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12.7 Configuration Example 6 - QoS Marking with Port Role
Combination set for Un-restricted using ACL's
With a port role combination of un-restricted, the DS CP value is passed as-is and is not looked at by the
ERS 5500 internal QoS mapping. This does not apply to the p-bit which is looked at, honoured, and
mapped according to the QoS priority mapping table. If you wish to apply QoS to the DS CP value on an
unrestricted port member, either ACL‟s or policies must be defined where you need to map the DS CP
value to the appropriate egress queue. For this example, we will demonstrate how to configure the ERS
5500 to support internal QoS mapping for various DSCP values.
For this example, assume we wish to accomplish the following in regarded to the untagged VLAN 5
ingress port members:
Set a port role of un-restricted with port members 3 to 6
Select queue set 8 with 8 queues
For ingress port members 3-5, we wish to map the following DS CP values. Please use the "show
qos queue-set-assignment" command to display the
o
For DS CP 0x12 (Silver CoS), map to egress queue 5
o
For DS CP 0x1a (Gold CoS ), map to egress queue 4
o
For DS CP 0x22 (Platinum CoS ), map to egress queue 3
To accomplish the above, please follow the configuration steps below.
12.7.1 ERS 5500 Configuration
12.7.1.1 Create VLAN 5
ERS5500: Step 1 – Remove port members from default VLAN and create VLAN 5
5500(config)# vlan members remove 1 3-6
5500(config)# vlan create 5 type port
5500(config)# vlan members add 5 3-6
12.7.1.2 Create Queue Set 8
ERS5500: Step 1 – Add queue set 8; please note that you must reboot the switch for the queue
set to take effect
5500(config)# qos agent queue-set 8
5500(config)# boot
Filters and QOS Configuration for Ethernet Routing Switch 5500
January 2013
Figure 6: DSCP Mapping via Un-re stri cted Port Role
Technical Configuration Guide
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