Procedure 14-5.1: Provision differentiated services class

- Overview

Use this procedure to create a new or modify an existing differentiated service (DiffServ) class and define the match criteria for the class.

The DiffServ class defines the packet filtering criteria and is used to define traffic classification.

- Match conditions

The following match conditions are supported:

  • Class of Service: This match condition is the only tag in a single tagged packet or the first or outer 802.1Q tag of a double VLAN tagged packet.

  • Secondary Class of Service: This match condition is based on the p-bits of the inner 802.1Q tag of a double VLAN tagged packet.

  • Destination IP Address: This match condition is based on the destination IP address of a packet.

  • Destination Layer 4 Port: This match condition is based on the destination layer 4 port of a packet using a single keyword or numeric notation.

  • Destination MAC Address: This match condition is based on the destination MAC address of a packet.

  • Ethertype: This match condition is based on the value of the ethertype.

  • Any: This match condition is for all packets.

  • IP DSCP: This match condition is based on the value of the IP DiffServ Code Point (DSCP) field in a packet, which is defined as the high-order six bits of the Service Type octet in the IP header. The low-order two bits are not checked.

  • IP Precedence: This match condition is based on the value of the IP Precedence field in a packet, which is defined as the high-order three bits of the Service Type octet in the IP header. The low-order five bits are not checked.

  • IP TOS: This match condition is based on the value of the IP TOS field in a packet, which is defined as all eight bits of the Service Type octet in the IP header.

  • Protocol: This match condition is based on the value of the IP Protocol field in a packet using a single keyword notation or a numeric value notation

  • Reference Class: This match condition adds a set of match conditions defined for another class to the specified class definition.

  • Source IP Address: This match condition is based on the source IP address of a packet. Only the bits set in the mask will contribute to the match condition.

  • Source IP Layer 4 Port: This match condition is based on the source layer 4 port of a packet using a single keyword or numeric notation.

  • Source MAC Address: This match condition is based on the source MAC address of a packet.

  • VLAN: This match condition is based on the value of the layer 2 VLAN Identifier field. This is the only tag in a single tagged packet or the first or outer tag of a double VLAN tagged packet.

  • Secondary VLAN: This match condition is based on the value of the layer 2 secondary VLAN Identifier field (the inner 802.1Q tag of a double VLAN tagged packet). The secondary VLAN id is a value in the range 1 to 4095.

- Before you begin

Obtain the work instructions for this procedure.

Step
 
1

Log in to the VLNC4x circuit pack being provisioned.

2

From the Navigation menu, select QoS → Differentiated Services → Class Configuration.

Result:

The DiffServ Class Configuration screen appears.

3

Enter the required parameters, then click Submit.

4

From the Navigation menu, select QoS → Differentiated Services → Class Summary and verify that the required parameters were provisioned correctly.

Result:

The DiffServ Class Summary screen appears.

End of steps

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