Supported Platforms
Related Documentation
Configuring the Maximum Number of Pseudowire Logical Interface Devices Supported on the Router
You must set the maximum number of pseudowire logical interface devices (pseudowire tunnels) that the router can use for subscriber logical interfaces. You can specify a maximum of 2048 pseudowire logical interface devices for an MX Series router. Each pseudowire device supports a maximum of 4000 subscriber logical interfaces.
A PFE can host a maximum of 2048 pseudowire logical interface devices, which is the chassis maximum. This PFE hosting support provides the configuration flexibility needed for special cases that might occur for business edge scenarios. However, you can exceed the available PFE resources as you configure additional services on the pseudowire logical interface devices ports. To support a scaled configuration, ensure that you populate the appropriate number of PFEs for the chassis, and that you distribute the pseudowire logical interface devices across the PFEs in such a way that ensures that no PFE is overwhelmed by the anticipated peak load. As part of the network planning for your particular deployment, you must consider the exact mix of the distribution of the pseudowire logical interface devices and the services associated with the devices.
 | Best Practice: A configured pseudowire logical interface device consumes resources from shared pools even when the device has no active subscriber logical interfaces. To conserve resources, do not deploy an excessive number of pseudowire devices that you do not intend to use. |
To configure the number of pseudowire logical interface devices that you want the router to support:
- Specify that you want to configure the pseudowire service.[edit chassis]user@host# edit pseudowire-service
- Set the maximum number of pseudowire logical interface
devices.[edit chassis pseudowire-service]user@host# set device-count 500
