You can use the
priority
command to set up both the administrative and peer-related PFC priorities. For
example, you can configure the intended buffer configuration for all eight priorities. If you configure the number of
lossless queues as 4 and if the administrator-configured priorities configured within the DCB input policy is applied,
then the configuration for those priorities are pre-designed. However, if the peer-provided priorities are applied,
although a DCB input policy is present, the peer-provided priorities become effective for buffer configuration. This
method of configuration provides an easy and flexible technique to accommodate both administratively-configured
and peer-configured priorities.
Example
Dell(conf-dcb-buffer-thr)# priority 0 buffer-size 68 pause-threshold 30 resume-
offset 10 shared-threshold-weight 10
dcb-policy buffer-threshold (Interface Configuration)
Assign the DCB policy to the DCB buffer threshold profile on interfaces. This setting takes precedence over the global buffer-threshold
setting.
Syntax
dcb-policy buffer-threshold
profile-name
Parameters
buffer-threshold
Configure the profile name for the DCB buffer threshold
profile-name
Enter the name of the profile, which can be a string of up to 32 characters in length.
Default
None
Command Modes
INTERFACE mode
Command History
This guide is platform-specific. For command information about other platforms, see the relevant
Dell Networking
OS Command Line Reference Guide
.
Version
Description
9.10(0.0)
Introduced on the S6100-ON.
9.8(1.0)
Introduced on the Z9100–ON.
9.7(0.0)
Introduced on the S6000-ON and Z9500.
9.3(0.0)
Introduced on the S4810, S4820T, and S6000 platforms.
Usage Information
You can configure up to a maximum of four lossless (PFC) queues. By configuring four lossless queues, you can
configure four different priorities and assign a particular priority to each application that your network is used to
process. For example, you can assign a higher priority for time-sensitive applications and a lower priority for other
services, such as file transfers. You can configure the amount of buffer space to be allocated for each priority and
the pause or resume thresholds for the buffer. This method of configuration enables you to effectively manage and
administer the behavior of lossless queues.
Example
Dell(conf-if-te-1/1/1/1)# dcb-policy buffer-threshold test
dcb pfc-total-buffer-size
Configure the total buffer size for PFC in kilobytes.
Syntax
dcb pfc-total—buffer—size
buffer-size
504
Data Center Bridging (DCB)