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Add a Single Demand

You can add demands in your network to perform a what-if analysis of traffic flow in the network.

To add a single demand:

  1. Select Network > Topology.
    The Topology page is displayed with the topology map at the center and the network information table at the bottom of the page.
  2. In the Demand tab, select Add > Demand.
    The Add Demand page appears on the right side of the page.
  3. Configure the demand parameters as explained in Table 1.
    Note:

    Fields marked with an asterisk (*) are mandatory.

  4. Click Add.
    A confirmation message is displayed on top of the page, indicating that the add demand request is sent successfully. You can then view this demand in the Demand tab of the network information table.
Table 1: Fields on the Add Demand Page
Field Description
Properties
Name Enter a unique name for the demand.

The name can contain only alphanumeric characters and some special characters (greater than (<), less than (<), colon (:), underscore (_), and hyphen (-)).

Node A From the list, select the name of the ingress (source) node of the demand.
Node Z From the list, select the name of the egress (destination) node of the demand.
Planned Bandwidth

Specify the planned bandwidth (along with valid units, with no space between the bandwidth and units) for the demand.

If you specify a value without units, bps is applied.

Valid units are:

  • B or b (bps)
  • M or m (Mbps)
  • K or k (Kbps)
  • G or g (Gbps)
Setup

Specify the setup priority for the demand.

Priority levels range from 0 (highest priority) through 7 (lowest priority), which is the default.

Based on the setup priority, the PCE determines whether a new demand can be established, by preempting an existing demand. The existing demand can be preempted if the setup priority of the new demand is higher than that of the existing demand and the preemption releases enough bandwidth for the new demand.

Hold

Specify the hold priority for the demand.

Priority levels range from 0 (highest priority) through 7 (lowest priority), which is the default.

Based on the hold priority, the PCE determines whether the demand can be preempted or not. If the hold priority for a demand is higher, the demand may not be preempted.