Riverstone Networks WICT1-12 - Manual (Page 568)

26-6 Riverstone Networks RS Switch Router User Guide Release 8.0
Traffic Prioritization for Layer-3 & Layer-4 Flows QoS Configuration
26.5 TRAFFIC PRIORITIZATION FOR LAYER-3 &
LAYER-4 FLOWS
QoS policies applied at Layer-3 and -4 allow you to assign priorities based on specific fields in the IP and IPX headers.
You can set QoS policies for IP flows based on source IP address, destination IP address, source TCP/UDP port,
destination TCP/UDP port, type of service (TOS) and transport protocol (TCP or UCP). You can set QoS policies for
IPX flows based on source network, source node, destination network, destination node, source port and destination
port. A QoS policy set on an IP or IPX flow allows you to classify the priority of traffic based on:
• Layer-3 source-destination flows
• Layer-4 source-destination flows
• Layer-4 application flows
26.5.1 Configuring IP QoS Policies
To configure an IP QoS policy, perform the following tasks:
1. Identify the Layer-3 or -4 flow and set the IP QoS policy.
2. Specify the precedence for the fields within an IP flow.
Setting an IP QoS Policy
To set a QoS policy on an IP traffic flow, use the following command in the Configure mode:
For example, the following command assigns control priority to any traffic coming from the 10.10.11.0 network:
Specifying Precedence for an IP QoS Policy
To specify the precedence for an IP QoS policy, use the following command in the Configure mode:
Set an IP QoS policy.
qos set ip
<name> <priority> <srcaddr/mask>
| any
<dstaddr/mask>
| any
<srcport>
| any
<dstport>
| any
<tos>
| any
<port list> | <interface-list>
|
any
<protocol>
| any
<tos-mask>
| any
<tos-precedence-rewrite>
| any
<tos-rewrite>
| any
qos set ip xyz control 10.10.11.0/24
Specify precedence for an
IP QoS policy.
qos precedence ip
[
sip
<num>] [
dip
<num>] [
srcport
<num>]
[
destport
<num>] [
tos
<num>] [
protocol
<num>] [
intf
<num>]