Provisioning Pseudowires

A pseudowire is as a circuit defined by two end points defined by ASG and CSG or which will transport legacy network traffic like ATM/TDM. Using a pseudowire, you can transport legacy traffic over IP, without changing the cell site devices. Pseudowire provisioning is the process of create /modify/delete pseudowires between end points and pushing the configurations corresponding to the pseudowire to the devices. Pseudowires of Martini Based l2circuit will only be provisioned in this feature.

Pseudowire provisioning involves the following steps:

1. Create templates for pseudowires
2. Select Device Source and Source/Destination Endpoint devices
3. Create/Modify/Delete links (pseudowires) between endpoints
4. Confirm Selections
5. Generate configuration for pseudowires generated in step 2 and provision pseudowires by pushing configurations generated in step3 to boxes
6. Filter and test pseudowires

Pseudowire Template Wizard

The pseudowire template wizard allows users to create, edit, and delete templates for pseudowires for:

1. ATM over MPLS
2. Structure-Agnostic Time Division Multiplexing (TDM) over Packet (SAToP)
3. PWE3 over GRE tunnels
4. Ethernet

The template is basically a set of parameters needed for provisioning pseudowires. For each template, a pseudowire configlet will be generated. Separate template will be provided for CSG and ASG if they are not the same.

Psedowire Templates List

When you click Pseudowire Templates, the template list will be displayed:

1. Select a template type and click Add to display the appropriate Add Template dialog box.
2. Select a template and click Delete to the template.
3. Select a template and click Edit to display the Edit Template dialog box. Edit template is similar to Add Template so only adding template is described in the following section.
4. You can also export and import templates. See Exporting PW Templates and Importing PW Templates.

Adding and Editing Pseudowire Templates

To add/edit a pseudowire template

1. From Pseudowires, click Templates.
2. Select a pseudowire type and click Add.
3. Click Save.

Information common to all types of pseudowire templates

• Name- A unique label for the Pseudowire Template
• Type - Type of Pseudowires. Two types will be supported. These are: TDM (SAToP), ATM, and Ethernet
• Bandwidth - Bandwidth allocated for the Pseudowire.
• MTU - Maximum Transmission Unit. This field will be disabled for TDM (SAToP) as this is not applicable for SAToP.

ATM Pseudowire Template

In addition to the common parameters, ATM Pseudowire Template has the following fields:

• PIC Type: The can have one value – atm2
• Encapsulation Type: atm-ccc-cell-relay and atm-ccc-vc-mux
• Mode drop-down with values of 1-1, 1-N
• Control Word check box
• Maximum Cell Concatenation
• Timeout
• Sequence Number Check drop-down with values of Enable and Disable
• Sequence Number Switchover drop-down with values of Enable and Disable

TDM (SAToP) Pseudowire Template

In addition to the common parameters, TDM (SAToP) Pseudowire Template has the following fields:

• Payload bytes
• Octet Aligned

The following TDM (SAToP) parameters will be supported only for CSG

• Jitter Buffer (milliseconds)
• Dynamic Timestamping with values On, Off
• Packet Loss Threshold
• Packet In Sequence Threshold
• Setup Synchronization Packets and Time
• Alarm Set and Clear (seconds)
• Replacement Policy
• SSRC

Ethernet Pseudowire Template

In addition to the common parameters, the Ethernet pseudowire template also has Encapsulation.

Encapsulation methods supported are:

• ethernet-ccc
• vlan-ccc
• extended-vlan-ccc

Exporting Pseudowire Templates

You can export pseudowire templates in xml format.

To export Pseudowire Templates

1. Click Export. The Save File dialog box appears. All the pseudowire templates are exported into an xml file.

   

2. Click Export. The Save File dialog box appears. All the pseudowire templates are exported into an xml file.

Importing Pseudowire Templates

You can import a pseudowire which you have earlier exported and saved.

To import Pseudowire Templates

1. Click Import in the Pseudowire Templates dialog box. The Import PW Templates dialog box appears.

   

2. Click Browse… and select the file you wish to import.
3. Select one of the option buttons: Ignore; Merge; Override
   • Ignore—(Default) An existing record stored in the JUNOScope server takes precedence over any imported record. The imported record is ignored and the existing record is not affected. Any imported record that does not exist in the JUNOScope server is inserted.
   • Merge—If a record exists in the JUNOScope server and also exists in the imported record, the imported record is merged with the existing record and is augmented as necessary. If an imported record is in conflict with an existing record, the imported record takes precedence over the existing record. The existing record is merged with the imported record; however, the fields of the imported record take precedence over the fields of the existing record. Any imported record that does not exist in the JUNOScope server is inserted.
   • Override—All records in the JUNOScope server are deleted, then all imported records are inserted. Before the override operation occurs, a message window appears with the following confirmation prompt: “ The import with override option will delete all the existing records. Do you want to continue?” Select Yes or No to continue.
4. Click Import.

Provisioning Pseudowires

Pseudowire provisioning is the process of createing/modifying/deleting pseudowires between end points and pushing the configurations corresponding to the pseudowire to the devices.

The pseudowire provisioning wizard has four steps.

Step 1: Select Device Source and Source and Destination Endpoint devices

In this step you choose the device source as well as devices for Source and Endpoint of pseudowire.

You can choose one of the device groups from a list of device groups already created by selecting the radio button "Select device groups". Device groups can be created by grouping devices dynamically based on somefiltering criteria on location, name, hostname, model, comment using Settings > Groups wizards. Alternatively, devices can be grouped based on static labels using Settings > Labels wizard.

You can also directly select devices already added to JUNOScope by selecting the Select Devices Directly radio button.

To select device source and source and destination endpoint devices

1. Select the Select Device(s) Directly check box: in that case, select a device under Select Devices.
2. Based on the radio button selection, list for Select a ASG drop-down and Select ASG(s)/CSG(s) list box will be populated.
3. Select a ASG drop-down has M-Series boxes which can act as ASG. User can choose a ASG from the Select a ASG drop-down list.
4. You can select a Filter Find ASGs/CSGs that include the following to list ASGs and CSGs to be displayed.
5. Filter criteria can be applied to Device Name, Device Hostname, Location,Comment and criteria can be contains, not contains, starts with, ends with.User can provide Expression in the textbox.
6. Click Show to display all the devices that satisfy the filter criteria.
7. Click Clear to clear the filter and display the default list of devices. Click Next to go to Step 2.
8. Click Next to go to Step 2 of the wizard.

Step2 Add/Edit/Delete Pseudowire

In this step users are allowed to create new pseudowires as well as modify/delete/view an existing pseudowire.

Pseudowires already provisioned or newly created for provisioning for the devices that are selected in step 2 of the wizard are shown at the bottom of wizard.

• You can select a pseudowire from the list and click Edit to modify the details. You can select a pseudowire from the list and click Delete to delete it.
• You can select a pseudowire from the list and click Delete to delete it.

To add or modify a pseudowire:

1. Select the Source Device Name and Destination Device Name from the respective drop-downs.
2. Select and Interface Type. The options are: TDM (SAToP), ATM II, Ethernet
3. Select a Template and Select a Tunnel from the respective drop-downs. The templates in the drop-down depend on the interface type selected.
4. Specify the Virtual Circuit ID and provide a Description. The description is optional.

   If the Virtual Circuit ID is not specified, a number is automatically generated.

5. Specify the VCI and VPI for ATM II: these will be the same for both endpoints. If the interface type is not ATM, then VPI field is disabled.
6. Specify the VLAN if the interface type is Ethernet. VLAN ID is same for both endpoints. If the interface type is not Ethernet, then VLN ID is disabled.
7. For the Source Endpoint and Destination Endpoint, specify the following:
   1. Device Name
   2. CE Interface: CE-facing interface. The drop-down lists the interfaces available for the endpoints specified.
   3. LSP Name: This is optional. The drop-down lists LSPs configured over the endpoints specified.
   4. Logical Unit (number): If you do not specify this, the system automatically assigns a number.
   5. Select a GRE Interface and a Logical Unit for it.
8. Click Add Entry. The pseudowire is listed at the bottom of the wizard.

The table at the bottom of the wizard displays:

• State: State can be one of the following:
  • New: If the pseudowire is new. The state field is displayed in blue.
  • Modified: If a exiting pseudowire is modified. The state is displayed in red.
  • Modified: If a exiting pseudowire is modified. The state is displayed in red. Unchanged: If a existing pseudowire is unchanged. The state is displayed in green.
• Source Device Name
• Source CE Interface
• Destination Device Name
• Destination CE Interface
• Virtual Circuit ID

Note: You can click Force Deploy to push the configuration to the devices even without making changes, if you are editing a pseudowire.

Step 3: Confirm Add/Edit/Delete Pseudowire selections

In this wizard you can Confirm the addition, modification, or deletion of the pseudowire; or go to the Previous step.

Click Confirm to go to Step 4 of the wizard

Step 4: Provision Pseudowires

In this step configurations are generated for pseudowires created in step3 and are pushed to the devices.

Configurations can be pushed either real time or can be scheduled. Alternatively, pushing the configuration can be saved as a named operation.

Configurations are first pushed to the ASG devices followed by CSG devices by using a sequential task.

If the configurations can not be pushed to the ASG, it will be rolled back. Even if configuration can not be pushed to some CSGs, the operation will proceed.

To provision the pseudowires configured to the devices

1. Select the Now radio button to push the configuration to the devices in realtime.
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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