Sample Buffer Profile Configuration; Troubleshooting Packet Loss; Displaying Drop Counters - Dell S6100 Configuration Manual

buffer-profile global [1Q|4Q]
If the default buffer profile dynamic is active, Dell Networking OS displays an error message instructing you to remove the default
configuration using the no buffer-profile global command.

Sample Buffer Profile Configuration

The two general types of network environments are sustained data transfers and voice/data.
Dell Networking recommends a single-queue approach for data transfers.
Example of a Single Queue Application with Default Packet Pointers

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 stack-unit-number cpu data-plane statistics
• show hardware stack-unit stack-unit-number cpu party-bus statistics
• show hardware stack-unit stack-unit-number drops unit unit-number
• show hardware stack-unit stack-unit-number unit unit-number {counters | details | port-stats
[detail] | register | ipmc-replication | table-dump}
• show hardware {ip | ipv6 | mac} {eg-acl | in-acl} stack-unit stack-unit-number port-set 0
pipeline 0-3
• show hardware ip qos stack-unit stack-unit-number port-set 0
• show hardware system-flow layer2 stack-unit stack-unit-number port-set 0 {counters | pipeline
0-3}
• show hardware drops interface interface
• show hardware buffer-stats-snapshot resource interface interface
• show hardware buffer inteface interface{priority-group { id | all } | queue { id| all} |
detail} buffer-info
• show hardware buffer-stats-snapshot resource interface interface{priority-group { id | all } |
queue { ucast{id | all}{ mcast {id | all} | all}
• show hardware drops interface interface
• clear hardware stack-unit stack-unit-number counters
• clear hardware stack-unit stack-unit-number unit 0-1 counters
• clear hardware stack-unit stack-unit-number cpu data-plane statistics
• clear hardware stack-unit stack-unit-number cpu party-bus statistics

Displaying Drop Counters

To display drop counters, use the following commands.
• Identify which stack unit and port pipe is experiencing internal drops.
show hardware stack-unit stack-unit-number drops [unit unit-number]
• Identify which interface is experiencing internal drops.
show hardware drops interface interface
Example of the show hardware stack-unit Command to View Drop Counters Statistics
Example of show hardware drops interface
Dell#show hardware drops interface hundredGigE 1/1/1
Drops in Interface Hu 1/1/1:
980 Debugging and Diagnostics
interface