Networking
Configuring Quality of Service
Cisco ISA500 Series Integrated Security Appliances Administration Guide
161
4
•
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.
Perform the following configuration tasks to give the voice traffic a higher priority:
•
Go to the Networking > Routing > Static Routing page to add a static routing
rule as follows:
I
S
A500
Vioce
S
witch
IP Phone
(10.1.1.11)
IP
Internet
10.1.1.1
192.16
8
.75.200
192.16
8
.75.1
Destination Address
voice_phone_ip
NOTE:
In this case, you can manually create an
IP address object called “voice_phone_ip” with
the IP address 10.1.1.11 by selecting the
Create
a new address
option.
