Virtual Interfaces with the BGF Overview
This topic describes the use of virtual interfaces with the BGF.
The BGF and the gateway controller communicate through virtual interfaces. Junos interface names are not known or communicated to the gateway controller. You configure a virtual interface on the BGF, and this virtual interface is provided to the gateway controller. The virtual interface configuration includes the media service for the virtual interface, which contains the name of the NAT pool.
Included in the H.248 message exchange between the gateway controller and the virtual BGF is a virtual interface identifier. This identifier instructs the BGF which media resources to use.
