Dell S6100 Configuration Manual page 505

Parameters
buffer-size
Default The default is 2656KB.
Command Modes CONFIGURATION mode
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Comma
Guide.
Version
9.11(2.0P0)
9.10(0.0)
9.8(1.0)
9.8(0.0P5)
9.7(0.0)
9.6(0.0)
9.3(0.0)
Usage Information
Configure the maximum buffer available for PFC traffic. You can choose to increase or decrease the buffer size that is allocate
default. However, if you modify the PFC buffer size lower than the previously configured size, the system determines whether
size is valid without disrupting the existing configuration. In such a scenario, disable and re-enable DCB.
The lossless queue limit per port is validated based on the dcb pfc-queues command. PFC queue configuration identifies t
number of queues a port can support. Although the queue limit per port is a baseline when dynamic buffering is enabled, the lim
queues depends on the availability of the buffer.
Example
Dell(conf)#dcb pfc-total-buffer-size 2800
Dell(conf)#
Also, show dcb showing the total buffer can be added.
Dell#show dcb
DCB Status: Enabled, PFC Queue Count: 2
Total Buffer:
PFC Total Buffer:
PFC Shared Buffer:
PFC Headroom Buffer:
PFC Available Buffer: Current buffer available for new lossless queues to be
stack-unit Total Buffer PFC Total Buffer PFC Shared Buffer PFC Headroom Buffer PFC Avail
----------------------------------------------------------------------------------------
1
1
1
Enter a number in the range of 0 to 3399.
Description
Default value is changed from 3088 KB to 2656 KB in the Z9100-ON and S6100-ON.
Introduced on the S6100.
Introduced on the Z9100–ON.
Introduced on the S4048–ON.
Introduced on the S6000-ON.
Introduced on the S5000.
Introduced on the S6000, S4810, and S4820T.
Total available buffer excluding the buffer pre-allocated
for guaranteed services like global headroom, queue's min
guaranteed buffer and CPU queues.
Maximum buffer available for lossless queues.
Buffer used by ingress priority groups for shared usage.
Buffer used by ingress priority group for shared headroom usage.
Provisioned.
PP (KB)
0.0 3399 2800
0.1 3399 2800
0.2 3399 2800
(KB) (KB)
1040
1040
1040
Data Center Bridging (DCB)
(KB)
1040 711
1040 720
1040 711
505