Reference Guide

Version Description
9.8(0.0) Introduced on the Z9100.
9.7(0.0) Introduced on the S6000-ON.
Version 9.3(0.0) Introduced on the S6000 platform.
Usage
Information
The following information is displayed depending on whether the historical snapshot of buffer statistics is
needed for all ports, per-port per-queue, or a priority group.
● All – Displays all resources on ingress and egress for each of the port, queue.
● Port-Queue ucast/mcast – Displays the total unicast/multicast buffer usage on per-port per-queue
basis. For CPU port, counters for queues 0 – 11 are displayed and no differentiation is made between
unicast and multicast queues.
● Port- Priority-Group – Displays the shared space counters usage, head-room space counters per
ingress port on per-priority- group granularity.
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
Dell#show hardware stack-unit 1 buffer-stats-snapshot unit 0 resource
port 1 queue ucast all
Stack-unit: 1 unit: 0 port: 1 (interface Fo 1/4)
---------------------------------------
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
Dell#show hardware stack-unit 1 buffer-stats-snapshot unit 0 resource
port 5 queue all
Stack-unit 1 unit 0 port 5 (interface te 1/4/1)
-------------------------------------------
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:
Dell#show hardware stack-unit 1 buffer-stats-snapshot unit 0 resource
port 5 queue all
Stack-unit 1 unit 0 port 5 (interface te 1/4/1)
--------------------------------------------
Q# TYPE Q# TOTAL BUFFERED CELLS
518
Debugging and Diagnostics