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    Layer 2 Services over MPLS Platform Considerations

    To configure layer 2 services over MPLS, you must first configure the underlying layer 2 service (ATM, bridged Ethernet, Fast Ethernet, Gigabit Ethernet, 10-Gigabit Ethernet, Frame Relay, or HDLC) and MPLS.

    Module Requirements

    For information about the modules that support the underlying layer 2 service and MPLS on ERX14xx models, ERX7xx models, and the ERX310 Broadband Services 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 the underlying layer 2 service and MPLS.

    For information about the modules that support the underlying layer 2 service and MPLS on the E120 or E320 Broadband Services Router:

    • 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 the underlying layer 2 service and MPLS.

      Note: In the current release, the E120 and E320 routers supports all layer 2 services over MPLS shown in the bulleted list in Layer 2 Services over MPLS Overview except ATM with AAL5 encapsulation, ATM with VCC cell relay encapsulation, Frame Relay, and HDLC.

    Interface Specifiers

    Many of the configuration task examples in this chapter use the slot/port[.subinterface ] format to specify the physical interface for the underlying layer 2 service. However, the interface specifier format that you use depends on the router that you are using.

    For ERX7xx models, ERX14xx models, and ERX310 routers, use the slot/port[.subinterface ] format. For example, the following command specifies ATM 1483 subinterface 10 on slot 0, port 1 of an ERX7xx model, ERX14xx model, or ERX310 router.

    host1(config)#interface atm 0/1.10

    For the E120 router and the E320 router, use the slot/adapter/port[.subinterface ] format, which includes an identifier for the bay in which the I/O adapter (IOA) resides. In the software, adapter 0 identifies the right IOA bay (E120 router) and the upper IOA bay (E320 router); adapter 1 identifies the left IOA bay (E120 router) and the lower IOA bay (E320 router). For example, the following command specifies ATM 1483 subinterface 20 on slot 5, adapter 0, port 0 of an E320 router.

    host1(config)#interface atm 5/0/0.20
     

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    Published: 2014-08-18