Examples of QoS implementation

Table 60: Administration commands for Example 3

CommandMeaning

8.random-detect dscp-based

If the default queue starts to get full, randomly discard packets in this queue based on DSCP (lower values get discarded first).

9.interface Serial0 description T1 ip address 172.16.0.1 service-policy output voipQoS

Apply the “voipQoS” policy outbound on this interface.

If any of the endpoints are incapable of tagging, the “dscp 46” can be removed from access list

101.Then any traffic between the two IP Telephony subnetworks, regardless of the tag, is in the class “VoIP.”

Converged infrastructure LAN switches

X330 WAN Module

The new X330WAN versions contain a predefined queue management strategy for IP Telephony that is called CBQ. Use the following procedure to activate CBQ:

Table 61: X330 WAN Module administration commands

Command

Meaning

 

 

1.set qos policy-source

Define DSCP-CoS mapping.

local

 

 

 

! no external policy source

 

 

 

2.ip access-list-name 100

set up access-list 100 with name “voice”.

voice

 

3.ip access-list-dscp operation 100 34 fw7

4.ip access-list-dscp operation 100 46 fw6

The X330 WAN has four queues with eight behaviors. fw6 and fw7 are different behaviors within the top strict priority queue.

In access-list 100, map DSCP 46 to the fw6 queue.

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Avaya 555-245-600 manual Converged infrastructure LAN switches, X330 WAN Module