Vp Tunneling; Platform Considerations; Module Requirements - Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual

JUNOSe 11.0.x Link Layer Configuration Guide

VP Tunneling

Virtual path (VP) tunneling enables traffic shaping to be applied to the aggregation
of all VCs within a single VP. Thus, VP tunnels can be used to ensure that the total
traffic transmitted on a VP does not exceed the specified PCR. VP tunneling uses a
round-robin algorithm to guarantee fairness among all of the VCs within the tunnel.
You can change the PCR associated with a tunnel even when VCs have already been
configured on the tunnel. The individual VCs within a tunnel must be specified as
UBR VCs. In other words, they may not have their own traffic-shaping parameters.
The level of support for VP tunneling is dependent on the specific I/O module. See
"Supported Features" on page 12 for details.

Platform Considerations

You can configure ATM interfaces on the following Juniper Networks E Series
Broadband Services Routers:

Module Requirements

For information about the modules that support ATM interfaces on ERX14xx models,
ERX7xx models, and the ERX310 router:
For information about the modules that support ATM interfaces on the E120 and
E320 routers:
10
Platform Considerations
E120 router
E320 router
ERX1440 router
ERX1410 router
ERX710 router
ERX705 router
ERX310 router
See ERX Module Guide, Table 1, Module Combinations for detailed module
specifications.
See ERX Module Guide, Appendix A, Module Protocol Support for information about
the modules that support ATM.
See E120 and E320 Module Guide, Table 1, Modules and IOAs for detailed module
specifications.
See E120 and E320 Module Guide, Appendix A, IOA Protocol Support for information
about the modules that support MLPPP.