Networking
Configuring Quality of Service
Cisco ISA500 Series Integrated Security Appliances Administration Guide 162
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STEP 2 To edit the policy profile settings associated with a WAN interface, click the Edit
(pencil) icon.
The Policy Profile to Interface Mapping - Edit window opens.
STEP 3 Enter the following information:
•Interface: The name of the WAN interface with which the policy profiles are
associated.
•Inbound Policy Name: Choose an inbound policy profile for managing
inbound traffic through the selected WAN interface.
•Outbound Policy Name: Choose an outbound policy profile for managing
outbound traffic through the selected WAN interface.
STEP 4 Click OK to save your settings.
STEP 5 Click Save to apply your settings.
WAN QoS Configuration Example
This section provides a configuration example on setting up WAN QoS to give the
voice traffic a higher priority for a phone system or the SPA phones through the
security appliance.
Use Case: An IP phone is connected directly to the voice switch behind the
security appliance or the LAN port the security appliance. Both voice and data
traffic is sent out through the WAN port of the security appliance.
Solution: For the voice traffic from LAN to WAN (outbound voice traffic), make sure
that the outbound voice traffic is handled by the highest priority queue (Q1) and
other outbound traffic such as data traffic is handled by the lower priority queues
(Q2 to Q6). For the voice traffic from WAN to LAN (inbound voice traffic), CoS and
DSCP will be remarked so that the voice switch can prioritize the inbound voice
traffic by incoming CoS or DSCP.
ISA500
Vioce Switch
IP Phone
(10.1.1.11)
IP Internet
10.1.1.1 192.168.75.200
192.168.75.1
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