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Chapter 11 Avaya P330 Layer 2 Features
116 Avaya P334T-ML User’s Guide
Weighted Queuing
The Weighted Queuing feature allows the user to configure the priority scheme
between the internal priority queues as “Strict Priority” or to configure it as a
Weighted Round Robin (WRR) scheme, with user-configurable weights.
L If the queuing scheme commands are to be implemented on a P330-ML switch
other than the stack master, a session should be opened to the relevant switch.
Implementation of Weighted Queuing in the P330-ML
The user is able to set the Priority scheme to either “Strict” or “WWR.” The choice of
option impacts in the following way on the operation of the modules installed in the
stack.
• When the Priority scheme is set to “Strict”:
— Giga ports — the Low priority queue will transmit only if the High priority
queue has nothing to transmit.
— P334T-ML 10/100 ports — the Lower priority queue will transmit only if
none of the Higher priority queue has nothing to transmit.
• When the Priority scheme is set to ”WWR” with a weight factor ‘n’:
— Giga ports — the High priority queue will transmit ‘n’ packets for each
packet that will be transmitted from the Low priority queue.
— P334T-ML 10/100 ports — The 4 queues will convert into 2 queues (High
and Low); the High priority queue will transmit ‘n’ packets for each packet
that will be transmitted from the Low priority queue.
L By default, the WWR weights between the four P334T-ML priority queues are
1:4:16:64.
Weighted Queuing CLI Commands
The following table contains a list of the CLI commands for the Weighted Queuing
feature. The rules of syntax and output examples are all set out in detail in the
Reference Guide.
In order to... Use the following command...
Switch between the Strict and
Weighted queuing schemes, and to
set the weights
set queuing scheme
Returns the queuing scheme to
WRR with the default weights
set default queuing scheme
Display the current queuing scheme
settings
show queuing scheme