Pseudowire Template Wizard

The pseudowire template wizard enables users to create, edit, or delete pseudowire templates for:

  1. ATM

    Note: ATM pseudowires supported on Junos devices are for ATM-II PICs.

  2. Structure-Agnostic Time Division Multiplexing (TDM) over Packet (SAToP)
  3. Ethernet

A template is a set of parameters needed for provisioning pseudowires. .

Pseudowire Templates List

When you click Pseudowire Templates, the template list appears.

Image s001325.gif

From the Pseudowires Templates window, you can:

  1. Add a new template.
  2. Delete an existing template.
  3. Edit a an existing template.
  4. Export or import templates.

Adding and Editing Pseudowire Templates

To add or edit a pseudowire template

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

Table 15: Pseudowire Template Parameters



Common Parameters


A unique label for the Pseudowire Template


Type of Pseudowires. The following three types are supported: TDM (SAToP), ATM, and Ethernet



Control Word check box

Add a control word to the layer 2 encapsulation for the pseudowire

Parameters for ATM and Ethernet


Available values for ATM are atm-ccc-cell-relay and atm-ccc-vc-mux

Available values for Ethernet are ethernet-ccc, vlan-ccc, and extended-vlan-ccc


Bandwidth available for the pseudowire

Parameters for SAToP

Payload size

Allowed range is 1 to 1024

Idle pattern

Allowed range is 0 to 255

Excessive packet loss threshold

Allowed range is 1 to 100

Excessive packet loss sample period

Allowed range is 1000 to 65535 milliseconds.

Jitter buffer latency

Specified in milliseconds.

Parameters for ATM


Allowed options are 1–to-1–vcc, n–to-1-vcc, 1–to-1–vpc, n-to-1-vpc, aal5–pdu and aal5–sdu

Maximum Cell Concatenation

The maximum number of ATM cells that can be concatenated before the packet switched network (PSN) packet is sent out.


The maximum time that the device should wait for the specified number of ATM cells to arrive for concatenation.

If the specified number of ATM cells have not arrived in the specified time period, the device concatenates the ATM cells that have arrived and sends out the PSN packet.

Sequence Number Check

Allowed values are enable and disable

Sequence Number Switchover

Allowed values are enable and disable

ATM Pseudowire Template

Image s001492.gif

TDM (SAToP) Pseudowire Template

Image s001493.gif

Ethernet Pseudowire Template

Image s001322.gif

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.
    Image s001323.gif
  2. Click Save. The Save File dialog box appears. Save the file to a location of your choice.

Importing Pseudowire Templates

You can import a pseudowire template that 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.
    Image s001324.gif
  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 Junos Scope 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 Junos Scope server is inserted.
    • Merge—If a record exists in the Junos Scope 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 Junos Scope server is inserted.
    • Override—All records in the Junos Scope 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.