Addendum

When the buffer-stats-snapshot is disabled, an informational message is dispayed
to this effect when you attempt to view the buffer statistics tracking resource
information without polling details and historical snapshots.
Example
FTOS#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 1 queue ucast all
Stack-unit: 0 unit: 0 port: 1 (interface Fo 0/0)
---------------------------------------
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 0
FTOS#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 5 queue all
Stack-unit 0 unit 0 port 5 (interface te 0/4)
---------------------------------------------------------------
------------------------------------------------
Q# TYPE Q# TOTAL BUFFERED CELLS
---------------------------------------------------------------
------------------------------------------------
UCAST 5 4
UCAST 6 8
UCAST 11 1
MCAST 4 11
Only the queues for which the buffer cell consumption is not zero are displayed. If
an egress buffer is not present on any of the queues on port 5, the following
sample output is displayed:
FTOS#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 5 queue all
Stack-unit 0 unit 0 port 5 (interface te 0/4)
---------------------------------------------------------------
------------------------------------------------
Q# TYPE Q# TOTAL BUFFERED CELLS
---------------------------------------------------------------
-------------------------------------------------
FTOS#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 5 prio-group all
Stack-unit 0 unit 0 port 5 (interface te 0/4)
Quality of Service (QoS)
205