Administrator Guide

Dell Networking OS Behavior: After you configure buffer-profile global 1Q, the message displays during
every bootup. Only one reboot is required for the configuration to take effect; afterward you may ignore this
bootup message.
Dell Networking OS Behavior: The buffer profile does not returned to the default, 4Q. If you configure 1Q,
save the running-config to the startup-config, and then delete the startup-config and reload the chassis. The
only way to return to the default buffer profile is to remove the 1Q profile configured and then reload the
chassis.
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 Gi 0/1.
Please remove global pre-defined buffer profile.
If the default buffer profile (4Q) is active, the system displays an error message instructing you to remove the
default configuration using the no buffer-profile global command.
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]
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 0 port-set 0 buffer-policy fsqueue-hig
buffer fp-uplink stack-unit 0 port-set 1 buffer-policy fsqueue-hig
!
Interface range gi 0/1 - 48
buffer-policy fsqueue-fp
Dell#show run int Tengig 0/10
Debugging and Diagnostics 1031