3Com MSR 50 Series, Руководство по настройке

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1692 C
HAPTER
89: MPLS Q
O
S C
ONFIGURATION
MPLS QoS
Configuration
Example
Configuring QoS for
Traffics in the Same VPN
Network requirement
As shown in Figure 475 , the network is described as following:
■
Both CE 1 and CE 2 belong to VPN 1.
■
The bandwidth of the PE 1-P link is 2M.
■
The bandwidth of the PE 2-P link is 2M.
It is required to define different QoS guarantee levels for the traffics with different
priority levels in the VPN 1.
The configuration in this example includes these two parts:
First, configure MPLS VPN on the CE 1, PE 1, P, PE 2 and CE 2.
■
Run OSPF between PE 1, P and PE 2.
■
Create MP-EBGP neighbors between PE and CE.
■
Create MP-IBGP neighbors between PEs.
Second, configure MPLS QoS on the PE 1 and P.
■
Configure QoS policy on the ingress interface Ethernet1/1 on the PE 1 and set
EXP domain value according to the DSCP attribute of MPLS packets.
■
On the Router P, identify traffics according to their EXP domain value and
configure traffic-specific CBQs: EXP1 traffics with 10% bandwidth, EXP2
traffics with 20% bandwidth, EXP3 traffics with 30% bandwidth and EXP4
traffics with 40% bandwidth; delay guarantee is available for EXP4 traffics.
Define QoS policy qos policy policy-name Required
classifier tcl-name behavior
behavior-name
Required
Bind the classes of MPLS QoS
policy with the traffic behaviors
Exit the current view quit -
Enter
interface
view or port
group view Enter
interface
view interface interface-type
interface-number
Use either command
Configured in interface view, the
setting is effective only on the
current interface; configured in
port group view, the setting is
effective on all the ports in the
current port group.
For the information about port
group configuration, refer to
“Link Aggregation
Configuration” on page 351
.
Enter port
group
view port-group aggregation
agg-id
Apply QoS policy on
interface qos apply policy policy-name
{ inbound | outbound
[ dynamic ] }
Required
To do... Use the command... Remarks