Dell Z9000 Configuration Manual page 948

Displaying the Default Buffer Profile
Displaying Buffer Profile Allocations
Dell Networking OS Behavior: If you attempt to apply a buffer profile to a non-existent port-pipe, Dell
Networking OS displays the following message. However, the configuration still appears in the running-
config.
%DIFFSERV-2-DSA_BUFF_CARVING_INVALID_PORT_SET: Invalid FP port-set 2 for
linecard 2. Valid range of
port-set is <0-1>
Configuration changes take effect immediately and appear in the running configuration. Because, under
normal conditions, all ports do not require the maximum allocation, the configured dynamic allocations
can exceed the actual amount of available memory; this is called oversubscription. If you choose to
oversubscribe the dynamic allocation, a burst of traffic on one interface might prevent other interfaces
from receiving the configured dynamic allocation, which causes packet loss.
You cannot allocate more than the available memory for the dedicated buffers. If the system determines
that the sum of the configured dedicated buffers allocated to the queues is more than the total available
memory, the configuration is rejected, returning a syslog message similar to the following.
00:04:20: %S50N:0 %DIFFSERV-2-DSA_DEVICE_BUFFER_UNAVAILABLE: Unable to allocate
dedicated buffers for
stack-unit 0, port pipe 0, egress port 25 due to unavailability of cells
Dell Networking OS Behavior: When you remove a buffer-profile using the no buffer-profile [fp
| csf] command from CONFIGURATION mode, the buffer-profile name still appears in the output of
the show buffer-profile [detail | summary] command. After a line card reset, the buffer profile
correctly returns to the default values, but the profile name remains. Remove it from the show buffer-
profile [detail | summary] command output by entering the no buffer [fp-uplink |csf]
linecard port-set buffer-policy command from CONFIGURATION mode and the no buffer-
policy command from INTERFACE mode.
Display the allocations for any buffer profile using the show commands, shown in the following
examples. Display the default buffer profile using the show buffer-profile {summary | detail}
command from EXEC Privilege mode, also shown in the following examples.
Dell#show buffer-profile detail interface gigabitethernet 0/1
Interface Gi 0/1
Buffer-profile -
Dynamic buffer 194.88 (Kilobytes)
Queue# Dedicated Buffer
(Kilobytes)
0 2.50
1 2.50
2 2.50
3 2.50
4 9.38
5 9.38
6 9.38
7 9.38
Dell#show running-config interface tengigabitethernet 2/0 !
interface TenGigabitEthernet 2/0
no ip address
mtu 9252
switchport
948
Buffer Packets
256
256
256
256
256
256
256
256
Z-Series Debugging and Diagnostics