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Allied Telesis x900-48 series Example 2-3: Setting the Layer 3 (TOS/DCSP) priority per ingress port, Example 2-4: Setting the Layer 3 (TOS/DSCP) priority per VLAN

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Page 9 | AlliedWare™ OS How To Note: QoS configuration

2. Setting the priority on a packet

Example 2-3: Setting the Layer 3 (TOS/DCSP) priority per ingress port

Use the same configuration provided in Example 2-

on page 7, but change the following line:

set qos dscpmap=premarking dscp=<incoming-dscp> newpriority=<new-

priority>

set qos dscpmap=premarking dscp=<incoming-dscp> newdscp=<new-value>

Example 2-4: Setting the Layer 3 (TOS/DSCP) priority per VLAN

Use the same configuration provided in Example 2-2 on page8, but change the following line:

set qos dscpmap=premarking dscp=<incoming-dscp> newpriority=<new-

priority>

set qos dscpmap=premarking dscp=<incoming-dscp> newdscp=<new-dscp>

Contents

Main AlliedWareTM OS How To | Introduction What information will you find in this document? Which product and software version does this information apply to? Configure QoS on AT-9900, x900-48, and x900-24 Series Switches Page Example -2: setting the maximum bandwidth limit per ingress port Example -3: Setting the maximum bandwidth limit for each user Example -4: Setting the maximum bandwidth limit for each IP subnet Example -5: Setting the maximum bandwidth limit of VLANs 2. Setting the priority on a packet : Setting the Layer 2 (VLAN/802. Here we assign different 802. Example 2- p) priority per ingress port Example 2-2: Setting the Layer 2 (VLAN/802. p) priority per VLAN to 20, to 6, 5 and 4 respectively. Example 2-3: Setting the Layer 3 (TOS/DCSP) priority per ingress port Example 2-4: Setting the Layer 3 (TOS/DSCP) priority per VLAN 3. Setting the egress queues Example 3- : Setting the egress queue according to the L2 priority of the incoming packet Example 3-2: Setting the egress queue according to the ingress port This set of commands will set the egress queue of any traffic received from port to egress queue 6, from port 2 to egress queue 5, etc. Example 3-3: Configuring WRR for egress queues Full QoS scenario 1 ISP : tiered services for a single customer Set the egress bandwidth limiting Identify the types of traffic Page Page Page 17 | AlliedWare OS How To Note: QoS configuration 1 C E 2 E RED curvesa refresher Colours of packets over time C5E6E7 Full QoS scenario 2: bandwidth limiting of multiple customers Internet XStep First, let us consider the basic bandwidth limit that has been imposed on each customer: -5 of the switch. Also, we will assume that port 24 provides the uplink connection to the Internet. The configuration required to impose these bandwidth limits would be: Limiting the outgoing traffic: Limiting the incoming traffic: