Dell S6100 Configuration Manual page 978

buffer packet-pointers
• Apply the buffer profile to a line card.
CONFIGURATION mode
buffer fp-uplink linecard
• Apply the buffer profile to a CSF to FP link.
CONFIGURATION mode
buffer csf linecard
Examples of Viewing Buffer Information
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: %DIFFSERV-2-DSA_BUFF_CARVING_INVALID_PORT_SET: Invalid FP port-set 2 for linecard
2. Valid range of port-set is <0-1>. However, the configuration still appears in the running-config.
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 allocation 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: .
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 no buffer [fp-uplink |csf] linecard
port-set buffer-policy from CONFIGURATION mode and no buffer-policy from INTERFACE mode.
To display the allocations for any buffer profile, use the show commands.
To display the default buffer profile, use the show buffer-profile {summary | detail} command from EXEC Privilege mode.
The following example shows viewing the default buffer profile.
Dell#show buffer-profile detail interface tengigabitethernet 1/1/1/1
Interface Te 1/1/1/1
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
The following example shows viewing the buffer profile allocations.
Dell#show running-config interface tengigabitethernet 1/1/1/1 !
interface TenGigabitEthernet 1/1/1/1
no ip address
mtu 9216
switchport
no shutdown
buffer-policy myfsbufferprofile
978 Debugging and Diagnostics
Buffer Packets
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