that were received before the device stops the sending of packets.
Headroom space is used for high-priority traffic that needs to be queued and preserved above the input queue limit, such as keepalives and hello messages.
You can use the following sample command output to obtain a consolidated, whole-scale set of statistical counters of buffer resource utilization in the system
and identify the ports that you want. All resources will be cleared after their values are displayed.
Dell#show hardware linecard 0 buffer-stats-snapshot unit 0 resource all
linecard: 0 unit: 0 port: 1 (interface Fo 0/0)
---------------------------------------
PG# SHARED CELLS HEADROOM CELLS
---------------------------------------
0 0 0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
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Q# TYPE Q# TOTAL BUFFERED CELLS
---------------------------------------
UCAST 0 0
UCAST 1 0
UCAST 2 0
UCAST 3 0
UCAST 4 0
UCAST 5 0
UCAST 6 0
UCAST 7 0
UCAST 8 0
UCAST 9 0
UCAST 10 0
UCAST 11 1
MCAST 0 0
MCAST 1 0
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Data Center Bridging (DCB)