Service Manual

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 pre-defined 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 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
!
buffer-profile fp fsqueue-fp
buffer dedicated queue0 3 queue1 3 queue2 3 queue3 3 queue4 3 queue5 3 queue6 3 queue7 3
buffer dynamic 1256
!
buffer-profile fp fsqueue-hig
buffer dedicated queue0 3 queue1 3 queue2 3 queue3 3 queue4 3 queue5 3 queue6 3 queue7 3
buffer dynamic 1256
!
buffer fp-uplink stack-unit 1 port-set 0 buffer-policy fsqueue-hig
buffer fp-uplink stack-unit 1 port-set 1 buffer-policy fsqueue-hig
!
Interface range tengigabitethernet 1/1 - 18
buffer-policy fsqueue-fp
Dell#show run interface tengigabitethernet 1/10
!
interface TenGigabitEthernet 1/10
no ip address
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} }
buffer-info
Debugging and Diagnostics 1061