Alcatel-Lucent 7210 SAS M Configuration Manual page 440

System Resource-Profile Commands
NOTE: A reboot is needed for the change to take effect.
Default
no sap-ingress-queues
mbs-pool
Syntax mbs-pool {node|port}
Context configure>system>resource-profile>qos
Description
NOTE: This command is available only on 7210 SAS-T node.
On 7210 SAS-T, the user has an option to configure the MBS pool per node or per port. This
command allows the user to configure the MBS pool as per their requirement. A reboot is needed
whenever the value of this parameter is changed for the new values to take effect.
If user configures per node MBS pool, then each of the 8 queues available on a port, is allocated a
CBS amount of committed buffers. The remaining amount of buffers is allocated towards the MBS
pool that is available for sharing among all the queues across all the ports of the node. In other words
the MBS pool is per node.
If the user configures per port MBS pool, then the available buffers are equally divided up among the
all the ports of the node. With this scheme of allocation, each port gets some portion of the buffers for
its exclusive use. Some of these buffers are allocated towards the CBS per queue and the rest is
assigned to the per port MBS pool. To allow operators better control over which ports get larger
portion of queue buffers, operator is provided with an option to decommission ports. The commands
associated with decommissioning of ports are only allowed when the node is booted with the option
to use per-port MBS pool. In other words, decommission entries are executed only if the mbs-pool
parameter is set to 'port'.
If mbs-pool parameter is set to 'node' and decommission entries are configured, then an error should
be reported. All decommission entries must be removed if mbs-pool parameter needs to be changed
from port to node.
Default
The default value for this command is 'node'.
Parameters
node — Use per node MBS pool.
port — Use per port MBS pool, along with an option to relocate buffers to ports that need better burst
handling capability using the decommissioning commands.
Page 440
Guide
7210 SAS M, T, X, R6 Basic System Configuration