Create traffic descriptors (TD)

Procedure 9-4.3: Create traffic descriptors (TD)

Overview

Use this procedure to create traffic descriptors.

Use the Web GUI or the ent-mpls-td TL1 command create a traffic descriptor.

The ENT-TMPLS-TD command creates a TD (Traffic Descriptor) also called MPLS Tunnel Resource Descriptor. A TD can be associated to Tunnels using ED-TMPLS-TUNNEL commands. A TD can be associated to PseudoWires using ED-TMPLS-PW commands. A TD is a set of CIR, CBS, PIR and PBS parameters used by the system for bandwidth checks related to "port bit rate" or "Virtual Transport port bit rate" on which Tunnels/PseudoWires are defined.

You can use the following parameters for conditioning MPLS packets:

CIR — MPLS Committed Information Rate. It is the maximum rate (Kbit/sec) with high priority guaranteed for the Tunnel/PseudoWire packets delivery.
CBS — MPLS Committed Burst Size. It is the maximum burst size (byte) with high priority guaranteed for the Tunnel/PseudoWire packets delivery.
PIR — MPLS Peak Information Rate. It is the maximum peak rate allowed (Kbit/sec) for the Tunnel/PseudoWire.
PBS — MPLS Peak Burst Size. It is the maximum burst rate allowed (byte) for the Tunnel/PseudoWire.

CIR and PIR values are used for connection admission control (CAC) checks with respect to both input Ethernet flows. CBS and PBS values are used only for CAC checks with respect to the corresponding parameters of the input Ethernet flows. When the TD is referenced by a Tunnel (or PseudoWire) then the system checks if CIR [lE ] (transport port bandwidth) on which the Tunnel (or PseudoWire) is defined. All CAC checks are involved when this TD is used by a Tunnel (PseudoWire).

Refer to the Alcatel-Lucent 1850 Transport Service Switch (TSS-5) TL1 Command Guide for T-MPLS, for help on using TLI commands.

Step


1	Login to the VLNC42B.
2	From the Navigation menu, select TMPLS → Quality of Service → Traffic Descriptor Configuration. Equivalent TL1 command: `ent-tmpls-td`. Result: The Traffic Descriptor Configuration screen displays.
3	In the Traffic Descriptor drop-down box, select `Create` to create a new profile or select an existing profile to modify.
4	Enter the following parameters as required, then click Submit to modify the existing TD or create a new TD. Equivalent TL1 command: enter `ENT-TMPLS-TD:[TID]::[CTAG]:::CIR=,CBS=,PIR=,PBS=;`. Parameters: CIR is a positive integer (Kbit/sec). The CIR value must be [lE ] PIR value. CBS is a positive integer (Bytes). The CBS value must be [lE ] PBS value. PIR is a positive integer (Kbit/sec). The PIR value must be [gE ] CIR value. PBS is a positive integer (Bytes). The PBS value must be [gE ] CBS value. Result: An Access Identifier (AID) is specified for the TD that can be used in a Tunnel (or PseudoWire). The name of the TMPLS Traffic Descriptor is MPLSTD-n, where n is 1 to 750. The system assigns the name to the newly created TMPLS TD. Example: `ENT-TMPLS-TD:::QOS006:::CIR=48,CBS=12000,PIR=64,PBS=16000;`. End of steps