Users Guide

• Port-Queue ucast/mcast – Displays the total unicast/multicast buer usage on per-port per-queue basis. For
CPU port, counters for queues 0 – 11 are displayed and no dierentiation 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 buer-stats-snapshot is disabled, an informational message is dispayed to this eect when you attempt
to view the buer 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 buer cell consumption is not zero are displayed. If an egress buer 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
----------------------------------------------
Dell#show hardware stack-unit 1 buffer-stats-snapshot unit 0 resource
port 5 prio-group all
Stack-unit 1 unit 0 port 5 (interface te 1/4/1)
--------------------------------------
PG# SHARED CELLS HEADROOM CELLS
---------------------------------------
6 1000 5
Debugging and Diagnostics
539