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If you have already applied a custom buffer profile on an interface, the buffer-profile global command fails and a
message similar to the following displays: % Error: User-defined buffer profile already applied. Failed
to apply global pre-defined buffer profile. Please remove all user-defined buffer profiles.
Similarly, when you configure buffer-profile global, you cannot not apply a buffer profile on any single interface. A
message similar to the following displays: % Error: Global pre-defined buffer profile already applied.
Failed to apply user-defined buffer profile on interface Te 1/1. Please remove global pre-
defined buffer profile.
To apply a predefined buffer profile, use the following command:
● Apply one of the predefined buffer profiles for all port pipes in the system.
CONFIGURATION mode
buffer-profile global [1Q|4Q]
If the default buffer profile dynamic is active, Dell EMC Networking OS displays an error message instructing you to remove
the default configuration using the no buffer-profile global command.
Troubleshooting Packet Loss
The show hardware stack-unit command is intended primarily to troubleshoot packet loss.
To troubleshoot packet loss, use the following commands.
● show hardware stack-unit cpu data-plane statistics
● show hardware stack-unit cpu party-bus statistics
● show hardware stack-unit 0-11 drops unit 0-0 port 0-63
● show hardware stack-unit 0-11 stack-port 48-51
● show hardware stack-unit 0-11 unit 0-1 {counters | details | port-stats [detail] |
register | execute-shell-cmd | ipmc-replication | table-dump}
● show hardware drops interface [range] interface
● show hardware stack-unit <id> buffer-stats-snapshot unit <id> resource x
● show hardware buffer inteface interface{priority-group { id | all } | queue { id| all} ]
buffer-info
● show hardware buffer-stats-snapshot resource interface interface{priority-group { id |
all } | queue { ucast{id | all}{ mcast {id | all} | all}
● show hardware {layer2| layer3} {e.g. acl |in acl} stack-unit 0-11 port-set 0-0
● show hardware layer3 qos stack-unit 0-7 port-set 0-0
● show hardware ipv6 {e.g.-acl |in-acl} stack-unit 0-11 port-set 0-0
● show hardware system-flow layer2 stack-unit 0-11 port-set 0-0 [counters]
● clear hardware stack-unit 0-11 counters
● clear hardware stack-unit 0-11 unit 0-0 counters
● clear hardware stack-unit 0-11 cpu data-plane statistics
● clear hardware stack-unit 0-11 cpu party-bus statistics
● clear hardware stack-unit 0-11 stack-port 0–63
Displaying Drop Counters
To display drop counters, use the following commands.
● Identify which stack unit, port pipe, and port is experiencing internal drops.
show hardware stack-unit 0–11 drops [unit 0 [port 0–63]]
● Display drop counters.
show hardware stack-unit drops unit port
Dell#sh hard stack-unit 0 drops
UNIT No: 0
Total Ingress Drops: 0
Total IngMacDrops: 0
Total MmuDrops: 0
Total EgMacDrops: 0
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S5000 Debugging and Diagnostics