Configuring LSQ Interfaces for ATM2 IQ Interfaces Using MLPPP
This example configures an ATM2 IQ interface with MLPPP bundled with link services IQ interfaces. This allows you to configure LFI on ATM virtual circuits.
For this type of configuration, the ATM2 IQ interface must have LLC encapsulation.
The following ATM PICs are supported in this scenario:
- 2-port OC-3/STM1 ATM2 IQ
- 4-port DS3 ATM2 IQ
Virtual circuit multiplexed PPP over AAL5 is not supported. Frame Relay is not supported. Bundling of multiple ATM VCs into a single logical interface is not supported.
Unlike DS3 and OC3 interfaces, there is no need to create a separate scheduler map for the ATM PIC. For ATM, you define CoS components at the [edit interfaces at-fpc/pic/port atm-options] hierarchy level, as described in the Junos® OS Network Interfaces.
 | Note: Do not configure RED profiles on ATM logical interfaces that are bundled. Drops do not occur at the ATM interface. |
In this example, two ATM VCs are configured and bundled into two link services IQ bundles. A fragmentation map is used to interleave voice traffic with other multilink traffic. Because MLPPP is used, each link services IQ bundle can be configured for CRTP.
