Avaya Configuring ATM and MPLS Services Uživatelský manuál stáhnout pdf (Strana 42)

100

101

Configuring ATM and MPLS Services

1-12

117374-C Rev 00

Rules for Editing Protocols

Depending on the type of virtual circuit you are using, Site Manager requires you

to add additional protocols, or delete and edit existing protocols, from specific

protocol menus.

Use Table 1-3

to locate the appropriate protocol menu for each access mode.

Remember, hybrid PVCs use their service record configurations for nonbridging

protocols and their individual configurations for bridging protocols.

Data Encapsulation Methods

Bay Networks ATM routers support multiprotocol encapsulation (as defined in

RFC 1483), enabling the router to multiplex (combine) and demultiplex (separate)

bridged or routed protocol data units (PDUs).

For transmission, the encapsulation process adds a header from 2 to 8 octets in

length to the PDU to allow decoding. The decoding process determines the proper

service access point (SAP).

When receiving information, the encapsulation method evaluates the header to

determine whether the PDU is a valid routed or bridged cell. If it is valid, the

encapsulation method then strips the header from the cell and passes the cell to the

appropriate SAP for routing or bridging.

Table 1-3. Locating and Using Site Manager Protocol Menus

Site Manager Menu Location PVCs and SVCs Hybrid PVCs Only

ATM Service Records List window

†

ATM Virtual Channel Link window

For nonbridging protocols

†

For bridging protocols

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 528 529

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