Service Manual

DCB buffer threshold settings are applied on one or more ports, a validation is
performed to determine whether following condition is satisfied: If the shared buffer
size is more than the total PFC buffer size value, the configuration is not saved and a
system logging message is generated as follows:
Shared-pfc-buffer-size <= (Total-pfc-buffer-size — Σpfc priority <> buffer-size on each
port, priority).
Dell(conf)#dcb pfc-shared-buffer-size 2000 %ERROR: pfc shared
buffer size configured cannot accommodate existing buffer
requirement in the system.
Enter a smaller value for the shared buffer size or increase the total buffer size
appropriately by using the dcb pfc-total- buffer-size command.
Example
Dell(conf)#dcb pfc-shared-buffer-size 800
dcb-buffer-threshold
Configure the profile name for the DCB buffer threshold.
Syntax
dcb buffer—threshold
Parameters
profile-name Enter the name of the profile, which can be a string of up to 32
characters in length.
Default None
Command Modes CONFIGURATION 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
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0) Introduced on the S4048-ON.
9.7(0.0) Introduced on the S6000-ON and Z9500.
9.6(0.0) Introduced on the S5000.
9.3(0.0) Introduced on the S4810, S4820T, and S6000.
Usage Information When you enter the profile name, you enter the DCB buffer threshold configuration
mode. You can specify the shared buffer threshold limit, the ingress buffer size, buffer
limit for pausing the acceptance of packets, and the buffer offset limit for resuming the
acceptance of received packets.
Example
Dell(conf)#dcb buffer—threshold test
Data Center Bridging (DCB) 635