Provision and Manage P2MP Groups

Automatic Rerouting Around Points of Failure

For PCEP-provisioned P2MP groups only, sub-LSPs are dynamically rerouted around points of failure along the path of the tree. You should not necessarily expect to see the Op Status in the network information table change during the route because it happens very quickly. The topology map displays a red F on any failed link or node, and you can see how the path is rerouted around those markers.

Viewing P2MP Groups and Their Sub-LSPs

P2MP group information is displayed in the P2MP Group tab of the network information table, and is also reflected in the topology map.

To display P2MP Group information, use the following steps:

1. On the tabs bar of the network information table, click the plus sign (+) and select P2MP Group from the drop-down menu as shown in Figure 1.

   Note:

   When you launch the web UI, only the Node, Link, and Tunnel tabs are displayed by default; P2MP Group is one of the tabs you can optionally display.

   Figure 1: Adding the P2MP Group Tab

2. The P2MP Group tab is added to the tab bar and the contents are displayed as shown in Figure 2.

   Figure 2: P2MP Group Tab in the Network Information Table

   Columns for group attributes are shown across the top. You can add columns and filter the display in the usual ways. See Sorting and Filtering Options in the Network Information Table for more information.

3. Click a row in the table to highlight the path in the topology map.

4. Right-click a row in the table to display either a graphical tree view of the group, or a list of the sub-LSPs that make up the group. Figure 3 shows these options.

   Figure 3: Right-Click a P2MP Group

   The tree diagram opens as a separate pop-up as show in Figure 4.

   Figure 4: P2MP Group Graphical Tree Diagram

   When you select to view sub-LSPs, the sub-LSPs that make up the group are displayed in a new tab in the network information table. On the list of sub-LSPs, you have all the display options normally available on the Tunnel tab. See Network Information Table Overview for more information.

   Note:

   The sub-LSP tab in the network information table is for display purposes only; you cannot perform Add, Modify, or Delete functions from there. But the sub-LSPs are also displayed in the Tunnel tab, where you can perform those actions.

In the P2MP Group tab of the network information table, the Control Type column displays Device Controlled for NETCONF-provisioned groups and PCEInitiated for PCEP-provisioned groups.

Add a P2MP Group

On the P2MP Group tab of the network information table, click Add at the bottom of the table. The Add P2MP Group window is displayed as shown in Figure 5. Red asterisks denote required fields.

Figure 5: Add P2MP Group Window, Properties Tab

Table 1 describes the data entry fields in the Properties tab of the Add P2MP Group window.

The Advanced tab includes the fields shown in Figure 6 and described in Table 2.

Figure 6: Add P2MP Group Window, Advanced Tab

The Design tab includes the Routing Method options shown in Figure 7.

Figure 7: Add P2MP Group Window, Design Tab

For NETCONF-provisioned P2MP, the default routing method is routeByDevice (since it uses NETCONF as the provisioning method). You can select a different routing method in which the PC server calculates the path for all the sub-LSPs. For PCEP-provisioned P2MP, select default as the routing method. Do not use routeByDevice for PCEP-provisioned P2MP because an empty ERO would be sent. The behavior for all routing methods is similar to P2P LSP provisioning.

The Scheduling tab is identical to the one you use to provision P2P LSPs.

For P2MP, the User Properties tab is used for P2MP tree to MVPN service mapping (not supported for PCEP-provisioned P2MP groups). See Templates for Netconf Provisioning for more information.

Once you are finished defining the group, click Submit. The group is added to the network information table, on the P2MP Group tab.

Modifying a P2MP Group

Modifying a P2MP Group

To modify a P2MP group, select the group in the P2MP Group tab of the network information table, and click Modify at the bottom of the table. The Modify P2MP Group window is displayed as shown in Figure 8.

Figure 8: Modify P2MP Group Window, Properties Tab

Using the tabs on the Modify P2MP Group window, you can change the value of attributes (affects all sub-LSPs in the group), add or remove destination nodes (which adds or removes sub-LSPs), and set up or change scheduling for the group.

Note:

There are actually two ways you can remove sub-LSPs from a group:

• In the Properties tab of the Modify P2MP Group window, select the destination node(s) in the Node Z field and click the minus sign (-).

• In the Tunnel tab of the network information table, select the sub-LSP to be removed and click Delete at the bottom of the table.

When you have finished making changes, click Submit.

Note:

The following six attributes must be the same for all sub-LSPs in a P2MP group, and can therefore only be modified at the group level, using the Modify P2MP Group window:

• Bandwidth

• Setup

• Hold

• ColoringIncludeALL (cannot be modified for PCEP-provisioned groups in this release)

• ColoringIncludeANY (cannot be modified for PCEP-provisioned groups in this release)

• ColoringExclude (cannot be modified for PCEP-provisioned groups in this release)

You can modify other attributes on the individual sub-LSP level (path or Max Hop, for example). To modify sub-LSP attributes, select the tunnel in the Tunnel tab of the network information table and click Modify at the bottom of the table. If you attempt to modify one of the six group-level-only attributes at the sub-LSP level, an error message is displayed when you click Submit and the change is not made.

Note:

If the sub-LSPs tab in the network information table fails to update after modifying group or sub-LSP attributes, you can close the sub-LSPs tab and reopen it to refresh the display. There is also a refresh button at the bottom of the table that turns orange when prompting you for a refresh. When you click the refresh button, the web UI client retrieves the latest P2MP sub-LSP status from the NorthStar server.

Deleting a P2MP Group

When you delete a P2MP group, all sub-LSPs that are part of that group are also deleted.

To delete a P2MP group, select the group on the P2MP Group tab of the network information table and click Delete at the bottom of the table. Respond to the confirmation message to complete the deletion.

Alternatively, you can use the Tunnel tab of the network information table to delete all the sub-LSPs in the P2MP group, which also deletes the group itself.