Motorola 6806800C08B Manual Do Utilizador

The main tasks of the MBCSv are:

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Dynamic discovery of peer entities

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Providing an interface to the active entity for checkpointing the state updates to the stand-
by peers

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Whenever the clients’s role changes to stand-by from any other role or whenever a new 
active client is detected, the client synchronizes its state with that of the active client (cold 
synchronization)

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Periodic synchronization of the client’s state with that of the currently active client to obtain 
an abbreviated summary account (warm synchronization)

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Driving client behavior depending on the HA role assigned by the client application

The only component of the MBCSv is the Message-Based Checkpointing Agent (MBCA). It 
provides stateful, message-based checkpoint replication services for its clients. For more 
details about the MBCA refer to the Message Based Checkpointing Service Programmer's 
Reference. 

The Interface Service (IfSv) provides a common means of configuring physical and logical 
interface information in the NCS system, and allowing that information to be distributed to all 
applications and services within the system. 

The IfSv provides a means by which applications and NCS services can delete and modify 
interface information for which they are responsible. 

The IfSv supports the MIB II Interfaces group of managed objects as well as some Motorola 
extensions. Furthermore IfSv supports the RMON-MIB defined in RFC 2819 and RMON2-MIB 
defined in RFC 2021.  

The IfSv interfaces with an ifIndexAlocator Platform Service in order to define an ifIndex value 
for each interface created. If this service is not provided, IfSv generates an ifIndex using an 
internal mechanism. 

The IfSv consists of the following components:

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Interface Director

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Interface Agents