User's Manual

Networking
Configuring the Quality of Service
Cisco ISA500 Series Integrated Security Appliance Administrator Guide 148
4
• SP: Indicates that traffic scheduling for the selected queue is based strictly
on the queue priority.
• WRR: Indicates that traffic scheduling for the selected queue is based
strictly on the WRR weights. If WRR is selected, the predefined weights 8, 4,
2 and 1 are assigned to queues 1, 2, 3 and 4 respectively.
• SP+WRR: Integrates the SP and WRR queues. It applies SP to two groups.
The first group contains the PQ and the second group contains other queues.
If SP+WRR is selected, the PQ is assigned to the Q1 and the predefined
weights 4, 2 and 1 are assigned to Q2, Q3, and Q4 respectively. There is no
limit for PQ, indicating that WRR queues may be starved if PQ is always
sending traffic greater than the maximum bandwidth of the LAN ports.
STEP 4 Click Save to apply your settings.
NOTE Next Steps:
• To specify the LAN QoS classification method, go to the LAN QoS ->
Classification Method page. See Configuring the LAN QoS Classification
Methods, page 148.
• To map the CoS to LAN queues, go to the LAN QoS -> Mapping CoS to
Queue page. See Mapping CoS to LAN Queue, page 149.
• To map the DSCP to LAN queues, go to the LAN QoS -> Mapping DSCP to
Queue page. See Mapping DSCP to LAN Queue, page 149.
• To configure the default CoS value and trust mode for traffic through each
LAN interface, go to the LAN QoS -> Default CoS page. See Configuring
Default CoS, page 149.
Configuring the LAN QoS Classification Methods
Traffic Classification is used to classify the traffic through the LAN interfaces to a
given traffic class so that the traffic in need of management can be identified.
STEP 1 Click Networking -> QoS -> LAN QoS -> Classification Method.
The Classification Method window opens.