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Configuring Layer 2 Circuit Transport Mode on ATM MICs
To configure Layer 2 circuit AAL5 or Layer 2 circuit cell relay, perform the following tasks:
- For Layer 2 circuit AAL5 mode, configure logical interface
encapsulation by including the encapsulation statement, specifying
the atm-ccc-vc-mux encapsulation type:encapsulation atm-ccc-vc-mux;
You can include this statement at the following hierarchy levels:
- [edit interfaces interface-name unit logical-unit-number]
- [edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number]
- For Layer 2 circuit cell-relay mode, configure physical
interface encapsulation by including the encapsulation statement
at the [edit interfaces interface-name] hierarchy level, specifying the atm-ccc-cell-relay encapsulation
type:[edit interfaces interface-name]encapsulation atm-ccc-cell-relay;
You can also include the encapsulation atm-ccc-cell-relay statement at the [edit interface interface-name unit logical-unit-number] hierarchy level.
When you use the configuration given in the preceding steps, keep the following points in mind:
- The chassis-level configuration for atm-l2-circuit-mode is not available for ATM MICs.
- The absence of the chassis-level configuration for atm-l2-circuit-mode does not indicate null control word.
For more information about Layer 2 circuits, see the Junos OS VPNs Configuration Guide and the Junos OS Routing Protocols Configuration Guide. For a comprehensive example, see the Junos OS Feature Guides.
