Users Guide

OID String OID Name Description
NOTE: These OIDs only generate if
you enable the enable optic-
info-update-interval is
enabled command.
Hardware MIB Buffer Statistics
.1.3.6.1.4.1.6027.3.27.1.4 dellNetFpPacketBufferTable View the modular packet buffers details per
stack unit and the mode of allocation.
.1.3.6.1.4.1.6027.3.27.1.5 dellNetFpStatsPerPortTable View the forwarding plane statistics
containing the packet buffer usage per port
per stack unit.
.1.3.6.1.4.1.6027.3.27.1.6 dellNetFpStatsPerCOSTable View the forwarding plane statistics
containing the packet buffer statistics per
COS per port.
Buffer Tuning
Buffer Tuning allows you to modify the way your switch allocates buffers from its available memory and helps prevent packet drops during
a temporary burst of traffic.
Using a PreDefined Buffer Profile
Dell Networking OS provides two predefined buffer profiles, one for single-queue (for example, non-quality-of-service [QoS]) applications,
and one for four-queue (for example, QoS) applications.
You must reload the system for the global buffer profile to take effect, a message similar to the following displays: % Info: For the
global pre-defined buffer profile to take effect, please save the config and reload the system..
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: 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 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 Networking OS displays an error message instructing you to remove the default
configuration using the
no buffer-profile global command.
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Debugging and Diagnostics