Provisioning MPLS and GRE Tunnels

JUNOScope supports the following types of tunnels: MPLS RSVP tunnel; MPLS LDP tunnel; and GRE tunnel The MPLS/GRE Tunnel Provisioning proceeds in four steps as described in the following sections.

Step1: Select the source and destination devices.

In this step you choose the device source and destination endpoint devices.

You can select device source by selecting either a group or by selecting devices directly You can choose one of the device groups from a list of device groups already created.

Device groups can be created by grouping devices dynamically based on one of the following filtering criteria: location, name, model, or hostname. Alternatively, devices can be grouped using static labels. When you have selected a device group, all the devices in that group are listed in the Select Devices list.

You can also directly select devices that are already added to JUNOScope from the Select Devices list

To select a device source

1. Select an option button to specify whether you wish to Select Devices Directly or Select a Device Group.
2. If you choose to select devices directly, you can search for devices on the following criteria under Find a device that includes the following:
   • From the Select a Field drop-down list, select one of the following options: Device Name, Device Hostname, Model, Location, and Comment.
   • From the Select an Operator drop-down list, select one of the following options: Contains, Does not Contain, Starts With, Ends with, and Equals.
   • Enter a string and click View to display a list of devices that meet the criteria specified in the preceding steps.

   For example, to list devices that have device names starting with J, select Device Name from the Select Field drop-down list, Starts With from the Select an Operator drop-down list, enter J in the text box, and click View. All devices that have device names starting with J will be listed in the Select Devices list.

3. Select at least two Devices and click Next.

Step 2: Add/Edit/Delete Tunnel

In this step, you can provide details about the tunnel.

Three types of tunnel are supported. These are: MPLS-RSVP, MPLS-LDP, GRE

To Add/Edit/Delete Tunnel

1. From the Tunnel Type drop-down, select a tunnel type. The available values are: MPLS-RSVP, MPLS-LDP, and GRE.
2. From the Source Device and Destination Device drop-down lists, select the source and device names.
3. Under Provide Source Endpoint Details:
   1. Specify an LSP Name and LSP Bandwidth.

      Note: LSP Name is mandatory for MPLS-RSVP tunnel type.

   2. If you want the LSP Name specified in the preceding step to use a static LSP path, select an LSP Path to be used as the Primary path for the LSP Name entered. This field is required only if Tunnel type selected is MPLS-RSVP. For MPLS-LDP and GRE tunnel types, this field is disabled.
   3. If you want the LSP Name specified in step 1 to use a static LSP path, ,select an LSP Path to be used as the Secondary path for the LSP Name entered. This should be different from the Primary LSP Path.

      This field is required only if Tunnel type selected is MPLS-RSVP. For MPLS-LDP and GRE tunnel types, this field is disabled.

      Note: LSP Primary Path and LSP Secondary Path cannot be the same.

   4. From the respective drop-down list, select the Setup Priority, Reservation Priority, and the QoS Priority. These fields are available only when the selected tunnel type is MPLS-RSVP. For MPLS-LDP and GRE, tunnel types, these drop-down lists appear disabled.
   5. Check the Enable Fast Reroute check box to enable fast reroute.

      This field is used only if Tunnel type selected is MPLS-RSVP Otherwise, this field appears disabled.

   6. Specify the Reroute Bandwidth, which is the bandwidth reserved for reroute

      This field is enabled only if Tunnel Type is MPLS-RSVP and the Enable Fast Reroute check box is checked. Otherwise this field is disabled.

   7. Specify the Hop Limit, which is the maximum number of hops.

      This field is enabled only if the tunnel type is MPLS-RSVP and Enable Fast Reroute check box is selected. Otherwise this field is disabled.

   8. Select the corresponding check boxes, if you wish to, Enable Node Link Protection and Enable Link Protection. These check boxes are available only if the tunnel type is MPLS-RSVP. Otherwise, these are disabled.
   9. Select the GRE Interface, if the tunnel type is GRE, from the drop-down.
   10. Specify the Logical Unit for tunnel interface or software tunnel interface.

       This field is required only when tunnel type selected is GRE. For MPLS-RSVP and MPLS-LDP this field is disabled.

4. Repeat step 3 and all the substeps for the Device End Point, under Provide Destination Endpoint Details. Alternatively, click the Copy Source Endpoint Details to use the same settings as the source end point for the destination end point.
5. Click Add Entry to add a record in the list area. For newly created records, the state is shown as New whereas for edited records the state is shown as Modified,
6. Do one of the following:
   • Click Add—To add a new record.
   • Select an existing record and click Edit—To edit an existing record.
   • Select an existing record and click Copy—To copy an existing record.
   • Select an existing record and click Delete—To delete an existing record.
   • Select an existing record and click Force Deploy—To modify a record even though no changes have been made. You can use this option to to push the configuration details to the devices, without making modifications to it, if you are editing the configuration
7. Click Next to go to Step 3 of the wizard or click Previous to go to Step 1 of the wizard.

The tabular area at the bottom of the window displays all the tunnels between devices that are selected in Step 1 of the wizard.

The following information is presented in the table:

• State

  State reflects the state of the record, namely:

  • New: If a record is newly added.
  • Modified: If a record is modified.
  • Unchanged: If a record is not modified.

    Note: If multiple users are simultaneously accessing this wizard, each user will have different working records and changes in records will be stored at session level.

• Tunnel Type
• Source Device
• Source LSP
• Source GRE Interface
• Destination Device
• Destination LSP
• Destination GRE Interface

Step 3: Confirm Tunnel selections

In this step you confirm the creation, deletion, or modification of the Tunnel Parameters that you selected in step 2. .

To confirm Tunnel selections

1. Click Confirm to go to Step 4 of the wizard (Provision Tunnels).
2. Click Previous to go to Step 2 of the wizard (Add/Edit/Delete Tunnels).

Step 4: Provision MPLS/GRE Tunnels

In this step configurations are generated for MPLS/GRE tunnels created in step 3 and are pushed to devices.

To provision MPLS/GRE Tunnels

1. Select the Now radio button to push the configuration to the devices immediately.
2. Select the save Operation As button radio button and provide a name for the operation: the configuration can be saved as a named operation.
3. Select the Schedule radio button to select a schedule. The configurations will be pushed at the scheduled time.

   Note: The schedule can be chosen from those defined in Settings. See Settings

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